Effect of crude venom from nematocysts ofPelagia noctiluca(Scyphozoa) on spread discharge of acontia ofCalliactis parasitica(Anthozoa)

Autor:	Rossana Morabito, G. La Spada, Angela Marino, T. Pizzata
Rok vydání:	2008
Předmět:	Cnidaria Ecology Calliactis parasitica biology Acontia Venom Scyphozoa Anatomy biology.organism_classification Pelagia noctiluca Biophysics General Earth and Planetary Sciences Cnidocyte Nematocyst Ecology Evolution Behavior and Systematics General Environmental Science
Zdroj:	Chemistry and Ecology. 24:9-17
ISSN:	1029-0370 0275-7540
Popis:	The present investigation was aimed at assessing the toxic power of crude venom from Pelagia noctiluca nematocysts on spread discharge of in situ acontial nematocytes. Spread discharge, under 553 mM NaSCN plus 10 mM Ca2+, consists of the protrusion and firing of the nematocytes all along the acontial filament. Acontia from Calliactis parasitica were treated with the discharging solution under a constant flow as a control condition. In a separate experiment acontia were firstly treated with Pelagia noctiluca crude venom aliquots and then with the discharging solution to prove spread discharge. Crude venom blocked the discharge with a dose-dependent irreversible effect. From these results arises that crude venom of Pelagia noctiluca nematocysts can affect the spread discharge with a mechanism that is still unknown. It could be hypothesized that crude venom can block gap junctions probably involved in this cellular communication. Nevertheless either a damage of cells involved in nematocyte activation or even...
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::9e133a71f811a14c11f0e4f7e420eec5 https://doi.org/10.1080/02757540801970050 Zobrazit plný text záznamu Plný text ve formátu PDF Plný text ve formátu HTML
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