Results 91 to 100 of about 1,168 (207)

Snake venomics of Micrurus alleni and Micrurus mosquitensis from the Caribbean region of Costa Rica reveals two divergent compositional patterns in New World elapids

, 2015
Protein composition, toxicity, and neutralization of the venoms of Micrurus alleni and Micrurus mosquitensis, two sympatric monadal coral snakes found in humid environments of the Caribbean region of Costa Rica, were studied. Proteomic profiling revealed
Sanz, Libia, Vargas Vargas, Nancy, Sasa Marín, Mahmood, Fernández Ulate, Julián, Pla Ferrer, Davinia, Lomonte, Bruno, Rey Suárez, Paola, Gutiérrez, José María, Calvete Chornet, Juan José   +8 more
core   +1 more source

Higher-level phylogeny of Asian and American coralsnakes, their placement within the Elapidae (Squamata), and the systematic affinities of the enigmatic Asian coralsnake Hemibungarus calligaster (Wiegmann, 1834)

, 2007
The snake family Elapidae contains over 60 genera (about 300 species) of highly venomous snakes. About one-third of the alpha-taxonomic diversity of the Elapidae comprises coralsnakes: a major radiation of colourful venomous snakes including six genera ...
Parkinson, Christopher L., TODD A. CASTOE, Castoe, Todd A., Smith, Eric N., RAFE M. BROWN, CHRISTOPHER L. PARKINSON, ERIC N. SMITH, Brown, Rafe M.   +7 more
core   +2 more sources

Inventing an arsenal: adaptive evolution and neofunctionalization of snake venom phospholipase A₂ genes

BMC Evolutionary Biology, 2007
Background Gene duplication followed by functional divergence has long been hypothesized to be the main source of molecular novelty. Convincing examples of neofunctionalization, however, remain rare.
Lynch Vincent J
doaj   +1 more source

Activity of two key toxin groups in Australian elapid venoms show a strong correlation to phylogeny but not to diet

BMC Evolutionary Biology, 2020
Background The relative influence of diet and phylogeny on snake venom activity is a poorly understood aspect of snake venom evolution. We measured the activity of two enzyme toxin groups – phospholipase A2 (PLA2), and L-amino acid oxidase (LAAO) – in ...
Theo Tasoulis, Michael S. Y. Lee, Manon Ziajko, Nathan Dunstan, Joanna Sumner, Geoffrey K. Isbister   +5 more
doaj   +1 more source

Morphology, reproduction and diet in Australian and Papuan death adders (Acanthophis, Elapidae).

PLoS ONE, 2014
Death adders (genus Acanthophis) differ from most other elapid snakes, and resemble many viperid snakes, in their thickset morphology and ambush foraging mode.
Richard Shine, Carol L Spencer, J Scott Keogh   +2 more
doaj   +1 more source

Novel in vitro assays for assessing the haemorrhagic activity of snake venoms and for demonstration of venom metalloproteinase inhibitors

, 2001
Standard methods used for assessing the haemorrhagic toxicity of snake venoms and the effectiveness of antivenoms are laborious, expensive and involve the use of large numbers of laboratory animals.
Theakston, R. D.G., Harrison, Robert, Bee, A., Carter, S. D.   +3 more
core   +1 more source

The Cloning and Characterization of a Three-Finger Toxin Homolog (NXH8) from the Coralsnake Micrurus corallinus That Interacts with Skeletal Muscle Nicotinic Acetylcholine Receptors

Toxins
Coralsnakes (Micrurus spp.) are the only elapids found throughout the Americas. They are recognized for their highly neurotoxic venom, which is comprised of a wide variety of toxins, including the stable, low-mass toxins known as three-finger toxins ...
Henrique Roman-Ramos, Álvaro R. B. Prieto-da-Silva, Humberto Dellê, Rafael S. Floriano, Lourdes Dias, Stephen Hyslop, Raphael Schezaro-Ramos, Denis Servent, Gilles Mourier, Jéssica Lopes de Oliveira, Douglas Edgard Lemes, Letícia V. Costa-Lotufo, Jane S. Oliveira, Milene Cristina Menezes, Regina P. Markus, Paulo Lee Ho   +15 more
doaj   +1 more source

A comparative study of the morphology of the chondrocranium of Dendroaspis angusticeps and D. polylepis polylepis [PDF]

, 2017
The essential features of the chondrocrania of both D. angusticeps and D. polylepis polylepis are very similar and conform closely to the platytrabic ophidian type.
Biseswar, R
core  

The taxonomy of Australian elapid snakes: a review

Records of the Australian Museum, 1983
(Uploaded by Plazi from the Biodiversity Heritage Library) No abstract provided.
openaire   +2 more sources

Scale Sensilla in the Snakes of the Genus Natrix, and in the Old and New World Natricids

Taxonomy
Among European colubroids, scale sensilla—mechanoreceptors present in the head integument—are more expressed in natricids. The presence of protruded sensilla, observable with the naked eye, is found in the cephalic shields of all species belonging to the
Alessandro Paterna
doaj   +1 more source