Publications
| Title | Abstract | Year(sorted ascending) Filter | PMID Filter |
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| pollen spectrum of honey of "uruçu" bee (melipona scutellaris latreille, 1811). | in spite of the importance of the "uruçu" bee as honey producer of excellent quality, as well, potential pollinator both in agricultural and natural ecosystems, mainly in north-eastern brazil, just some information is found in literature about sources that such bees utilize to collect nectar and pollen. the identification of the plants visited by melipona scutellaris was accomplished with base on the analysis of pollen types found in the honey samples collected every two months, from march 1997 ... | 2001 | 11340463 |
| effect of sulphur inoculated with thiobacillus on soil salinity and growth of tropical tree legumes. | a greenhouse experiment was carried out with the objective of evaluating the effects of the elementary sulphur inoculated with thiobacillus, compared with gypsum, in the amendment of a alluvial sodic saline soil from the brazilian semiarid region, irrigated with saline water and grown with the tropical legumes leucena and mimosa. the treatments consisted of levels of sulphur (0; 300 and 600 kg/ha) and gypsum (1,200 and 2,400 kg/ha), irrigation using different waters containing the salts nahco3, ... | 2002 | 11710345 |
| effect of mimosa pudica root powder on oestrous cycle and ovulation in cycling female albino rat, rattus norvegicus. | mimosa pudica root powder (150 mg/kg body weight) when administered intragastrically, altered the oestrous cycle pattern in female rattus norvegicus. nucleated and cornified cells were absent in all rats. the smear was characterized by leucocytes only, as in dioestrus, which persisted for 2 weeks. there was a significant reduction in the number of normal ova in rats treated with the root powder compared with the control rats, and a significant increase in the number of degenerated ova. | 2002 | 11933127 |
| hyperglycemic effect of leaves of mimosa pudica linn. | ethanolic extract of mimosa pudica leaves given by oral route to mice at a dose of 250 mg/kg showed a significant hyperglycemic effect. | 2002 | 12234583 |
| profiling and screening analysis of 27 aromatic amino acids by capillary electrophoresis in dual modes. | an efficient capillary electrophoretic (ce) profiling and screening system based on dual modes of capillary zone electrophoresis (cze) and micellar electrokinetic capillary chromatography (mekc) was developed for the simultaneous determination of 23 nonprotein amino acids (npaas) and 4 protein amino acids with aromatic moiety. it involves separation by an uncoated fused-silica capillary under phosphoric acid buffer in cze mode and by another uncoated fused-silica capillary under neutral sodium d ... | 2002 | 11981855 |
| the potential of thai indigenous plant species for the phytoremediation of arsenic contaminated land. | to assess the potential of the native plant species for phytoremediation, plant and soil samples were collected from two areas in thailand that have histories of arsenic pollution from mine tailings. the areas were the ron phibun district (nakorn si thammarat province) and bannang sata district (yala province), and samples were taken in 1998 and 1999 and analysed for total arsenic by atomic absorption spectrophotometry. arsenic concentrations in soil ranged from 21 to 14,000 microg g(-1) in ron ... | 2002 | 12009144 |
| zoosporicidal activity of polyflavonoid tannin identified in lannea coromandelica stem bark against phytopathogenic oomycete aphanomyces cochlioides. | in a survey of nonhost plant secondary metabolites regulating motility and viability of zoospores of the aphanomyces cochlioides, we found that stem bark extracts of lannea coromandelica remarkably inhibited motility of zoospores followed by lysis. bioassay-guided fractionation and chemical characterization of lannea extracts by maldi-tof-ms revealed that the active constituents were angular type polyflavonoid tannins. commercial polyflavonoid tannins, quebracho and mimosa, also showed identical ... | 2002 | 12405764 |
| effects of substrates composed of biosolids on the production of eucalyptus viminalis, schinus terebinthifolius and mimosa scabrella seedlings and on the nutritional status of schinus terebinthifolius seedlings. | six substrates made up with heated and composted anaerobic biosolid were tested for the production of eucalyptus viminalis, schinus terebinthifolius and mimosa scabrella forest seedlings in a nursery in southern brazil. the produced seedlings were statistically evaluated in relation to height, stem diameter, height/stem diameter ratio, aerial and root dry biomass, survival, and also for nutritional status on s. terebinthifolius seedlings. as a function of their high ph, heated biosolids turned o ... | 2002 | 12479477 |
| enantioseparation of chiral aromatic amino acids by capillary electrophoresis in neutral and charged cyclodextrin selector modes. | simultaneous enantioseparations of 15 racemic aromatic amino acids and l-mimosine for their chiral discrimination were achieved by neutral selector-modified capillary electrophoresis (ce) and by charged selector-modified ce. among the diverse cyclodextrins (cds) examined, hydroxypropyl (hp)-alpha-cd as the neutral selector and highly sulfated (hs)-gamma-cd as the charged selector provided best chiral environments of different enantioselectivities. fairly good enantiomeric resolutions were achiev ... | 2002 | 12481269 |
| polliniferous plants and foraging strategies of apis mellifera (hymenoptera: apidae) in the yucatán peninsula, mexico. | a study of the most important polliniferous plants for european and africanized honeybees (apis mellifera l.) was made in quintana roo state. comparisons were made between the plants visited by both bee types in order to determine whether there were qualitative or quantitative differences in their choice of plant species. also some foraging strategies of the honeybees were analysed. pollen from pollen load samples was acetolysed and mounted on slides. subsequently the pollen grains were identifi ... | 2002 | 12947587 |
| the comparative effect of novel pelargonium essential oils and their corresponding hydrosols as antimicrobial agents in a model food system. | essential oils and their corresponding hydrosols, obtained after distillation of various scented pelargonium (geraniaceae) leaves were assessed for their antimicrobial activity in a model food system. both the essential oils and hydrosols were used at 1000 ppm in broccoli soup, previously inoculated with enterobacter aerogenes (at 10(5) cfu g(-1)) and staphylococcus aureus (at 10(4) cfu g(-1)). the results showed a complete inhibition of s. aureus in the broccoli soup by the essential oils of 's ... | 2003 | 12557249 |
| a multiyear estimate of the effective pollen donor pool for albizia julibrissin. | studies of pollen movement in plant populations are often limited to a single reproductive event, despite concerns about the adequacy of single-year measures for perennial organisms. in this study, we estimate the effective number of pollen donors per tree from a multiyear study of albizia julibrissin durazz (mimosa, fabaceae), an outcrossing, insect-pollinated tree. we determined 40 seedling genotypes for each of 15 seed trees during 4 successive years. a molecular analysis of variance of the p ... | 2003 | 12634826 |
| mycorrhizal perennials of the "matorral xerófilo" and the "selva baja caducifolia" communities in the semiarid tehuacán-cuicatlán valley, mexico. | we investigated the mycorrhizal status of perennial xeric plant species occurring in the "matorral xerófilo" (arid tropical scrub) and the ecotone of the "selva baja caducifolia" (tropical deciduous forest) communities in the semiarid valley of tehuacán-cuicatlán, south-central mexico. the perennial species examined are dominant/codominant elements within the "matorral xerófilo" and the "selva baja caducifolia", both endangered communities in the biosphere reserve tehuacán-cuicatlán valley. of t ... | 2003 | 12682829 |
| [narcissistic physicians. tyrant and mimosa: demigod in white]. | 2003 | 12688016 | |
| endemic mimosa species can serve as mycorrhizal "resource islands" within semiarid communities of the tehuacán-cuicatlán valley, mexico. | this paper explores if mimosa species (fabaceae-mimosoideae) can serve as arbuscular mycorrhizal (am) and nutrient "resource islands" in six plant communities in the semiarid valley of tehuacán-cuicatlán, mexico. spatial heterogeneity related to the occurrence of mimosa species results in temporal differences in am-fungal spore numbers and soil nutrients. a higher number of am-fungal spores were found in the soil below the canopies of six endemic mimosa species than in the soil from non-vegetate ... | 2003 | 12836080 |
| specific perception of ergosterol by plant cells. | ergosterol (a fungal membrane component) induced modification of proton fluxes and membrane hyperpolarization in motor cells of mimosa pudica. these reactions appear specific since they were not induced by the other sterols tested. a specific desensitization was observed, since cells did not react to a second ergosterol application. exposed at first to other sterols, cells remained reactive to ergosterol. comparatively, chitosan (a fungal wall component with known elicitor properties) triggered ... | 2003 | 12876888 |
| in vitro and in vivo antiviral properties of sulfated galactomannans against yellow fever virus (beh111 strain) and dengue 1 virus (hawaii strain). | two galactomannans, one extracted from seeds of mimosa scabrella, having a mannose to galactose ratio of 1.1, and another with a 1.4 ratio from seeds of leucaena leucocephala, were sulfated. the products from m. scabrella (brs) and l. leucocephala (lls) had a degree of sulfation of 0.62 and 0.50, and an average molecular weight of 620x10(3) and 574x10(3) gmol(-1), respectively. their activities against yellow fever virus (yfv; beh111 strain) and dengue 1 virus (den-1; hawaii strain) were evaluat ... | 2003 | 14638396 |
| legume symbiotic nitrogen fixation by beta-proteobacteria is widespread in nature. | following the initial discovery of two legume-nodulating burkholderia strains (l. moulin, a. munive, b. dreyfus, and c. boivin-masson, nature 411:948-950, 2001), we identified as nitrogen-fixing legume symbionts at least 50 different strains of burkholderia caribensis and ralstonia taiwanensis, all belonging to the beta-subclass of proteobacteria, thus extending the phylogenetic diversity of the rhizobia. r. taiwanensis was found to represent 93% of the mimosa isolates in taiwan, indicating that ... | 2003 | 14645288 |
| nodulation of mimosa spp. by the beta-proteobacterium ralstonia taiwanensis. | several beta-proteobacteria have been isolated from legume root nodules and some of these are thought to be capable of nodulating and fixing n2. however, in no case has there been detailed studies confirming that they are the active symbionts. here, ralstonia taiwanensis lmg19424, which was originally isolated from mimosa pudica nodules, was transformed to carry the green fluorescent protein (gfp) reporter gene before being used to inoculate axenically-grown seedlings of m. pudica and m. diplotr ... | 2003 | 14651338 |
| the plasma membrane aquaporin ntaqp1 is a key component of the leaf unfolding mechanism in tobacco. | epinastic leaf movement of tobacco is based on differential growth of the upper and lower leaf surface and is distinct from the motor organ-driven mechanism of nyctinastic leaf movement of, for example, mimosa species. the epinastic leaf movement of tobacco is observed not only under diurnal light regimes but also in continuous light, indicating a control by light and the circadian clock. as the transport of water across membranes by aquaporins is an important component of rapid plant cell elong ... | 2004 | 14690500 |
| [influence of anthropic habits in the dispersion of triatoma pseudomaculata corrêa & espínola, 1964 through mimosa tenuiflora (willdenow) (mimosaceae) in the state of ceará, brazil]. | triatoma pseudomaculata was captured in the phloem of the black acacia bush (mimosa tenuiflora) in seven municipalities in the state of ceará, brazil. this bush is widespread in the caatinga (scrub forest) and is used extensively by the rural population for kindling. peridomiciliary presence of triatomines in the cariri region may be associated with the use of infested m. tenuiflora wood by the population, thus facilitating the triatomines' mobilization and dispersion. | 2004 | 15029337 |
| extraction of antioxidant compounds from energy crops. | energy crops offer enormous opportunities for increasing the sustain ability of agriculture and energy production in the united states. nevertheless, opportunities for sustaining biomass energy production may well hinge on producing energy and extracting high-value products from the same crop. seven potential energy crops (mimosa, sericea, kudzu, arunzo, switchgrass, velvet bean, and castor) were extracted and assayed for the presence of potentially high-value antioxidant compounds. of these cro ... | 2004 | 15054278 |
| isolation of fonsecaea pedrosoi from thorns of mimosa pudica, a probable natural source of chromoblastomycosis. | we report the isolation of fonsecaea pedrosoi from thorns of the plant mimosa pudica l. at the place of infection identified by one of our patients. clinical diagnosis of chromoblastomycosis was established by direct microscopic examination and cultures from the patient's lesion. the same species was isolated from the patient and from the plant. scanning electron microscopy of the surface of the thorns showed the characteristic conidial arrangement of f. pedrosoi. these data indicate that m. pud ... | 2004 | 15057332 |
| evaluation of xanthan and highly substituted galactomannan from m. scabrella as a sustained release matrix. | a highly substituted galactomannan (g) from mimosa scabrella bentham (man:gal 1.1:1), isolated from the seeds of a brazilian leguminous tree and xanthan (x), an exopolysaccharide secreted by xanthomonas campestris (keltrol), were evaluated as a hydrophilic matrix system (xg) for controlled release (cr) of diclofenac sodium (ds) in tablets and capsules. the performance of xg (2:1) matrices containing 50 mg (a) or 100 mg (b) of ds was compared with a commercial cr product of ds. the drug release s ... | 2004 | 15129986 |
| anticonvulsant activity of mimosa pudica decoction. | the decoction of mimosa pudica leaves given intraperitoneally at dose of 1000-4000 mg/kg protected mice against pentylentetrazol and strychnine-induced seizures. m. pudica had no effect against picrotoxin-induced seizures it also antagonized n-methyl-d-aspartate- induced turning behavior. these properties could explain its use in african traditional medicine. | 2004 | 15158987 |
| hyaluronidase and protease activities from indian snake venoms: neutralization by mimosa pudica root extract. | the aqueous root extract of mimosa pudica dose dependently inhibited the hyaluronidase and protease activities of indian snakes (naja naja, vipera russelii and echis carinatus) venom. | 2004 | 15159000 |
| biochemical and immunohistochemical characterization of mimosa annexin. | to characterize the biochemical properties of plant annexin, we isolated annexin from mimosa pudica l. and analyzed the biochemical properties conserved between mimosa annexin and animal annexins, e.g. the ability to bind phospholipid and f-actin in the presence of calcium. we show that mimosa annexin is distributed in a wide variety of tissues. immunoblot analysis also revealed that the amount of annexin is developmentally regulated. to identify novel functions of mimosa annexin, we examined th ... | 2004 | 15168121 |
| hormetic versus toxic effects of vegetable tannin in a multitest study. | tannin from mimosa trees (acacia sp.) utilized in traditional leather tanning was tested for toxicity in sea urchin (sphaerechinus granularis and paracentrotus lividus) embryos and sperm, marine, and freshwater algae (selenastrum capricornutum and dunaliella tertiolecta), and daphnia magna. based on a two-step tanning procedure used in traditional tanneries, two mimosa tannin preparations, i.e., fresh tannin (ft) and used tannin (ut), were tested as suspensions. the early results in s. granulari ... | 2004 | 15195805 |
| phylogeny based on 16s rdna and nifh sequences of ralstonia taiwanensis strains isolated from nitrogen-fixing nodules of mimosa pudica, in india. | bacterial symbionts present in the indeterminate-type nitrogen (n)-fixing nodules of mimosa pudica grown in north and south india showed maximum similarity to ralstonia taiwanensis on the basis of carbon-source utilization patterns and 16s rdna sequence. isolates from the nodules of m. pudica from north india and south india showed identical ardra (amplified ribosomal dna restriction analysis) patterns with sau3ai and rsai, but alui revealed dimorphy between the north indian and south indian iso ... | 2004 | 15213739 |
| tenuiflorins a-c: new 2-phenoxychromones from the leaves of mimosa tenuiflora. | five 2-phenoxychromones, the new tenuiflorin a [5,7-dihydroxy-2-(3-hydroxy-4-methoxyphenoxy)-6-methoxychromone], tenuiflorin b [5,7-dihydroxy-2-(4-hydroxy-3-methoxyphenoxy)-6-methoxychromone] and tenuiflorin c [5,7-dihydroxy-2-(3-hydroxy-4-methoxyphenoxy)chromone], along with the known 6-demethoxycapillarisin and 6-demethoxy-4'- o-methylcapillarisin were isolated from leaves of mimosa tenuiflora. structures of these compounds were established by analysis of their spectroscopic data. a single-cry ... | 2004 | 15229805 |
| the multi-protein family of arabidopsis sulphotransferases and their relatives in other plant species. | all members of the sulphotransferase (sot, ec 2.8.2.-) protein family use 3'-phosphoadenosine 5'-phosphosulphate (paps) as the sulphuryl donor and transfer the sulphonate group to an appropriate hydroxyl group of several classes of substrates. these enzymes have highly conserved domains and can be found in eubacteria and eukaryotes. in mammals, sulphate conjugation catalysed by sots constitutes an important reaction in the transformation of xenobiotics, and in the modulation of the biological ac ... | 2004 | 15234990 |
| identification of fast-growing rhizobia nodulating tropical legumes from puerto rico as rhizobium gallicum and rhizobium tropici. | fifteen isolates from several nodulated tropical legumes from puerto rico (usa) were characterised by their phenotypic, molecular and symbiotic features. the identification of isolates was based on a polyphasic approach, including phenotypic characteristics, 16s rrna sequencing, low molecular weight (lmw) rna profiles, two primers-rapd patterns, and restriction patterns from 16s rdna molecules. despite of the variety of hosts included in this study the 15 isolates were separated into only two gr ... | 2004 | 15368853 |
| characterization of phenol and trichloroethene degradation by the rhizobium ralstonia taiwanensis. | ralstonia taiwanensis is a root nodule bacterium originally isolated from mimosa sp. in southern taiwan. some strains of r. taiwanensis demonstrated the ability to grow on medium containing phenol as the sole carbon source, especially strain tj86, which was able to survive and grow at phenol concentrations of up to 900 mg/l. the dependence of the phenol degradation rate on the phenol concentration can be described by haldane's model with a low ks (the apparent half-saturation constant) of 5.46 m ... | 2004 | 15380556 |
| [when the flower battles make tears...]. | presentation of a case of workplace induced asthma in a person who prepared bouquets of mimosa for the carnival of nice and bouquets destined for export. | 2004 | 15633374 |
| isolation and anti-fungal activities of 2-hydroxymethyl-chroman-4-one produced by burkholderia sp. mssp. | in the course of screening for biological active compounds from microbial origins, various strains were isolated from roots of mimosa pudica using standard dilution agar plate method. one isolate was selected for further studies of bacterial anti-fungal properties. it was designated mssp and identified as burkholderia sp. by many biological characteristics such as carbohydrate utilization, biochemical and physiological test and 16s rdna sequence homology search. to investigate antagonistic princ ... | 2004 | 15712667 |
| use and management of mimosa species in the tehuacán-cuicatlán valley, a tropical semi-arid region in mexico (fabaceae-mimosoideae). | we report on the use of 15 mimosa species within the tehucán-cuicatlán valley, south-central mexico. seven of these species are endemic to mexico, and four species and one variety are endemic to the valley. we reviewed historical, ethnobotanical and floristic manuscripts, and conducted field studies. several herbaria were consulted, as well as the badeplam data base. field work in the valley has been done from 1994 to date. most of the mimosa species occur in the arid tropical scrub and the trop ... | 2004 | 17354393 |
| [effect of the spatial and seasonal soil heterogeneity over arbuscular mycorrhizal fungal spore abundance in the semi-arid valley of tehuacán-cuicatlán, mexico]. | recent studies have shown that some species of mimosa (leguminosae-mimosoideae) create resource islands (ri), rich in soil organic matter and nutrients, as well as in arbuscular mycorrhyzal fungal (amf) spores, in the semi-arid valley of tehuacán-cuicatlán. the relevance of this fact is that arid and semi-arid regions are characterized by low fertility soils and scarce precipitation, limiting plant species growth and development; this explains why the presence of am fungi may be advantageous for ... | 2005 | 17354445 |
| from semi-conductors to the rhythms of sensitive plants: the research of j.c. bose. | j.c. bose (1858-1937) was one of the world's first biophysicists. he was the first person to use a semi conducting crystal to detect radio waves, and the ingenious inventor of a portable apparatus for generating and detecting microwaves (approximately 1 cm to 5 mm radio waves, frequency 12-60 ghz), as well as inventing many instruments now routinely used in microwave technology. bose extended his specialist knowledge of the physics of electromagnetic radiation into insightful experiments on the ... | 2005 | 16359611 |
| xanthan and galactomannan (from m. scabrella) matrix tablets for oral controlled delivery of theophylline. | directly compressed theophylline tablets, containing commercial xanthan (x) (keltrol) and a highly hydrophilic galactomannan (g) from the seeds of mimosa scabrella (a brazilian leguminous tree called bracatinga) as release-controlling agents, were obtained. gums were used at 4, 8, 12.5 and 25% (w/w), either alone or in mixture (x:g 1:1). during galactomannan extraction process, the biopolymer was dried in a scale up, by vacuum oven (vo) or spray dryer (sd). the in vitro drug release was evaluate ... | 2005 | 15885450 |
| water channel activities of mimosa pudica plasma membrane intrinsic proteins are regulated by direct interaction and phosphorylation. | cdnas encoding aquaporins pip1;1, pip2;1, and tip1;1 were isolated from mimosa pudica (mp) cdna library. mppip1;1 exhibited no water channel activity; however, it facilitated the water channel activity of mppip2;1 in a phosphorylation-dependent manner. mutagenesis analysis revealed that ser-131 of mppip1;1 was phosphorylated by pka and that cooperative regulation of the water channel activity of mppip2;1 was regulated by phosphorylation of ser-131 of mppip1;1. immunoprecipitation analysis reveal ... | 2005 | 16061230 |
| proof that burkholderia strains form effective symbioses with legumes: a study of novel mimosa-nodulating strains from south america. | twenty mimosa-nodulating bacterial strains from brazil and venezuela, together with eight reference mimosa-nodulating rhizobial strains and two other beta-rhizobial strains, were examined by amplified rrna gene restriction analysis. they fell into 16 patterns and formed a single cluster together with the known beta-rhizobia, burkholderia caribensis, burkholderia phymatum, and burkholderia tuberum. the 16s rrna gene sequences of 15 of the 20 strains were determined, and all were shown to belong t ... | 2005 | 16269788 |
| beta-rhizobia from mimosa pigra, a newly discovered invasive plant in taiwan. | a total of 191 rhizobial isolates from the root nodules of three geographically separate populations of the invasive plant mimosa pigra in taiwan were examined using amplified rdna restriction analysis, 16s rdna sequences, protein profiles and elisa. of these, 96% were identified as burkholderia and 4% as cupriavidus taiwanensis. the symbiosis-essential genes noda and nifh were present in two strains of burkholderia (pas44 and ptk47), and in one of c. taiwanensis (pas15). all three could nodulat ... | 2005 | 16313648 |
| isolation and characterization of yuremamine, a new phytoindole. | yuremamine was isolated and characterized from the stem bark of mimosa tenuiflora. this plant is still used by indigenous peoples in north-eastern brazil to make yurema, a psychoactive beverage that is used for medico-religious purpose ( jurema preta or vinho da jurema, in portuguese). the characterization of this novel compound by nmr and mass spectrometry introduces a new class of phytoindoles. | 2005 | 16320208 |
| a phyto-sociological analysis of the distribution of riverine tsetse flies in burkina faso. | in burkina faso, glossina palpalis gambiensis vanderplank and g. tachinoides westwood (diptera: glossinidae) are the main cyclic vectors of trypanosomiasis. the vegetation type along river banks is an important factor determining the distribution and abundance of these tsetse. the following work investigated the relation between the plant species present (including the disturbance level) and tsetse distribution and abundance, using three ecotypes, described by p.c. morel in 1978. these were the ... | 2005 | 16336302 |
| isolation and characterization of polymeric galloyl-ester-degrading bacteria from a tannery discharge place. | the culturable bacteria colonizing the rhizosphere of plants growing in the area of discharge of a tannery effluent were characterized. relative proportions of aerobic, denitrifying, and sulfate-reducing bacteria were determined in the rhizosphere of typha latifolia, canna indica, and phragmites australis. aerobic bacteria were observed to be the most abundant group in the rhizosphere, and plant type did not seem to influence the abundance of the bacterial types analyzed. to isolate bacteria abl ... | 2005 | 16341641 |
| variation in the accumulation levels of n,n-dimethyltryptamine in micropropagated trees and in in vitro cultures of mimosa tenuiflora. | the present article reports the accumulation of n,n-dimethyltryptamine and its metabolic precursors (tryptophan, tryptamine) in different organs of micropropagated mimosa tenuiflora trees (leaves, flowers and bark) subjected to seasonal variations (january and june), as well as in in vitro cultures (plantlets and calluses) of this plant species. the accumulation of all the tested compounds varied according to the organ, the month of collection, and age of the plant material. in all cases, the ne ... | 2005 | 15700647 |
| prevalence of burkholderia sp. nodule symbionts on four mimosoid legumes from barro colorado island, panama. | sequences of 16s rrna and partial 23s rrna genes and pcr assays with genotype-specific primers indicated that bacteria in the genus burkholderia were the predominant root nodule symbionts for four mimosoid legumes (mimosa pigra, m. casta, m. pudica, and abarema macradenia) on barro colorado island, panama. among 51 isolates from these and a fifth mimosoid host (pithecellobium hymenaeafolium), 44 were burkholderia strains while the rest were placed in rhizobium, mesorhizobium, or bradyrhizobium. ... | 2005 | 15709366 |
| coexistence of burkholderia, cupriavidus, and rhizobium sp. nodule bacteria on two mimosa spp. in costa rica. | rrna gene sequencing and pcr assays indicated that 215 isolates of root nodule bacteria from two mimosa species at three sites in costa rica belonged to the genera burkholderia, cupriavidus, and rhizobium. this is the first report of cupriavidus sp. nodule symbionts for mimosa populations within their native geographic range in the neotropics. burkholderia spp. predominated among samples from mimosa pigra (86% of isolates), while there was a more even distribution of cupriavidus, burkholderia, a ... | 2006 | 16461667 |
| change in the actin cytoskeleton during seismonastic movement of mimosa pudica. | the seismonastic movement of mimosa pudica is triggered by a sudden loss of turgor pressure. in the present study, we compared the cell cytoskeleton by immunofluorescence analysis before and after movement, and the effects of actin- and microtubule-targeted drugs were examined by injecting them into the cut pulvinus. we found that fragmentation of actin filaments and microtubules occurs during bending, although the actin cytoskeleton, but not the microtubules, was involved in regulation of the m ... | 2006 | 16489209 |
| early changes in membrane permeability, production of oxidative burst and modification of pal activity induced by ergosterol in cotyledons of mimosa pudica. | ergosterol (a fungal membrane component) was shown to induce transient influx of protons and membrane hyperpolarization in cotyledonary cells of mimosa pudica l. by contrast, chitosan (a fungal wall component with known elicitor properties) triggered membrane depolarization. in the processes induced by ergosterol, a specific desensitization was observed, since cells did not react to a second ergosterol application but did respond to a chitosan treatment. this comparative study correspondingly sh ... | 2006 | 16510520 |
| burkholderia mimosarum sp. nov., isolated from root nodules of mimosa spp. from taiwan and south america. | fourteen strains were isolated from nitrogen-fixing nodules on the roots of plants of the genus mimosa growing in taiwan, brazil and venezuela. on the basis of 16s rrna gene sequence similarities, all of the strains were previously shown to be closely related to each other and to belong to the genus burkholderia. a polyphasic approach, including dna-dna reassociation, whole-cell protein analysis, fatty acid methyl ester analysis and extensive biochemical characterization, was used to clarify the ... | 2006 | 16902019 |
| extraction of hyperoside and quercitrin from mimosa (albizia julibrissin) foliage. | mimosa, an excellent energy crop candidate because of its high growth yield, also contains, on a dry basis, 0.83% hyperoside and 0.90% quercitrin. hyperoside has been documented as having anti-inflammatory and diurectic properties, whereas quercitrin may play a role in intestinal repair following chronic mucosal injury. thus, mimosa might first be extracted for important antioxidant compounds and then used as a feedstock for energy production. this article presents results from studies aimed at ... | 2006 | 16915655 |
| wideband reflectance norms for caucasian and chinese young adults. | this study examined differences between the middle ears of two ethnic groups, caucasian and chinese young adults with normal hearing, using a new middle-ear measurement technique, wideband energy reflectance. the goal of this study was to determine whether the chinese group had different middle-ear transmission properties than the caucasian group. | 2006 | 17086086 |
| rapid hydropassive opening and subsequent active stomatal closure follow heat-induced electrical signals in mimosa pudica. | in mimosa pudica l., heat stimulation triggers leaflet folding in local, neighbouring and distant leaves. stomatal movements were observed microscopically during this folding reaction and electrical potentials, chlorophyll fluorescence, and leaf co(2)/h(2)o-gas exchange were measured simultaneously. upon heat stimulation of a neighbouring pinna, epidermal cells depolarized and the stomata began a rapid and pronounced transient opening response, leading to an approximately 2-fold increase of stom ... | 2006 | 16698819 |
| [chemical constituents of c-glycosylflavones from mimosa pudica]. | to study chemical constituents of mimosa pudica of hainan province. | 2006 | 16848320 |
| two diterpene rhamnosides, mimosasides b and c, from mimosa hostilis. | two new diterpene rhamnosides, mimosasides b and c (1, 2) were isolated together with mimosaside a (3), a known diterpene rhamnoside (4), four known flavones (5-8), five known flavanones (9-13), and four known chalcones (14-17) from the leaves and twigs of a brazilian medicinal plant, mimosa hostilis. | 2006 | 17139112 |
| [prevention of vascular ulcers and diabetic foot. non-randomized open clinical evaluation on the effectiveness of "mepentol leche"]. | vascular ulcers and diabetic foot ulcers present a health serious problem which affects a large number of patients, creating a major challenge for health professionals. hyper-oxygenated fatty acid dressings have proven to be effective thanks to their favorable action on the skin in three ways: increasing the microcirculation of the blood, promoting the renovation of the epidermic cells, and notably increasing cutaneous hydration. | 2006 | 17144630 |
| historical overview on plant neurobiology. | the review tracks the history of electrical long-distance signals from the first recordings of action potentials (aps) in sensitive dionea and mimosa plants at the end of the 19(th) century to their re-discovery in common plants in the 1950's, from the first intracellular recordings of aps in giant algal cells to the identification of the ionic mechanisms by voltage-clamp experiments. an important aspect is the comparison of plant and animal signals and the resulting theoretical implications tha ... | 2006 | 19521469 |
| mechanoreceptor cells on the tertiary pulvini of mimosa pudica l. | special red cells were found on the adaxial surface of tertiary pulvini of mimosa pudica and experiments performed to determine the origin and function of these cells. using anatomical (light, scanning electron and transmission electron microscopy) and electrophysiological techniques, we have demonstrated that these red cells are real mechanoreceptor cells. they can generate receptor potential following mechanical stimuli and they are in connection with excitable motor cells (through plasmodesma ... | 2007 | 19517007 |
| pollen analysis in honey samples from the two main producing regions in the brazilian northeast. | knowledge about the botanical source of honey is very important for the beekeeper while it indicates adequate and abundant supply sources of nectar and pollen for the bees, thus contributing toward improved yield. the present study means to identify the pollen types occurring in 58 samples of honey produced in two states of the northeastern region of brazil, piauí (38 samples) and ceará (20 samples), and to verify the potential of the honey plants during the months of february to august. the sam ... | 2007 | 17768530 |
| antihyperglycaemic effect of 'ilogen-excel', an ayurvedic herbal formulation in streptozotocin-induced diabetes mellitus. | 'ilogen-excel', an ayurvedic herbal formulation is composed of eight medicinal plants (curcuma longa, strychnos potatorum, salacia oblonga, tinospora cordifolia, vetivelia zizanioides, coscinium fenestratum, andrographis paniculata and mimosa pudica). the present study evaluates the antihyperglycemic effect of 'ilogen-excel' in streptozotocin induced diabetic rats. rats were rendered diabetic by streptozotocin (stz) (45 mg/kg body weight). oral administration of 'ilogen-excel' (50 mg/kg and 100 ... | 2007 | 17665851 |
| pharmacognostical studies of the plant drug mimosae tenuiflorae cortex. | the bark of the mimosa tenuiflora (willd.) poiret (leguminoseae) tree, known as tepescohuite in mexico, is commonly used in this country and in central america to elaborate different products for the treatment of skin burns and lesions. the cicatrizing properties of extracts obtained from this bark have been scientifically studied, attributing the main biological activity to its tannin and saponin content. studies include clinical trials of phytodrugs based on mimosae tenuiflora bark extracts fo ... | 2007 | 17709219 |
| mimosine mitigates oxidative stress in selenium deficient seedlings of vigna radiata--part i: restoration of mitochondrial function. | mimosine, a non-protein plant amino acid found in mimosa pudica and certain species of leucaena, was beneficial for the growth of seedlings of vigna radiata germinated under selenium-deficient stressed condition (-se stressed) despite the recognized toxicity of the allelochemical. exposure of mimosine at 0.1 mm (mim-0.1) promoted the growth of the seedlings and significantly enhanced mitochondrial functional efficiency. growth-related parameters including root and shoot lengths and dry weight we ... | 2007 | 17848734 |
| nodulation of cyclopia spp. (leguminosae, papilionoideae) by burkholderia tuberum. | species of the genus burkholderia, from the betaproteobacteria, have been isolated from legume nodules, but so far they have only been shown to form symbioses with species of mimosa, sub-family mimosoideae. this work investigates whether burkholderia tuberum strains stm678 (isolated from aspalathus carnosa) and dus833 (from aspalathus callosa) can nodulate species of the south african endemic papilionoid genera cyclopia (tribe podalyrieae) and aspalathus (crotalarieae) as well as the promiscuous ... | 2007 | 17881339 |
| mimosa tenuiflora as a cause of malformations in ruminants in the northeastern brazilian semiarid rangelands. | craniofacial anomalies, eye malformations, and permanent flexures of the forelimbs are common malformations seen in ruminants grazing semiarid rangelands of northeastern brazil. to investigate the cause of these malformations, we fed 2 suspected plants, mimosa tenuiflora or prosopis juliflora, to groups of 4 pregnant goats each. fresh green m. tenuiflora was collected daily and fed ad libitum to 4 goats in group 1 throughout pregnancy. this treatment group also received a supplemental feed conce ... | 2007 | 18039908 |
| effect of mimosa pudica root extract on vaginal estrous and serum hormones for screening of antifertility activity in albino mice. | several plants are traditionally used as birth control agents by the rural people in india. mimosa pudica is one of the folk medicinal plants commonly used as antifertility agent in some places in india. the present work was carried out to evaluate the claimed antifertility effect of the plant by carrying out pharmacological studies with the root extract of the plant. | 2007 | 18061708 |
| weed growth inhibitors from aspergillus fischeri tistr 3272. | chloroform and ethyl acetate extracts of aspergillus fischeri tistr 3272 showed good growth inhibitory activity on mimosa pigra and echinochloa crus-galli. bioassay-directed fractionation of the active extracts led to the isolation of five known compounds, (+)-terrein (1), (-)-6-hydroxymellein (2), two diketopiperazines (cyclo-(s-pro-s-leu) (3) and cyclo-(s-pro-s-val) (4)) and butyrolactone i (5). compounds 2-5 were reported for the first time in this fungus. their structural determinations were ... | 2007 | 18075891 |
| health care applications based on mobile phone centric smart sensor network. | this paper presents the mimosa architecture and development platform to create ambient intelligence applications. mimosa achieves this objective by developing a personal mobile-device centric architecture and open technology platform where microsystem technology is the key enabling technology for their realization due to its low-cost, low power consumption, and small size. this paper focuses the demonstration activities carried out in the field of health care. mimosa project is a european level ... | 2007 | 18003461 |
| influence of catclaw mimosa monancistra on the dissipation of soil pahs. | phytoremediation is a cost-effective biotechnology for decontamination of polycyclic aromatic hydrocarbons (pahs)-polluted soils. a greenhouse experiment was conducted to determine the growth of mimosa monancistra, a n2-fixing leguminous plants, and its capacity to remove phenanthrene, anthracene, and benzo(a)pyrene (bap)from soil. the pahs decreased shoot and root dry biomass of m. monancistra 2.7- and 3.9-fold, respectively, compared to uncontaminated soil and inhibited nodule formation. the r ... | 2007 | 18246717 |
| effects of the seed predator acanthoscelides schrankiae on viability of its host plant mimosa bimucronata. | seeds of mimosa bimucronata are heavily infested (pre-dispersal predation) by the bruchid beetle acanthoscelides schrankiae in brazil. in this study, firstly we set up experiments to assess seed germination under seven and six different light and temperature regimes, respectively, and then we evaluated the ability of seeds to germinate after predation. we tested the hypothesis that the non-predated seeds from infested fruits may respond differently when set for germination than those seeds of no ... | 2007 | 18456915 |
| burkholderia phymatum is a highly effective nitrogen-fixing symbiont of mimosa spp. and fixes nitrogen ex planta. | * the ability of burkholderia phymatum stm815 to effectively nodulate mimosa spp., and to fix nitrogen ex planta, was compared with that of the known mimosa symbiont cupriavidus taiwanensis lmg19424. * both strains were equally effective symbionts of m. pudica, but nodules formed by stm815 had greater nitrogenase activity. stm815 was shown to have a broader host range across the genus mimosa than lmg19424, nodulating 30 out of 31 species, 21 of these effectively. lmg19424 effectively nodulated o ... | 2007 | 17176403 |
| electrical signals and their physiological significance in plants. | electrical excitability and signalling, frequently associated with rapid responses to environmental stimuli, are well known in some algae and higher plants. the presence of electrical signals, such as action potentials (ap), in both animal and plant cells suggested that plant cells, too, make use of ion channels to transmit information over long distances. in the light of rapid progress in plant biology during the past decade, the assumption that electrical signals do not only trigger rapid leaf ... | 2007 | 17263772 |
| the pulvinus endodermal cells and their relation to leaf movement in legumes of the brazilian cerrado. | legume pulvini have a clearly delimited endodermis, whose variable content has been associated with the velocity and type of leaf movement: pulvini in leaves with fast nastic movement contain starch grains; pulvini in leaves with slow nastic movements have calcium oxalate crystals as well as starch grains in the endodermis. however, the studies carried out to date have involved few legume species. this study therefore purported to examine the consistency of this hypothesis in other legumes. thus ... | 2007 | 17301934 |
| radical scavenging, antioxidant and cytotoxic activity of brazilian caatinga plants. | extracts of 32 plants from the brazilian northeastern semi-arid region called caatinga were evaluated through dpph radical scavenging assay, beta-carotene bleaching, and brine shrimp lethality tests (bst). among the extracts studied byrsonima cf. gardneriana, mascagnia coriacea, cordia globosa, diodia apiculata and hypenia salzmannii showed the highest activities in dpph radical scavenging test. in the beta-carotene bleaching test the highest activities were observed for passiflora cincinnata, c ... | 2007 | 17331673 |
| direct electron imaging in electron microscopy with monolithic active pixel sensors. | a new imaging device for dynamic electron microscopy is in great demand. the detector should provide the experimenter with images having sufficient spatial resolution at high speed. immunity to radiation damage, accumulated during exposures, is critical. photographic film, a traditional medium, is not adequate for studies that require large volumes of data or rapid recording and charge coupled device (ccd) cameras have limited resolution, due to phosphor screen coupling. ccd chips are not suitab ... | 2007 | 17346890 |
| ethnomedicines used in trinidad and tobago for reproductive problems. | throughout history women have tried to control or enhance their fertility using herbal remedies, with various levels of societal support. caribbean folk medicine has been influenced by european folk medicine, either through the early spanish and french settlers or through the continuous immigration of spanish-speaking peoples from venezuela. some folk uses are ancient and were documented by galen and pliny the elder. | 2007 | 17362507 |
| effect of tannins on the in vitro growth of escherichia coli o157:h7 and in vivo growth of generic escherichia coli excreted from steers. | the effect of commercially available chestnut and mimosa tannins in vitro (experiment 1) or in vivo (experiment 2) on the growth or recovery of escherichia coli o157:h7 or generic fecal e. coli was evaluated. in experiment 1, the mean growth rate of e. coli o157:h7, determined via the measurement of optical density at 600 nm during anaerobic culture in tryptic soy broth at 37 degrees c, was reduced (p < 0.05) with as little as 400 microg of either tannin extract per ml of culture fluid. the addi ... | 2007 | 17388040 |
| burkholderia nodosa sp. nov., isolated from root nodules of the woody brazilian legumes mimosa bimucronata and mimosa scabrella. | three strains, br3437(t), br3461 and br3470, were isolated from nitrogen-fixing nodules on the roots of mimosa scabrella (br3437(t)) and mimosa bimucronata (br3461, br3470), both of which are woody legumes native to brazil. on the basis of 16s rrna gene sequence similarities, all the strains were shown previously to belong to the genus burkholderia. a polyphasic approach, including dna-dna hybridizations, pfge of whole-genome dna profiles, whole-cell protein analyses, fatty acid methyl ester ana ... | 2007 | 17473258 |
| diverse bacteria isolated from root nodules of trifolium, crotalaria and mimosa grown in the subtropical regions of china. | to analyze the diversity and relationships of rhizobia in the subtropical and tropical zones of china, we characterized 67 bacterial strains isolated from root nodules of five legume species in the genera trifolium, crotalaria and mimosa . pcr-amplified 16s rdna rflp, numerical taxonomy, sds-page of whole cell proteins, sequencing of 16s rdna and dna-dna hybridization grouped the isolates into 17 lineages belonging to bradyrhizobium, mesorhizobium, rhizobium, sinorhizobium and burkholderia, as w ... | 2007 | 17497134 |
| membrane effects of 2,4-dichlorophenoxyacetic acid in motor cells of mimosa pudica l. | 2,4-dichlorophenoxyacetic acid applied to excised leaves of mimosa pudica l. inhibited in a dose-dependent manner the shock-induced pulvinar movement. this inhibition was negatively correlated with the amount of [(14)c] 2,4-dichlorophenoxyacetic acid present in the vicinity of the motor cells. although 2,4-dichlorophenoxyacetic acid is a weak acid, its greatest physiological efficiency was obtained with ph values close to neutrality. this observation opens the question of its mode of action whic ... | 2007 | 17502151 |
| a preliminary investigation of pre-dispersal seed predation by acanthoscelides schrankiae horn (coleoptera: bruchidae) in mimosa bimucronata (dc.) kuntze trees. | this is the first record of acanthoscelides schrankiae horn. feeding in seeds of mimosa bimucronata (dc.) kuntze. we investigated the pattern of oviposition and seed exploitation by a. schrankiae, and the distribution of mature fruits and seed predation in the inflorescences. we also compared the percentage of predated seeds, the total dry weight of fruits and non-predated seeds, the percentage of aborted seeds, and the percentage of non-emergent insects, among different quadrants of the m. bimu ... | 2007 | 17607452 |
| vegetable and synthetic tannins induce hormesis/toxicity in sea urchin early development and in algal growth. | mimosa tannin and phenol-based synthetic tannin (syntan) were tested for toxicity to sea urchin (paracentrotus lividus and sphaerechinus granularis) early development and to marine algal growth (dunaliella tertiolecta). sea urchin embryogenesis was affected by vegetable tannin and syntan water extracts (vtwe and stwe) at levels >or=1mg/l. developmental defects were significantly decreased at vtwe and stwe levels of 0.1 and 0.3mg/l when control cultures displayed suboptimal quality, i.e. <70% "vi ... | 2007 | 16895741 |
| therapeutic effectiveness of a mimosa tenuiflora cortex extract in venous leg ulceration treatment. | the cortex of mimosa tenuiflora is a popular remedy utilized in mexico for the treatment of skin lesions. modern studies support the existence in this cortex of compounds with cicatrizing properties. in the present study the therapeutic effectiveness of an extract elaborated with this bark in the treatment of venous leg ulceration disease was explored. a randomized, double-blind, placebo-controlled clinical trial was conducted with ambulatory patients distributed into two groups, one receiving a ... | 2007 | 17088036 |
| metal biosorption capability of cupriavidus taiwanensis and its effects on heavy metal removal by nodulated mimosa pudica. | a novel metal biosorption system consisting of the symbiotic combination of an indigenous metal-resistant rhizobial strain, cupriavidus taiwanensis tj208, and its host plant mimosa pudica has been developed for the removal of heavy-metal pollutants. free-living c. taiwanensis tj208 cells were able to adsorb 50.1, 19.0, and 19.6 mg/g of pb, cu, and cd, respectively. after nodulation via inoculation with strain tj208, the metal uptake ability of m. pudica markedly increased, as the nodulated m. pu ... | 2008 | 17624667 |
| early events induced by chitosan on plant cells. | chitosan (a polymer of beta-1,4-glucosamine residues) is a deacetylated derivative of chitin which presents antifungal properties and acts as a potent elicitor of plant resistance against fungal pathogens. attention was focused in this study on the chitosan-induced early events in the elicitation chain. thus, it was shown that chitosan triggered in a dose-dependent manner rapid membrane transient depolarization of mimosa pudica motor cells and, correlatively, a transient rise of ph in the incuba ... | 2008 | 18515832 |
| burkholderia sabiae sp. nov., isolated from root nodules of mimosa caesalpiniifolia. | two rhizobial strains, br3407(t) and br3405, were isolated from nitrogen-fixing nodules on the roots of mimosa caesalpiniifolia, a legume tree native to brazil. on the basis of 16s rrna gene sequence similarities, both strains were shown previously to belong to the genus burkholderia. a polyphasic approach, including dna-dna hybridizations, pulsed-field gel electrophoresis of whole-genome dna profiles, whole-cell protein analyses, fatty acid methyl ester analysis and extensive biochemical charac ... | 2008 | 18768625 |
| [beta-proteorhizobia and nonrhizobial species--a review]. | the terms alpha- and beta-rhizobia were proposed to distinguish the rhizobial alpha- and beta-proteorhizobia respectively. in this review we present recently development of rhizobial taxonomy about beta-rhizobia in the genus burkholeria, cupriavidus isolated from mimosa and alpha-proteorhizobia belonging to methylobacterium, devosia, ochrobactrum, phyllobacterium and blastobacter lineage. furthermore, we also introduced the evolution of symbiosis related genes such as noda and nifh, and posed so ... | 2008 | 19160827 |
| biosorption of cu(ii) from aqueous solutions by mimosa tannin gel. | the biosorption of cu(ii) from aqueous solutions by mimosa tannin resin (mtr) was investigated as a function of particle size, initial ph, contact time and initial metal ion concentration. the aim of this study was to understand the mechanisms that govern copper removal and find a suitable equilibrium isotherm and kinetic model for the copper removal in a batch reactor. the experimental isotherm data were analysed using the langmuir, freundlich and temkin equations. the equilibrium data fit well ... | 2008 | 18289780 |
| processing conditions analysis of eucalyptus globulus plywood bonded with resol-tannin adhesives. | phenol-formaldehyde resol containing mimosa tannin extract was employed to produce plywood panels with two plies from eucalyptus globulus veneers. the effect of processing conditions and tannin content on the gelation time of the adhesive in the glue line was evaluated by dynamic-mechanical analysis (dma). these results were related with shear strength and wood failure of glue line in the final panels. hazardous petrochemical phenol could be partially substituted in resols in industrial applicat ... | 2008 | 18024109 |
| aquaporins and plant leaf movements. | background: plant leaf movements can be mediated by specialized motor organs, the pulvini, or can be epinastic (i.e. based on different growth velocities of the adaxial and abaxial halves of the leaf). both processes are associated with diurnally regulated increases in rates of membrane water transport, which in many cases has been shown to be facilitated by aquaporins. rhythmic leaf movements are known from many plant species, but few papers deal with the involvement of aquaporins in such movem ... | 2008 | 18024416 |
| teratogenicity of mimosa tenuiflora seeds to pregnant rats. | bone and other malformations caused by the ingestion of mimosa tenuiflora are common in ruminants in the brazilian semiarid. the aim of this research was to study the teratogenic effects of m. tenuiflora in wistar rats (rattus novergicus). the experimental group had 15 females and was fed, from the 6th to the 21st day of pregnancy, with a ration containing 10% of m. tenuiflora seeds. the control group, with 10 females, was fed with the same ration without seeds. there were no differences in weig ... | 2008 | 18078971 |
| monitoring of green waste composting process based on redox potential. | among compostable matrices, green wastes represent a significant fraction which can be used as an amendment after composting. several indicators, e.g. c(ha)/c(fa) or c/n ratios give information on evolution of the organic matrix during composting. however, measurement of these parameters is complex and requires laboratory conditions. the aim of this study was to propose on site easy-to-measure parameters to monitor composting process, such as redox potential (eh), related to complex indices such ... | 2008 | 18178428 |
| pulvinus functional traits in relation to leaf movements: a light and transmission electron microscopy study of the vascular system. | previous studies on legume pulvini suggest that the vascular system plays an important role in the redistribution of ions and transmission of stimuli during leaf's movements. however, the number of anatomical and ultrastructural studies is limited to few species. the aim of this paper is to investigate the structure and cellular features of the pulvinus vascular system of nine legume species from brazilian cerrado, looking for structural traits pointing to its participation in the leaf's movemen ... | 2008 | 17950612 |
| actin dynamics mediates the changes of calcium level during the pulvinus movement of mimosa pudica. | the bending movement of the pulvinus of mimosa pudica is caused by a rapid change in volume of the abaxial motor cells, in response to various environmental stimuli. we investigated the relationship between the actin cytoskeleton and changes in the level of calcium during rapid contractile movement of the motor cells that was induced by electrical stimulation. the bending of the pulvinus was retarded by treatments with actin-affecting reagents and calcium channel inhibitors. the actin filaments ... | 2008 | 19513198 |
| indoleamines and calcium channels influence morphogenesis in in vitro cultures of mimosa pudica l. | the present article reports the interplay of indoleamine neurohormones viz. serotonin, melatonin and calcium channels on shoot organogenesis in mimosa pudica l. in vitro grown nodal segments were cultured on ms medium with b5 vitamins containing serotonin (ser) and melatonin (mel) at 100 microm and indoleamine inhibitors viz. serotonin to melatonin conversion inhibitor p-chlorophenylalanine (p-cpa) at 40 microm, serotonin reuptake inhibitor (prozac) 20 microm. in another set of experiment, calci ... | 2009 | 20514228 |
| energy reflectance and tympanometry in normal and otosclerotic ears. | the major goal of this study was to examine differences in the middle ear mechano-acoustical properties of normal ears and ears with surgically confirmed otosclerosis using conventional and multifrequency tympanometry (mft) as well as energy reflectance (er). second, we sought to compare er, standard tympanometry, and mft in their ability to distinguish healthy and otosclerotic ears examining both overall test performance (sensitivity and specificity) and receiver- operating characteristic analy ... | 2009 | 19194289 |
| two galactomannan preparations from seeds from mimosa scabrella (bracatinga): complexation with oxovanadium(iv/v) and cytotoxicity on hela cells. | two galactomannans, galman-a and galman-b, were isolated from seeds of mimosa scabrella (bracatinga), with deactivation and exposure to native enzymes, respectively. they were treated with oxovanadium(iv) and oxovanadium(v), designated (vo(2+)/vo(3+)) to form galman-a:vo(2+)/vo(3+) and galman-b:vo(2+)/vo(3+) complexes, respectively. the potentiometric studies provided the binding constants for the complexes and the resulting complexed species were a function of ph. (51)v nmr spectra of galman-a: ... | 2009 | 19230977 |
| evaluation of wound healing activity of root of mimosa pudica. | ethno pharmacological relevance: mimosa pudica, commonly known as touch-me-not, is used in folklore medicine in arresting bleeding and in skin diseases. | 2009 | 19397984 |
| arabinogalactans from mimosa tenuiflora (willd.) poiret bark as active principles for wound-healing properties: specific enhancement of dermal fibroblast activity and minor influence on hacat keratinocytes. | aqueous extracts from the bark of mimosa tenuiflora (willd.) poirett (mimosaceae), tradionally known as "tepescohuite", are widely used for wound-healing and burns in middle and south america. no pharmacological data are available on the influence of aqueous extracts and high molecular constituents on human skin cells. | 2009 | 19505559 |
| burkholderia spp. are the most competitive symbionts of mimosa, particularly under n-limited conditions. | bacteria isolated from mimosa nodules in taiwan, papua new guinea, mexico and puerto rico were identified as belonging to either the alpha- or beta-proteobacteria. the beta-proteobacterial burkholderia and cupriavidus strains formed effective symbioses with the common invasive species mimosa diplotricha, m. pigra and m. pudica, but the alpha-proteobacterial rhizobium etli and r. tropici strains produced a range of symbiotic phenotypes from no nodulation through ineffective to effective nodulatio ... | 2009 | 19040456 |