Publications
| Title | Abstract | Year Filter | PMID(sorted ascending) Filter |
|---|
| complete mitochondrial dna sequences of six snakes: phylogenetic relationships and molecular evolution of genomic features. | complete mitochondrial dna (mtdna) sequences were determined for representative species from six snake families: the acrochordid little file snake, the bold boa constrictor, the cylindrophiid red pipe snake, the viperid himehabu, the pythonid ball python, and the xenopeltid sunbeam snake. thirteen protein-coding genes, 22 trna genes, 2 rrna genes, and 2 control regions were identified in these mtdnas. duplication of the control region and translocation of the trnaleu gene were two notable featur ... | 2005 | 16007493 |
| an ecological risk assessment of nonnative boas and pythons as potentially invasive species in the united states. | the growing international trade in live wildlife has the potential to result in continuing establishment of nonnative animal populations in the united states. snakes may pose particularly high risks as potentially invasive species, as exemplified by the decimation of guam's vertebrate fauna by the accidentally introduced brown tree snake. herein, ecological and commercial predictors of the likelihood of establishment of invasive populations were used to model risk associated with legal commercia ... | 2005 | 16022706 |
| 1,4-benzoxazin-3-one, 2-benzoxazolinone and gallic acid from calceolaria thyrsiflora graham and their antibacterial activity. | secondary metabolites, diboa, hboa, 7-oh-hboa, boa and gallic acid, were isolated and quantified from calceolaria thyrsiflora graham, a native medicinal plant of chile belonging to the scrophulariaceae family. the highest diboa contents were determined in leaves (145 mmol kg(-1) dry wt) and flowers (161 mmol kg(-1) dry wt). antibacterial activities of diboa, hboa, boa, gallic acid and infusions of flowers and leaves were determined. the phytomedicinal properties attributed to c. thyrsiflora grah ... | 2005 | 16042337 |
| outcome after occlusion of infrainguinal bypasses in the dutch boa study: comparison of amputation rate in venous and prosthetic grafts. | to compare the consequences of occlusion of infrainguinal venous and prosthetic grafts. | 2005 | 16098774 |
| biotransformation of 2-benzoxazolinone to 2-amino-(3h)-phenoxazin-3-one and 2-acetylamino-(3h)-phenoxazin-3-one in soil. | an alternative to the use of synthetic pesticides is to exploit the natural defense chemicals produced by cereals. an important class of allelochemicals is cyclic hydroxamic acids and related benzoxazolinones. a prolonged degradation experiment of the allelochemical compound from rye 2-benzoxazolinone (boa) was carried out for up to 90 d at 15 degrees c at three different concentration levels, 3, 3000, and 30,000 nmol boa g soil(-1), respectively, in a sandy loam soil. two main degradation produ ... | 2005 | 16124242 |
| ticks parasitizing reptiles in the bahamas. | two species of reptile ticks, amblyomma dissimile koch and amblyomma torrei pérez vigueras (acari: ixodidae), are reported from the bahama islands for the first time. the widespread neotropical (including the caribbean and southern florida) a. dissimile was recovered on andros island from three species of reptiles all for the first time: the andros iguana cyclura cychlura cychlura cuvier, the andros curly tail lizard leiocephalus carinatus coryi schmidt, and the andros boa epicrates striatus fow ... | 2005 | 16134982 |
| phylogeography of aedes (stegomyia) aegypti (l.) and aedes (stegomyia) albopictus (skuse) (diptera: culicidae) based on mitochondrial dna variations. | aedes (stegomyia) aegypti (l.) and aedes (stegomyia) albopictus (skuse) are the most important vectors of the dengue and yellow-fever viruses. both took advantage of trade developments to spread throughout the tropics from their native area: a. aegypti originated from africa and a. albopictus from south-east asia. we investigated the relationships between a. aegypti and a. albopictus mosquitoes based on three mitochondrial-dna genes (cytochrome b, cytochrome oxidase i and nadh dehydrogenase subu ... | 2005 | 16181519 |
| the fragment assembly string graph. | we present a concept and formalism, the string graph, which represents all that is inferable about a dna sequence from a collection of shotgun sequencing reads collected from it. we give time and space efficient algorithms for constructing a string graph given the collection of overlaps between the reads and, in particular, present a novel linear expected time algorithm for transitive reduction in this context. the result demonstrates that the decomposition of reads into kmers employed in the de ... | 2005 | 16204131 |
| hydroxamic acid content and toxicity of rye at selected growth stages. | rye (secale cereale l.) is an important cover crop that provides many benefits to cropping systems including weed and pest suppression resulting from allelopathic substances. hydroxamic acids have been identified as allelopathic compounds in rye. this research was conducted to improve the methodology for quantifying hydroxamic acids and to determine the relationship between hydroxamic acid content and phytotoxicity of extracts of rye root and shoot tissue harvested at selected growth stages. det ... | 2005 | 16222814 |
| idiopathic bilateral optic atrophy in the rhesus macaque. | to document the existence of idiopathic bilateral optic atrophy (boa) in rhesus macaque monkeys and to characterize the structural and functional consequences of this condition. | 2005 | 16249467 |
| whole plant response of lettuce after root exposure to boa (2(3h)-benzoxazolinone). | the goal of our work was to expand the knowledge about plant stress response to the allelochemical 2(3h)-benzoxazolinone (boa). we focused on physiological processes that are affected by this secondary metabolite. physiological and biochemical characteristics of plants exposed to boa help us to better understand its mode of action and open the gate to the use of allelochemicals as "natural" herbicides. measurements on photosynthesis, fluorescence, water relations, antioxidant enzymes (superoxide ... | 2005 | 16273435 |
| effects of the benzoxazolinone boa, selected degradation products and structure related pesticides on soil organisms. | the benzoxazolinone boa and the degradation products apo, aapo and hpaa, as well as four structure related compounds to boa, were tested for their lethal and sublethal effects on the collembola folsomia candida and on the carabid beetle poecilus cupreus applying validated standard laboratory methods. according to the results of the recommended risk assessment for plant protection products (eppo, 2003), boa and its structure related compounds carbendazim, benoxacor and benazolin (and additionally ... | 2006 | 16344919 |
| cyanoacrylate repair of laser in situ keratomileusis corneal flap perforation by a snake bite. | a 30-year-old man who had laser in situ keratomileusis (lasik) for myopia 1 year earlier developed a corneal perforation in the left eye from a boa constrictor. the patient presented to the emergency room, and a small corneal perforation just outside the visual axis was diagnosed within the lasik flap. cyanoacrylate adhesive was used to close the corneal perforation. the patient went on to full visual recovery with an uncorrected visual acuity of 20/20. this is the first reported case of a penet ... | 2005 | 16412943 |
| glucosides from mboa and boa detoxification by zea mays and portulaca oleracea. | incubation of zea mays cv. nicco seedlings with 6-methoxybenzoxazolin-2(3h)-one (mboa) led to a minor detoxification product hitherto only found in poaceae. this new compound was identified as 1-(2-hydroxy-4-methoxyphenylamino)-1-deoxy-beta-glucoside 1,2-carbamate (1) (methoxy glucoside carbamate) and represents an analogue to the previously described 1-(2-hydroxyphenylamino)-1-deoxy-beta-glucoside 1,2-carbamate (glucoside carbamate) from benzoxazolin-2(3h)-one (boa). in portulaca oleracea var. ... | 2006 | 16441064 |
| concentration of benzoxazinoids in roots of field-grown wheat (triticum aestivum l.) varieties. | benzoxazinones are naturally occurring secondary metabolites of some gramineae plants, responsible for their resistance to some pathogenic fungi and for their allelopathic action. six varieties of winter wheat grown in fields under organic or conventional systems and 11 old accessions were tested for two consecutive seasons and three plant development stages for the concentration in their roots of cyclic hydroxamic acids and their degradation products. this is the first report of six benzoxazino ... | 2006 | 16478211 |
| quantification of benzoxazinone derivatives in wheat (triticum aestivum) varieties grown under contrasting conditions in denmark. | three varieties of winter wheat (triticum aestivum) were grown in both conventional and organic farming systems. the contents of the benzoxazinone derivatives 2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one (dimboa), 2-beta-d-glucopyranosyloxy-4-hydroxy-7-methoxy-1,4-benzoxazin-3-one (dimboa-glc), 6-methoxybenzoxazolin-2-one (mboa), 2-hydroxy-7-methoxy-1,4-benzoxazin-3-one (hmboa), benzoxazolin-2-one (boa), and 2-hydroxy-1,4-benzoxazin-3-one (hboa) were analyzed at five growth stages (bbch 9-10, 12 ... | 2006 | 16478212 |
| effects of some benzoxazinoids on in vitro growth of cephalosporium gramineum and other fungi pathogenic to cereals and on cephalosporium stripe of winter wheat. | the benzoxazolinones benzoxazolin-2(3h)-one (boa) and 6-methoxybenzoxazolin-2(3h)-one (mboa) and selected degradation products of these compounds were examined for their in vitro antifungal activity against cephalosporium gramineum, gaeumannomyces graminis var. graminis, and fusarium culmorum. boa was also applied to the soil-incorporated inoculum of c. gramineum to test its capability of reducing cephalosporium stripe disease in winter wheat. mboa reduced the mycelial growth of g. graminis var. ... | 2006 | 16478214 |
| joint action of benzoxazinone derivatives and phenolic acids. | the joint action of binary and ternary mixtures of benzoxazinone derivatives and phenolic acids was studied using the additive dose model (adm) as reference model. the activity of fixed-ratio mixtures of phenolic acids [ferulic acid (fa), p-coumaric acid (ca), vanillic acid (va), and p-hydroxybenzoic acid (hba)] and benzoxazinone derivatives [2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one (dimboa), 6-methoxybenzoxazolin-2-one (mboa), benzoxazolin-2-one (boa), 2-aminophenol (ap), and n-(2-hydroxyph ... | 2006 | 16478216 |
| herbicidal effects of soil-incorporated wheat. | the hydroxamic acid 2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one (dimboa) and the benzoxazolinones benzoxazolin-2-one (boa) and 6-methoxybenzoxazolin-2-one (mboa) have been identified as important allelochemicals in wheat. this study examines the possibility of exploiting the allelopathic properties of wheat as a weed control strategy by cultivating wheat as a precrop and incorporating plant residues into the soil before the next crop is sown. different wheat varieties were cultivated in field p ... | 2006 | 16478217 |
| fate of benzoxazinone allelochemicals in soil after incorporation of wheat and rye sprouts. | growing cereals (especially rye), which are incorporated into the soil to increase soil fertility or organic matter content, is a common practice in crop rotation. the additional sanitizing effect of this incorporation has often been appreciated and is said to be due to leaching of benzoxazinones and subsequent formation of benzoxazolinones. in this study wheat (stakado) and rye (hacada) sprouts were incorporated into soil in amounts that simulated agricultural practice. by extraction and subseq ... | 2006 | 16478218 |
| transformation of benzoxazinones and derivatives and microbial activity in the test environment of soil ecotoxicological tests on poecilus cupreus and folsomia candida. | benzoxazinones, such as 2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one (dimboa) and 2,4-dihydroxy-1,4-benzoxazin-3-one (diboa), and benzoxazolinones, such as 6-methoxy-2-benzoxazolinone (mboa) and 2-benzoxazolinone (boa), are biologically active secondary metabolites found in cereals. because these compounds could be exploited as part of a strategy for reducing the use of synthetic pesticides, ecotoxicological tests were performed recently. in this paper, the transformation of the compounds in the ... | 2006 | 16478220 |
| ecotoxicological effects of benzoxazinone allelochemicals and their metabolites on aquatic nontarget organisms. | before natural plant allelochemicals can be exploited as biological pesticides against weeds and for disease control, more than the effect on target organisms needs to be known. this study presents results of aquatic biotests using four organisms, namely, a water flea, a freshwater alga, a soil alga, and a luminescent bacterium. the tested substances were 10 benzoxazinone derivatives, 3 of them known to be wheat allelochemicals, benzoxazolin-2(3h)-one (boa), 6-methoxybenzoxazolin-2(3h)-one (mboa ... | 2006 | 16478223 |
| qsar models for daphnia magna toxicity prediction of benzoxazinone allelochemicals and their transformation products. | the overall objective of this study is the ecotoxicological characterization of the benzoxazinone 2,4-dihydroxy-7-methoxy-1,4-benzoxazin-3-one (dimboa), the benzoxazolinones benzoxazolin-2-one (boa) and 6-methoxybenzoxazolin-2-one (mboa), and their transformation products: phenoxazinones 2-acetylamino-7-methoxy-3h-phenoxazin-3-one (aampo), 2-acetylamino-3h-phenoxazin-3-one (aapo), 2-amino-7-methoxy-3h-phenoxazin-3-one (ampo), and 2-amino-3h-phenoxazin-3-one (apo); aminophenol 2-aminophenol ap); ... | 2006 | 16478224 |
| early determination of the reproductive number for vector-borne diseases: the case of dengue in brazil. | to evaluate a new method of deriving the reproductive number for vector-borne diseases from the early epidemic curves for vector-borne diseases with incubations in the vectors and in the hosts. | 2006 | 16553913 |
| endoscopic examination of snakes by access through an air sac. | sixteen boa constrictors (boa constrictor), three royal pythons (python regius) and 15 burmese pythons (python molurus bivittatus) were examined endoscopically by access through the air sac. the snakes were immobilised in a ventral position using a half-open anaesthetic system with assisted ventilation and a mixture of isoflurane and oxygen. the rigid endoscope was introduced percutaneously and the internal structure of the lungs and the air sac, and the shape, size and external surface of the l ... | 2006 | 16565339 |
| quantitation of 1,4-benzoxazin-3-ones in maize by gas-liquid chromatography. | a gas-liquid chromatographic (glc) procedure is reported for the quantitation of the trimethylsilyl (tms) derivatives of substituted 2-hydroxy-2h-1,4-benzoxazin-3(4h)-ones (2-hydroxy-2h-1,4-benzoxazin-3(4h)-one[hboa]; 2-hydroxy-7-methoxy-2h-1,4-benzoxazin-3(4h)-one[hmboa];2,4- dihydroxy-2h-1,4-benzoxazin-3(4h)-one[diboa]; 2,4-dihydroxy-7-methoxy-2h-1,4-benzoxazin-3(4h)-one[dimboa]; and 2,4-dihydroxy-7,8-dimethoxy-2h-1,4-benzoxazin-3(4h)-one[dim (2)boa]) found in maize (zea mays l.) extracts. der ... | 1979 | 16660666 |
| early stone technology on flores and its implications for homo floresiensis. | in the soa basin of central flores, eastern indonesia, stratified archaeological sites, including mata menge, boa lesa and kobatuwa (fig. 1), contain stone artefacts associated with the fossilized remains of stegodon florensis, komodo dragon, rat and various other taxa. these sites have been dated to 840-700 kyr bp (thousand years before present). the authenticity of the soa basin artefacts and their provenance have been demonstrated by previous work, but to quell lingering doubts, here we descr ... | 2006 | 16738657 |
| inclusion body disease in snakes: a review and description of three cases in boa constrictors in belgium. | inclusion body disease, a fatal disorder in boidae, is reviewed, and three cases in boa constrictors, the first reported cases in belgium, are described. the snakes showed nervous signs, and numerous eosinophilic intracytoplasmic inclusions, which are considered to be characteristic of the disease, were found in the liver and pancreas. the disease is suspected to be caused by a retrovirus, but transmission electron microscopic examinations of several tissues from one of the snakes did not reveal ... | 2006 | 16751310 |
| bsr & bhpr, boa, rcgp and bsac guidelines for management of the hot swollen joint in adults. | 2006 | 16829534 | |
| the importance of anopheles albitarsis e and an. darlingi in human malaria transmission in boa vista, state of roraima, brazil. | in several districts of boa vista, state of roraima, brazil we found anopheles (nyssorhynchus) albitarsis e to be the primary vector of human malaria parasites, and during 2001-2002 it was significantly more abundant than an. darlingi (p < 0.001). other species sampled were an. (nys.) braziliensis, an. (ano.) peryassui, an. (nys.) nuneztovari, an. (nys.) oswaldoi s.l., and an. (nys.) triannulatus. as determined by the elisa technique an. darlingi had a higher overall infection rate (2.1%) compar ... | 2006 | 16830709 |
| sperm motility parameters to evaluate the seminal quality of boa constrictor occidentalis, a threatened snake species. | semen quality analysis constitutes a powerful tool to evaluate the fertility potential of males in threatened species. the argentine boa constrictor or lampalagua (boa constrictor occidentalis) is a threatened snake species and has been included in appendix i of cites. the objective of this work is to characterize the sperm of b. c. occidentalis on the bases of dynamic parameters to improve this species conservation. dynamic parameters were measured in sperm samples using videomicroscopy and ima ... | 2007 | 16857223 |
| automated global structure extraction for effective local building block processing in xcs. | learning classifier systems (lcss), such as the accuracy-based xcs, evolve distributed problem solutions represented by a population of rules. during evolution, features are specialized, propagated, and recombined to provide increasingly accurate subsolutions. recently, it was shown that, as in conventional genetic algorithms (gas), some problems require efficient processing of subsets of features to find problem solutions efficiently. in such problems, standard variation operators of genetic an ... | 2006 | 16903797 |
| secondary prevention of fragility fractures: are we following the guidelines? closing the audit loop. | the aim of this study was to determine whether orthopaedic surgeons follow the british orthopaedic association (boa) guidelines for secondary prevention of fragility fractures. | 2006 | 17002853 |
| recent results: biomarkers of aging. | this communication reviews recent papers attempting to identify biomarkers of aging (boa). a boa is a biological parameter that will predict functional capability at some later age. few, if any, boa have been found and this review describes the recent search for boa. among others that have been put forward are il6 and other markers of inflammation, allostatic load, and corticosterone, which have been described primarily in humans. work in model systems as well as theoretical work are also review ... | 2006 | 17071038 |
| 2-benzoxazolinone (boa) induced oxidative stress, lipid peroxidation and changes in some antioxidant enzyme activities in mung bean (phaseolus aureus). | 2-benzoxazolinone (boa), a well-known allelochemical with strong phytotoxicity, is a potential herbicidal candidate. the aim of the present study was to determine whether phytotoxicity of boa is due to induction of oxidative stress caused by generation of reactive oxygen species (ros) and the changes in levels of antioxidant enzymes induced in response to boa. effect of boa was studied on electrolyte leakage, lipid peroxidation (lp), hydrogen peroxide (h(2)o(2)) generation, proline (pro) accumul ... | 2006 | 17107811 |
| effect of 2-benzoxazolinone (boa) on seedling growth and associated biochemical changes in mung bean (phaseolus aureus). | boa (2-benzoxazolinone) is a potent phytotoxin present in several graminaceous crops such as rye, maize and wheat. due to its wide range of phytotoxicity, it is considered as a potential pesticide. a study was conducted to explore the impact of boa on the radicle and plumule elongation of mung bean (phaseolus aureus) and associated changes in the macromolecular content - proteins and carbohydrates - and activities of enzymes like amylases, proteases, polyphenol oxidases and peroxidases. boa sign ... | 2006 | 17137118 |
| characteristics of hammer stones and anvils used by wild bearded capuchin monkeys (cebus libidinosus) to crack open palm nuts. | capuchins living in boa vista (piauì, brazil) crack open hard palm nuts on hard, level surfaces (anvils) using stones (hammers) as percussive tools. this activity leaves diagnostic physical remains: distinctive shallow depressions (pits) on the surface of the anvil, cracked shells, and stone hammers on the anvil. to initiate comparison of percussive stone tool use and interpretation of the artifacts it produces across capuchins, chimpanzees, and hominins, we describe a sample of the anvils and h ... | 2007 | 17177182 |
| zea mays: benzoxazolinone detoxification under sulfur deficiency conditions--a complex allelopathic alliance including endophytic fusarium verticillioides. | benzoxazolinone detoxification is similar in plants grown under sulfur deficiency conditions and in control plants grown with an optimal s supply. however, when s-deficient plants were treated with metolachlor before benzoxazolin-2(3h)-one (boa) incubation, detoxification was reduced, as indicated by a lower accumulation of the detoxification products boa-6-o-glucoside and glucoside carbamate and by a loss of boa-6-oh glucosyltransfease activity. root colonizing microorganisms and the endophytic ... | 2007 | 17200890 |
| haematopoiesis in snakes (ophidia) in early postnatal development. | the occurrence of haematopoiesis has been studied in various parts of the spine and in the ribs in four species of snakes (boa constrictor l., elaphe guttata l., lamprophis fulaginosus boie., bothrops jararaca wied.) from hatching until 150 days of postnatal development. marrow spaces are formed by chondrolysis with various time frames depending on the studied species. marrow cells egress to the general circulation in two ways: via migration through the endothelial cells lining the venous sinuse ... | 2007 | 17225172 |
| position around a tree: consequences for pheromone detection. | the air flow pattern expected around a cylindrical object such as a tree in slow wind, is predicted from fluid mechanics to have areas of faster flow (upwind) and slower recirculating flow with eddies (downwind). an organism located on the surface of a tree would experience different flow depending on its circumferential position. if that organism was searching for a chemical signal, such as a pheromone plume, it might maximize its probability of chemodetection by placing itself in areas of grea ... | 2007 | 17252213 |
| the skull of the round island boa, casarea dussumieri schlegel, based on high-resolution x-ray computed tomography. | the skull of the rare bolyeriid snake casarea dussumieri is described in detail based on high-resolution x-ray ct data. bolyeriids are unique in their possession of a separate suborbital ossification and a maxilla subdivided into two movably jointed parts, which may be the result of paedomorphic truncation of the development of the maxilla from multiple ossification centers. comparison of the skull of c. dussumieri to that of larger booids suggests additional paedomorphic features including redu ... | 2007 | 17309080 |
| seasonal influence on hematologic values and hemoglobin electrophoresis in brazilian boa constrictor amarali. | as ectothermic animals, snakes depend exclusively on the environment for proper temperature maintenance, which may greatly influence their activity. twenty-five adult boa constrictor amarali snakes maintained in captivity were used to determine the influence of seasons on their hematologic values and electrophoretic profile of hemoglobin. a complete blood cell count (cbc) and examination for hemoparasites were performed in the summer and winter of 2004. hemoglobin was stored for later electropho ... | 2006 | 17315433 |
| associations between dengue and combinations of weather factors in a city in the brazilian amazon. | dengue has become the most important endemic disease in brazil. the amazonian state of roraima has one of the highest incidence rates of dengue in the country. the objective of this study was to determine whether significant temporal relationships exist between the number of reported dengue cases and short-term climate measures for the city of boa vista, the capital of roraima. if such relationships exist, that suggests that it may be possible to predict dengue case numbers based on antecedent c ... | 2006 | 17316484 |
| geographical distribution of genetically determined types of nezara viridula (l.) (heteroptera: pentatomidae) in brazil. | nezara viridula (l.) is a cosmopolitan and polymorphic pentatomid. several genetically determined types have been described due to body color variation in adults. a survey covering 13 brazilian states was conducted during 2001 and 2002 to determine the geographical distribution of the main types. type g (smaragdula--body entirely green), the most common, showed a wide distribution, from south to north (latitude 2 degrees 49' n to 31 degrees 46' s), except in the central-west region. type o (torq ... | 2006 | 17348127 |
| three new alpha-globin variants: hb itapira [alpha30(b11)glu-->val (alpha1)], hb bom jesus da lapa [alpha30(b11)glu-->ala (alpha1)] and hb boa esperança [alpha16(a14)lys-->thr (alpha2)]. | three novel alpha-globin variants were found during a screening program for hemoglobinopathies in blood donors at the unicamp hematology and hemotherapy center, campinas, state of são paulo, southeastern brazil. they were named for the town of origin of the carrier as hb itapira [alpha30(b11)glu-->val], hb bom jesus da lapa [alpha30(b11)glu-->ala] and hb boa esperança [alpha16(a14)lys-->thr]. hb itapira, like hb bom jesus da lapa, shows an electrophoretic mobility similar to that of hb s [beta6( ... | 2007 | 17486496 |
| achaete-scute homolog-1 linked to remodeling and preneoplasia of pulmonary epithelium. | the basic helix-loop-helix protein achaete-scute homolog-1 (ash1) is involved in lung neuroendocrine (ne) differentiation and tumor promotion in sv40 transgenic mice. constitutive expression of human ash-1 (hash1) in mouse lung results in hyperplasia and remodeling that mimics bronchiolization of alveoli (boa), a potentially premalignant lesion of human lung carcinomas. we now show that this is due to sustained cellular proliferation in terminal bronchioles and resistance to apoptosis. throughou ... | 2007 | 17507989 |
| innate defensive behaviour and panic-like reactions evoked by rodents during aggressive encounters with brazilian constrictor snakes in a complex labyrinth: behavioural validation of a new model to study affective and agonistic reactions in a prey versus predator paradigm. | defensive behaviour has been extensively studied, and non-invasive methodologies may be interesting approaches to analyzing the limbic system function as a whole. using experimental models of animals in the state of anxiety has been fundamental in the search for new anxiolytic and antipanic compounds. the aim of this present work is to examine a new model for the study of affective behaviour, using a complex labyrinth consisting of an arena and galleries forming a maze. furthermore, it aims to c ... | 2007 | 17604117 |
| investigation of rice transgene flow in compass sectors by using male sterile line as a pollen detector. | rice is the most important staple food in the world. the rapid development of transgenic rice and its future commercialization have raised concerns regarding transgene flow and its potential environmental risk. it is known that rice is a self-pollinated crop; the outcrossing rate between common cultivars is generally less than 1%. in order to improve the detection sensitivity of rice transgene flow, a male sterile (ms) line boa with a high outcrossing rate was used as a pollen detector in this s ... | 2007 | 17622509 |
| a hookworm problem in a boa constrictor. | 1962 | 17649369 | |
| [survey of cnidarian accident records in some beaches of the coast of pernambuco (brazil)]. | cnidarians are among the most venomous organisms known to man. they are characterized by stinging cells called cnidocytes, and several species, such as the portuguese-man-of-war and the jellyfish, can cause harm to human beings. despite not attracting () much attention on the brazilian coast, the studies that have been carried out to date show that the occurrence of this kind of accident is significant. the aim of this study was to survey cnidarian related accidents with beach goers on some beac ... | 2007 | 17680074 |
| cis-jasmone induces accumulation of defence compounds in wheat, triticum aestivum. | liquid phase extraction (lpe) and vapor phase extraction (vpe) methodologies were used to evaluate the impact of the plant activator, cis-jasmone, on the secondary metabolism of wheat, triticum aestivum, var. solstice. lpe allowed the measurement of benzoxazinoids, i.e. 2,4-dihydroxy-7-methoxy-2h-1,4-benzoxazin-3(4h)-one (dimboa), 2-hydroxy-7-methoxy-1,4-benzoxazin-3-one (hmboa) and 6-methoxy-benzoxazolin-2-one (mboa), and phenolic acids such as trans-p-coumaric acid, syringic acid, p-hydroxyben ... | 2008 | 17681563 |
| managing osteoporosis in patients with fragility fractures: did the british orthopaedic association guidelines have any impact? | the incidence of fragility fractures could double in the next 50 years. effective treatments for osteoporosis exist and the british orthopaedic association (boa) has guidelines governing how to manage underlying osteoporosis in patients with fragility fractures. this study assessed how well two trauma units treat underlying osteoporosis and whether the boa guidelines made any impact. | 2007 | 17688724 |
| keratoacanthoma of the spectacle in a boa constrictor. | a royal boa constrictor presented with retained spectacle of the right eye and a tumor-like appearance of the left eye. | 2007 | 17760713 |
| interactions of bacillus mojavensis and fusarium verticillioides with a benzoxazolinone (boa) and its transformation product, apo. | the benzoxazolinones, specifically benzoxazolin-2(3h)-one (boa), are important transformation products of the benzoxazinones that can serve as allelochemicals providing resistance to maize from pathogenic bacteria, fungi, and insects. however, maize pathogens such as fusarium verticillioides are capable of detoxifying the benzoxazolinones to 2-aminophenol (ap), which is converted to the less toxic n-(2-hydroxyphenyl) malonamic acid (hpma) and 2-acetamidophenol (hpaa). as biocontrol strategies th ... | 2007 | 17896139 |
| the meaning of the rubella vaccine for pregnant women. | the research was aimed at describing the meaning of the rubella vaccine to women who were discovered pregnant after having received the measles-rubella vaccine during the 2001 campaign against rubella, and who lived in 10 cities within the region of dir xx from são joão da boa vista. the theory of social representation was used as a reference framework for the research, and data were collected through the collective subject discourse technique, involving 18 women who either were pregnant or beca ... | 2007 | 17923966 |
| the "pseudo-craniovertebral articulation" in the deep-sea fish stomias boa (teleostei: stomiidae). | many predatory deep-sea fishes show highly specialized modifications of their feeding apparatus, e.g., elongate jaws studded with long daggerlike teeth, often combined with a very distensible stomach, to be capable of swallowing relatively large prey. these striking features can be observed in members of the marine teleost family stomiidae. the present study gives a detailed morphological description of the mesopelagic predatory fish, stomias boa, based on a combined approach of clearing and dou ... | 2008 | 17926347 |
| mutualism, reciprocity, or kin selection? cooperative rescue of a conspecific from a boa in a nocturnal solitary forager the gray mouse lemur. | predator mobbing is a widespread phenomenon in many taxa but the evolution of cooperative mobbing as an adaptive behavior is still subject to debate. here, we report evidence for cooperative predator defense in a nocturnal solitarily foraging primate, the gray mouse lemur (microcebus murinus). several mouse lemurs mobbed a snake that held a non-related male conspecific until he could escape. evolutionary hypotheses to explain cooperative mobbing include (1) by-product mutualism, when individuals ... | 2008 | 17972271 |
| host-synthesized secondary compounds influence the in vitro interactions between fungal endophytes of maize. | maize produces a suite of allelopathic secondary metabolites, the benzoxazinoids. 2,4-dihydroxy-7-methoxy-2h-1,4-benzoxazin-3-one and 2,4-dihydroxy-2h-1,4-benzoxazin-3-one reside as glucosides in plant tissue and spontaneously degrade to 6-methoxy-2-benzoxazolinone (mboa) and 2-benzoxazolinone (boa) upon plant cell disruption. several maize-associated fungi in the genus fusarium can metabolize mboa and boa. boa tolerance levels in 10 species of fusarium and in the maize endophytes nigrospora ory ... | 2008 | 17993551 |
| affinity and diversity indices for anopheline immature forms. | as for the entire amazon region, malaria continues to be a major health public problem in roraima that presented an annual parasitic index of 85.4 in 2005, the highest in brazil. information on anopheline breeding sites is an essential component in malaria control strategies. aiming to contribute to the limited knowledge on anopheline immature forms in roraima, collections and breeding site observations were performed in 10 breeding sites around the capital city boa vista. collections were carri ... | 2007 | 18026638 |
| occurrence of toxorhynchites guadeloupensis (dyar knab) in oviposition trap of aedes aegypti (l.) (diptera: culicidae). | toxorhynchites guadeloupensis (dyar knab), a poorly known mosquito species, was observed preying upon aedes aegypti (l.) larvae, in an oviposition trap placed for routine dengue entomological surveillance, during 2003-2004 in the urban area of boa vista, roraima, brazil. this is the first report for tx. guadeloupensis using ae. aegypti oviposition traps as breeding places. this finding may have important consequences in the epidemiology and local dengue control since ae. aegypti density is a bas ... | 2007 | 18060310 |
| development of a pressurized liquid extraction-solid-phase extraction followed by liquid chromatography-electrospray ionization tandem mass spectrometry method for the quantitative determination of benzoxazolinones and their degradation products in agricultural soil. | a new analytical method for the quantitative determination of benzoxazolinones and their degradation products in agricultural soils based on the use of pressurized liquid extraction (ple) followed by solid-phase extraction (spe) and then instrumental determination using liquid chromatography-electrospray ionization tandem mass spectrometry (lc-esi-ms-ms) is described. using this method, the characterization, separation and quantitative detection of a mixture of two benzoxazolinones, benzoxazolin ... | 2008 | 18096177 |
| a new species of hepatozoon (apicomplexa: adeleorina) from python regius (serpentes: pythonidae) and its experimental transmission by a mosquito vector. | hepatozoon ayorgbor n. sp. is described from specimens of python regius imported from ghana. gametocytes were found in the peripheral blood of 43 of 55 snakes examined. localization of gametocytes was mainly inside the erythrocytes; free gametocytes were found in 15 (34.9%) positive specimens. infections of laboratory-reared culex quinquefasciatus feeding on infected snakes, as well as experimental infection of juvenile python regius by ingestion of infected mosquitoes, were performed to complet ... | 2007 | 18163356 |
| population structure of an endemic vulnerable species, the jamaican boa (epicrates subflavus). | the jamaican boa (epicrates subflavus; also called yellow boa) is an endemic species whose natural populations greatly and constantly declined since the late 19th century, mainly because of predation by introduced species, human persecution, and habitat destruction. in-situ conservation of the jamaican boa is seriously hindered by the lack of information on demographic and ecological parameters as well as by a poor understanding of the population structure and species distribution in the wild. h ... | 2008 | 18179440 |
| knee alignment differences between chinese and caucasian subjects without osteoarthritis. | despite the lower prevalence of obesity (a known risk factor for osteoarthritis (oa)), the prevalence of lateral tibiofemoral oa is higher in chinese communities compared with caucasian communities. one potential explanation is the difference in knee alignment between the two populations. we measured various knee alignment indices among chinese and caucasians and assessed whether these indices were different between the two racial groups. | 2008 | 18230630 |
| novel patterns of historical isolation, dispersal, and secondary contact across baja california in the rosy boa (lichanura trivirgata). | mitochondrial dna (mtdna) sequence variation was examined in 131 individuals of the rosy boa (lichanura trivirgata) from across the species range in southwestern north america. bayesian inference and nested clade phylogeographic analyses (ncpa) were used to estimate relationships and infer evolutionary processes. these patterns were evaluated as they relate to previously hypothesized vicariant events and new insights are provided into the biogeographic and evolutionary processes important in baj ... | 2008 | 18248742 |
| diphtheroid colitis in a boa constrictor infected with amphibian entamoeba sp. | a female boa (boa constrictor) from a zoological collection was submitted for necropsy after sudden death. prominent pathological findings included a diphtheroid colitis, endoparasitism, focal pneumonia and inclusion bodies typical for inclusion body disease (ibd). in the colon entamoebae were identified, which differed in size and distribution from entamoeba invadens. gene sequence analysis of the 18s ribosomal rna revealed 100% similarity with an entamoeba species from the african bullfrog (py ... | 2008 | 18291588 |
| hyperparasitism in amblyomma rotundatum (acari: ixodidae). | in the present study, we report a case of hyperparasitism in amblyomma rotundatum. during examination of live ticks immediately after collecting them from boa constrictor snakes held in a reptile facility in mossoró, rn, northeastern brazil, 1 unengorged tick female was seen attached to the venter of a partially engorged female. the hypostome and chelicerae of the unengorged female had penetrated the integument of the partially engorged female to the level of the basis capitulli and the palps we ... | 2007 | 18314708 |
| characterization of a biphasic neoplasm in a madagascar tree boa (sanzinia madagascariensis). | we describe a disseminated biphasic neoplasm in a young madagascar tree boa utilizing transmission electron and light microscopy. discrete neoplastic cells identified within pulmonary capillaries and hepatic sinusoids represented the leukemic phase. spindloid cells represented the sarcomatous phase, which comprised hepatic and fat body nodules. a zone of transition of the neoplastic cells, from discrete to spindloid, was noted along the periphery of the hepatic and fat body nodules. ultrastructu ... | 2008 | 18424844 |
| metastatic bone disease: the requirement for improvement in a multidisciplinary approach. | the purpose of this study was to assess the referral system, clinical notes and radiographs of patients presenting with metastatic disease of long bones. the study demonstrated that 93% of oncologists did not use a reliable scoring system to assess risk of pathological fracture, and 60% felt an improvement in communication was required. notes and radiographs were reviewed for 37 patients presenting with femoral metastatic lesions. sixteen patients had a mirels' score of greater than 8. four pati ... | 2009 | 18431570 |
| [effect of collect time on communities of epigaeic ants (hymenoptera: formicidae) in areas of eucalyptus cloeziana and cerrado]. | this study aimed at evaluating the effect of collect time (day and night) on ant fauna attracted to baits in areas of eucalyptus cloeziana (myrtaceae) and cerrado. the ants were collected in fazenda boa vista, mannesmann fi - el florestal ltda, paineiras, minas gerais state. eigthteen sample units were collected: 12 in e. cloezina and six in cerrado. each sample unit consisted of three plots (25 x 35 m each). the plot consisted of 34 baits distributed in a grid pattern at 5 m intervals. the samp ... | 2008 | 18506289 |
| effects of four benzoxazinoids on gibberellin-induced alpha-amylase activity in barley seeds. | germination of barley seeds was inhibited by 2,4-dihydroxy-7-methoxy-2h-1,4-benzoxazin-3(4h)-one (dimboa) and 2,4-dihydroxy-2h-1,4-benzoxazin-3(4h)-one (diboa) at concentrations greater than 0.03mmol/l, and 6-methoxy-benzoxazolin-2(3h)-one (mboa) and benzoxazolin-2(3h)-one (boa) at concentrations greater than 0.1mmol/l. these benzoxazinoids also inhibited the induction of alpha-amylase activity in the barley seeds, and inhibited gibberellin-induced alpha-amylase activity in de-embryonated barley ... | 2008 | 18538892 |
| [geographic distribution and epidemiological features of american tegumentary leishmaniasis in old rural settlements in paraná state, southern brazil]. | this study analyzes the epidemiology of american tegumentary leishmaniasis in the municipalities of the central north, central west, and northwest mesoregions of paraná state, brazil. diagnosis of american tegumentary leishmaniasis cases was performed at the state university in maringá from 1987 to 2004. according to the probable site of infection, cases were classified as autochthonous (infection inside the household domain) or allochthonous (outside the household domain). municipalities with t ... | 2008 | 18545755 |
| occurrence of cryptosporidium sp. in snakes in japan. | the aim of this study was to determine the prevalence of cryptosporidium in snakes in japan. fecal samples or intestinal contents of 469 snakes, consisting of five species, were analyzed and cryptosporidium oocysts were detected only from the japanese grass snake rhabdophis tigrinus. the mean prevalence of cryptosporidium sp. in japanese grass snakes was approximately 26% in the region studied. histopathological observations revealed that the organism caused proliferative enteritis in the small ... | 2008 | 18548279 |
| [abundance and seasonality of diptera (insecta) in a poultry house in the northeast region of the state of são paulo, brazil]. | modern production systems accommodate broody hens in high densities, leading to the accumulation of excrement under the cages. this substrate is excellent for the development of sinantropic flies. thus, the accomplishment of surveys in these places becomes essential, in order to plan better strategies of control. the present work aimed at studying the entomofauna and the seasonality of the species of dipterous present in the crisdan poultry house located in the municipality of são joão da boa vi ... | 2008 | 18554436 |
| influence of clay incorporation on the physical properties of polyethylene/brazilian clay nanocomposites. | high density polyethylene/brazilian clay nanocomposites were prepared by the melt intercalation technique. a montmorillonite sample from boa vista/pb, northeast of brazil, was organically modified with esthearildimethylammonium chloride (praepagen wb) quaternary ammonium salt. the unmodified and modified clays with the quaternary ammonium salt were introduced in 1, 2, 3 and 5 wt% in a pe polymer matrix. the dispersion analysis and the interlayer distance of the clay particles were obtained by x- ... | 2008 | 18572596 |
| the natural compound benzoxazolin-2(3h)-one selectively retards cell cycle in lettuce root meristems. | benzoxazolin-2(3h)-one (boa) is a natural plant product that is phytotoxic to target plant species, inhibiting germination and growth and causing oxidative damage. we investigated its effects on the root meristems of seedlings of lettuce (lactuca sativa) by means of light and transmission electron microscopy, flow cytometry, and conventional determination of mitotic index. flow cytometry analyses and mitotic index showed a retard of cell cycle in boa-treated meristems with selective activity at ... | 2008 | 18597799 |
| stable isotopes may provide evidence for starvation in reptiles. | previous studies have attempted to correlate stable isotope signatures of tissues with the nutritional condition of birds, mammals, fishes, and invertebrates. unfortunately, very little is known about the relationship between food limitation and the isotopic composition of reptiles. we examined the effects that starvation has on delta13c and delta15n signatures in the tissues (excreta, carcass, scales, and claws) of six, distantly related squamate reptiles (gaboon vipers, bitis gabonica; ball py ... | 2008 | 18613003 |
| physical properties of palm fruits processed with tools by wild bearded capuchins (cebus libidinosus). | habitually, capuchin monkeys access encased hard foods by using their canines and premolars and/or by pounding the food on hard surfaces. instead, the wild bearded capuchins (cebus libidinosus) of boa vista (brazil) routinely crack palm fruits with tools. we measured size, weight, structure, and peak-force-at-failure of the four palm fruit species most frequently processed with tools by wild capuchin monkeys living in boa vista. moreover, for each nut species we identify whether peak-force-at-fa ... | 2008 | 18618602 |
| [analysis of specificity and sensitivity of polish "universal newborn hearing screening program"]. | polish national universal hearing screening program (pnpuhs) has got three-level structure. audiology outpatient clinic in the childrens' memorial health institute in warsaw is a center of the second and the third level. newborns are referred to us from neonatal units, the first level in the program. we found that referred children, both with unilateral as well as bilateral referral rating in teoae, show a high proportion of false positive results. | 2008 | 18637428 |
| fatty acid analyses may provide insight into the progression of starvation among squamate reptiles. | fasting-induced changes in fatty acid composition have been reported to occur within the body lipids of several types of animals; however, little is known about the changes in fatty acid profiles exhibited by reptiles subjected to prolonged fasting. this study characterizes the fatty acid profiles of six reptile species subjected to sublethal periods of fasting lasting 0, 56, 112, and 168 days. analyses of fatty acid methyl esters (fames) conducted on the total body lipids of rattlesnakes (crota ... | 2008 | 18657629 |
| oviduct adenocarcinoma in some species of captive snakes. | this article reports 5 cases of oviduct adenocarcinoma in adult captive snakes from smithsonian's national zoological park. this neoplasm was found in 1 of each of the following species: emerald tree boa (corallus caninus), amazonian tree boa (corallus enydris enydris), burmese rock python (python molurus bivittatus), northern pine snake (pituophis melanoleucus melanoleucus), and corn snake (elaphe guttata). grossly, tan to red firm masses were found within oviducts in 3 cases. in an additional ... | 2008 | 18725476 |
| activity of hydroxamic acids from secale cereale against the plant-parasitic nematodes meloidogyne incognita and xiphinema americanum. | abstract cyclic hydroxamic acids are secondary metabolites found in the family poaceae and have been implicated in the allelopathy of rye (secale cereale). the toxicity of these compounds against plant-parasitic nematodes is unknown. diboa (2,4-dihydroxy-(2h)-1,4-benzoxazin-3(4h)-one), dimboa (2,4-hydroxy-7-methoxy-(2h)-1,4-benzoxazin-3(4h)-one), and their degradation products boa (benzoxazolin-2(3h)-one) and mboa (6-methoxy-benzoxazolin-2(3h)-one) were screened in vitro against meloidogyne inco ... | 2005 | 18943462 |
| [dental caries in 12-year-old schoolchildren from boa vista, roraima state, brazil]. | 2008 | 18949247 | |
| blood testosterone in rats: correlation of the level of individual anxiety and its impairment after "death threat". | studies of identical groups of male wistar rats after preliminary selection to give groups including extreme behavioral types with low and high rankings on the anxiety scale showed that blood testosterone concentrations in intact rats (controls) correlated negatively with anxiety ranking, i.e., minimal hormone concentrations (no greater than 5 nm) corresponded to high levels of anxiety - with a predominance of passive defensive behavioral components on testing. short-term exposure to a "death th ... | 2008 | 18975099 |
| dengue virus in aedes aegypti larvae and infestation dynamics in roraima, brazil. | to detect the presence of dengue virus in larval forms of aedes aegypti and to associate vector presence with rainfall and incidence of disease. | 2008 | 19031506 |
| physicochemical, antimicrobial and anti-inflammatory evaluation of fixed oil from boa constrictor. | boa constrictor is one of the snakes found in the riverine areas of nigeria, especially in the niger delta regions. the fat obtained from the snake is used ethno-medicinally for the treatment of burns and inflammatory conditions. the purpose of this study was to validate the traditional use of this crude fat and oil. the fat obtained from the boa snake was subjected to some physiochemical screening tests. a systematic chemical and antimicrobial investigation was carried out using some bacterial ... | 2008 | 19051590 |
| granulomatous myocarditis and coelomic effusion due to salmonella enterica arizonae in a madagascar dumerili's boa (acrantophis dumerili, jan. 1860). | a granulomatous myocarditis due to salmonella enterica arizonae was diagnosed in an 8-year-old madagascar dumerili's boa (acrantophis dumerili) based on positive coelomic effusion culture, ultrasound visualization of abnormal ventricular myocardium, necropsy and cardiac histological examination. | 2003 | 19081357 |
| molecular characterisation of cryptosporidium isolates from pet reptiles. | in this study, we investigated the presence of cryptosporidium in 171 faecal samples from reptiles commonly used as pet animals. these include lizards belonging to the genera eublepharis, pogona, chlamydosaurus, hemiteconyx, teratoscincus, tiliqua, iguana, and chamaeleo, snakes of the genera lampropeltis, elaphe, python, boa and corallus, and tortoises belonging to the genera testudo and kinixys. cryptosporidium oocysts were detected by immunofluorescence using a commercially available kit and c ... | 2009 | 19101086 |
| improving operation notes to meet british orthopaedic association guidelines. | operation notes are an important part of medical records for clinical, academic and medicolegal reasons. this study audited the quality of operative note keeping for total knee replacements against the standards set by the british orthopaedic association (boa). | 2009 | 19102825 |
| surface structure and frictional properties of the skin of the amazon tree boa corallus hortulanus (squamata, boidae). | the legless locomotion of snakes requires specific adaptations of their ventral scales to maintain friction force in different directions. the skin microornamentation of the snake corallus hortulanus was studied by means of scanning electron microscopy and the friction properties of the skin were tested on substrates of different roughness. skin samples from various parts of the body (dorsal, lateral, ventral) were compared. dorsal and lateral scales showed similar, net-like microornamentation a ... | 2009 | 19137315 |
| evidence for alteration of fungal endophyte community assembly by host defense compounds. | * plant defense compounds are common stressors encountered by endophytes. fungi readily evolve tolerance to these compounds, yet few studies have addressed the influence of intraspecific variation in defense compound production on endophyte colonization. we compared the influence of defense compound production on the composition of fungal endophyte communities in replicated field experiments. * maize (zea mays) produces benzoxazinoids (bxs), compounds with antifungal byproducts persistent in the ... | 2009 | 19170900 |
| distribution of potential suitable hammers and transport of hammer tools and nuts by wild capuchin monkeys. | selection and transport of objects to use as tools at a distant site are considered to reflect planning. ancestral humans transported tools and tool-making materials as well as food items. wild chimpanzees also transport selected hammer tools and nuts to anvil sites. to date, we had no other examples of selection and transport of stone tools among wild nonhuman primates. wild bearded capuchins (cebus libidinosus) in boa vista (piauí, brazil) routinely crack open palm nuts and other physically we ... | 2009 | 19172379 |
| safety assessment and detection method of genetically modified chinese kale (brassica oleracea cv. alboglabra ). | sporamins are tuberous storage proteins and account for 80% of soluble protein in sweet potato tubers with trypsin-inhibitory activity. the expression of sporamin protein in transgenic chinese kale (line boa 3-1) conferred insecticidal activity toward corn earworm [ helicoverpa armigera (hubner)] in a previous report. in this study, we present a preliminary safety assessment of transgenic chinese kale boa 3-1. bioinformatic and simulated gastric fluid (sgf) analyses were performed to evaluate th ... | 2009 | 19216530 |
| plastic litter on an urban beach---a case study in brazil. | beaches are subject to solid waste contamination at the strandline. litter depositional dynamics is influenced by specific beach morphology and sources of solid wastes. the amount of items on the strandline of boa viagem beach (recife, brazil) was evaluated during dry and rainy seasons of 2005 to characterize their sources and depositional patterns. the strandline was surveyed once a month to count and classify all visible solid waste items within a belt-transect. plastics were used for detailed ... | 2009 | 19220998 |
| evaluation of noninvasive oscillometric blood pressure monitoring in anesthetized boid snakes. | to determine the accuracy of a noninvasive oscillometric monitor in the measurement of arterial blood pressure in anesthetized boid snakes. | 2009 | 19250041 |
| ticks infesting amphibians and reptiles in pernambuco, northeastern brazil. | ticks infesting amphibians and reptiles in the state of pernambuco are reviewed, based on the current literature and new collections recently carried out by the authors. to date, three tick species have been found on amphibians and reptiles in pernambuco. amblyomma fuscum appears to be exclusively associated with boa constrictor, its type host. amblyomma rotundatum has a relatively low host-specificity, being found on toads, snakes, and iguana. amblyomma dissimile has been found on a lizard and ... | 2008 | 19265581 |
| recombinant expression and affinity purification of snake venom gland parvalbumin in escherichia coli. | parvalbumins (pv) are small, acidic, water soluble and calcium-binding proteins generally present in muscular and nervous tissues. in the present study, we identified and characterized a cdna clone encoding pv, named aplpv, from a snake (agkistrodon piscivorus leucostoma) venom gland cdna library. aplpv belongs to ef-hand proteins with six alpha-helices constituting three ef-hand domains. the deduced amino acid sequence of aplpv is 91% and 68% identical to the previously characterized pvs of boa ... | 2009 | 19275943 |
| fdb2 encodes a member of the arylamine n-acetyltransferase family and is necessary for biotransformation of benzoxazolinones by fusarium verticillioides. | to clone and characterize genes from the mycotoxigenic fungus, fusarium verticillioides, which are associated with its ability to biotransform allelopathic benzoxazolinones produced by maize, wheat, and rye. | 2009 | 19302487 |
| dose-response-a challenge for allelopathy? | the response of an organism to a chemical depends, among other things, on the dose. nonlinear dose-response relationships occur across a broad range of research fields, and are a well established tool to describe the basic mechanisms of phytotoxicity. the responses of plants to allelochemicals as biosynthesized phytotoxins, relate as well to nonlinearity and, thus, allelopathic effects can be adequately quantified by nonlinear mathematical modeling. the current paper applies the concept of nonli ... | 2005 | 19330161 |
| nutritional, fatty acid and triacylglycerol profiles of castanea sativa mill. cultivars: a compositional and chemometric approach. | four portuguese chestnut cultivars from the "castanha da terra fria" protected designation of origin were selected: aveleira, boa ventura, judia and longal. the nutritional parameters (moisture, fat, protein, carbohydrates, ash and energy) as well as fibers (neutral detergent fiber, acid detergent fiber, acid detergent lignin and cellulose) were characterized. moisture was the major component followed by carbohydrates, protein and fat, resulting in an energetic value lower than 195 kcal/100 g of ... | 2009 | 19334758 |