Publications

TitleAbstractYear
Filter
PMID
Filter
novel strategy using an adsorbent-column chromatography for effective ethanol production from sugarcane or sugar beet molasses.molasses-based distilleries generate large volumes of a highly polluted and dark brown-colored wastewater. the present work describes the way in which an adsorbent-column chromatography can effectively remove the colorant and produce biomass ethanol from sugarcane or sugar beet molasses. it was found that the color and chemical oxygen demand of the resulting wastewater was respectively reduced by approximately 87% and 28% as compared with conventional molasses fermentation. gas chromatography sh ...200919467586
treatment of fibroids: the use of beets (beta vulgaris) and molasses (saccharum officinarum) as an herbal therapy by dominican healers in new york city. 200415138021
detection of added beet sugar in concentrated and single strength fruit juices by deuterium nuclear magnetic resonance (snif-nmr method): collaborative study.a collaborative study of the site-specific natural isotope fractionation-nuclear magnetic resonance (snif-nmr) method for detecting added beet sugar in fruit juices is reported. this method is complementary to the stable carbon isotope ratio analysis (scira) (aoac official methods 981.09 and 982.21), which can detect sugars derived from plants exhibiting c4 metabolism (corn and sugarcane). it is based on the fact that the deuterium content at specific positions of the sugar molecules is higher i ...20138757451
immunological evidence for the existence of a carrier protein for sucrose transport in tonoplast vesicles from red beet (beta vulgaris l.) root storage tissue.monoclonal antibodies were raised in mice against a highly purified tonoplast fraction from isolated red beet (beta vulgaris l. ssp. conditiva) root vacuoles. positive hybridoma clones and sub-clones were identified by prescreening using an enzyme-linked immunosorbent assay (elisa) and by postscreening using a functional assay. this functional assay consisted of testing the impact of hybridoma supernatants and antibody-containing ascites fluids on basal and atp-stimulated sugar uptake in vacuole ...199312231863
uridine 5'-diphospho-d-glucose-dependent vectorial sucrose synthesis in tonoplast vesicles of the storage hypocotyl of red beet (beta vulgaris l. ssp. conditiva).tonoplast vesicles were prepared from red-beet (beta vulgaris l. ssp. conditiva) hypocotyl tubers ("beetroot") known to store sucrose. uptake experiments, employing uridine 5'-diphospho-[(14)c]glucose (udp-[(14)c]glucose) showed the operation of an udp-glucose-dependent group translocator for vectorial synthesis and accumulation of sucrose, recently described for sugarcane and red-beet vacuoles and for tonoplast vesicles prepared from sugarcane suspension cells. characterization of the kinetic p ...198824226185
sucrose phosphatase associated with vacuole preparations from red beet, sugar beet, and immature sugarcane stem.the specific phosphatase, sucrose phosphate phosphohydrolase (sucrose phosphatase, ec 3.1.3.24) was present in vacuole preparations from storage tissue of red beet (beta vulgaris l.), sugar beet (beta vulgaris l. cultivar kawemono), and immature sugarcane (saccharum spp. hybrid, cultivar nco 310). in red beet vacuole preparations the specific activity of sucrose phosphatase, using the naturally occurring vacuole marker, betanin, as reference, was higher than the specific activity of cytoplasmic ...198716665598
evidence for the involvement of a udp-glucose-dependent group translocator in sucrose uptake into vacuoles of storage roots of red beet.vacuoles isolated from the storage roots of red beet (beta vulgaris l.) accumulate sucrose via two different mechanisms. one mechanism transports sucrose directly, and its rate is increased by the addition of mgatp. the other mechanism utilizes uridine diphosphate glucose (udp-glucose) to synthesize and simultaneously transport sucrose phosphate and sucrose into the vacuole. this group translocation mechanism has also been found in sugarcane vacuoles. as in sugarcane, the beet group translocator ...198624240312
sucrose hydrolysis in relation to phloem translocation in beta vulgaris.asymmetrically labeled sucrose, (14)c(fructosyl)sucrose, was used to determine whether sucrose undergoes extracellular hydrolysis during phloem translocation in the sugar beet, beta vulgaris. in addition, the metabolism of various sugars accumulated and translocated was determined in various regious of the plant. these processes were studied in detached regions as well as in the intact, translocating plant in the source leaf, along the translocation path, and in a rapidly growing sink leaf and s ...197716660089
activation of polyphenol oxidase of chloroplasts.polyphenol oxidase of leaves is located mainly in chloroplasts isolated by differential or sucrose density gradient centrifugation. this activity is part of the lamellar structure that is not lost on repeated washing of the plastids. the oxidase activity was stable during prolonged storage of the particles at 4 c or -18 c. the km (dihydroxyphenylalanine) for spinach leaf polyphenol oxidase was 7 mm by a spectrophotometric assay and 2 mm by the manometric assay. polyphenol oxidase activity in the ...197316658308
effects of roughage sources produced in a tropical environment on forage intake, and ruminal and microbial parameters.our objective was to study the effect of different roughage sources produced in a tropical environment on intake, digestibility, and ruminal parameters of crossbred bulls. five rumen-fistulated 30-mo-old holstein × bos indicus bulls (average bw =459 ± 32.5 kg) were utilized in a 5 × 5 randomized latin square design. the experiment consisted of five 19-d experimental periods (10 d for adaptation and 9 d for data collection) and 5 treatments. experimental diets consisted of corn (zea mays l.) sila ...201526020332
dietary nitrate supplementation reduces methane emission in beef cattle fed sugarcane-based diets.the objective of this study was to determine the effect of dietary nitrate on methane emission and rumen fermentation parameters in nellore × guzera (bos indicus) beef cattle fed a sugarcane based diet. the experiment was conducted with 16 steers weighing 283 ± 49 kg (mean ± sd), 6 rumen cannulated and 10 intact steers, in a cross-over design. the animals were blocked according to bw and presence or absence of rumen cannula and randomly allocated to either the nitrate diet (22 g nitrate/kg dm) o ...201222287674
the assessment and the farmers' perceived ranking of feed resources and coping strategies with feed scarcity in smallholder dairy farming in selected district towns of jimma zone, ethiopia.inadequate quantity and quality of feed resources are major constraints limiting milk production and reproductive performance of dairy cattle in ethiopia. the aim of this study was to assess dairy cattle feed resources, feeding practices, the farmers' perceived ranking of feed resources, causes of feed shortage, and coping strategies to feed scarcity in smallholder dairy system in selected district towns of jimma zone, ethiopia. data were obtained by interviewing 52 randomly selected smallholder ...201728389982
energy and protein requirements for growth of holstein × gyr heifers.there is little information regarding the nutritional requirements for dairy heifers, leading the majority of nutrient requirement systems to consider dairy heifers to be similar to beef heifers. therefore, we evaluated the muscle protein metabolism and physical and chemical body composition of growing holstein × gyr heifers and estimated the energy and protein requirements. we performed a comparative slaughter experiment with 20 holstein × gyr heifers at an initial body weight of 218 ± 36.5 kg ...201728299852
tithonia diversifolia as a supplementary feed for dairy cows.the objective of this study was to examine the effects of tithonia diversifolia as a supplementary forage on dairy cow performance and methane production. nine lactating holstein × zebu dairy cows (519 ± 53.3 kg of body weight and 66 ± 13.3 d in milk) were paired by milk yield (21.3 ± 2.34 kg/d) and body weight and randomly assigned to three dietary treatments in a latin square design with 21-d experimental periods (14 d for diet adaptation and 7 d for measurements and sample collection). the di ...201627906983
the comparison of digestibility of treated sugarcane tops silage by bacteria or whole microorganisms of holstein cow and buffalo rumen.the aim of this study was to evaluate the effects of adding sulfuric acid to sugarcane tops silage on rumen bacteria and whole rumen microorganisms (wrm) and compare the digestibility of sugarcane tops treated with different amount of urea, molasses and sulfuric acid between holstein cow and khouzestan buffalo. regardless of the type of the treatment, potential of gas production (b) by cow wrm (130.670 ml) was more than buffalo (104.060 ml) (p < 0.05), but the rate of gas production (c) by buffa ...201627872716
lessons learned from the microbial ecology resulting from different inoculation strategies for biogas production from waste products of the bioethanol/sugar industry.during strategic planning of a biogas plant, the local availability of resources for start-up and operation should be taken into consideration for a cost-efficient process. because most bioethanol/sugar industries in brazil are located in remote areas, the use of fresh cattle manure from local farms could be a solution for the inoculation of the biogas process. this study investigated the diversity and dynamics of bacterial and archaeal communities and the performance of biogas reactors inoculat ...201627429647
assessment of feed resources, feeding practices and coping strategies to feed scarcity by smallholder urban dairy producers in jimma town, ethiopia.smallholder dairy production is increasingly becoming popular in jimma town. however, feed shortage is a major constraint to dairy production. the objectives of this study was to assess feed resources, feeding practices and farmers' perceived causes of feed shortage and coping strategies to feed scarcity in smallholder dairy producers in jimma town, oromia regional state, ethiopia. a total of 54 randomly selected dairy farmers were interviewed using a pre-tested structured questionnaire and thro ...201627375986
applying functional metagenomics to search for novel lignocellulosic enzymes in a microbial consortium derived from a thermophilic composting phase of sugarcane bagasse and cow manure.environments where lignocellulosic biomass is naturally decomposed are sources for discovery of new hydrolytic enzymes that can reduce the high cost of enzymatic cocktails for second-generation ethanol production. metagenomic analysis was applied to discover genes coding carbohydrate-depleting enzymes from a microbial laboratory subculture using a mix of sugarcane bagasse and cow manure in the thermophilic composting phase. from a fosmid library, 182 clones had the ability to hydrolyse carbohydr ...201627350392
effect of treating sugarcane bagasse with urea and calcium hydroxide on feed intake, digestibility, and rumen fermentation in beef cattle.four beef cattle with initial body weight of 283 ± 14 kg were randomly allocated according to a 4 × 4 latin square design to study on the effect of feeding sugarcane bagasse (sb) treated with urea and/or calcium hydroxide (ca(oh)2) on feed intake, digestibility, and rumen fermentation. the treatments were as follows: rice straw (rs), untreated sb (sb), 4 % urea-treated sb (sbu), and 2 % urea + 2 % ca(oh)2-treated sb (sbuc), respectively. the results revealed that cattle fed with sbu and sbuc had ...201627139254
flint corn grain processing and citrus pulp level in finishing diets for feedlot cattle.four trials were conducted to evaluate the effects of flint corn processing and the replacement of corn with citrus pulp (cip) in diets for nellore feedlot cattle. in a 103-d finishing trial, 216 nellore bulls (350 ± 24 kg initial bw) were used in a randomized complete block design with a 2 × 4 factorial arrangement of treatments. factors included 2 processing methods, either ground corn (gc) or steam-flaked corn (fc), with cip replacing each corn type at 4 levels (0, 25, 50, and 75% of dm). all ...201627065137
performance and metabolism of calves fed starter feed containing sugarcane molasses or glucose syrup as a replacement for corn.the aim of this study was to evaluate the effect of replacing corn grain for sugar cane molasses (mo) or glucose syrup (gs) in the starter concentrate on performance and metabolism of dairy calves. thirty-six individually housed holstein male calves were blocked according to weight and date of birth and assigned to one of the starter feed treatments, during an 8 week study: i) starter containing 65% corn with no mo or gs (0mo); ii) starter containing 60% corn and 5% mo (5mo); iii) starter contai ...201626954149
nutritional and productive performance of dairy cows fed corn silage or sugarcane silage with or without additives.the objective of this study was to compare the intake, digestibility, and performance of dairy cows fed corn silage, fresh sugarcane, and sugarcane ensiled in three different forms. twenty-five holstein cows at 114 ± 12.6 days in milk (dim) were used. a randomized block design was adopted, using an arrangement of repeated measures over time. the following treatments were tested: corn silage (cs); fresh sugarcane (fs); sugarcane silage without additives (scs); sugarcane silage enriched with calci ...201626898688
effects of various roughage levels with whole flint corn grain on performance of finishing cattle.performance responses to steam flaking flint corn as well as to the addition of roughage to finishing diets composed of whole flint corn were evaluated. ninety-six nellore bulls were stratified by initial bw (373 ± 11 kg) and randomly allotted to 16 feedlot pens (6 bulls/pen) in a randomized complete block design with 4 replicates/treatment. dietary treatments for the 86-d feeding trial consisted of (dm basis) 1) 78.8% steam-flaked flint corn with 6% sugarcane bagasse and 0.20% urea, 2) 85% whol ...201626812339
comparison of start-up strategies and process performance during semi-continuous anaerobic digestion of sugarcane filter cake co-digested with bagasse.the anaerobic digestion of sugarcane filter cake and the option of co-digestion with bagasse were investigated in a semi-continuous feeding regime to assess the main parameters used for large-scale process designing. moreover, fresh cattle manure was considered as alternative inoculum for the start-up of biogas reactors in cases where digestate from a biogas plant would not be available in remote rural areas. experiments were carried out in 6 lab-scale semi-continuous stirred-tank reactors at me ...201626584558
effect of flint corn processing method and roughage level on finishing performance of nellore-based cattle.this study was conducted to evaluate the effects of flint corn processing method (cpm) and level of ndf from roughage (rndf) on performance, carcass characteristics, and starch utilization by finishing nellore-based cattle fed high-concentrate, flint corn-based diets. in this study, 112 nellore type bulls (initial bw 384.07 ± 29.53 kg and 24-36 mo of age) were individually fed using calan gates or individual pens. the animals were used in a randomized complete block design in a 2 × 4 factorial a ...201526440182
performance of beef cows and calves fed different sources of rumen-degradable protein when grazing stockpiled limpograss pastures.two experiments evaluated the effects of different sources of rdp on forage characteristics, animal performance, and ruminal and blood parameters of beef cattle grazing stockpiled limpograss (hemarthria altissima) from january to may 2011 and 2012. in exp. 1, 24 mature lactating beef cows and their respective calves were allocated to 8 stockpiled limpograss pastures (3 pairs/pasture). treatments were 2 different sources of rdp, urea or cottonseed (gossypium spp.) meal (csm), distributed in a com ...201526020215
evaluation of local energy sources in milk production in a tropical silvopastoral system with erythrina poeppigiana.an experiment was carried out to determine the effect of four local energy sources (sorghum grain, green banana, polished rice, and sugarcane molasses) fed to dairy cows on intake, milk production and composition, and economic viability in a silvopastoral system in costa rica (turrialba). twelve grazing cows (jersey × central american milking creole), with a mean live weight of 332 kg (sd 34), were supplemented with 0.5 kg of dry matter (dm)/100 kg/lw of erythrina porppigiana fresh foliage daily ...201525863954
exchanging physically effective neutral detergent fiber does not affect chewing activity and performance of late-lactation dairy cows fed corn and sugarcane silages.the objective of this study was to determine whether replacing the physically effective neutral detergent fiber (pendf) of corn silage with sugarcane silage pendf would affect performance in dairy cows. twenty-four late-lactation holstein cows were assigned to eight 3 × 3 latin squares with 21-d periods. the dietary treatments were (1) 25% pendf of corn silage, (2) 25% pendf of sugarcane silage, and (3) 12.5% pendf of corn silage + 12.5% pendf of sugarcane silage. the physical effectiveness fact ...201425242426
digesta sampling sites and marker methods for estimation of ruminal outflow in bulls fed different proportions of corn silage or sugarcane.the objective of this experiment was to assess ruminal outflow and apparent total-tract digestibility using digesta samples from 3 sites (reticulum, omasum, and abomasum) and 3 marker methods (single marker: indigestible ndf [indf; sample without separation]; double marker: indf + co-edta [filtered sample]; and triple marker: indf + ytterbium [yb] acetate + co-edta [filtered and centrifuged]) in bulls fed corn silage and sugarcane-based diets. eight crossbred (holstein × zebu) bulls (353 ± 37 kg ...201424778340
the impact of dietary sugarcane addition to finishing diets on performance, apparent digestibility, and fatty acid composition of holstein × zebu bulls.the objective of this study was to evaluate the influence of corn silage (cs) or sugarcane (sc) additions to finishing diets on voluntary intake, apparent digestibility, animal performance, and lm fatty acid (fa) composition in crossbred holstein × zebu bulls. forty-two bulls (initial bw 328 ± 39.2 kg and an initial age of 23.5 mo) were used in this experiment. a completely randomized design was used to examine roughage source (cs vs. sc) and ratio of concentrate (co) on nutrient utilization and ...201424713164
predicting greenhouse gas emissions and soil carbon from changing pasture to an energy crop.bioenergy related land use change would likely alter biogeochemical cycles and global greenhouse gas budgets. energy cane (saccharum officinarum l.) is a sugarcane variety and an emerging biofuel feedstock for cellulosic bio-ethanol production. it has potential for high yields and can be grown on marginal land, which minimizes competition with grain and vegetable production. the daycent biogeochemical model was parameterized to infer potential yields of energy cane and how changing land from gra ...201323991028
fibrolytic enzyme and ammonia application effects on the nutritive value, intake, and digestion kinetics of bermudagrass hay in beef cattle.the objectives were to compare the effect of exogenous fibrolytic enzyme (biocellulase a20) or anhydrous ammonia (4% dm) treatment on the nutritive value, voluntary intake, and digestion kinetics of bermudagrass (cynodon dactylon cultivar coastal) hay harvested after 2 maturities (5- and 13-wk regrowths). six individually housed, ruminally cannulated brangus steers (bw 325 ± 10 kg) were used in an experiment with a 6 × 6 latin square design with a 3 (additives) × 2 (maturities) factorial arrange ...201323893992
agriculture related corneal injuries.agricultural workers are predisposed to corneal injuries, which, if neglected, can lead to corneal blindness.201523584646
short-term effects of silage volatile compounds on feed intake and digestion in beef cattle.two experiments were conducted to evaluate whether fermentation end products in silage affect intake and digestion in beef cattle. six rumen-cannulated nellore steers were randomly assigned to a replicated 3 × 3 latin square design with 14-d periods. each period consisted of 9 d for adaptation and 5 d for sample collection. steers were housed in a tie-stall barn and individually fed once daily at 0800 h. the dietary treatments in exp. 1 were as follows: 60% corn silage plus 40% concentrate (con) ...201323478815
comparative metagenomic analysis of microcosm structures and lignocellulolytic enzyme systems of symbiotic biomass-degrading consortia.decomposition of lignocelluloses by cooperative microbial actions is an essential process of carbon cycling in nature and provides a basis for biomass conversion to fuels and chemicals in biorefineries. in this study, structurally stable symbiotic aero-tolerant lignocellulose-degrading microbial consortia were obtained from biodiversified microflora present in industrial sugarcane bagasse pile (bgc-1), cow rumen fluid (crc-1), and pulp mill activated sludge (asc-1) by successive subcultivation o ...201323381385
recovery of bovine lysozyme from transgenic sugarcane stalks: extraction, membrane filtration, and purification.increased industrial use of sugarcane (saccharum spp. hybrid) for food and bioenergy has led to considerable improvements in its genetic transformation, which allowed the development of not only pest- and herbicide-resistant lines but also lines expressing high-value bioproducts and biopolymers. however, the economic benefits of using inexpensive transgenic plant systems for the production of industrial proteins could be offset by high downstream processing costs. in this work, transgenic sugarc ...201323329238
production of methanol from biomass waste via pyrolysis.the production of methanol from agricultural, forestry, livestock, poultry, and fishery waste via pyrolysis was investigated. pyrolysis was conducted in a tube furnace at 450-500 °c. sugarcane bagasse showed the methanol production (5.93 wt.%), followed by roots and sawdust with 4.36 and 4.22 wt.%, respectively. animal waste offered the lowest content of methanol, as only 0.46, 0.80, and 0.61 wt.% were obtained from fishery, goat, and cow waste, respectively. it was also observed that the percen ...201323266847
vermicomposting of milk processing industry sludge spiked with plant wastes.this work illustrates the vermistabilization of wastewater sludge from a milk processing industry (mpis) unit spiked with cow dung (cd), sugarcane trash (st) and wheat straw (ws) employing earthworms eisenia fetida. a total of nine experimental vermibeds were established and changes in chemical parameters of waste material have been observed for 90 days. vermistabilization caused significant reduction in ph, organic carbon and c:n ratio and substantial increase in total n, available p and exchan ...201222609678
influence of different supplements and sugarcane (saccharum officinarum l.) cultivars on intake, digestible variables and methane production of dairy heifers under tropical conditions.the sulphur hexafluoride (sf(6)) gas tracer method was used to measure methane (ch(4)) production of crossbred (3/4 holstein x zebu) dairy heifers fed two types of sugarcane (saccharum officinarum l.; cultivar iac-862480 (cc1) or cultivar iac-873184 (cc2)) and supplemented with urea or concentrate. the study was performed at embrapa southeast cattle, são carlos, sp, brazil, using a completely randomised design. differences between treatments were significant for digestibility of dry matter, orga ...201222476735
short communication: nutrient utilization of fresh sugarcane-based diets with slow-release nonprotein nitrogen addition for control-fed dairy heifers.an experiment was conducted to determine the effect of replacing soybean protein (sbm) with a slow-release urea (sr-u) in control-fed dairy heifers in the tropics. eight holstein heifers (237.6±5.45 kg of body weight) were allocated to 2 treatments in a crossover design. treatments were control (sbm) and sr-u (optigen ii; alltech inc., nicholasville, ky). the forage-to-concentrate ratio was 50:50 [dry matter (dm) basis], and fresh chopped sugarcane was the sole source of forage. data were analyz ...201222192216
effect of different substrates and casing materials on the growth and yield of calocybe indica.calocybe indica, a tropical edible mushroom, is popular because it has good nutritive value and it can be cultivated commercially. the current investigation was undertaken to determine a suitable substrate and the appropriate thickness of casing materials for the cultivation of c. indica. optimum mycelial growth was observed in coconut coir substrate. primordia initiation with the different substrates and casing materials was observed between the 13th and 19th day. the maximum length of stalk wa ...201023956634
genome sequences of poaceae-associated gemycircularviruses from the pacific ocean island of tonga.we sampled and analyzed 43 poaceae plants from the pacific ocean island of tonga for the presence of circular dna viruses. from these samples, we recovered three gemycircularvirus genomes, which share >99% identity, from brachiaria deflexa (n = 2) and sugarcane (n = 1). these genomes share <61% genome-wide identity with other gemycircularvirus sequences in public databases.201526472826
new claims in folk veterinary medicines from uttar pradesh, india.in remote areas, folk medicines play a significant role in livestock health care management. the aims of this study were to document folk veterinary medicines of the uttar pradesh region and identify promising species for pharmacological studies.201323376281
selenium accumulation by forage and grain crops and volatilization from seleniferous soils amended with different organic materials.greenhouse and field experiments were conducted to study the direct and residual effect of applying different organic materials on se accumulation by crops and volatilization from seleniferous soils of northwestern india. among organic manures, press mud and poultry manures proved 4-5 times more effective in reducing se accumulation by different crops than farmyard manure. efficiency of organic manures increased with increase in application rates. application of both press mud and poultry manure ...201020015536
resource recovery potential from secondary components of segregated municipal solid wastes.fermentable components of municipal solid wastes (msw) such as fruit and vegetable wastes (fvw), leaf litter, paddy straw, cane bagasse, cane trash and paper are generated in large quantities at various pockets of the city. these form potential feedstocks for decentralized biogas plants to be operated in the vicinity. we characterized the fermentation potential of six of the above msw fractions for their suitability to be converted to biogas and anaerobic compost using the solid-state stratified ...200717503209
fluoride bioaccumulation by hydroponic cultures of camellia (camellia japonica spp.) and sugar cane (saccharum officinarum spp.).the ability of hydroponic cultures of camellia and sugar cane adult plants to remove fluoride was investigated. plants were grown in a 50% steiner nutrient solution. after an adaptation period to hydroponic conditions, plants were exposed to different fluoride concentrations (0, 2.5, 5 and 10 mg l(-1)). fluoride concentration in the culture medium and in tissues was measured. in sugar cane, fluoride was mainly located in roots, with 86% of it absorbed and 14% adsorbed. sugar cane plants removed ...201525930125
biotransformation of cannabidiol to cannabielsoin by suspension cultures of cannabis sativa and saccharum officinarum.suspension cultures of cannabis sativa l. and saccharum officinarum l. have been shown to biotransform cannabidiol to cannabielsoin under normal growth conditions. both cannabielsoin c-1 stereoisomers were produced. mass spectral and chromatographic evidence were used in this identification. this is the first reported biologically catalyzed synthesis of cannabielsoin as well as the first biotransformation of any cannabinoid by plant tissue culture systems. possible mechanisms and significance of ...198317404934
growth and expression of relevant metabolic genes of clostridium thermocellum cultured on lignocellulosic residues.the plant cell wall is a source of fermentable sugars in second-generation bioethanol production. however, cellulosic biomass hydrolysis remains an obstacle to bioethanol production in an efficient and low-cost process. clostridium thermocellum has been studied as a model organism able to produce enzymatic blends that efficiently degrade lignocellulosic biomass, and also as a fermentative microorganism in a consolidated process for the conversion of lignocellulose to bioethanol. in this study, a ...201728181082
agricultural case studies of classification accuracy, spectral resolution, and model over-fitting.this paper describes the relationship between spectral resolution and classification accuracy in analyses of hyperspectral imaging data acquired from crop leaves. the main scope is to discuss and reduce the risk of model over-fitting. over-fitting of a classification model occurs when too many and/or irrelevant model terms are included (i.e., a large number of spectral bands), and it may lead to low robustness/repeatability when the classification model is applied to independent validation data. ...201324160886
capacity of enzymes of the euphorbiacea aleurites montana involved in co2-fixation, compared to plants having c3-, c4- and crassulacean acid metabolism.capacities of phosphoenolpyruvate carboxylase (pep-co), ribulose bisphosphate carboxylase (rubisco), nadp+ malic enzyme (me) and of malate dehydrogenase (mdh) were measured in the euphorbiacea aleurites montana, grown under 700 ppm co2 for four weeks prior to enzyme extraction. for comparison bryophyllum daigremontiana (cam). saccharum officinarum (c4) and capsicum frutescens (c3) were treated in the same way. pep-co capacity of aleurites was in the range of 12-, that of capsicum approx. 26 nmol ...201310928549
physical and chemical properties of selected agricultural byproduct-based activated carbons and their ability to adsorb geosmin.the objectives of this study were to evaluate selected physical and chemical properties of agricultural byproduct-based activated carbons made from pecan shells and sugarcane bagasse, and compare those properties to a commercial coal-based activated carbon as well as to compare the adsorption efficiency of these carbons for geosmin. comparison of the physical and chemical properties of pecan shell- and bagasse-based carbons to the commercial carbon, calgon filtrasorb 400, showed that pecan shell ...200212139335
antibacterial activity and phytochemical evidence for the plant origin of turkish propolis from different regions.honeybees collect propolis from practically any abundant plant source in the neighborhood of the hive, be it populus, eucalyptus, pine, sugarcane, cashew nut or orange trees. we have described that the origin plants of turkish propolis are populus sp., eucalyptus sp. and castanea sativa. in our previous study, propolis samples from middle anatolia displayed the typical pattern of "poplar" propolis: they contained pinobanksin, caffeic and ferulic acids and their esters. the propolis samples exami ...200727517836
high-pressure carbon dioxide/water pre-treatment of sugarcane bagasse and elephant grass: assessment of the effect of biomass composition on process efficiency.the performance of two lignocellulosic biomasses was studied in high-pressure carbon dioxide/water pre-treatment. sugarcane bagasse and elephant grass were used to produce c5-sugars from hemicellulose and, simultaneously, to promote cellulose digestibility for enzymatic saccharification. different pre-treatment conditions, with combined severity factor ranging from -1.17 to -0.04, were evaluated and maximal total xylan to xylose yields of 59.2wt.% (34.4wt.% xylooligomers) and 46.4wt.% (34.9wt.% ...201727955864
decomposition rate and enzymatic activity of composted municipal waste and poultry manure in the soil in a biofuel crops field.biofuel crops are gaining importance because of the need to replace non-renewable sources. also, due to the increasing amounts of wastes generated, there is the need to recycle them to the soil, both to fertilize crops and to improve soil physical properties through organic matter increase and microbiological changes in the rhizosphere. we therefore studied the influence of six biofuel crops (elephant grass, giant cane, sugarcane, blue gum, black cottonwood, willow) on the decomposition rate and ...201727620351
elephant grass, sugarcane, and rice bran in diets for confined sheep.we aimed to evaluate the effects of diets, based on elephant grass or sugarcane as roughage and corn meal or rice bran as energy concentrate, on performance and body composition in terms of diet intake and digestibility. a total of 30 santa ines crossbreds (sic), castrated male sheep with 19.8 ± 2.0 kg initial body weight (bw) were used. six animals were slaughtered at the onset of the experiment to estimate the initial body composition for the other animals. the remaining 24 animals were distri ...201222528534
pretreatment of siam weed stem by several chemical methods for increasing the enzymatic digestibility.siam weed [chromolaena odorata (l.) king & robinson], an invasive exotic weed in china, was proposed as a feedstock for bioethanol production. this would be a promising way of using for an invasive weed that needs management and control. it was found that the glucan content of the weed stem was similar to that of sugarcane bagasse, but higher than those of corn stover and wheat straw. several chemical pretreatment methods were applied to the weed stem to increase its enzymatic digestibility. mil ...201020349449
badnaviruses: the current global scenario.badnaviruses (family: caulimoviridae; genus: badnavirus) are non-enveloped bacilliform dna viruses with a monopartite genome containing about 7.2 to 9.2 kb of dsdna with three to seven open reading frames. they are transmitted by mealybugs and a few species by aphids in a semi-persistent manner. they are one of the most important plant virus groups and have emerged as serious pathogens affecting the cultivation of several horticultural crops in the tropics, especially banana, black pepper, cocoa ...201627338451
deciphering the synergism of endogenous glycoside hydrolase families 1 and 9 from coptotermes gestroi.termites can degrade up to 90% of the lignocellulose they ingest using a repertoire of endogenous and symbiotic degrading enzymes. termites have been shown to secrete two main glycoside hydrolases, which are gh1 (ec 3.2.1.21) and gh9 (ec 3.2.1.4) members. however, the molecular mechanism for lignocellulose degradation by these enzymes remains poorly understood. the present study was conducted to understand the synergistic relationship between gh9 (cgeg1) and gh1 (cgbg1) from coptotermes gestroi, ...201323917163
characteristics and kinetic study on pyrolysis of five lignocellulosic biomass via thermogravimetric analysis.pyrolysis characteristics and kinetic of five lignocellulosic biomass pine wood sawdust, fern (dicranopteris linearis) stem, wheat stalk, sugarcane bagasse and jute (corchorus capsularis) stick were investigated using thermogravimetric analysis. the pyrolysis of five lignocellulosic biomass could be divided into three stages, which correspond to the pyrolysis of hemicellulose, cellulose and lignin, respectively. single gaussian activation energy distributions of each stage are 148.50-201.13 kj/m ...201526080101
microsatellite loci and genetic structure of artificial populations of cotesia flavipes (hymenoptera, braconidae).cotesia flavipes (cameron) is a parasitoid wasp used in the biological control of the sugarcane borer (diatraea saccharalis) (fabr., 1794). studies on the genetic diversity of c. flavipes are hampered by the lack of highly polymorphic molecular markers. in this report, a set of 11 microsatellite loci were developed from an enriched library of c. flavipes. four microsatellite loci were polymorphic and were screened in 212 c. flavipes individuals (183 females and 29 males) that were randomly sampl ...201627886334
quality of the exotic parasitoid cotesia flavipes (hymenoptera: braconidae) does not show deleterious effects after inbreeding for 10 generations.although the parasitoid cotesia flavipes (cameron) has proven effective in controlling sugarcane borer diatraea saccharalis (fabricius) for many years, concern has arisen over the quality of individuals produced at large scales. the parasitoid has been reared in laboratories in brazil for more than 40 years, with no new introductions of new populations during that period. since the quality of the parasitoids was not verified at the time of the species' introduction in brazil, we do not know if t ...201627509087
a two-agent model applied to the biological control of the sugarcane borer (diatraea saccharalis) by the egg parasitoid trichogramma galloi and the larvae parasitoid cotesia flavipes.the paper is aimed at a methodological development in biological pest control. the considered one pest two-agent system is modelled as a verticum-type system. originally, linear verticum-type systems were introduced by one of the authors for modelling certain industrial systems. these systems are hierarchically composed of linear subsystems such that a part of the state variables of each subsystem affect the dynamics of the next subsystem. recently, verticum-type system models have been applied ...201626911807
lethal and sublethal effects of lufenuron on sugarcane borer diatraea flavipennella and its parasitoid cotesia flavipes.the combination of chemical and biological controls is a historic goal of integrated pest management, but has rarely been achieved due to lethal and sublethal impact of insecticides on natural enemies altering their performance. in this context, the susceptibility of the yellow sugarcane borer, diatraea flavipennella (lepidoptera: crambidae), to the insect growth regulator lufenuron and the consequent effects upon its endoparasitoid cotesia flavipes (hymenoptera: braconidae) encountering exposed ...201526250937
impacts of nosema sp. (microsporidia: nosematidae) on the sugarcane borer, diatraea saccharalis (lepidoptera: crambidae).in brazil, the sugarcane borer, diatraea saccharalis (fabricius, 1794) (lepidoptera: crambidae), is controlled with massive releases of the hymenopteran parasitoid cotesia flavipes cam. (hymenoptera: braconidae); over 3 million hectares of sugarcane are treated annually with 18 billion parasitoids. in order to meet this demand, parasitoids are produced in d. saccharalis under laboratory conditions where a nosema sp. is reported to be an important problem in mass rearing of the host. the goals fo ...201525981134
feasibility of using an alternative larval host and host plants to establish cotesia flavipes (hymenoptera: braconidae) in the temperate louisiana sugarcane ecosystem.attempts to establish cotesia flavipes cameron (hymenoptera: braconidae) in louisiana sugarcane fields to control the sugarcane borer, diatraea saccharalis (f.) (lepidoptera: crambidae) have been unsuccessful. experiments were conducted to investigate the feasibility of using an alternative larval host and host plants to overcome barriers preventing establishment. in addition, we evaluated c. flavipes' ability to search for d. saccharalis in sugarcane without above-ground internodes. diatraea ev ...201222506999
mitochondria in the midgut epithelial cells of sugarcane borer parasitized by cotesia flavipes (cameron, 1891).the sugarcane borer diatraea saccharalis (lepidoptera: crambidae) has been controlled by cotesia flavipes (hymenoptera: braconidae); however, very little is known about the effect of the parasitism in the host organs, including the midgut. this work aims to verify mitochondrial alteration in the different midgut epithelial cells of d. saccharalis parasitized by c. flavipes. midgut fragments (anterior and posterior region) of both non-parasitized and parasitized larvae were processed for transmis ...201020231974
spherites in the midgut epithelial cells of the sugarcane borer parasitized by cotesia flavipes.diatraea saccharalis, the main pest of sugarcane, has been controlled by cotesia flavipes. very little is known about the effect of parasitism on the host organs, including the midgut. the lepidoptera midgut epithelium is composed of columnar, goblet, regenerative, and endocrine cells. spherites have been described in columnar and regenerative cells of several lepidoptera species, and presented a lot of functional meaning. we identified spherites in the midgut epithelial cells of non-parasitized ...200818669324
effectiveness of gf-120 fruit fly bait spray applied to border area plants for control of melon flies (diptera: tephritidae).in a field study in hawaii, color-marked protein-deprived and protein-fed female melon flies, bactrocera cucurbitae coquillett, were released within canopies of unsprayed sorghum plants (a nonhost of melon flies) outside of a border area of unsprayed or bait-sprayed sorghum plants or open space that surrounded cucumbers, a favored host of melon flies. application of bait spray to sorghum or sugarcane surrounding host plants of melon flies is a common practice for melon fly control in hawaii. gf- ...200314650522
ssr-enriched genetic linkage maps of bermudagrass (cynodon dactylon × transvaalensis), and their comparison with allied plant genomes.we report ssr-enriched genetic maps of bermudagrass that: (1) reveal partial residual polysomic inheritance in the tetraploid species, and (2) provide insights into the evolution of chloridoid genomes. this study describes genetic linkage maps of two bermudagrass species, cynodon dactylon (t89) and cynodon transvaalensis (t574), that integrate heterologous microsatellite markers from sugarcane into frameworks built with single-dose restriction fragments (sdrfs). a maximum likelihood approach was ...201728168408
photosynthetic co(2) fixation products and activities of enzymes related to photosynthesis in bermudagrass and other plants.after a 5-second exposure of illuminated bermudagrass (cynodon dactylon l. var. ;coastal') leaves to (14)co(2), 84% of the incorporated (14)c was recovered as aspartate and malate. after transfer from (14)co(2)-air to (12)co(2)-air under continuous illumination, total radioactivity decreased in aspartate, increased in 3-phosphoglyceric acid and alanine, and remained relatively constant in malate. carbon atom 1 of alanine was labeled predominantly, which was interpreted to indicate that alanine w ...197116657595
water quality, biofilm production and growth of fringe-lipped carp (labeo fimbriatus) in tanks provided with two solid substrates.the effects of two substrates, sugarcane bagasse (t(1)) and paddy straw (t(2)) on water quality and growth of labeo fimbriatus were studied in mud-bottomed, manured cement tanks, in triplicate; a set of three tanks without substrate served as control (t(3)). addition of manure and substrate brought about a decrease in dissolved oxygen level, but it stabilized after 15 days, when the tanks were stocked with 30 fish each, fed at 3% body weight daily and reared for 90 days. total ammonia content in ...200312507865
leaf microbodies (peroxisomes) and catalase localization in plants differing in their photosynthetic carbon pathways.the tropical grasses sugarcane (saccharum officinarum) and pangolagrass (digitaria decumbens) contained fewer leaf microbodies than temperate orchardgrass (dactylis glomerata). leaf microbodies were seen in both the mesophyll and bundle sheath cells of tropical grasses. the fibrous elements in the microbodies of tropical grasses differed from those of the temperate grass. catalase was predominantly localized in the microbodies of leaf cells (3,3'-diaminobenzidine method). the site of greatest ca ...197124493219
pleurotus biomass production on vinasse and its potential use for aquaculture feed.the vinasse is a by-product generated during the manufacture of alcohol from sugarcane fermentation. rich in organic matter, it is known that the vinasse has the potential to be used as a source of nutrients for plants as well as microorganisms. in this study, the fungi pleurotus sajor-caju, p. ostreatus, p. albidus and p. flabellatus were cultivated in vinasse and utilised as a complementary diet for danio rerio fish. the fungi mycelia cultured in vinasse for 15 days were lyophilised and offere ...201526000196
transient expression of electroporated dna in monocotyledonous and dicotyledonous species.transient expression of electroporated dna was monitored in protoplasts of several monocot and dicot species by assaying for expression of chimeric chloramphenicol acetyltransferase (cat) gene constructions. expression was obtained in the dicot species of daucus carota, glycine max and petunia hybrida and the monocot species of triticum monococcum, pennisetum purpureum, panicum maximum, saccharum officinarum, and a double cross, trispecific hybrid between pennisetum purpureum, p. americanum, and ...198724248756
efficacy of insect growth regulators and diamide insecticides for control of stem borers (lepidoptera: crambidae) in sugarcane.field experiments assessed control of the stem borers, diatraea saccharalis (f.) and eoreuma loftini (dyar), in sugarcane (saccharum spp.) with selected insect growth regulators and diamide insecticides. tebufenozide, novaluron, chlorantraniliprole, and flubendiamide were evaluated for d. saccharalis control in four field experiments in louisiana between 2009 and 2014. aerial application of the same insecticides was evaluated for control of e. loftini in commercial sugarcane fields in southern t ...201728334153
host-plant associated genetic divergence of two diatraea spp. (lepidoptera: crambidae) stemborers on novel crop plants.diatraea lineolata and diatraea saccharalis (lepidoptera: crambidae) are moths with stemboring larvae that feed and develop on economically important grasses. this study investigated whether these moths have diverged from a native host plant, corn, onto introduced crop plants including sorghum, sugarcane, and rice. diatraea larvae were collected from these four host plants throughout the year in el salvador and were reared on artificial diet until moths or parasitoids emerged. adult moths were s ...201628031813
sugarcane serine peptidase inhibitors, serine peptidases, and clp protease system subunits associated with sugarcane borer (diatraea saccharalis) herbivory and wounding.sugarcane's (saccharum spp.) response to diatraea saccharalis (f.) (lepidoptera: (crambidae) herbivory was investigated using a macroarray spotted with 248 sugarcane expressed sequence tags (ests) encoding serine peptidase inhibitors, serine peptidases. and clp protease system subunits. our results showed that after nine hours of herbivory, 13 sugarcane genes were upregulated and nine were downregulated. among the upregulated genes, nine were similar to serine peptidase inhibitors and four were ...201627598134
restriction site associated dna (rad) for de novo sequencing and marker discovery in sugarcane borer, diatraea saccharalis fab. (lepidoptera: crambidae).we present the development of a genomic library using radseq (restriction site associated dna sequencing) protocol for marker discovery that can be applied on evolutionary studies of the sugarcane borer diatraea saccharalis, an important south american insect pest. a radtag protocol combined with illumina paired-end sequencing allowed de novo discovery of 12 811 snps and a high-quality assembly of 122.8m paired-end reads from six individuals, representing 40 gb of sequencing data. approximately ...201627571734
transgenic sugarcane with a cry1ac gene exhibited better phenotypic traits and enhanced resistance against sugarcane borer.we developed sugarcane plants with improved resistance to the sugarcane borer, diatraea saccharalis (f). an expression vector pgcry1ac0229, harboring the cry1ac gene and the selectable marker gene, bar, was constructed. this construct was introduced into the sugarcane cultivar fn15 by particle bombardment. transformed plantlets were identified after selection with phosphinothricin (ppt) and basta. plantlets were then screened by pcr based on the presence of cry1ac and 14 cry1ac positive plantlet ...201627093437
resistance risk assessment of spodoptera frugiperda (lepidoptera: noctuidae) and diatraea saccharalis (lepidoptera: crambidae) to vip3aa20 insecticidal protein expressed in corn.transgenic agrisure viptera 3 corn that expresses cry1ab, vip3aa20, and epsps proteins and agrisure viptera expressing vip3aa20 are used for control of spodoptera frugiperda (j.e. smith) and diatraea saccharalis (f.) in brazil. to support a resistance management program, resistance risk assessment studies were conducted to characterize the dose expression of vip3aa20 protein and level of control against these species. the vip3aa20 expression in agrisure viptera 3 and agrisure viptera decreased f ...201526470366
genetic diversity and structure of brazilian populations of diatraea saccharalis (lepidoptera: crambidae): implications for pest management.the sugarcane borer, diatraea saccharalis (f.), is the main pest of sugarcane in brazil. genetic variability and gene flow among 13 brazilian populations of the species were evaluated based on mitochondrial dna sequences to estimate the exchange of genetic information within and among populations. we found high genetic structure among sampled localities (φst=0.50923), and pairwise genetic distances were significantly correlated to geographic distances. demographic analysis and genealogical netwo ...201526470135
testis morphology and dichotomic spermatogenesis in the sugarcane borer diatraea saccharalis (f.) (lepidoptera: crambidae).in the present study, we describe the testis morphology and spermatogenesis of the sugarcane borer, one of the most destructive pests of sugarcane, using light, transmission, and scanning electron microscopies. diatraea saccharalis (f.) larvae have paired, kidney-shaped testes that are limited externally and divided into four follicles by tunica cells. the adults have two fused whitish and spherical testes that are divided into eight follicles and are composed of spermatogonia, spermatocyte, spe ...201526245268
geographic population structure of the sugarcane borer, diatraea saccharalis (f.) (lepidoptera: crambidae), in the southern united states.the sugarcane borer moth, diatraea saccharalis, is widespread throughout the western hemisphere, and is considered an introduced species in the southern united states. although this moth has a wide distribution and is a pest of many crop plants including sugarcane, corn, sorghum and rice, it is considered one species. the objective was to investigate whether more than one introduction of d. saccharalis had occurred in the southern united states and whether any cryptic species were present. we fi ...201425337705
characterization and transcriptional analyses of cdnas encoding three trypsin- and chymotrypsin-like proteinases in cry1ab-susceptible and cry1ab-resistant strains of sugarcane borer, diatraea saccharalis.diatraea saccharalis is a major corn borer pest. midgut serine proteinases are essential for insect growth and development. alteration of midgut proteinases is responsible for bt resistance development in some species. to clone midgut trypsin and chymotrypsin cdnas and to test if the cry1ab resistance in d. saccharalis is associated with changes in midgut proteinases, total midgut tryptic and chymotryptic activities, cdna sequences, and gene expressions of three trypsin and three chymotrypsin ge ...201323955944
effect of silicon soil amendment on performance of sugarcane borer, diatraea saccharalis (lepidoptera: crambidae) on rice.the sugarcane borer, diatraea saccharalis (f.), is a pest of graminaceous crops in the southern usa, including sugarcane, maize, and rice. this study was conducted to investigate the effect of silicon (si) soil amendments on performance of sugarcane borer, d. saccharalis, on two rice cultivars, cocodrie and xl723. there was a significant increase in the si content of rice plants supplemented with calcium silicate as compared to non-treated plants. soil si amendment led to lower relative growth r ...201323830057
development and characterization of microsatellite loci for genetic studies of the sugarcane borer, diatraea saccharalis (lepidoptera: crambidae).we present polymorphic microsatellite markers isolated for genetic studies of the sugarcane borer, diatraea saccharalis (fabricius). we isolated 16 microsatellite loci through an enriched genomic library protocol. after characterization, 12 markers showed polymorphic information expressed in the observed number of alleles (ranging from 2 to 7; 5 on average) and in the polymorphism information content (ranging from 0.292 to 0.771; 0.535 on average). these markers can be used in further studies to ...201323765969
susceptibility of cry1ab maize-resistant and -susceptible strains of sugarcane borer (lepidoptera: crambidae) to four individual cry proteins.sugarcane borer, diatraea saccharalis (f.), is a major target of bt maize in south america and many areas of the us mid-south region. six laboratory strains of d. saccharalis were established from six single-pair f(2) families possessing major resistance alleles to cry1ab maize hybrids. susceptibility of the six strains was evaluated on diet treated with each of four purified trypsin-activated bt proteins, cry1ab, cry1aa, cry1ac and cry1f. bt susceptibility of the six strains was compared with t ...201323270874
oviposition behavior of diatraea saccharalis (lepidoptera: crambidae) on different rice cultivars in louisiana.the sugarcane borer, diatraea saccharalis (f.), is a pest of a variety of graminaceous crops in the southern united states, including sugarcane, maize, and rice in louisiana. this study examined several aspects of d. saccharalis oviposition behavior on rice (oryza sativa). the vertical distribution of egg masses on four phenological stages of rice in the field showed that d. saccharalis prefers to oviposit on the uppermost portions of rice plants, regardless of plant stage. in greenhouse choice ...201222732615
the nearctic-caribbean species leptotrachelus dorsalis (fabricius, 1801): larval descriptions with a diagnosis of immature ctenodactylini and natural history notes on the genus and tribe (coleoptera, carabidae).adults and larvae of leptotrachelus dorsalis (fabricius), the sugarcane savior beetle, live in association with grasses, the larvae in the appressed leaf axils. both adult and larval leptotrachelus dorsalis eat larvae of the sugarcane borer, diatraea saccharalis (fabricius), and perhaps other insects living in the confines of the leaf sheaths of that and other grass-like species. the geographic range of leptotrachelus dorsalis extends from kansas in the west to the atlantic seaboard, north as fa ...201222679382
sugarwin: a sugarcane insect-induced gene with antipathogenic activity.in sugarcane fields, colonization of the stalk by opportunistic fungi usually occurs after the caterpillar diatraea saccharalis attacks the sugarcane plant. plants respond to insect attack by inducing and accumulating a large set of defense proteins. two homologues of a barley wound-inducible protein (barwin), sugarcane wound-inducible proteins sugarwin1 and sugarwin2, have been identified in sugarcane by an in silico analysis. antifungal properties have been described for a number of barwin hom ...201222250584
microarray analysis of global gene regulation in the cry1ab-resistant and cry1ab-susceptible strains of diatraea saccharalis.extensive adoption of transgenic bt corn in recent years for stalk borer control has increased risk of resistance evolution in the target pest populations. a bt-resistant strain of the sugarcane borer, diatraea saccharalis, was approximately 100-fold more tolerant to cry1ab toxin than the susceptible counterpart. to gain a better understanding of the molecular mechanisms of bt resistance, the cry1ab-susceptible (cry1ab-ss) and cry1ab-resistant (cry1ab-rr) strains of d. saccharalis were subjected ...201222228544
life table studies of elasmopalpus lignosellus (lepidoptera: pyralidae) on sugarcane.the lesser cornstalk borer, elasmopalpus lignosellus (zeller) (lepidoptera: pyralidae) is an important pest of sugarcane (a complex hybrid of saccharum spp.) in southern florida. reproductive and life table parameters for e. lignosellus were examined at nine constant temperatures from 13 to 36 °c with sugarcane as the larval food source. the pre- and postoviposition periods decreased with increasing temperatures and reached their minimums at 33 and 36 °c, respectively. the oviposition period was ...201022182570
geographic variation of sex pheromone and mitochondrial dna in diatraea saccharalis (fab., 1794) (lepidoptera: crambidae).(9z,11e)-hexadecadienal and (z11)-hexadecenal, the main sex pheromone components of the sugarcane borer, diatraea saccharalis, were identified and quantified from four brazilian and one colombian populations using gc-ead, gc-ms and gc analyses. three different ratios were observed, 9:1, 6:1, and 3:1. the pheromone concentration for the major component, (9z,11e)-hexadecadienal, varied from 6.8 ng/gland to 21.9 ng/gland and from 1.7 ng/gland to 6.5 to the minor component, (z11)-hexadecenal. the 25 ...201020558173
rice tillering and yield as affected by artificial and sugarcane borer (lepidoptera: crambidae) culm injury.a 2-yr study was conducted to evaluate the tillering and yield response of rice, oryza sativa l., whose culms were injured artificially or by larval sugarcane borers, diatraea saccharalis (f.). artificially injured plants produced approximately 0.49 more tillers than uninjured plants, similar to what has previously been reported for larval injured plants. in contrast, artificial injury did not affect yield per tiller, whereas larval injury did. the proximity of larval injury to the panicle had a ...201020388284
impact of hurricane rita storm surge on sugarcane borer (lepidoptera: crambidae) management in louisiana.twelve thousand to 16,000 ha of louisiana sugarcane (saccharum spp.) fields were flooded by saltwater from the hurricane rita storm surge in september 2005. a four treatment, 12-replication study comparing storm surge flooded and nonflooded plant and ratoon sugarcane fields was conducted during summer 2006 to assess sugarcane borer, diatraea saccharalis (f.), pest severity, pest control actions, and soil-associated arthropod abundance and diversity. even with a significant 2.4-fold increase in t ...200919610419
selection and life history traits of tebufenozide-resistant sugarcane borer (lepidoptera: crambidae).varying susceptibility to tebufenozide was recorded in the sugarcane borer, diatraea saccharalis (f.) (lepidoptera: crambidae), collected from louisiana sugarcane locations with different selection pressures. results from diet incorporation bioassays with tebufenozide indicated significant increases in lc50 (3.78-fold) and lc90 (7-fold) values for a colony from duson (du), an area with higher selection pressure, compared with a colony from alexandria (alex), an area with no selection pressure. d ...200819133473
morphological regional differences of epithelial cells along the midgut in diatraea saccharalis fabricius (lepidoptera: crambidae) larvae.the sugarcane borer, diatraea saccharalis fabricius, is a pest to sugarcane and many other crops. this work aims to characterize morphological variability in the epithelial cells (columnar, goblet and regenerative) along the midgut of d. saccharalis larvae. fragments of the midgut (anterior, middle and posterior regions) were fixed and processed by light and scanning electron microscopy. there are both cytochemical and ultrastructural differences in the morphology of the epithelial cells, depend ...201618813743
isobutyl amides--potent compounds for controlling diatraea saccharalis.a dichloromethane-methanol extract of the seeds of piper tuberculatum jacq. (piperaceae) and two isobutyl amides, 4,5-dihydropiperlonguminine (1) and pellitorine (2), which were isolated by chromatographic methods, were assayed for their lethality against the sugarcane borer diatraea saccharalis f. (lepidoptera: pyralidae).200918785219
tolerance and compensatory response of rice to sugarcane borer (lepidoptera: crambidae) injury.a 3-yr field experiment was conducted to evaluate the tolerance and compensatory response of rice (oryza sativa l.) to injury caused by sugarcane borer, diatraea saccharalis (f.), as affected by cultivar (cocodrie, francis, and jefferson), stage of crop growth during which the injury occurred (third tiller stage, panicle differentiation stage, and heading stage), and sugarcane borer density. the proportion of rice tillers with sugarcane borer injury (leaf and leaf sheath injury and/or stem injur ...200818559187
ultrastructure of the excretory duct in the silk gland of the sugarcane borer diatraea saccharalis (lepidoptera: pyralidae).the excretory duct in the silk gland of the sugarcane borer diatraea saccharalis consists of two morphologically distinct regions, recognized by scanning and transmission electron microscopy. the thin posterior region, adjacent to the glandular region, presents a regular surface. secretory vesicles containing either electron-dense or fibrillar cuticular-like materials are observed in their apical cytoplasm; the same cuticular materials were detected as extracellular deposits among the microvilli ...200218088967
Displaying items 1401 - 1500 of 2013