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| Registros recuperados: 16 | |
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| Almeida-Silva,Lina M.; Brescovit,Antonio D.; Dias,Sidclay Calaça. |
| A new species of Goeldia Keyserling, 1891 is described. Goeldia is the only genus of Titanoecidae with species in the Neotropical region and includes eight species diagnosed by the presence of a patellar process in the male palp. The new species, Goeldia zyngierae sp. nov., was found living inside the Casa de Pedra cave, Ribeira, Itabaiana, Sergipe, Brazil. Goeldia zyngierae sp. nov. is diagnosed by the tegular process with a small constriction near the base of the dorsal part and by a distal narrowing, more visible in the dorsal side of the patellar process of the male palp. The female epigynum shows a pair of sinuous depressions and a large mid field that does not close the copulatory openings as in Goeldia luteipes Keyserling, 1878. The vulva presents a... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Cave; Neotropical; Social behavior; Spider; Taxonomy. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702009000200021 |
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| Gonzalez-Filho,Hector M. O.; Brescovit,Antonio D.; Lucas,Sylvia M.. |
| A new species of Tmesiphantes Simon, 1892, T. aridai sp. nov., is described and illustrated based on three males and three females collected at the Floresta Nacional do Tapajós, Santarém, state of Pará, Brazil. Males can be distinguished from T. perp Guadanucci & Silva, 2012 by the palpal bulb with an inconspicous tegular basal projection, but presenting a very slender embolus with shorter keels not extending to the tip, and from T. nubilus Simon, 1892 by the tibial apophysis with two similarly sized branches, the prolateral one with a strong spine on the retrolateral margin. Females resemble T. nubilus by the aspect of the seminal receptacle but the constriction near the apex is less evident and apex shape is irregular. The new species represents... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Brazilian Amazon rainforest; Floresta Nacional do Tapajós; Spider; Taxonomy; Theraphosinae. |
| Ano: 2014 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0073-47212014000200013 |
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| Bordon,Karla C F; Wiezel,Gisele A.; Amorim,Fernanda G.; Arantes,Eliane C.. |
| AbstractHyaluronidases are enzymes that mainly degrade hyaluronan, the major glycosaminoglycan of the interstitial matrix. They are involved in several pathological and physiological activities including fertilization, wound healing, embryogenesis, angiogenesis, diffusion of toxins and drugs, metastasis, pneumonia, sepsis, bacteremia, meningitis, inflammation and allergy, among others. Hyaluronidases are widely distributed in nature and the enzymes from mammalian spermatozoa, lysosomes and animal venoms belong to the subclass EC 3.2.1.35. To date, only five three-dimensional structures for arthropod venom hyaluronidases (Apis mellifera and Vespula vulgaris) were determined. Additionally, there are four molecular models for hyaluronidases fromMesobuthus... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Hyaluronidase; Scorpion; Spider; Caterpillar; Hymenoptera; Insects; Cloning; Heterologous expression; PEGylation; Biotechnological applications. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992015000100214 |
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| Liu,ZH; Qian,W; Li,J; Zhang,Y; Liang,S. |
| The wolf spider Lycosa singoriensis is a large and venomous spider distributed throughout northwestern China. Like other spider venoms, the wolf spider venom is a chemical cocktail. Its protein content is 0.659 mg protein/mg crude venom as determined by the Lowry method. MALDI-TOF analysis revealed that the venom peptides are highly diverse and may be divided into three groups characterized by three independent molecular ranges: 2,000 to 2,500 Da, 4,800 to 5,500 Da and 7,000 to 8,000 Da, respectively. This molecular distribution differs substantially from those of most spider venoms studied so far. This wolf spider venom has low neurotoxic action on mice, but it can induce hemolysis of human erythrocytes. Furthermore, the venom shows antimicrobial activity... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Spider; Lycosa singoriensis; Crude venom; MALDI-TOF; Antimicrobial activity. |
| Ano: 2009 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992009000100008 |
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| Guadanucci,José P.L.; Lucas,Sylvia M.; Indicatti,Rafael P.; Yamamoto,Flávio U.. |
| The genus Guyruita gen. nov. and two new species from Brazil are described. Holothele waikoshiemi (Bertani & Araújo, 2005) from Venezuela is transferred here to the new genus. Guyruita gen. nov. differs from the remaining Ischnocolinae by the following features: labium densely occupied by a lot of cuspules (more than 100), intercheliceral intumescence absent, posterior sternal sigilla remote from margin, tarsal claws without teeth, tarsal scopula I-II undivided (tarsus II with a line of sparse setae, which does not divide the scopula), III-IV divided. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Neotropical; New genus; Spider; Taxonomy. |
| Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0101-81752007000400015 |
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| Magalhães,Ivan Luiz Fiorini de; Santos,Adalberto J. |
| Pozonia Schenkel, 1953 is a genus of Neotropical orb-weaving spiders that currently includes four species, three of which are known only from females. In this paper, the male of Pozonia bacillifera (Simon, 1897) is described and illustrated for the first time, based on a specimen from Nova Lima, state of Minas Gerais, Brazil. It differs from the male of P. nigroventris (Bryant, 1936), the only other known male of the genus, in characters of the genitalia, such as the larger embolus and the smaller ventral lobe of the paracymbium, as well as in the shape of the sternum. This represents the first record of P. bacillifera for the region |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Neotropical region; Spider; Orb-weaver; Taxonomy. |
| Ano: 2011 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702011000100015 |
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| De Lima,ME; Borges,MH; Verano-Braga,T; Torres,FS; Montandon,GG; Cardoso,FL; Peixoto,KDBA; Cardoso-Jr,HC; Benelli,MT. |
| The search for new active drugs that can alleviate or cure different diseases is a constant challenge to researchers in the biological area and to the pharmaceutical industry. Historically, research has focused on the study of substances from plants. More recently, however, animal venoms have been attracting attention and studies have been successful in addressing treatment of accidents. Furthermore, venoms and their toxins have been considered good tools for prospecting for new active drugs or models for new therapeutic drugs. In this review, we discuss some possibilities of using different toxins, especially those from arachnid venoms, which have shown some potential application in diseases involving pain, hypertension, epilepsy and erectile dysfunction.... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Arachnidan toxins; Pain; Epilepsy; Cardiovascular effect; Priapism; Erectile function; Scorpion; Spider. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992010000100004 |
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| Silva,Estevam L. C. da; Lise,Arno A.. |
| Currently, nine species of Syntrechalea F.O. Pickard-Cambridge, 1902 are known, six of them occurring in Brazil. In this study, two new species of of this genus are described and illustrated from the states of Amazonas and Tocantins, northern Brazil. Syntrechalea neblina sp.nov. can be distinguished from all known species by the bifurcated guide of the median apophysis. Syntrechalea robusta sp.nov. can be distinguished from all known species by the wider and concave ectal division of the retrolateral tibial apophysis. Additionally, new records of S. adis Carico, 2008, S. brasilia Carico, 2008, S. caporiacco Carico, 2008, S. napoensis Carico, 2008, S. syntrechaloides (Mello-Leitão, 1941) and S. tenuis F.O. Pickard-Cambridge, 1902 are provided. |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Distribution; Neotropical region; Spider; Taxonomy. |
| Ano: 2010 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702010000300013 |
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| Indicatti,Rafael P.; Folly-Ramos,Elaine; Vargas,André B.; Lucas,Sylvia M.; Brescovit,Antonio D.. |
| Two new Nemesiidae species from Reserva Biológica do Tinguá, Rio de Janeiro, Brazil are described. Acanthogonatus minimussp. nov. differs from the remaining species of the genus by the male palpal bulb, which has very long and twisted embolus, ca. 2/3 the length of the palpal tibia, long and twisted spermathecae, anterior eye row recurved and fovea T-shaped. Chaco tinguasp. nov. differs from the remaining species of the genus by the retrolateral megaspine on tibia I, palpal embolus tip hook-shaped, inferior tarsal claw on all legs, absence of pubescence on the carapace and legs. Both species were collected with Winkler extractors in leaf litter. They are the smallest specimens in their respective genera and also among the world Nemesiidae described to... |
| Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Anaminae; Diplothelopsinae; Mata Atlântica; Phenology; Spider. |
| Ano: 2015 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1984-46702015000200123 |
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| Registros recuperados: 16 | |
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