Results 21 to 30 of about 5,400 (239)

NEMATOCYSTS OF MICROSTOMA

The Biological Bulletin, 1924
The nematocysts of Microstoma are derived from Hydra upon which Microstoma feeds. These ingested nematocysts are delivered to the mesoderm by the endoderm of the flatworm. Within the mesoderm an amœboid cell takes charge of each nematocyst and as it is transported to the surface orients it so that the "sting-thread" has its discharging pole directed ...
WM. A. KEPNER, JOHN F. BARKER
openaire   +3 more sources

Getting information from ethanol preserved nematocysts of the venomous cubomedusa Chiropsalmus quadrumanus: a simple technique to facilitate the study of nematocysts

Latin American Journal of Aquatic Research, 2013
Preserved specimens make it difficult to study nematocysts. We tested an hydration protocol on ethanol preserved tentacles of Chiropsalmus quadrumanus (Cubomedusae) during a period of ten days, and quantified the success of retrieval of information ...
Nathalia Mejía-Sánchez, Antonio C Marques   +1 more
doaj   +2 more sources

Blue angels have devil hands: Predatory behavior using cerata in Glaucus atlanticus. [PDF]

Ecology
Ecology, Volume 106, Issue 3, March 2025.
Yamamoto G, Kanai N, Miura T, Oguchi K.
europepmc   +2 more sources

Antiproliferative and antioxidant properties of nematocysts crude venom from jellyfish Acromitus flagellatus against human cancer cell lines

Saudi Journal of Biological Sciences, 2021
Graphical ...
Hemavathi Maduraiveeran, K. Raja, Arulvasu Chinnasamy   +2 more
semanticscholar   +1 more source

Bioluminescence of the heterotrophic dinoflagellate Polykrikos kofoidii Chatton 1914 (Dinophyceae). [PDF]

J Phycol
Abstract Heterotrophic dinoflagellates are important predators of phytoplankton, and many species produce bioluminescence, which is thought to serve as an antipredator function. The present study investigated the bioluminescence of the heterotrophic dinoflagellate Polykrikos kofoidii, an important predator of toxic and bloom‐forming dinoflagellates ...
Latz MI, Deheyn DD, Sprecher BN.
europepmc   +2 more sources

Proteome of Hydra Nematocyst [PDF]

Journal of Biological Chemistry, 2012
Stinging cells or nematocytes of jellyfish and other cnidarians represent one of the most poisonous and sophisticated cellular inventions in animal evolution. This ancient cell type is unique in containing a giant secretory vesicle derived from the Golgi apparatus.
Prakash G, Balasubramanian, Anna, Beckmann, Uwe, Warnken, Martina, Schnölzer, Andreas, Schüler, Erich, Bornberg-Bauer, Thomas W, Holstein, Suat, Özbek   +7 more
openaire   +2 more sources

The cnidarian parasite Ceratonova shasta utilizes inherited and recruited venom-like compounds during infection [PDF]

PeerJ, 2021
Background Cnidarians are the most ancient venomous organisms. They store a cocktail of venom proteins inside unique stinging organelles called nematocysts.
Benjamin Americus, Nicole Hams, Anna M. L. Klompen, Gema Alama-Bermejo, Tamar Lotan, Jerri L. Bartholomew, Stephen D. Atkinson   +6 more
doaj   +2 more sources

Being Safe, but Not Too Safe: A Nudibranch Feeding on a Bryozoan-Associated Hydrozoan

Diversity, 2023
Nudibranchs have a mostly carnivorous diet, and they prey on a wide variety of other animal taxa. Many species, mainly belonging to the Cladobranchia suborder, feed on cnidarians, including member of the class Hydrozoa.
Davide Maggioni, Giulia Furfaro, Michele Solca, Davide Seveso, Paolo Galli, Simone Montano   +5 more
doaj   +1 more source

Sea anemone Bartholomea annulata venom inhibits voltage-gated Na+ channels and activates GABAA receptors from mammals

Scientific Reports, 2022
Toxin production in nematocysts by Cnidaria phylum represents an important source of bioactive compounds. Using electrophysiology and, heterologous expression of mammalian ion channels in the Xenopus oocyte membrane, we identified two main effects ...
Antònia Colom-Casasnovas, Edith Garay, Abraham Cisneros-Mejorado, Manuel B. Aguilar, Fernando Lazcano-Pérez, Rogelio O. Arellano, Judith Sánchez-Rodríguez   +6 more
doaj   +1 more source

Associations between fishes (Actinopterygii: Teleostei) and anthozoans (Anthozoa: Hexacorallia) in epipelagic waters based on in situ records. [PDF]

J Fish Biol
Abstract We formally describe the association of fishes and anthozoans in epipelagic waters, extending this relationship to beyond the benthos. In situ observations and photographs of Aluterus schoepfii, Ariomma regulus, Caranx cf. latus and Brama spp.
Afonso GVF, Johnson GD, Collins R, Pastana MNL.   +3 more
europepmc   +2 more sources