Publications

TitleAbstractYear
Filter
PMID(sorted descending)
Filter
pollen viability of polygala paniculata l. (polygalaceae) using different staining methods.polygala paniculata l. is a medicinal plant that grows in the brazilian atlantic coast, known as 'barba-de-são-joão', 'barba-de-bode', 'vassourinha branca', and 'mimosa'. in this study, pollen viability was estimated by three different staining methods: 2% acetic orcein, 2% acetic carmine, and alexander's stain. the young inflorescences of twenty accessions were collected and fixed in a solution of ethanol: acetic acid (3:1) for 24 hours, then stored in ethanol 70% under refrigeration. six slide ...201223682430
rheological characterization of o/w emulsions incorporated with neutral and charged polysaccharides.the effects of polysaccharides, including xyloglucan from hymenaea courbaril (xg), galactomannans from schizolobium parahybae (gmsp) and mimosa scabrella (gmms), xanthan gum (xt), sodium hyaluronate (hna) and fucogel(®) (fg), on the rheological behavior of cosmetic emulsions were evaluated. these incorporations gave rise to six emulsified systems, denoted xge, gmspe, gmmse, xte, hnae and fge, respectively. the emulsion consistency was found to follow the trend gmspe>xge>hnae>fge>xte>gmmse. in ge ...201223465929
potent hypoglycemic effect of nigerian anti-diabetic medicinal plants.the objective of this paper was to investigate the phytochemistry and hypoglycemic activities of aqueous extracts of anisopus mannii, daniella olivieri, detarium macrocarpum, leptedenia hastate and mimosa invisa, traditionally prescribed for diabetes mellitus. the aqueous extracts were tested for phytochemicals and free radical scavenging activity by the dpph assay. the antidiabetic tests were performed in normoglycemic and alloxan induced diabetic mice. high intensity of saponins, xanthones, ta ...201122754948
anxiolytic activity evaluation of four medicinal plants from cameroon.afrormosia laxiflora (a. laxiflora), chenopodium ambrosioides (c. ambrosioides), microglossa pyrifolia (m. pyrifolia) and mimosa pudica (m. pudica) are plants used in traditional medicine in cameroon to treat insomnia, epilepsy, anxiety, and agitation. they were evaluated for their anxiolytic like activity in mice. animal models (elevated plus maze and stress-induced hyperthermia tests) were used. the four plants showed anxiolytic activity. in stress-induced hyperthermia test, a. laxiflora, c. a ...201122754066
burkholderia and cupriavidus spp. are the preferred symbionts of mimosa spp. in southern china.rhizobia were isolated from invasive mimosa spp. (m. diplotricha and m. pudica) in dehong district of the province of yunnan in subtropical southern china. almost all of the 98 isolates were β-rhizobia in the genera burkholderia and cupriavidus. these strains were analyzed for their distribution characteristics together with strains from a previous study from sishuangbanna. the proportion of nodules containing each β-rhizobial genus varied between mimosa species, with cupriavidus being predomina ...201222268711
new beta rhizobial strains able to efficiently nodulate parapiptadenia rigida (benth.) brenan.among the leguminous trees natives to uruguay parapiptadenia rigida (angico), a mimosoideae legume, is one of the most promising species for agroforestry. like many other legumes, it is able to establish symbiotic associations with rhizobia and belongs to the group known as "nitrogen fixing trees", which are major components of agroforestry systems. information about rhizobial symbionts for this genus is scarce, and thus the aim of this work was to identify and characterize rhizobia associated w ...201222226956
determination of n,n-dimethyltryptamine in mimosa tenuiflora inner barks by matrix solid-phase dispersion procedure and gc-ms.n,n-dimethyltryptamine (dmt) is a potent hallucinogen found in beverages consumed in religion rituals and neo-shamanic practices over the world. two of these religions, santo daime and união do vegetal (udv), are represented in countries including australia, the united states and several european nations. in some of this countries there have been legal disputes concerning the legalization of ayahuasca consumption during religious rituals, a beverage rich in dmt. in brazil, even children and preg ...201122209595
bioactivity evaluation of plant extracts used in indigenous medicine against the snail, biomphalaria glabrata, and the larvae of aedes aegypti.this investigation examined the molluscicidal and larvicidal activity of eight plants that are used in the traditional medicine of the pankararé indigenous people in the raso da catarina region, bahia state, brazil. the tested plants were chosen based on the results of previous studies. only those plants that were used either as insect repellents or to treat intestinal parasitic infections were included in the study. crude extracts (ces) of these plants were tested for their larvicidal activity ...201222194773
Antimicrobial activities of three species of family mimosaceae.The antimicrobial activities of crude methanolic extract of leaves of Acacia nilotica L., Albizia lebbeck L. and Mimosa himalayana Gamble belonging to family mimosaceae were investigated in this research work. Antibacterial activity was studied by agar well diffusion method against one gram-positive Bacillus subtilis and three gram-negative Pseudomonas aeruginosa, Escherichia coli and Klebsiella pneumonia. Crude extract of all plants showed best activity against gram-negative bacterial strains w ...201222186331
embryonic death in goats caused by the ingestion of mimosa tenuiflora.to determine the teratogenic effect of mimosa tenuiflora, the green fresh plant was administered ad libitum to 12 goats (group 1) from day 1 to day 30 of gestation. upon ultrasonographic examination, on day 30, not one of these goats was pregnant, demonstrating that m. tenuiflora causes embryonic death. six goats (group 2) ingested m. tenuiflora from day 30 to day 60 of pregnancy. four goats delivered seven healthy kids and two were not pregnant based on ultrasonographic examination on day 45 su ...201122178006
Cytochemical and electron probe X-ray microanalysis studies on the distribution change of intracellular calcium in columella cells of soybean roots under simulated microgravity.The columella cells of soybean roots grown under gravity and simulated microgravity induced by a clinostat were examined using potassium pyroantimonate (PA) and quantitative X-ray microanalysis of cryosections to determine the role of Ca in the regulation of the gravitropic response. Amyloplasts in the columella cells were localized exclusively at the bottom under gravity, but diffusely distributed in the cytoplasmic matrix under simulated microgravity, thus supporting the statolith theory. In t ...201122155718
a review of poisonous plants that cause reproductive failure and malformations in the ruminants of brazil.the objective of this review is to provide a report on toxic plants causing reproductive problems in ruminants in brazil. aspidosperma pyrifolium causes abortion or stillbirth in goats, as well as most likely in sheep and cattle, in the semiarid regions of northeastern brazil. intoxications by ateleia glazioveana, tetrapterys acutifolia and t. multiglandulosa result in abortion and neonatal mortality in cattle and sheep, and the same signs have been experimentally observed in goats. these three ...201122147504
A randomised comparative trial on the use of a hydrogel with tepescohuite extract (Mimosa tenuiflora cortex extract-2G) in the treatment of venous leg ulcers.Tepescohuite is an extract obtained from the bark of the Mimosa tenuiflora tree and is used as an empirical treatment in wounds for its healing and antiseptic properties. Venous leg ulcers (VLUs) are a common health care problem in most countries with a high rate of morbidity. The standard of care is moist interactive healing and compression; however, the ideal topical treatment is yet to be established. This study is designed to evaluate the effectiveness and safety of M. tenuiflora cortex extr ...201122128789
a new fatty aldol ester from the aerial part of mimosa invisa (mimosaceae).a new aldol ester named 17-o-triacontanoylheptadecanal (1) was isolated from the aerial part of mimosa invisa (mimosaceae) together with eight known compounds identified as β-sitosterol (2), α-amyrine (3), lupeol (4), 4'-o-methylepinumisoflavone (5), alpinumisoflavone (6), betulinic acid (7), 3-o-β-d-glucopyranoside of sitosterol (8) and epirobinetinidol (9). the structures of compounds were determined on the basis of nmr and mass spectrometry data as well as by comparing the data reported in th ...201122117104
genetic diversity of mimosa pudica rhizobial symbionts in soils of french guiana: investigating the origin and diversity of burkholderia phymatum and other beta-rhizobia.the genetic diversity of 221 mimosa pudica bacterial symbionts trapped from eight soils from diverse environments in french guiana was assessed by 16s rrna pcr-rflp, rep-pcr fingerprints, as well as by phylogenies of their 16s rrna and reca housekeeping genes, and by their nifh, noda and nodc symbiotic genes. interestingly, we found a large diversity of beta-rhizobia, with burkholderia phymatum and burkholderia tuberum being the most frequent and diverse symbiotic species. other species were als ...201122093060
in vitro evaluation, in vivo quantification, and microbial diversity studies of nutritional strategies for reducing enteric methane production.the main objective of the present work was to study nutritive strategies for lessening the ch(4) formation associated to ruminant tropical diets. in vitro gas production technique was used for evaluating the effect of tannin-rich plants, essential oils, and biodiesel co-products on ch(4) formation in three individual studies and a small chamber system to measure ch(4) released by sheep for in vivo studies was developed. microbial rumen population diversity from in vitro assays was studied using ...201122083272
burkholderia symbiotica sp. nov., isolated from root nodules of mimosa spp. native to north east brazil.four strains, jpy345t, jpy347, jpy366 and jpy581 were isolated from nitrogen-fixing nodules on the roots of two mimosa spp. (m. cordistipula, m. misera) native to north east brazil, and their taxonomic positions were investigated by a polyphasic approach. all four strains grew at 15-43 °c (optimum, 35 &degc), at ph 4.0-7.0 (optimum, ph 5.0) and with 0-2 % nacl (optimum, 0 %). on the basis of 16s rrna gene sequence analysis, a representative strain (jpy345t) showed 97.3 % sequence similarity to t ...201122081715
rhizobium grahamii sp. nov. from dalea leporina, leucaena leucocephala, clitoria ternatea nodules, and rhizobium mesoamericanum sp. nov. from phaseolus vulgaris, siratro, cowpea and mimosa pudica nodules.two novel related rhizobium species, rhizobium grahamii and rhizobium mesoamericanum were identified by a polyphasic approach using dna-dna hybridization, whole genome sequencing, phylogenetic and phenotypic characterization including nodulation of leucaena leucocephala and phaseolus vulgaris (bean). as similar bacteria were found in los tuxtlas rain forest and in central america we suggest the existence of a mesoamerican microbiological corridor. the type strain of rhizobium grahamii sp. nov. i ...201122081714
Agave salmiana Plant Communities in Central Mexico as Affected by Commercial Use.Agave salmiana is a native plant species harvested for the commercial production of mezcal (Agave spirits) in the highlands of central Mexico. The objective of this study was to identify vegetation changes in natural communities where A. salmiana has been differentially harvested for commercial purposes. Three plant community categories were identified in the state of Zacatecas based on their history of A. salmiana utilization: short (less than 10 years of use), moderate (about 25 years), and lo ...201121983998
Hypoglycemic activity of Thai medicinal plants selected from the Thai/Lanna Medicinal Recipe Database MANOSROI II.Five medicinal plants including Anogeissus acuminata (Roxb. ex DC.) Gills. & Perr. (Combretaceae), Catunaregam tormentosa (Bl. ex DC.) Tirveng (Rubiaceae), Dioecrescis erythroclada (Kurz) Tirveng. (Rubiaceae), Mimosa pudica Linn. var. hispida Bren. (Fabaceae), and Rauwolfia serpentina (L). Benth. ex Kurz. (Apocyanaceae), which have been traditionally used for the treatment of diabetes mellitus and other diseases for several generations by the Thai-Lanna people in the Northern part of Thailand we ...201121925259
5-deoxyflavones with cytotoxic activity from mimosa diplotricha.bioassay-guided isolation of mimosa diplotricha led to the isolation of four new 5-deoxyflavones, diplotrins a-c (1-3) and diplotasin (4), together with 12 known flavonoids, flavonolignans, and triterpenoids. on the basis of spectroscopic evidence, compounds 1-4 were characterized as 2',5'-dihydroxy-3,7,8,4'-tetramethoxyflavone (1), 3'-hydroxy-3,7,8,4'-tetramethoxyflavone (2), 2'-hydroxy-7,4',5'-trimethoxyflavone (3), and 4-hydroxy-3,10,11-trimethoxyisochromeno-[4,3-b]-chromen-7(5h)-one (4). the ...201121875046
ear-canal reflectance, umbo velocity, and tympanometry in normal-hearing adults.: this study compares measurements of ear-canal reflectance (ecr) to other objective measurements of middle ear function including audiometry, umbo velocity (vu), and tympanometry in a population of strictly defined normal-hearing ears.201221857517
Comparison of ear-canal reflectance and umbo velocity in patients with conductive hearing loss: a preliminary study.: The goal of the present study was to investigate the clinical utility of measurements of ear-canal reflectance (ECR) in a population of patients with conductive hearing loss in the presence of an intact, healthy tympanic membrane and an aerated middle ear. We also sought to compare the diagnostic accuracy of umbo velocity (VU) measurements and measurements of ECR in the same group of patients.201221857516
Boolean function applied to Mimosa pudica movements.Seismonastic or thigmonastic movements of Mimosa pudica L result most from the fast loss of water from swollen motor cells, generating temporarily collapse of cells and inducing quick curvature in the parts where they are located. Because this simple reason, this plant has been much studied since the 18th century, leading us to think about the classical binomial stimulus-response (action-reaction) compared with animals. Mechanic and electrical stimulus were used to investigate an analogy of the ...201121847029
lajjalu treatment of uterine prolapse.mimosa pudica was found useful in cases of uterine prolapse with bleeding, consistent with my experience of working with the condition for more than 45 years, and treating hundreds of such cases of uterine prolapse. hysterectomy has been avoided up to this date, and is not now expected to be recommended.201021836800
legume-nodulating betaproteobacteria: diversity, host range and future prospects.rhizobia form specialized nodules on the roots of legumes (fabaceae) and fix nitrogen in exchange for carbon from the host plant. although the majority of legumes form symbioses with rhizobium and its relatives in the alphaproteobacteria, some legumes, such as those in the large genus mimosa, are nodulated predominantly by betaproteobacteria in the genera burkholderia and cupriavidus. the principal centers of diversity of these bacteria are in central brazil and south africa. molecular phylogene ...201121830951
purification and biochemical characterization of a novel ecto-apyrase, mp67 from mimosa pudica.we have previously reported the presence of an apyrase in mimosa pudica. however, only limited information is available for this enzyme. thus, in the present study, the apyrase was purified to homogeneity. the purified enzyme had a molecular mass of around 67 kd, and was able to hydrolyze both ntp and ndp as substrate. the ratio of atp to adp hydrolysis velocity, the ksh value, of the purified protein was 0.01 in the presence of calcium ion, showing extremely high substrate specificity toward ad ...201121788364
the evolutionary history of mimosa (leguminosae): toward a phylogeny of the sensitive plants.ôçó premise of the study: large genera provide remarkable opportunities to investigate patterns of morphological evolution and historical biogeography in plants. a molecular phylogeny of the species-rich and morphologically and ecologically diverse genus mimosa was generated to evaluate its infrageneric classification, reconstruct the evolution of a set of morphological characters, and establish the relationships of old world species to the rest of the genus. ôçó methods: we used trnd-trnt plast ...201121730340
effect of six tropical tanniferous plant extracts on larval exsheathment of haemonchus contortus.tanniferous plants represent a promising alternative for controlling gastrointestinal nematodes of small ruminants. this experiment evaluated the effects of extracts from the leaf and stem of anadenanthera colubrina, leucaena leucocephala and mimosa tenuiflora on larval exsheathment of haemonchus contortus in vitro and verified the role of tannins in this process. third-stage larvae of h. contortus were incubated with extracts for 3 hours and were exposed to sodium hypochlorite solution. the ext ...201121722491
efficacy evaluations of mimosa pudica tannin isolate (mpt) for its anti-ophidian properties.aim of the study: evaluations of the anti-snake venom efficacy of mimosa pudica tannin isolate (mpt) obtained from root of the plant. materials and methods: mpt was investigated in vitro and in vivo for its efficacy against the venom of naja kaouthia snake. results: in vitro: (1) mice injected i.p. with mpt pre-incubated with naja kaouthia venom at concentrations as low as 0.625mg/ml showed 100% survival after a 24-h observation period. (2) in the proteomics study, mice injected with mpt pre-inc ...201121640180
effects of feed-supplementation and hide-spray application of two sources of tannins on enteric and hide bacteria of feedlot cattle.pathogenic bacteria attached to the hide or shed in the feces of cattle at slaughter can contaminate carcasses intended to be processed for human consumption. therefore, new pre-harvest interventions are needed to prevent the carriage and excretion of foodborne pathogens in cattle presented to the processing plant. the objectives of this study were to examine the antimicrobial effects of hydrolysable tannin-rich chestnut and condensed tannin-rich mimosa extracts on bacterial indicators of foodbo ...201121547824
effects of wattle extract on microcystic aeruginosa growth and the simulated mini fresh water ecosystem.in recent years, there has been an apparent increase in the occurrence of harmful algalblooms in fresh waters. the value of applying the novel wattle extract (acacia mimosa) to inhibitalgal growth was assessed. our results showed that the growth of microcystis aeruginosa was successfully repressed by the plant extract and resulted in decreased extracellular microcystin-lr production. in the experiments, it showed a very effective inhibition in the stage of exponential growth (the largest decreas ...201021506493
herbs, thyme essential oil and condensed tannin extracts as dietary supplements for broilers, and their effects on performance, digestibility, volatile fatty acids and organoleptic properties.1. herbs, thyme essential oil (eo) and condensed tannin (ct) extracts were compared for their effects, as dietary supplements, on broiler growth performance, nutrient digestibility and volatile fatty acid (vfa) profiles in the gut. cooked meat from the birds fed on diets with 4 herbs and an eo extract was compared by a taste panel against those fed on the control treatment, for organoleptic properties in the meat. 2. female broiler chicks were fed on wheat-soybean meal diets from 0-42 d of age. ...201121491246
studies on the active components and antioxidant activities of the extracts of mimosa pudica linn. from southern china.the total flavonoid (tf) and total phenolic (tp) contents of the ethanol extracts of the whole plant, stem, leaf, and seed of mimosa pudica linn belonging to the genus mimosa (family: fabaceae alt. leguminosae), which originates from the subtropical regions of southern china, were determined in this experiment.201121472077
applying behavioral-ecological theory to plant defense: light-dependent movement in mimosa pudica suggests a trade-off between predation risk and energetic reward.many animal species tolerate different amounts of predation risk based on environmental conditions and the individual's own condition, often accepting greater risk when energetically stressed. we studied the sensitive plant mimosa pudica to see whether it too accepts greater risk of predation when less light energy is available. this plant displays a defensive behavior of rapidly folding its leaves when stimulated by touch, thereby decreasing visibility to herbivores. averting herbivory involves ...201121460546
an electrometric study of mimosa. 194321434114
toxicological evaluation of pooled selected fractions of mimosa invisa and protective effect of herbal decoction.the study was undertaken to evaluate the toxicity produced by the pooled selected fractions of mimosa invisa in rabbits. an attempt was made to protect the animal from the toxicity using a decoction containing hygrophila auriculata, tribulus terrestris and boerhaavia diffusa. eighteen adult rabbits were divided into three groups of six animals each. group i served as control. group ii received pooled fraction of m. invisa at 0.4 g/kg orally. group iii was administered with pooled fraction along ...201121430929
effect of mimosa pudica (linn.) extract on anxiety behaviour and gabaergic regulation of 5-ht neuronal activity in the mouse.mimosa pudica (linn.) (m. pudica l.) is a plant used in some countries to treat anxiety and depression. in the present study we investigated the effects of an aqueous extract of m. pudica l. on mouse anxiety-like behaviour using the elevated t maze, and on regulation of dorsal raphe nucleus (drn) 5-hydroxytryptamine (5-ht) neuronal activity using an in-vitro mouse brain slice preparation. acute treatment with m. pudica l. extract had an anxiolytic effect on behaviour in the elevated t maze, spec ...201121427203
circadian variations in biologically closed electrochemical circuits in aloe vera and mimosa pudica.the circadian clock regulates a wide range of electrophysiological and developmental processes in plants. this paper presents, for the first time, the direct influence of a circadian clock on biologically closed electrochemical circuits in vivo. here we show circadian variation of the plant responses to electrical stimulation. the biologically closed electrochemical circuits in the leaves of aloe vera and mimosa pudica, which regulate their physiology, were analyzed using the charge stimulation ...201121334987
abagovomab: an anti-idiotypic ca-125 targeted immunotherapeutic agent for ovarian cancer.ovarian cancer remains the leading cause of death due to gynecologic malignancies. most patients present with advanced disease at the time of diagnosis. although many have a good initial response to surgical debulking and platinum-based chemotherapy, relapse is common, with the eventual development of chemotherapy resistance. innovative treatments are needed in the remission setting to prolong the disease-free interval or prevent recurrence. abagovomab is a murine monoclonal anti-idiotypic antib ...201121322756
tannin fingerprinting in vegetable tanned leather by solid state nmr spectroscopy and comparison with leathers tanned by other processes.solid state -¦-¦c-nmr spectra of pure tannin powders from four different sources--mimosa, quebracho, chestnut and tara--are readily distinguishable from each other, both in pure commercial powder form, and in leather which they have been used to tan. groups of signals indicative of the source, and type (condensed vs. hydrolyzable) of tannin used in the manufacture are well resolved in the spectra of the finished leathers. these fingerprints are compared with those arising from leathers tanned wi ...201121278677
cupriavidus taiwanensis bacteroids in mimosa pudica indeterminate nodules are not terminally differentiated.the beta-rhizobium cupriavidus taiwanensis forms indeterminate nodules on mimosa pudica. c. taiwanensis bacteroids resemble free-living bacteria in terms of genomic dna content, cell size, membrane permeability, and viability, in contrast to bacteroids in indeterminate nodules of the galegoid clade. bacteroid differentiation is thus unrelated to nodule ontogeny.201121257807
screening of ethanol, petroleum ether and chloroform extracts of medicinal plants, lawsonia inermis l. and mimosa pudica l. for antibacterial activity.organic extracts (ethanol, petroleum ether and chloroform) of two medicinal plants lawsonia inermis l. and mimosa pudica l. were proven for antibacterial properties against 15 gram-positive and gram-negative human pathogenic bacteria. among the three types of extracts tested, ethanol extract was found to possess maximum antibacterial activity. the diameter of the zone of inhibition of bacterial growth showed that gram-negative bacteria are more sensitive than gram-positive bacteria to plant extr ...201021188055
evaluation of green synthesized silver nanoparticles against parasites.green nanoparticle synthesis has been achieved using environmentally acceptable plant extract and eco-friendly reducing and capping agents. the present study was based on assessments of the antiparasitic activities to determine the efficacies of synthesized silver nanoparticles (agnps) using aqueous leaf extract of mimosa pudica gaertn (mimosaceae) against the larvae of malaria vector, anopheles subpictus grassi, filariasis vector culex quinquefasciatus say (diptera: culicidae), and rhipicephalu ...201021181192
rhizobium vallis sp. nov., isolated from nodules of three leguminous species grown in yunnan province of china.four bacterial strains isolated from root nodules of phaseolus vulgaris, mimosa pudica and indigofera spicata plants grown in yunnan province of china were identified as a lineage within the genus rhizobium according to the analysis of 16s rrna gene sequence, most similar with r. lusitanum p1-7(t) (99.1% sequence similarity) and r. rhizogenes iam13570(t) (99.0%). these strains also formed a distinctive group from the reference strains for defined rhizobium species in a polyphasic approach, inclu ...201021131504
detection of anti-tuberculosis activity in some folklore plants by radiometric bactec assay.the anti-tubercular drugs are less effective because of the emergence of multi-drug resistant (mdr) and extensively drug resistant (xdr) strains of m. tuberculosis, so plants being an alternative source of anti-microbial compounds. the aim of this study was to investigate anti-tuberculosis potential of the plants using mycobacterium smegmatis as a rapid screening model for detection of anti-mycobacterial activity and further to evaluate the active plants for anti-tuberculosis activity against m. ...201021114505
mechanical and electrical anisotropy in mimosa pudica pulvini.thigmonastic or seismonastic movements in mimosa pudica, such as the response to touch, appear to be regulated by electrical, hydrodynamical, and chemical signal transduction. the pulvinus of mimosa pudica shows elastic properties, and we found that electrically or mechanically induced movements of the petiole were accompanied by a change of the pulvinus shape. as the petiole falls, the volume of the lower part of the pulvinus decreases and the volume of the upper part increases due to the redis ...201020855975
palmate-like pentafoliata1 encodes a novel cys(2)his(2) zinc finger transcription factor essential for compound leaf morphogenesis in medicago truncatula.as the primary site for photosynthetic carbon fixation and the interface between plants and the environment, plant leaves play a key role in plant growth, biomass production and survival, and global carbon and oxygen cycles. leaves can be simple with a single blade or compound with multiple units of blades known as leaflets. in a palmate-type compound leaf, leaflets are clustered at the tip of the leaf. in a pinnate-type compound leaf, on the other hand, leaflets are placed on a rachis in distan ...201020724826
insecticidal and larvicidal activities of medicinal plant extracts against mosquitoes.in recent years, use of environment friendly and biodegradable natural insecticides of plant origin have received renewed attention as agents for vector control because they are rich in bioactive chemicals, active against a limited number of species including specific target insects, and biodegradable. the present study was carried out to evaluate the adulticidal, repellent, and larvicidal activity of crude hexane, ethyl acetate, and methanol extracts of eight plants, viz. aristolochia indica l. ...201020689968
thermogravimetric analysis of giant sensitive plants under air atmosphere.the aim of this work is to utilise thermal analysis to study the thermal degradation of giant sensitive plants (mimosa pigra l.) or mimosa under oxidative environment. thermogravimetric method was used under air sweeping in dynamic conditions at the heating rates of 10, 30, and 50 degrees c/min, from room temperature to about 725 degrees c. starting with dehydration step between 30 and 150 degrees c, the main thermal decomposition process under air showed two distinct degradation zones, correspo ...201020655742
suppression of ovalbumin-induced airway inflammatory responses in a mouse model of asthma by mimosa pudica extract.asthma is an inflammatory airway disease. the pathogenic mechanisms of asthma include the infiltration of leukocytes and release of cytokines. mimosa pudica (mp) has been used traditionally for the treatment of insomnia, diarrhea and inflammatory diseases. although mp extract has various therapeutic properties, the effect of this extract on asthma has not yet been reported. this study investigated the suppressive effects of mp extract on asthmatic responses both in vitro and in vivo. mp extract ...201120623591
evaluation of mimosa seed mucilage as bucoadhesive polymer.in the present study, buccal discs of fluconazole were prepared by direct compression method employing mimosa pudica seed mucilage as bucoadhesive polymer. the formulation of buccal discs was optimised using 3-factor, 3-level central composite design, using polymer/excipient ratio, drug concentration and compression force as the independent variables and bioadhesion time and percentage release as dependent variables. the results revealed that polymer/excipient ratio and compression force are the ...201020606373
mimosa: a system for minimotif annotation.minimotifs are short peptide sequences within one protein, which are recognized by other proteins or molecules. while there are now several minimotif databases, they are incomplete. there are reports of many minimotifs in the primary literature, which have yet to be annotated, while entirely novel minimotifs continue to be published on a weekly basis. our recently proposed function and sequence syntax for minimotifs enables us to build a general tool that will facilitate structured annotation an ...201020565705
comparative pollen preferences by africanized honeybees apis mellifera l. of two colonies in pará de minas, minas gerais, brazil.the aim of this study was to investigate the polliniferous floral sources used by apis mellifera (l.) (africanized) in an apiary situated in pará de minas, minas gerais state, and evaluate the pollen prefences among the beehives. two beehives of langstroth type with frontal pollen trap collectors were used. the harvest was made from september 2007 to march 2008, with three samples of pollen pellets colected per month per beehive. the subsamples of 2 grams each were prepared according to the euro ...201020563410
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 ...200920514228
burkholderia phymatum strains capable of nodulating phaseolus vulgaris are present in moroccan soils.phylogenetic analysis of 16s rrna, nodc, and nifh genes of four bacterial strains isolated from root nodules of phaseolus vulgaris grown in morocco soils were identified as burkholderia phymatum. all four strains formed n(2)-fixing nodules on p. vulgaris and mimosa, acacia, and prosopis species and reduced acetylene to ethylene when cultured ex planta.201020472732
nodulation and nitrogen fixation by mimosa spp. in the cerrado and caatinga biomes of brazil.*an extensive survey of nodulation in the legume genus mimosa was undertaken in two major biomes in brazil, the cerrado and the caatinga, in both of which there are high degrees of endemicity of the genus. *nodules were collected from 67 of the 70 mimosa spp. found. thirteen of the species were newly reported as nodulating. nodules were examined by light and electron microscopy, and all except for m. gatesiae had a structure typical of effective mimosa nodules. the endosymbiotic bacteria in nodu ...201020456044
molecular electronics in pinnae of mimosa pudica.bioelectrochemical circuits operate in all plants including the sensitive plant mimosa pudica linn. the activation of biologically closed circuits with voltage gated ion channels can lead to various mechanical, hydrodynamical, physiological, biochemical, and biophysical responses. here the biologically closed electrochemical circuit in pinnae of mimosa pudica is analyzed using the charged capacitor method for electrostimulation at different voltages. also the equivalent electrical scheme of elec ...201020448476
phylogenetic relationships and diversity of β-rhizobia associated with mimosa species grown in sishuangbanna, china.in order to investigate the genetic diversity of rhizobia associated with various exotic and invasive species in tropical mainland china, 116 bacterial isolates were obtained from mimosa root nodules collected from sishuangbanna and yuanjiang districts of yunnan province. isolated rhizobia were characterized by rflp analysis of 16s rrna genes, sds-page of whole-cell proteins and box-pcr. most of the isolated strains were identified as β-rhizobia belonging to diverse populations of burkholderia a ...201120228206
non-isothermal pyrolysis characteristics of giant sensitive plants using thermogravimetric analysis.a giant sensitive plant (mimosa pigra l.) or mimosa is a fast growing woody weed that poses a major environmental problem in agricultural and wet land areas. it may have potential to be used as a renewable energy source. in this work, thermal behaviour of dried mimosa was investigated under inert atmosphere in a thermogravimetric analyzer at the heating rates of 10, 30, and 50 degrees c/min from room temperature to 1000 degrees c. pyrolysis kinetic parameters in terms of apparent activation ener ...201020189804
experimental evolution of a plant pathogen into a legume symbiont.rhizobia are phylogenetically disparate alpha- and beta-proteobacteria that have achieved the environmentally essential function of fixing atmospheric nitrogen in symbiosis with legumes. ample evidence indicates that horizontal transfer of symbiotic plasmids/islands has played a crucial role in rhizobia evolution. however, adaptive mechanisms that allow the recipient genomes to express symbiotic traits are unknown. here, we report on the experimental evolution of a pathogenic ralstonia solanacea ...201020084095
chemical composition of french mimosa absolute oil.since decades mimosa (acacia dealbata) absolute oil has been used in the flavor and perfume industry. today, it finds an application in over 80 perfumes, and its worldwide industrial production is estimated five tons per year. here we report on the chemical composition of french mimosa absolute oil. straight-chain analogues from c6 to c26 with different functional groups (hydrocarbons, esters, aldehydes, diethyl acetals, alcohols, and ketones) were identified in the volatile fraction. most of th ...201020070087
mimosa: mixture model of co-expression to detect modulators of regulatory interaction.functionally related genes tend to be correlated in their expression patterns across multiple conditions and/or tissue-types. thus co-expression networks are often used to investigate functional groups of genes. in particular, when one of the genes is a transcription factor (tf), the co-expression-based interaction is interpreted, with caution, as a direct regulatory interaction. however, any particular tf, and more importantly, any particular regulatory interaction, is likely to be active only ...201020047660
signal transduction in mimosa pudica: biologically closed electrical circuits.biologically closed electrical circuits operate over large distances in biological tissues. the activation of such circuits can lead to various physiological and biophysical responses. here, we analyse the biologically closed electrical circuits of the sensitive plant mimosa pudica linn. using electrostimulation of a petiole or pulvinus by the charged capacitor method, and evaluate the equivalent electrical scheme of electrical signal transduction inside the plant. the discharge of a 100 microf ...201020040063
burkholderia species are ancient symbionts of legumes.burkholderia has only recently been recognized as a potential nitrogen-fixing symbiont of legumes, but we find that the origins of symbiosis in burkholderia are much deeper than previously suspected. we sampled 143 symbionts from 47 native species of mimosa across 1800 km in central brazil and found that 98% were burkholderia. gene sequences defined seven distinct and divergent species complexes within the genus burkholderia. the symbiosis-related genes formed deep burkholderia-specific clades, ...201020002602
mimosa pudica: electrical and mechanical stimulation of plant movements.thigmonastic movements in the sensitive plant mimosa pudica l., associated with fast responses to environmental stimuli, appear to be regulated through electrical and chemical signal transductions. the thigmonastic responses of m. pudica can be considered in three stages: stimulus perception, electrical signal transmission and induction of mechanical, hydrodynamical and biochemical responses. we investigated the mechanical movements of the pinnae and petioles in m. pudica induced by the electric ...201019895396
wideband reflectance in normal caucasian and chinese school-aged children and in children with otitis media with effusion.wideband reflectance (wbr) is a middle ear analysis technique that quantifies frequency-specific sound conduction over a wide range of frequencies. one shortcoming of wbr is that there is limited normative data, particularly for pediatric populations and children with middle ear pathology. the goals of this study were to establish normative wbr data for early school-aged children; to determine whether wbr differs significantly between caucasian and chinese children, male and female children, and ...201019858721
evaluation of mimosa pudica seed mucilage as sustained-release excipient.the present study was conducted to investigate the sustained-release properties of mimosa pudica seed mucilage. matrix tablets of diclofenac sodium containing different proportions of mucilage and dibasic calcium phosphate as diluent were formulated by wet granulation method. the tablets had uniform physical appearance, average weight, drug content, and adequate hardness. the results of in vitro release conducted using usp type ii dissolution rate apparatus, in a dissolution media comprising of ...200919763837
in vitro antiherpetic and antirotaviral activities of a sulfate prepared from mimosa scabrella galactomannan.a chemically sulfated galactomannan (brs) from seeds of mimosa scabrella had in vitro antiviral activity against herpes simplex virus 1 (hsv-1), but not against simian rotavirus a/sa11 (sirv-a/sa11). it was examined by (13)c nmr spectroscopy, which showed the sulfate groups to be mainly at c-6 of galactose residues. brs had a selective inhibition against hsv-1 during its attachment step, having an ic(50) lower than 2.5microg/ml, determined by plaque reduction, and a selectivity index of greater ...200919751759
challenges in designing a pragmatic clinical trial: the mixed incontinence -- medical or surgical approach (mimosa) trial experience.mixed urinary incontinence (mui) is a common, bothersome condition in women. in mui, the two subtypes of urinary incontinence that coexist are treated differently; stress urinary incontinence (sui) is primarily treated surgically while urge urinary incontinence (uui) is primarily treated medically. there is no evidence to guide the treatment for women with significant bother from both incontinence subtypes. therefore, investigators of the urinary incontinence treatment network (uitn) designed an ...200919625327
interactions of tea tannins and condensed tannins with proteins.binding parameters for the interactions of four types of tannins: tea catechins, grape seed proanthocyanidins, mimosa 5-deoxy proanthocyanidins, and sorghum procyanidins (mdp=17), with gelatin and bovine serum albumin (bsa) have been determined from isothermal titration calorimetry data. equilibrium binding constants determined for the interaction with gelatin were in the range 10(4) to 10(6) m(-1) and in the order: sorghum procyanidins > grape seed proanthocyanidins > mimosa 5-deoxy proanthocya ...201019553056
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 ...200619521469
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 ...200719517007
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 ...200819513198
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.200919505559
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.200919397984
control of the root-knot nematode, meloidogyne incognita, on mimosa (albizzia julibrissin) by chemical dips. 197219319246
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: ...200919230977
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 ...200919194289
[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 ...200819160827
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 ...200919040456
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 ...200818768625
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 ...200818515832
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 ...200718456915
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 ...200818289780
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 ...200718246717
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 ...200818178428
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 ...200818078971
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 ...200718075891
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.200718061708
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 ...200718039908
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 ...200818024416
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 ...200818024109
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 ...200718003461
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 ...200817950612
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 ...200717881339
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 ...200717848734
the effect of the performance of physical work on mimosa. 193517809533
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 ...200717768530
calcium and potassium in the motor organ of the sensitive plant: localization by ion microscopy.the ion microscope was used to study potassium and calcium distributions in the main motor organ of mimosa pudica l. the cortex of the motor organ has two cell types differing in location, structure, and ion distribution. histochemical features portrayed in ion micrographs were plainly correlated with structures seen in the light and electron microscopes.197917738090
Displaying items 1 - 100 of 269