Publications
| Title | Abstract | Year(sorted ascending) Filter | PMID Filter |
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| sucrose transporters of higher plants. | recent advances have provided new insights into how sucrose is moved from sites of synthesis to sites of utilisation or storage in sink organs. sucrose transporters play a central role, as they orchestrate sucrose allocation both intracellularly and at the whole plant level. sucrose produced in mesophyll cells of leaves may be effluxed into the apoplasm of mesophyll or phloem parenchyma cells by a mechanism that remains elusive, but experimentally consistent with facilitated transport or energy- ... | 2010 | 20303321 |
| c4gem, a genome-scale metabolic model to study c4 plant metabolism. | leaves of c(4) grasses (such as maize [zea mays], sugarcane [saccharum officinarum], and sorghum [sorghum bicolor]) form a classical kranz leaf anatomy. unlike c(3) plants, where photosynthetic co(2) fixation proceeds in the mesophyll (m), the fixation process in c(4) plants is distributed between two cell types, the m cell and the bundle sheath (bs) cell. here, we develop a c(4) genome-scale model (c4gem) for the investigation of flux distribution in m and bs cells during c(4) photosynthesis. c ... | 2010 | 20974891 |
| high-yield endoglucanase production by trichoderma harzianum ioc-3844 cultivated in pretreated sugarcane mill byproduct. | the low-cost production of cellulolytic complexes presenting high action at mild conditions and well-balanced cellulase activities is one of the major bottlenecks for the economical viability of the production of cellulosic ethanol. in the present paper, the filamentous fungus trichoderma harzianum ioc-3844 was used for the production of cellulases from a pretreated sugarcane bagasse (namely, cellulignin), by submerged fermentation. this fungal strain produced high contents of endoglucanase acti ... | 2010 | 21048871 |
| high gravity fermentation of sugarcane molasses to produce ethanol: effect of nutrients. | fermentation efficiency of more than 85% was obtained by high gravity fermentation of 33-34°bx (spec. gravity ≈1.134) molasses medium with certain nutrients, instead of generally employed medium containing ≈16% (w/v) total sugar (spec. gravity ≈1.090) for ethanol fermentation in distilleries to get maximum 80-85% conversion. the fermenting yeast, saccharomyces, has varied capabilities, depending on the species and nutrition for fermenting the high solids medium. the fermentation period was reduc ... | 2010 | 22815577 |
| phylogenetic relationships among saccharum clones in pakistan revealed by rapd markers. | forty sugarcane genotypes (clones), including elite lines, commercial cultivars of saccharum officinarum and s. barberi clones, were fingerprinted with 30 rapd markers, using a pcr-based marker assay. the genetic distance for rapd data was determined according to nei, and relationships between accessions were graphed in a dendrogram. genetic distance values ranging from 16.2 to 86.3% were observed among the 40 sugarcane accessions. the lowest genetic distance was found between genotypes us-406 a ... | 2010 | 20799164 |
| setaria viridis: a model for c4 photosynthesis. | c(4) photosynthesis drives productivity in several major food crops and bioenergy grasses, including maize (zea mays), sugarcane (saccharum officinarum), sorghum (sorghum bicolor), miscanthus x giganteus, and switchgrass (panicum virgatum). gains in productivity associated with c(4) photosynthesis include improved water and nitrogen use efficiencies. thus, engineering c(4) traits into c(3) crops is an attractive target for crop improvement. however, the lack of a small, rapid cycling genetic mod ... | 2010 | 20693355 |
| gish characterization of erianthus arundinaceus chromosomes in three generations of sugarcane intergeneric hybrids. | within erianthus, a genus close to saccharum, the species e. arundinaceus has the potential to contribute valuable traits to sugarcane, including adaptation to biotic and abiotic stresses and ratooning ability. sugarcane breeders have tried for a long time to use erianthus species in their breeding programs but until recently were constrained by a lack of fertile saccharum x erianthus hybrids. we report here for the first time the chromosome composition of fertile saccharum officinarum x e. arun ... | 2010 | 20616864 |
| genetic studies of "noble cane" for identification and exploitation of genetic markers. | forty genotypes (clones) of sugarcane, including elite lines, commercial cultivars of saccharum officinarum and clones of s. barberi were fingerprinted with 50 ssr markers using a pcr-based marker assay. nei's genetic distances for ssr data were determined and relationships between accessions were portrayed graphically in the form of a dendrogram. genetic distance values ranging from 0.60 to 1.11 were observed among the 40 sugarcane accessions. the shortest genetic distance of 0.60 was seen betw ... | 2010 | 20533196 |
| dna profiling of sugarcane genotypes using randomly amplified polymorphic dna. | dna profiles of 40 sugarcane genotypes were constructed with 30 rapd markers. sugarcane genotypes of both saccharum officinarum and s. barberi were included in this study. multiple alleles were detected from each rapd; there was a high level of polymorphism. on average, 7.93 alleles were produced per primer, giving a total of 238 alleles. the genetic distances between these genotypes were assessed with the popgene dna sequence analysis software. a dendrogram was constructed from these data; cult ... | 2010 | 20391332 |
| adsorption behavior of heavy metals onto chemically modified sugarcane bagasse. | a new process for the xanthation of sugarcane (saccharum officinarum) bagasse was investigated for the separation of cadmium, lead, nickel, zinc and copper from their aqueous solutions. adsorption capacity of the charred xanthated sugarcane bagasse (cxsb) was found to be significantly more than the several biosorbents reported in the literatures. the modified material was characterized by ftir and elemental analysis. the kinetics of sorption of the tested metals was fast, reaching equilibrium wi ... | 2010 | 20006923 |
| [cloning and expression pattern of a zinc finger protein gene shsap1 in saccharum officinarum]. | in plants, proteins with a20/an1 zinc finger domain are involved in stress responses, named as "stress associated protein" (sap) gene family. based on expressed sequence tag (est) sequences information in badila saccharum officinarum mature related cdna library, we cloned an sap gene from sugarcane full length cdna library, named shsap1 (genbank: accession no. hm991960). to characterize shsap1, we analyzed its genome structure and expression pattern. southern blot analysis showed shsap1 was pres ... | 2011 | 22034815 |
| inference of subgenomic origin of bacs in an interspecific hybrid sugarcane cultivar by overlapping oligonucleotide hybridizations. | sugarcane (saccharum spp.) breeders in the early 20th century made remarkable progress in increasing yield and disease resistance by crossing saccharum spontaneum l., a wild relative, to saccharum officinarum l., a traditional cultivar. modern sugarcane cultivars have approximately 71%-83% of their chromosomes originating from s. officinarum, approximately 10%-21% from s. spontaneum, and approximately 2%-13% recombinant or translocated chromosomes. in the present work, c(0)t-based cloning and se ... | 2011 | 21883018 |
| antioxidant and tyrosinase inhibitory constituents from a desugared sugar cane extract, a byproduct of sugar production. | recycling agricultural resources has become an important issue worldwide promoting the economical value of agricultural production processes. desugared sugar cane extract (dse) from saccharum officinarum is a byproduct obtained during sugar production. two new neolignan glucosides, saccharnan a (1) and saccharnan b (2), together with 10 known phenolics (3-12) were isolated from dse, and their structures were elucidated on the basis of nmr spectral analysis. compounds 3, 4, 8, and 9 showed good a ... | 2011 | 21770441 |
| global climate niche estimates for bioenergy crops and invasive species of agronomic origin: potential problems and opportunities. | the global push towards a more biomass-based energy sector is ramping up efforts to adopt regionally appropriate high-yielding crops. as potential bioenergy crops are being moved around the world an assessment of the climatic suitability would be a prudent first step in identifying suitable areas of productivity and risk. additionally, this assessment also provides a necessary step in evaluating the invasive potential of bioenergy crops, which present a possible negative externality to the bioec ... | 2011 | 21408056 |
| c4 plants as biofuel feedstocks: optimising biomass production and feedstock quality from a lignocellulosic perspective. | the main feedstocks for bioethanol are sugarcane (saccharum officinarum) and maize (zea mays), both of which are c(4) grasses, highly efficient at converting solar energy into chemical energy, and both are food crops. as the systems for lignocellulosic bioethanol production become more efficient and cost effective, plant biomass from any source may be used as a feedstock for bioethanol production. thus, a move away from using food plants to make fuel is possible, and sources of biomass such as w ... | 2011 | 21205189 |
| expression analysis of sugarcane shaggy-like kinase (susk) gene identified through cdna subtractive hybridization in sugarcane (saccharum officinarum l.). | identification of genes whose expression enables plants to adapt to any kind of stresses is integral to developing stress tolerance in crop plants. in this study, pcr-based cdna suppression subtractive hybridization technique was used to construct sugarcane salt (nacl) stress specific forward and reverse subtracted cdna library. for this, mrnas were pooled from the shoot and root tissues stressed with nacl (200 mm) for various time intervals (0.5 to 18 h). sequencing the clones from the forward ... | 2011 | 20853012 |
| dissecting the genome of the polyploid crop oilseed rape by transcriptome sequencing. | polyploidy complicates genomics-based breeding of many crops, including wheat, potato, cotton, oat and sugarcane. to address this challenge, we sequenced leaf transcriptomes across a mapping population of the polyploid crop oilseed rape (brassica napus) and representative ancestors of the parents of the population. analysis of sequence variation and transcript abundance enabled us to construct twin single nucleotide polymorphism linkage maps of b. napus, comprising 23,037 markers. we used these ... | 2011 | 21804563 |
| in vivo genotoxicity evaluation of atrazine and atrazine-based herbicide on fish carassius auratus using the micronucleus test and the comet assay. | atrazine is a selective triazine herbicide used to control broadleaf and grassy weeds mainly in corn, sorghum, sugarcane, pineapple, and other crops, and in conifer reforestation planting fields. it has been showed that atrazine is one of the most frequently detected pesticides in agricultural streams and rivers, over the past two decades. although the toxic properties of atrazine are well known, the data on the genotoxic effects of atrazine on aquatic organisms are rather scarce. thus, in the p ... | 2011 | 21443921 |
| phytotherapy in medieval serbian medicine according to the pharmacological manuscripts of the chilandar medical codex (15-16th centuries). | the chilandar medical codex is the most significant and best preserved medieval serbian manuscript and collects together documents on european medical science from the 12th to 15th centuries. it represents the best-known and most complete example of a large collection of medical manuscripts from the salerno-montpellier school, written in the vernacular - something which does not exist among the majority of european nations. this paper presents the section of the codex that deals with phytotherap ... | 2011 | 21708242 |
| screening and production of ligninolytic enzyme by a marine-derived fungal pestalotiopsis sp. j63. | marine-derived fungi are prone to produce structurally unique secondary metabolites, a considerable number of which display the promising biological properties and/or industrial applications. among those, ligninolytic enzymes have attracted great interest in recent years. in this work, about 20 strains were isolated from sea mud samples collected in the east china sea and then screened for their capacity to produce lignin-degrading enzymes. the results showed that a strain, named j63, had a grea ... | 2011 | 21947763 |
| evaluation of grinding methods for pellets preparation aiming at the analysis of plant materials by laser induced breakdown spectrometry. | it has been demonstrated that laser induced breakdown spectrometry (libs) can be used as an alternative method for the determination of macro (p, k, ca, mg) and micronutrients (b, fe, cu, mn, zn) in pellets of plant materials. however, information is required regarding the sample preparation for plant analysis by libs. in this work, methods involving cryogenic grinding and planetary ball milling were evaluated for leaves comminution before pellets preparation. the particle sizes were associated ... | 2011 | 21872013 |
| sugar cane burning pollution and respiratory symptoms in schoolchildren in monte aprazível, southeastern brazil. | to estimate the prevalence of respiratory symptoms and to analyze associated factors as well as peak expiratory flow measurements in schoolchildren. | 2011 | 21829978 |
| functional markers for gene mapping and genetic diversity studies in sugarcane. | the database of sugarcane expressed sequence tags (est) offers a great opportunity for developing molecular markers that are directly associated with important agronomic traits. the development of new est-ssr markers represents an important tool for genetic analysis. in sugarcane breeding programs, functional markers can be used to accelerate the process and select important agronomic traits, especially in the mapping of quantitative traits loci (qtl) and plant resistant pathogens or qualitative ... | 2011 | 21798036 |
| second generation ethanol in brazil: can it compete with electricity production? | much of the controversy surrounding second generation ethanol production arises from the assumed competition with first generation ethanol production; however, in brazil, where bioethanol is produced from sugarcane, sugarcane bagasse and trash will be used as feedstock for second generation ethanol production. thus, second generation ethanol production may be primarily in competition with electricity production from the lignocellulosic fraction of sugarcane. a preliminary technical and economic ... | 2011 | 21795041 |
| reuse of sugarcane bagasse ash (scba) to produce ceramic materials. | sugarcane bagasse ash (scba) is a residue resulting from the burning of bagasse in boilers in the sugarcane/alcohol industry. scba has a very high silica concentration and contains aluminum, iron, alkalis and alkaline earth oxides in smaller amounts. in this work, the properties of sintered ceramic bodies were evaluated based on the concentration of scba, which replaced non-plastic material. the ash was mixed (up to 60 wt%) with a clayed raw material that is used to produce roof tiles. prismatic ... | 2011 | 21733619 |
| cellulases and hemicellulases from endophytic acremonium species and its application on sugarcane bagasse hydrolysis. | the aim of this work was to have cellulase activity and hemicellulase activity screenings of endophyte acremonium species (acremonium zeae ea0802 and acremonium sp. ea0810). both fungi were cultivated in submerged culture (sc) containing l -arabinose, d -xylose, oat spelt xylan, sugarcane bagasse, or corn straw as carbon source. in solid-state fermentation, it was tested as carbon source sugarcane bagasse or corn straw. the highest fpase, endoglucanase, and xylanase activities were produced by a ... | 2011 | 21573756 |
| enzymatic hydrolysis of chemithermomechanically pretreated sugarcane bagasse and samples with reduced initial lignin content. | chemithermomechanical (ctm) processing was used to pretreat sugarcane bagasse with the aim of increasing cell wall accessibility to hydrolytic enzymes. yields of the pretreated samples were in the range of 75-94%. disk refining and alkaline-ctm and alkaline/sulfite-ctm pretreatments yielded pretreated materials with 21.7, 17.8, and 15.3% of lignin, respectively. hemicellulose content was also decreased to some extent. fibers of the pretreated materials presented some external fibrillation, fiber ... | 2011 | 21344677 |
| [men of the sugarcane fields and their hospitals: the architecture of health under the estado novo]. | the article explores the emergence of an architectural heritage in the realm of healthcare assistance for workers in the sugarcane agroindustry in brazil following enactment of the law known as the estatuto da lavoura canavieira (1941), under the auspices of the instituto do açúcar e do álcool and as part of estado novo policies (1937-1945). the institute proposed solutions based on surveys conducted at sugarcane mills in cane-producing states and on the medical and hospital system adopted by th ... | 2011 | 22240948 |
| chemical composition and enzymatic digestibility of sugarcane clones selected for varied lignin content. | the recalcitrance of lignocellulosic materials is a major limitation for their conversion into fermentable sugars. lignin depletion in new cultivars or transgenic plants has been identified as a way to diminish this recalcitrance. in this study, we assessed the success of a sugarcane breeding program in selecting sugarcane plants with low lignin content, and report the chemical composition and agronomic characteristics of eleven experimental hybrids and two reference samples. the enzymatic diges ... | 2011 | 22145819 |
| chemical and morphological characterization of sugarcane bagasse submitted to a delignification process for enhanced enzymatic digestibility. | in recent years, biorefining of lignocellulosic biomass to produce multi-products such as ethanol and other biomaterials has become a dynamic research area. pretreatment technologies that fractionate sugarcane bagasse are essential for the successful use of this feedstock in ethanol production. in this paper, we investigate modifications in the morphology and chemical composition of sugarcane bagasse submitted to a two-step treatment, using diluted acid followed by a delignification process with ... | 2011 | 22122978 |
| characterization of commercial cellulases and their use in the saccharification of a sugarcane bagasse sample pretreated with dilute sulfuric acid. | this study aimed to correlate the efficiency of enzymatic hydrolysis of the cellulose contained in a sugarcane bagasse sample pretreated with dilute h(2)so(4) with the levels of independent variables such as initial content of solids and loadings of enzymes and surfactant (tween 20), for two cellulolytic commercial preparations. the preparations, designated cellulase i and cellulase ii, were characterized regarding the activities of total cellulases, endoglucanase, cellobiohydrolase, cellobiase, ... | 2011 | 20953894 |
| evaluating the use of predatory insects as bioindicators of metals contamination due to sugarcane cultivation in neotropical streams. | streams located in areas of sugarcane cultivation receive high concentrations of metal ions from soils of the adjacent areas causing accumulation of metals in the aquatic sediment. this impact results in environmental problems and leads to bioaccumulation of metal ions in aquatic organisms. in the present study, metal concentrations in different predatory insects were studied in streams near sugarcane cultivation and compared to reference sites. possible utilisation of predatory insects as bioin ... | 2011 | 20711857 |
| conservation and divergence of plant lhp1 protein sequences and expression patterns in angiosperms and gymnosperms. | floral transition is a critical and strictly regulated developmental process in plants. mutations in arabidopsis like heterochromatin protein 1 (atlhp1)/terminal flower 2 (tfl2) result in early and terminal flowers. little is known about the gene expression, function and evolution of plant lhp1 homologs, except for arabidopsis lhp1. in this study, the conservation and divergence of plant lhp1 protein sequences was analyzed by sequence alignments and phylogeny. lhp1 expression patterns were compa ... | 2011 | 21416255 |
| specific plant induced biofilm formation in methylobacterium species. | two endophytic strains of methylobacterium spp. were used to evaluate biofilm formation on sugarcane roots and on inert wooden sticks. results show that biofilm formation is variable and that plant surface and possibly root exudates have a role in methylobacterium spp. host recognition, biofilm formation and successful colonization as endophytes. | 2011 | 24031703 |
| draft genome sequences of xanthomonas sacchari and two banana-associated xanthomonads reveal insights into the xanthomonas group 1 clade. | we present draft genome sequences for three strains of xanthomonas species, each of which was associated with banana plants (musa species) but is not closely related to the previously sequenced banana-pathogen xanthomonas campestris pathovar musacearum. strain ncppb4393 had been deposited as xanthomonas campestris pathovar musacearum but in fact falls within the species xanthomonas sacchari. strain ncppb1132 is more distantly related to xanthomonas sacchari whilst strain ncppb 1131 grouped in a ... | 2011 | 24710305 |
| Epiphytic pink-pigmented methylotrophic bacteria enhance germination and seedling growth of wheat (Triticum aestivum) by producing phytohormone. | Methylotrophic bacteria were isolated from the phyllosphere of different crop plants such as sugarcane, pigeonpea, mustard, potato and radish. The methylotrophic isolates were differentiated based on growth characteristics and colony morphology on methanol supplemented ammonium mineral salts medium. Amplification of the mxaF gene helped in the identification of the methylotrophic isolates as belonging to the genus Methylobacterium. Cell-free culture filtrates of these strains enhanced seed germi ... | 2011 | 22200783 |
| Continuous two stage acetone-butanol-ethanol fermentation with integrated solvent removal using Clostridium acetobutylicum B 5313. | The objective of this study was to optimize continuous acetone-butanol-ethanol (ABE) fermentation using a two stage chemostat system integrated with liquid-liquid extraction of solvents produced in the first stage. This minimized end product inhibition by butanol and subsequently enhanced glucose utilization and solvent production in continuous cultures of Clostridium acetobutylicum B 5313. During continuous two-stage ABE fermentation, sugarcane bagasse was used as the cell holding material for ... | 2011 | 22197332 |
| use of sugarcane molasses "b" as an alternative for ethanol production with wild-type yeast saccharomyces cerevisiae itv-01 at high sugar concentrations. | molasses "b" is a rich co-product of the sugarcane process. it is obtained from the second step of crystallization and is richer in fermentable sugars (50-65%) than the final molasses, with a lower non-sugar solid content (18-33%); this co-product also contains good vitamin and mineral levels. the use of molasses "b" for ethanol production could be a good option for the sugarcane industry when cane sugar prices diminish in the market. in a complex medium like molasses, osmotolerance is a desirab ... | 2011 | 21971607 |
| Diversity of 16S rRNA genes from bacteria of sugarcane rhizosphere soil. | Sugarcane is an important agricultural product of Brazil, with a total production of more than 500 million tons. Knowledge of the bacterial community associated with agricultural crops and the soil status is a decisive step towards understanding how microorganisms influence crop productivity. However, most studies aim to isolate endophytic or rhizosphere bacteria associated with the plant by culture-dependent approaches. Culture-independent approaches allow a more comprehensive view of entire ba ... | 2011 | 22042267 |
| Developing a sustainable phytomanagement strategy for excessive selenium in western United States and India. | Phytomanagement technology is recognized as an inexpensive and environmental friendly strategy for managing natural-occurring selenium (Se) in soils and in poor quality waters. Multi-year field and greenhouse studies were conducted with different plant species in California, USA and Punjab, India under high Se growing conditions. Some of the plant species included; canola (Brassica napus), mustard (B. juncea), broccoli (B. oleracea), spearmint (Mentha viridis), sugarcane (Saccharum officcinarum) ... | 2011 | 22046761 |
| Recombinant Gluconacetobacter diazotrophicus containing Cry1Ac gene codes for 130-kDa toxin protein. | Recombinant Gluconacetobacter diazotrophicus containing Cry1Ac gene from Bacillus thuringiensis var. kurstaki borne on pKT230, shuttle vector, was generated. PCR amplification of Cry1Ac gene present in recombinant G. diazotrophicus yielded a 278-bp DNA product. The nitrogenase assay has revealed that the recombinant G. diazotrophicus in sugarcane stem produced similar levels of nitrogenase compared to wild-type G. diazotrophicus. The presence of 130-kDa protein in apoplastic fluid from sugarcane ... | 2011 | 21934327 |
| down regulation of a gene for cadherin, but not alkaline phosphatase, associated with cry1ab resistance in the sugarcane borer diatraea saccharalis. | the sugarcane borer, diatraea saccharalis, is a major target pest of transgenic corn expressing bacillus thuringiensis (bt) proteins (i.e., cry1ab) in south america and the mid-southern region of the united states. evolution of insecticide resistance in such target pests is a major threat to the durability of transgenic bt crops. understanding the pests' resistance mechanisms will facilitate development of effective strategies for delaying or countering resistance. alterations in expression of c ... | 2011 | 21991350 |
| Enzymatic hydrolysis and simultaneous saccharification and fermentation of alkali/peracetic acid-pretreated sugarcane bagasse for ethanol and 2,3-butanediol production. | The enzymatic digestibility of alkali/peracetic acid (PAA)-pretreated bagasse was systematically investigated. The effects of initial solid consistency, cellulase loading and addition of supplemental ß-glucosidase on the enzymatic conversion of glycan were studied. It was found the alkali-PAA pulp showed excellent enzymatic digestibility. The enzymatic glycan conversion could reach about 80% after 24 h incubation when enzyme loading was 10 FPU/g solid. Simultaneous saccharification and fermentat ... | 2011 | 22112569 |
| molecular characterization of a new strain of sugarcane streak mosaic virus (scsmv). | the complete nucleotide sequences of three sugarcane streak mosaic virus (scsmv) isolates found in sugarcane plants imported from japan (jp1, jp2) and indonesia (id) into china were determined. sequence analysis showed that, based on the whole genome sequence and the nucleotide sequences encoding the ten mature proteins, the three scsmv isolates shared identities of 81.62%-81.67% and 76.39%-85.93%, respectively, with a pakistan (pak) isolate of scsmv. phylogenetic analysis indicated that scsmv-j ... | 2011 | 21927898 |
| functional characterization of sugarcane myb transcription factor gene promoter (pscmybas1) in response to abiotic stresses and hormones. | the sugarcane (saccharum officinarum) stress-related myb transcription factor gene, scmybas1, demonstrated induced response to water deficit and salt stress in our previous study. to elucidate its stress tolerance mechanism at the transcriptional level, we isolated and characterized the promoter (pscmybas1, 1,033 bp) flanking the 5' scmybas1 coding region from the sugarcane genome. a series of pscmybas1 deletion derivatives from the transcription start site (-56, -152, -303, -442, -613, -777, -8 ... | 2011 | 22083650 |
| sugarcane hsp101 is a hexameric chaperone that binds nucleotides. | the clp/hsp100 aaa+ chaperone family is involved in recovering aggregated proteins and little is known about other orthologs of the well studied clpb from escherichia coli and hsp104 from saccharomyces cerevisiae. plant hsp101 is a good model for understanding the relationship between the structure and function of hsp100 proteins and to investigate the role of these chaperones in disaggregation processes. here, we present the cloning and purification of a sugarcane ortholog, shsp101, which is ex ... | 2011 | 21903129 |
| acquisition and transmission of peanut clump virus by polymyxa graminis on cereal species. | the objective of this study was to investigate the specificity of the interactions between polymyxa graminis, peanut clump virus (pcv), and cereals, particularly the acquisition and the transmission of the virus by three p. graminis formae speciales. a new strategy has been developed: it involves using sugarcane as the common host for both the virus and its vector in order to produce the viruliferous zoospores of p. graminis f. sp. subtropicalis, temperata, and tropicalis that were then inoculat ... | 2011 | 21916623 |
| the actinobacterium microbacterium sp. 16sh accepts pbbr1-based pprobe vectors, forms biofilms, invades roots, and fixes n(2) associated with micropropagated sugarcane plants. | members of the genus microbacterium lineage of gram-positive actinobacteria are increasingly being reported to display significant traits associated with environmental biotechnology and bioengineering. 16sh is a nitrogen-fixing bacterial strain isolated from a surface-sterilized stem of sugarcane grown in guangxi, china. analysis of 16s rrna gene sequences revealed that 16sh belonged to the genus microbacterium. pprobe-ptet(r) plasmids were constructed by cloning the promoter region of the tet ... | 2011 | 22002067 |
| influence of nutritional and environmental factors on ethanol and endopolygalacturonase co-production by kluyveromyces marxianus ccebi 2011. | ethanol and endopolygalacturonase (endopg) are simultaneously produced by the yeast kluyveromyces marxianus ccebi 2011. the aim of this study was to determine the optimal combination of seven environmental and nutritional variables, as well as the influence of each one, with respect to the fermentation process in yeast cultures in which sugarcane juice was the substrate. simplex sequential optimization showed that after 15 runs the optimal conditions were: ph, 4.6; temperature, 31 ºc; total redu ... | 2011 | 22015701 |
| sugarcane biopolymer patch in femoral vein angioplasty on dogs. | to evaluate the use of the sugarcane biopolymer membrane in femoral vein patch angioplasty on dogs. | 2011 | 21890306 |
| Cellulase production from agricultural residues by recombinant fusant strain of a fungal endophyte of the marine sponge Latrunculia corticata for production of ethanol. | Several fungal endophytes of the Egyptian marine sponge Latrunculia corticata were isolated, including strains Trichoderma sp. Merv6, Penicillium sp. Merv2 and Aspergillus sp. Merv70. These fungi exhibited high cellulase activity using different lignocellulosic substrates in solid state fermentations (SSF). By applying mutagenesis and intergeneric protoplast fusion, we have obtained a recombinant strain (Tahrir-25) that overproduced cellulases (exo-ß-1,4-glucanase, endo-ß-1,4-glucanase and ß-1,4 ... | 2011 | 21898149 |
| hydrothermal pretreatment of sugarcane bagasse using response surface methodology improves digestibility and ethanol production by ssf. | sugarcane bagasse was characterized as a feedstock for the production of ethanol using hydrothermal pretreatment. reaction temperature and time were varied between 160 and 200°c and 5-20 min, respectively, using a response surface experimental design. the liquid fraction was analyzed for soluble carbohydrates and furan aldehydes. the solid fraction was analyzed for structural carbohydrates and klason lignin. pretreatment conditions were evaluated based on enzymatic extraction of glucose and xylo ... | 2011 | 22080307 |
| Establishment of regeneration and transformation system of sugarcane cultivar GT54-9 (C9). | Plant regeneration protocols for sugarcane GT54-9(C9) cultivar were developed for direct organogenesis and indirect somatic embryogenesis, using young leaf segments as explants by studying the influence of different concentrations and types of cytokinin and auxin hormones. For the callus formation from young leaves, a medium containing 4mg/l 2,4-D was found very effective. For embryo formation, MS medium supplemented with 1mg/l Kin and 0.5 mg/l 2,4-D was used. While in the case of direct organog ... | 2011 | 21912218 |
| Identification of yeast associated with the planthopper, Perkinsiella saccharicida: potential applications for Fiji leaf gall control. | Yeasts associate with numerous insects, and they can assist the metabolic processes within their hosts. Two distinct yeasts were identified by PCR within the planthopper Perkinsiella saccharicida, the vector of Fiji disease virus to sugarcane. The utility of both microbes for potential paratransgenic approaches to control Fiji leaf gall (FLG) was assessed. Phylogenetic analysis showed one of the microbes is related to yeast-like symbionts from the planthoppers: Laodelphax striatellus, Nilaparvat ... | 2011 | 21850475 |
| Surface carbohydrate analysis and bioethanol production of sugarcane bagasse pretreated with the white rot fungus, Ceriporiopsis subvermispora and microwave hydrothermolysis. | Effects of pretreatments with a white rot fungus, Ceriporiopsis subvermispora, and microwave hydrothermolysis of bagasse on enzymatic saccharification and fermentation were evaluated. The best sugar yield, 44.9 g per 100g of bagasse was obtained by fungal treatments followed by microwave hydrothermolysis at 180°C for 20 min. Fluorescent-labeled carbohydrate-binding modules which recognize crystalline cellulose (CjCBM3-GFP), non-crystalline cellulose (CjCBM28-GFP) and xylan (CtCBM22-GFP) were app ... | 2011 | 21903385 |
| isolation of a gastroprotective arabinoxylan from sugarcane bagasse. | after industrial processing, one-third of sugarcane culms is converted into residual bagasse. the xylan-rich hemicellulose components of the bagasse were extracted with hot aqueous alkali (ax-crude). approximately 82% of the extracted hemicelluloses was precipitated with ethanol (ax-pet). both ax-crude and ax-pet contained an arabinoxylan as confirmed by 13c nmr and methylation analysis. fraction ax-pet was fed to female wistar rats with ethanol-induced gastric lesions. oral administrations of 3 ... | 2011 | 21945160 |
| characterization of chloroplast dna microsatellites from saccharum spp and related species. | microsatellites, or simple sequence repeats (ssrs), and their flanking regions in chloroplast genomes (plastomes) of some species of the family poaceae were analyzed in silico to look for dna sequence variations. comparison of the complete chloroplast dna sequences (cpdnas) of sugarcane (saccharum hybrid cv. sp-80-3280 and s. officinarum cv. nco310) and related species, agrostis stolonifera, brachypodium distachyon, hordeum vulgare subsp vulgare, lolium perenne, oryza nivara, o. sativa sub ... | 2011 | 21948764 |
| microbial diversity in the larval gut of field and laboratory populations of the sugarcane weevil sphenophorus levis (coleoptera, curculionidae). | the sugarcane weevil, sphenophorus levis, is a wide-spread sugarcane pest in brazil. sphenophorus levis may depend on microorganisms that inhabit its intestinal tract. we examined the diversity of the gut microbiota of s. levis, which was characterized using culture-dependent and culture-independent methods. analysis of 16s rrna amplified directly from the gut community revealed the presence of 14 genera, one group from the candidatus category, one uncultured group assigned to the family f ... | 2011 | 22057964 |
| a comparative study of ph modulation and trace elements of various fruit juices on enamel erosion: an in vitro study. | fruit juices are popular worldwide with children of all ages as they are sweet and perceived to be healthful. this in vitro study was sought to measure ph of 10 different fruit juices, to find out possible erosive effects on human dental enamel of 40 extracted sound premolars and also to measure fluoride and trace elements of these juices. the estimation of ph of fruit juices was done by using systronic uph 362 ph meter. the erosive effects of fruit juices were tested by using polarized light mi ... | 2011 | 21985876 |
| holocellulase activity from schizophyllum commune grown on bamboo: a comparison with different substrates. | the natural biodiversity that is found in tropical areas offers countless biotechnological opportunities; especially if we take in account that many biomolecules from several microorganisms have supported for many years, different industrial applications in areas such as pharmacology, agro-industry, bioprocess, environmental technology, and bioconversion. in order to find new lignocellulolytic enzymes and evaluate bamboo fibers as substrate, schizophyllum commune a fungus with broad distribution ... | 2011 | 21964940 |
| quantitative proteomic analysis of lignocellulolytic enzymes by phanerochaete chrysosporium on different lignocellulosic biomass. | lignocellulosic biomass from agricultural crop residues and forest waste represents an abundant renewable resource for bioenergy and future biofuel. the current bottleneck of lignocellulosic biofuel production is the hydrolysis of biomass to sugar. to understand the enzymatic hydrolysis of complex biomasses, in this report, lignocellulolytic enzymes secretion by phanerochaete chrysosporium cultivated in different natural lignocellulosic biomass such as corn stover, hay, sawdust, sugarcane baggas ... | 2011 | 22146477 |
| efficient conversion of sugarcane stalks into ethanol employing low temperature alkali pretreatment method. | an alternative route for bio-ethanol production from sugarcane stalks (juice and bagasse) featuring a previously reported low temperature alkali pretreatment method was evaluated. test-tube scale pretreatment-saccharification experiments were carried out to determine optimal lta pretreatment conditions for sugarcane bagasse with regard to the efficiency of enzymatic hydrolysis of the cellulose. free fermentable sugars and bagasse recovered from 2 kg of sugarcane stalks were jointly converted int ... | 2011 | 22000967 |
| transcriptome analysis of aspergillus niger grown on sugarcane bagasse. | abstract: | 2011 | 22008461 |
| poly(3-hydroxybutyrate) production by bacillus cereus spv using sugarcane molasses as the main carbon source. | the main hindrance in the use of polyhydroxyalkanoates (phas) as a replacement for existing petroleum-based plastics is their high production cost. the carbon source accounts for 50% of the cost for pha production. thus, increasing the yield and productivity of phas on cheap substrates is an important challenge for biotechnologists to support the commercialization and further applications of these polymers. in this study, we have investigated the use of an agricultural raw material, sugarcane mo ... | 2011 | 22147642 |
| predominant nifh transcript phylotypes related to rhizobium rosettiformans in field-grown sugarcane plants and in norway spruce. | although some sugarcane cultivars may benefit substantially from biological nitrogen fixation (bnf), the responsible bacteria have been not identified yet. here, we examined the active diazotrophic bacterial community in sugarcane roots from africa and america by reverse transcription (rt)-pcr using broad-range nifh-specific primers. denaturing gradient gel electrophoresis (dgge) profiles obtained from sugarcane showed a low diversity at all sample locations with one phylotype amounting up to 10 ... | 2011 | 23761284 |
| effect of reduced sulfur compounds on the fermentation of phosphoric acid pretreated sugarcane bagasse by ethanologenic escherichia coli. | the addition of reduced sulfur compounds (thiosulfate, cysteine, sodium hydrosulfite, and sodium metabisulfite) increased growth and fermentation of dilute acid hydrolysate of sugarcane bagasse by ethanologenic escherichia coli (strains ly180, emfr9, and mm160). with sodium metabisulfite (0.5mm), toxicity was sufficiently reduced that slurries of pretreated biomass (10% dry weight including fiber and solubles) could be fermented by e. coli strain mm160 without solid-liquid separation or cleanup ... | 2011 | 21353535 |
| immunotherapeutic effects of some sugar cane (saccharum officinarum l.) extracts against coccidiosis in industrial broiler chickens. | present paper reports the effects of aqueous and ethanolic extracts of sugar cane (saccharum officinarum l.) juice and bagasse, respectively on protective immune responses in industrial broiler chickens against coccidiosis. immunotherapeutic efficacies of the extracts were measured by evaluating their effect on body weight gain, oocyst shedding, lesion score, anti-coccidial indices, per cent protection and elicited serum antibody responses against coccidiosis. results revealed a significantly lo ... | 2011 | 21354144 |
| d(-)-lactic acid production by leuconostoc mesenteroides b512 using different carbon and nitrogen sources. | sugar concentration from sugarcane juice and yeast autolysate increased lactic acid production more than the other agro-industrial substrates tested. the concentrations of these two components were further optimized using the plackett-burman design and response surface method. a second-order polynomial regression model estimated that a maximal lactic acid production of 66.11 g/l would be obtained when the optimal values of sugar and yeast autolysate were 116.9 and 44.25 g/l, respectively. to val ... | 2011 | 21360091 |
| anaerobic thermophilic fermentation for carboxylic acid production from in-storage air-lime-treated sugarcane bagasse. | wet storage and in situ lime pretreatment (50 °c, 1-atm air, 56 days, excess lime loading of 0.3 g ca(oh)(2)/g dry biomass) of sugarcane bagasse (4,000 g dry weight) was performed in a bench-scale pile pretreatment system. under thermophilic conditions (55 °c, nh(4)hco(3) buffer, methane inhibitors), air-lime-treated bagasse (80 wt.%) and chicken manure (20 wt.%) were anaerobically co-digested in 1-l rotary fermentors by a mixed culture of marine microorganisms (galveston, tx). during four-stage ... | 2011 | 21365471 |
| duplex-immunocapture-rt-pcr for detection and discrimination of two distinct potyviruses naturally infecting sugarcane (saccharum spp. hybrid). | a sensitive duplex-immunocapture-rt-pcr (d-ic-rt-pcr) technique was developed for detection and discrimination of taxonomically distinct sugarcane streak mosaic virus (scsmv) and sugarcane mosaic virus (scmv) that naturally infect sugarcane. d-ic-rt-pcr was performed using polyclonal antisera for capture of virions. oligo 5'-d(t)18(agc)-3' as a common reverse primer for both viruses and virus specific forward primers, 5'-aagtggttaaacgcctgtgg-3' and 5'-atgtc(ga)aagaa(ga)atgcgcttgc-3' were used fo ... | 2011 | 21365999 |
| improvement of ethanol production using saccharomyces cerevisiae by enhancement of biomass and nutrient supplementation. | optimization of ethanol production through addition of substratum and protein-lipid additives was studied. oilseed meal extract was used as protein lipid supplement, while rice husk was used as substratum. the effect of oil seed meal extract and rice husk was observed at varying concentration of medium sugar from 8% to 20%. of the three oil seed meal extracts used, viz. groundnut, safflower, and sunflower, safflower was found to be most efficient. the use of oilseed meal extract at 4% was found ... | 2011 | 21373793 |
| digestive physiology and characterization of digestive cathepsin l-like proteinase from the sugarcane weevil sphenophorus levis. | sugarcane is an important crop that has recently become subject to attacks from the weevil sphenophorus levis, which is not efficiently controlled with chemical insecticides. this demands the development of new control devices for which digestive physiology data are needed. in the present study, ion-exchange chromatography of s. levis whole midgut homogenates, together with enzyme assays with natural and synthetic substrates and specific inhibitors, demonstrated that a cysteine proteinase is a m ... | 2011 | 21256130 |
| production of astaxanthin from cellulosic biomass sugars by mutants of the yeast phaffia rhodozyma. | astaxanthin is a potential high-value coproduct in an ethanol biorefinery. three mutant strains of the astaxanthin-producing yeast phaffia rhodozyma, which were derived from the parent strain atcc 24202 (ucd 67-210) and designated jtm166, jtm185, and ssm19, were tested for their capability of utilizing the major sugars that can be generated from cellulosic biomass, including glucose, xylose, and arabinose, for astaxanthin production. while all three strains were capable of metabolizing these sug ... | 2011 | 21274657 |
| use of soybean vinasses as a germinant medium for a geobacillus stearothermophilus atcc 7953 sterilization biological indicator. | a novel low-cost medium was developed from by-products and wastes from the ethanol agro-industry to replace commercial media in the production of a steam sterilization biological indicator (bi). various recovery media were developed using soybean or sugarcane molasses and vinasse to prepare a self-contained bi. media performance was evaluated by viability and heat resistance (d(121 °c) value) according to regulatory standards. a medium produced with a soybean vinasse ratio of 1:70 (1.4%) (w/v) p ... | 2011 | 21336685 |
| [sugarcane biopolymer membrane: experimental evaluation in the middle ear]. | new developments on biomaterials are important in surgery. the behavior of a new membrane produced from sugarcane will be evaluated in the middle ear of rats. | 2011 | 21340188 |
| the genome sequence of e. coli w (atcc 9637): comparative genome analysis and an improved genome-scale reconstruction of e. coli. | escherichia coli is a model prokaryote, an important pathogen, and a key organism for industrial biotechnology. e. coli w (atcc 9637), one of four strains designated as safe for laboratory purposes, has not been sequenced. e. coli w is a fast-growing strain and is the only safe strain that can utilize sucrose as a carbon source. lifecycle analysis has demonstrated that sucrose from sugarcane is a preferred carbon source for industrial bioprocesses. | 2011 | 21208457 |
| bioconversion of novel substrate saccharum spontaneum, a weedy material, into ethanol by pichia stipitis ncim3498. | rising fuel prices and environmental issues have paved the way for the exploration of cellulosic ethanol. however, challenges involving substrate hydrolysis and cost-effectiveness still limit the efficient bioconversion and utilization of cellulosic ethanol. we aimed to evaluate a cheaper and abundantly available wild sugarcane variety, saccharum spontaneum, as the raw substrate for bioconversion of ethanol by pichia stipitis ncim3498. three different strategies for substrate hydrolysis using ac ... | 2011 | 20822899 |
| improving the fermentability of enzymatic hydrolysates of lignocellulose through chemical in-situ detoxification with reducing agents. | inhibitory lignocellulose hydrolysates were treated with the reducing agents dithionite and sulfite to achieve improved fermentability. addition of these reducing agents (in the concentration range 5.0-17.5 mm) to enzymatic hydrolysates of spruce wood or sugarcane bagasse improved processes based on both shf (simultaneous hydrolysis and fermentation) and ssf (simultaneous saccharification and fermentation). the approach was exemplified in ethanolic fermentations with saccharomyces cerevisiae and ... | 2011 | 20822900 |
| genomic and evolutionary features of the spi-1 type iii secretion system that is present in xanthomonas albilineans but is not essential for xylem colonization and symptom development of sugarcane leaf scald. | xanthomonas albilineans is the causal agent of sugarcane leaf scald. interestingly, this bacterium, which is not known to be insect or animal associated, possesses a type iii secretion system (t3ss) belonging to the injectisome family salmonella pathogenicity island 1 (spi-1). the t3ss spi-1 of x. albilineans shares only low similarity with other available t3ss spi-1 sequences. screening of a collection of 128 plant-pathogenic bacteria revealed that this t3ss spi-1 is present in only two species ... | 2011 | 20955079 |
| quantitative proteomic analysis of the interaction between the endophytic plant-growth-promoting bacterium gluconacetobacter diazotrophicus and sugarcane. | gluconacetobacter diazotrophicus is a plant-growth-promoting bacterium that colonizes sugarcane. in order to investigate molecular aspects of the g. diazotrophicus-sugarcane interaction, we performed a quantitative mass spectrometry-based proteomic analysis by (15)n metabolic labeling of bacteria, root samples, and co-cultures. overall, more than 400 proteins were analyzed and 78 were differentially expressed between the plant-bacterium interaction model and control cultures. a comparative analy ... | 2011 | 21190439 |
| identification of new candidate pathogenicity factors in the xylem-invading pathogen xanthomonas albilineans by transposon mutagenesis. | xanthomonas albilineans is a xylem-invading pathogen that produces the toxin albicidin that blocks chloroplast differentiation, resulting in disease symptoms of sugarcane leaf scald. in contrast to other xanthomonads, x. albilineans does not possess a hypersensitive response and pathogenicity type iii secretion system and does not produce xanthan gum. albicidin is the only previously known pathogenicity factor in x. albilineans, yet albicidin-deficient mutant strains are still able to efficientl ... | 2011 | 21190440 |
| bioethanol production from dedicated energy crops and residues in arkansas, usa. | globally, one of the major technologic goals is to achieve cost-effective lignocellulosic ethanol production from biomass feedstocks. lignocellulosic biomass of four dedicated energy crops [giant reed (arundo donax l.), elephantgrass (pennisetum purpureum (schumach), miscanthus × giganteus (illinois clone), and (clone q42641) {hybrid of miscanthus sinensis anderss. and miscanthus sacchariflorus (maxim)}, hack. called giant miscanthus, and sugarcane clone us 84-1028 (saccharum l. spp. hybrid)] an ... | 2011 | 21086455 |
| biotechnology tools in agriculture: recent patents involving soybean, corn and sugarcane. | the technological opportunities opened up by biotechnology in agriculture are diverse, including plant breeding, the partial or total relief of pesticides chemicals usage, the improvement of soil fertility, the improvement of the quality attributes of various foods. specifically, various tricks of biotechnology can be used for higher seed yield, resistance to diseases and insects, better stems and roots, tolerance to drought and heat, and better agronomic quality. a number of recent works consid ... | 2011 | 21226663 |
| short distance movement of genomic negative strands in a host and nonhost for sugarcane mosaic virus (scmv). | in order to obtain an initial and preliminary understanding of host and nonhost resistance in the initial step of potyvirus replication, both positive and negative sugarcane mosaic virus (scmv) strands where traced in inoculated and systemic leaves in host and nonhost resistant maize and sugarcane for one mexican potyviral isolate (scmv-ver1). intermediary replication forms, such as the negative viral strand, seem to only move a short distance as surveyed by rt-pcr analysis and elisa in differen ... | 2011 | 21232133 |
| isomaltulose is actively metabolized in plant cells. | isomaltulose is a structural isomer of sucrose (suc). it has been widely used as a nonmetabolized sugar in physiological studies aimed at better understanding the regulatory roles and transport of sugars in plants. it is increasingly used as a nutritional human food, with some beneficial properties including low glycemic index and acariogenicity. cloning of genes for suc isomerases opened the way for direct commercial production in plants. the understanding that plants lack catabolic capabilitie ... | 2011 | 22010106 |
| comparative study of the areas of osteochondral defects produced in the femoral condyles of rabbits treated with gel of sugarcane biopolymer. | to measure the healed areas of osteochondral defects produced in femoral condyles of rabbits filled with biopolymer sugar cane gel and to compare these with those of the control group at 90, 120 and 180 days. | 2011 | 21952662 |
| Molecular Identification of Fusarium Species in Gibberella fujikuroi Species Complex from Rice, Sugarcane and Maize from Peninsular Malaysia. | The objective of this study was to identify Fusarium species in the Gibberella fujikuroi species complex from rice, sugarcane and maize as most of the Fusarium species in the species complex are found on the three crops. Isolates used were collected from the field and obtained from culture collection. The Fusarium isolates were initially sorted based on morphology and identifications confirmed based on the DNA sequence of the translation elongation factor 1-a (TEF-1a) gene. Based on the closest ... | 2011 | 22072914 |
| injection of air into the headspace improves fermentation of phosphoric acid pretreated sugarcane bagasse by escherichia coli mm170. | microaeration (injecting air into the headspace) improved the fermentation of hemicellulose hydrolysates obtained from the phosphoric acid pretreatment of sugarcane bagasse at 170°c for 10min. in addition, with 10% slurries of phosphoric acid pretreated bagasse (180°c, 10min), air injection into the headspace promoted xylose utilization and increased ethanol yields from 0.16 to 0.20g ethanol/g bagasse dry weight using a liquefaction plus simultaneous saccharification and co-fermentation process ... | 2011 | 21531547 |
| molecular analysis of the complete genomic sequences of four isolates of gooseberry vein banding associated virus. | the presence of gooseberry vein banding associated virus (gvbav), a badnavirus in the family caulimoviridae, is strongly correlated with gooseberry vein banding disease in ribes spp. in this study, full-length genomic sequences of four gvbav isolates from different hosts and geographic regions were determined to be 7649-7663 nucleotides. these isolates share identities of 96.4-97.3% for the complete genomic sequence, indicating low genetic diversity among them. the gvbav genome contains three op ... | 2011 | 21533750 |
| f(2) screening for resistance to pyramided bacillus thuringiensis maize in louisiana and mississippi populations of diatraea saccharalis (lepidoptera: crambidae). | background: in the mid-southern region of the united states, sugarcane borer, diatraea saccharalis (f.), is a major target pest of transgenic maize expressing bacillus thuringiensis (bt) proteins. novel transgenic maize technologies containing two or more pyramided bt genes for controlling lepidopteran pests have recently become commercially available. insect resistance management (irm) is an important issue in the sustainable use of bt crop technologies. the objective of this study was to deter ... | 2011 | 21538799 |
| enhanced ethanol production from sugarcane juice by galactose adaptation of a newly isolated thermotolerant strain of pichia kudriavzevii. | the thermotolerant yeast strain isolated from sugarcane juice through enrichment technique was identified as a strain of pichiakudriavzevii (issatchenkiaorientalis) through molecular characterization. the p. kudriavzevii cells adapted to galactose medium produced about 30% more ethanol from sugarcane juice than the non-adapted cells. the recycled cells could be used for four successive cycles without a significant drop in ethanol production. fermentation in a laboratory fermenter with galactose ... | 2011 | 21398115 |
| peroxisomal polyhydroxyalkanoate biosynthesis is a promising strategy for bioplastic production in high biomass crops. | polyhydroxyalkanoates (phas) are bacterial carbon storage polymers with diverse plastic-like properties. pha biosynthesis in transgenic plants is being developed as a way to reduce the cost and increase the sustainability of industrial pha production. the homopolymer polyhydroxybutyrate (phb) is the simplest form of these biodegradable polyesters. plant peroxisomes contain the substrate molecules and necessary reducing power for phb biosynthesis, but peroxisomal phb production has not been explo ... | 2011 | 21447054 |
| biodegradation of basic violet 3 by candida krusei isolated from textile wastewater. | basic violet 3 (bv) belongs to the most important group of synthetic colorants and is used extensively in textile industries. it is considered as xenobiotic compound which is recalcitrant to biodegradation. as candida krusei could not use bv as sole carbon source, experiments were conducted to study the effect of cosubstrates on decolorization of bv in semi synthetic medium using glucose, sucrose, lactose, maltose, yeast extract, peptone, urea and ammonium sulphate. maximum decolorization (74%) ... | 2011 | 21479732 |
| mutagenic activity of airborne particulate matter (pm(10)) in a sugarcane farming area (araraquara city, southeast brazil). | brazil contains 25% of the total land planted with sugarcane in the world and is thus one of the major producers. the annual burning of sugarcane fields prior to harvesting emits huge amounts of pyrogenic particles. biomass burning is an important primary and secondary source of aerosol particles. the presence of carbonaceous particles in the inhalable size range makes it important to study this fraction in view of the possible effects on human health and the climate. in this study, the mutageni ... | 2011 | 21481367 |
| biological control of red rot in sugarcane by native pyoluteorin-producing pseudomonas putida strain nh-50 under field conditions and its potential modes of action. | background: rhizobacteria have a good potential to suppress soilborne diseases, but their efficacy against sugarcane pests is rarely reported. bacterial strains isolated from the rhizosphere of sugarcane were evaluated for their potential to suppress red rot disease on two susceptible varieties, co-1148 and spf-234, under field conditions. the strains were also characterised for the production of secondary metabolites associated with their antagonistic activity. results: one out of four strains, ... | 2011 | 21495154 |
| production of sophorolipid glycolipid biosurfactants from sugarcane molasses using starmerella bombicola nbrc 10243. | biosurfactants (bs) are produced by a variety of microorganisms from renewable resources, and have unique properties compared to chemical surfactants. in order to attain efficient production of bs from low-cost materials, we focused our attention on the use of sugarcane molasses. fifteen yeast strains that are known as bs producers were examined for bs productivity from a culture medium consisting of only molasses and water. among the strains tested, only starmerella bombicola nbrc 10243 produce ... | 2011 | 21502725 |
| laboratory and field evaluation of metarhizium anisopliae var. anisopliae for controlling subterranean termites. | the efficacy of the metarhizium anisopliae strain arsef 6911 was determined in the laboratory and field against two sugarcane pests, microtermes obesi holmgren and odontotermes obesus rambur (termitidae: isoptera). the susceptibility of both termite species to different conidial suspensions (1 × 10(10), 1 × 10(8), 1 × 10(6) and 1 × 10(4) conidia/ml) was determined in laboratory. all conidial suspensions were able to induce mortality. termite mortality caused by the fungal suspensions was dose de ... | 2011 | 21584407 |
| global warming, plant paraquat resistance, and light signal transduction through nucleoside diphosphate kinase as a paradigm for increasing food supply. | light signal transduction was studied in extracts of mycelia of the fungus neurospora crassa, and the third internodes of dark-grown pisum sativum cv alaska. both processes increased the phosphorylation of nucleoside diphosphate kinase (ndpk). ndpk may function as a carrier of reduction equivalents, as it binds nadh, thereby providing electrons to transform singlet oxygen to superoxide by catalases (cat). as the c-termini of ndpk interact with cat which receive singlet oxygen, emitted from photo ... | 2011 | 21603975 |
| isolation of pseudozyma churashimaensis sp. nov., a novel ustilaginomycetous yeast species as a producer of glycolipid biosurfactants, mannosylerythritol lipids. | an ustilaginomycetous anamorphic yeast species isolated from the leaves of saccharum officinarum (sugarcane) in okinawa, japan, was identified as a novel pseudozyma species based on morphological and physiological aspects and molecular taxonomic analysis using the d1/d2 domains of the large subunit (26s) rrna gene and the internal transcribed spacer 1 (its1)-5.8s-its2 regions. the name pseudozyma churashimaensis sp. nov. was proposed for the novel species, with jcm 16988(t) as the type strain. i ... | 2011 | 21606002 |
| candida middelhoveniana sp. nov., a new yeast species found on the rhizoplane of organically cultivated sugarcane. | a novel yeast species within the metschnikowiaceae is described based on a strain from the sugarcane (saccharum sp.) rhizoplane of an organically managed farm in rio de janeiro, brazil. the d1/d2 domain of the large subunit ribosomal rna gene sequence analysis showed that the closest related species were candida tsuchiyae with 86.2% and candida thailandica with 86.7% of sequence identity. all three are anamorphs in the clavispora opuntiae clade. the name candida middelhoveniana sp. nov. is propo ... | 2011 | 21614495 |