Results 41 to 50 of about 2,873 (206)

Spider Venoms: Biochemical Aspects [PDF]

American Zoologist, 1969
SYNOPSIS. The venoms of spiders are quite complex and contain an array of biologically active components. The majority of studies on the biochemical aspects of these venoms have utilized four species: Phoneutria fera, Lycosa erythrognatha, Atrax robustus , and Latrodectus mactans .
openaire   +2 more sources

Sphingomyelinase D Activity in Sicarius tropicus Venom: Toxic Potential and Clues to the Evolution of SMases D in the Sicariidae Family

Toxins, 2021
The spider family Sicariidae includes three genera, Hexophthalma, Sicarius and Loxosceles. The three genera share a common characteristic in their venoms: the presence of Sphingomyelinases D (SMase D).
Priscila Hess Lopes, Caroline Sayuri Fukushima, Rosana Shoji, Rogério Bertani, Denise V. Tambourgi   +4 more
doaj   +1 more source

Revealing the Venomous Secrets of the Spider’s Web

Journal of Proteome Research, 2020
Orb-weaving spiders use a highly strong, sticky and elastic web to catch their prey. These web properties alone would be enough for the entrapment of prey; however, these spiders may be hiding venomous secrets in the web, which current research is revealing. Here, we provide strong proteotranscriptomic evidence for the presence of toxin/neurotoxin-like
Franciele Grego Esteves, José Roberto Aparecido dos Santos-Pinto, Milene Ferro, Fernando J. Sialana, Roman Smidak, Lucaciu Calin Rares, Thomas Nussbaumer, Thomas Rattei, Martin Bilban, Mauricio Bacci Júnior, Gert Lubec, Mario Sergio Palma   +11 more
openaire   +4 more sources

Composition and toxicity of venom produced by araneophagous white-tailed spiders (Lamponidae: Lampona sp.)

Scientific Reports, 2022
Prey-specialised spiders are adapted to capture specific prey items, including dangerous prey. The venoms of specialists are often prey-specific and less complex than those of generalists, but their venom composition has not been studied in detail. Here,
Ondřej Michálek, Andrew A. Walker, Ondrej Šedo, Zbyněk Zdráhal, Glenn F. King, Stano Pekár   +5 more
doaj   +1 more source

The Nonpeptide Low Molecular Mass Toxins from Spider Venoms

, 2016
Spiders occupy most of the ecological niches of the planet, revealing a huge adaptive plasticity, reflected in the chemical diversity of their venom toxins.
DiegoGarcia, E., Gopalakrishnakone, P., Gomes, Paulo Cesar [UNESP], Corzo, G., Palma, Mario Sergio [UNESP], DeLima, M. E.   +5 more
core   +1 more source

A roadmap to the enzymes from spider venom: biochemical ecology, molecular diversity, and value for the bioeconomy

Frontiers in Arachnid Science
Spiders are ancient and highly successful predators, which use venom for both predation and defense. Their venoms are complex mixtures of potent biological molecules, emerging as a prolific source of biomolecular innovation in agriculture, biomedicine ...
Josephine Dresler, Josephine Dresler, Ignazio Avella, Ignazio Avella, Maik Damm, Maik Damm, Ludwig Dersch, Ludwig Dersch, Jonas Krämer, Jonas Krämer, Andreas Vilcinskas, Andreas Vilcinskas, Andreas Vilcinskas, Tim Lüddecke, Tim Lüddecke   +14 more
doaj   +1 more source

Quantitative muscle architecture in large carnivorous marsupials (Marsupialia: Dasyuridae) and links to substrate use and prey processing

The Anatomical Record, EarlyView.
Abstract The Dasyurid species Sarcophilus harrisii, Dasyurus maculatus, and Dasyurus viverrinus, occupying diverse ecological niches and forming a guild structure in Tasmania, provide a basis for examining the roles of various forelimb muscle groups in prey capture and locomotion.
Riya G. Bidaye, Samuel H. Frenkel, David P. Hocking, Alistair R. Evans, Justin W. Adams   +4 more
wiley   +1 more source

Electrophysiological evaluation of the effect of peptide toxins on voltage-gated ion channels: a scoping review on theoretical and methodological aspects with focus on the Central and South American experience [PDF]

Journal of Venomous Animals and Toxins including Tropical Diseases
The effect of peptide toxins on voltage-gated ion channels can be reliably assessed using electrophysiological assays, such as the patch-clamp technique.
Jessica Rojas-Palomino, Alejandro Gómez-Restrepo, Cristian Salinas-Restrepo, César Segura, Marco A. Giraldo, Juan C. Calderón   +5 more
doaj   +1 more source

An Economic Dilemma between Molecular Weapon Systems May Explain an Arachno-Atypical Venom in Wasp Spiders (Argiope bruennichi)

Biomolecules, 2020
Spiders use venom to subdue their prey, but little is known about the diversity of venoms in different spider families. Given the limited data available for orb-weaver spiders (Araneidae), we selected the wasp spider Argiope bruennichi for detailed ...
Tim Lüddecke, Björn M. von Reumont, Frank Förster, André Billion, Thomas Timm, Günter Lochnit, Andreas Vilcinskas, Sarah Lemke   +7 more
doaj   +1 more source

A neuro‐behavioural model of neophobia

Biological Reviews, EarlyView.
ABSTRACT Fear can be defined as the internal neurological state that releases a repertoire of behaviours an animal performs to reduce the effect of an aversive factor. Neophobia, the fear of novelty, is a fundamental behavioural trait observed across a wide range of species from arthropods to humans.
Arik Dorfman, Aziz Subach, Inon Scharf
wiley   +1 more source