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Antibacterial activity of venom from funnel web spider Agelena labyrinthica (Araneae: Agelenidae) J. Venom. Anim. Toxins incl. Trop. Dis.
Benli,M; Yigit,N.
Since the number of microorganisms that are resistant to antibiotics has been increasing steadily, the need for combating these pathogens requires new pharmaceutical agents. To produce these substances, new models have been developed in recent decades. In our study, the venom of Agelena labyrinthica (Clerck, 1757) (Araneae: Agelenidae) was tested against ten bacterial strains, specifically, testing 1/100, 1/10 and 1/1 fractions of diluted venom against these bacteria. While the 1/100 dilution was successful in only one of ten bacterial strains, the 1/10 and the 1/1 were effective on six of ten bacterial strains. The most effective results, among these three different concentrations, were observed on Bacillus subtilis. The other five strains that were also...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Agelena labyrinthica; Venom; Antimicrobial activity.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992008000400007
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Fine structural analysis of the stinger in venom apparatus of the scorpion Euscorpius mingrelicus (Scorpiones: Euscorpiidae) J. Venom. Anim. Toxins incl. Trop. Dis.
Yigit,N; Benli,M.
In this study, the morphology, histology and fine structure of the stinger, a part of the venom apparatus of Euscorpius mingrelicus (Kessler, 1874) (Scorpiones: Euscorpiidae) were studied by light microscopy and transmission electron microscopy (TEM). The stinger, located at the end section of the telson, is sickle-shaped. The venom is ejected through a pair of venom pores on its subterminal portion. Both venom ducts extend along the stinger without contact with each other since they are separated by connective tissue cells. The stinger cuticle is composed of two layers. Additionally, there are many pore canals and some hemolymph vessels in the cuticle. This work constitutes the first histological and fine structure study on Euscorpius mingrelicus stinger.
Tipo: Info:eu-repo/semantics/article Palavras-chave: Scorpion; Euscorpius mingrelicus; Telson; Stinger; Fine structure; Transmission electron microscopy.
Ano: 2010 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992010000100008
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The venom gland of the scorpion species Euscorpius mingrelicus (Scorpiones: Euscorpiidae): morphological and ultrastructural characterization J. Venom. Anim. Toxins incl. Trop. Dis.
Yigit,N; Benli,M.
The histology and ultrastructure of venom glands in the scorpion Euscorpius mingrelicus (Kessler, 1874) are described and illustrated in the current study for the first time by employing light microscopy and transmission electron microscopy (TEM). The venom apparatus is composed of a pair of venom glands and a stinger, both situated in the last segment of the metasoma. The venom glands are completely separate but similar. The two glands are segregated within the telson by striated muscle bundles, and their outer surfaces are surrounded by a cuticle. An internal layer constitutes the secretory epithelium. This epithelium is made up of simple columnar cells. The nucleus and organelles involved in cellular synthetic activity are situated basally. In the...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Euscorpius mingrelicus; Scorpion; Telson; Venom gland; Histology; Ultrastructure.
Ano: 2008 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992008000300007
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Morphological characterization of the venom apparatus in the wolf spider Lycosa singoriensis (Laxmann, 1770) J. Venom. Anim. Toxins incl. Trop. Dis.
Yigit,N; Bayram,A; Danisman,T; Sancak,Z; Tel,MG.
The wolf spider Lycosa singoriensis (Laxmann, 1770) (Lycosidae: Araneae) is distributed throughout central and eastern Europe, including Russia, Kazakhistan and Turkey. This study describes the venom apparatus morphology of L. singoriensis through scanning electron microscopy (SEM). Its structure follows the general architecture observed in other spiders. Generally, a venom apparatus is composed by a pair of venom glands and chelicerae. L. singoriensis chelicerae are robust and consist of a stout basis and a movable apical segment (fang). The fang rests in a groove on the basal segment that is covered by different types of hair. L. singoriensis venom glands present equal size and measure about 4 mm in length. Each gland is enclosed by irregular muscular...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Spider; Lycosa singoriensis; Chelicerae; Venom gland; Morphology.
Ano: 2009 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-91992009000100013
Registros recuperados: 4
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