Results 51 to 60 of about 4,074 (242)

Movement and storage of nematocysts across development in the nudibranch Berghia stephanieae (Valdés, 2005)

open access: yesFrontiers in Zoology, 2022
Background Intracellular sequestration requires specialized cellular and molecular mechanisms allowing a predator to retain and use specific organelles that once belonged to its prey.
Jessica A. Goodheart   +2 more
doaj   +1 more source

Transcriptome and venom proteome of the box jellyfish Chironex fleckeri [PDF]

open access: yes, 2015
Background: The box jellyfish, Chironex fleckeri, is the largest and most dangerous cubozoan jellyfish to humans. It produces potent and rapid-acting venom and its sting causes severe localized and systemic effects that are potentially life-threatening ...
Brinkman, Diane L.   +6 more
core   +1 more source

The Excitation of Nematocysts [PDF]

open access: yesJournal of Experimental Biology, 1942
ABSTRACT Though an enormous amount of work has been done on nematocysts, the problem of how they are discharged remains unsolved. There are really two separate problems. First, what is the natural stimulus which excites the cnidoblast; second, what is the physical mechanism by which the nematocyst itself discharges? There is more work on
openaire   +2 more sources

Venom proteome of the box jellyfish Chironex fleckeri. [PDF]

open access: yesPLoS ONE, 2012
The nematocyst is a complex intracellular structure unique to Cnidaria. When triggered to discharge, the nematocyst explosively releases a long spiny, tubule that delivers an often highly venomous mixture of components.
Diane L Brinkman   +5 more
doaj   +1 more source

Diversity and evolution of myxozoan minicollagens and nematogalectins [PDF]

open access: yes, 2014
Background: Myxozoa are a diverse group of metazoan parasites with a very simple organization, which has for decades eluded their evolutionary origin. Their most prominent and characteristic feature is the polar capsule: a complex intracellular structure
Cartwright, Paulyn   +5 more
core   +3 more sources

Coral Venom Toxins

open access: yesFrontiers in Ecology and Evolution, 2019
The phylum Cnidaria contains a wide variety of unique organisms that possess interesting adaptations evolved over many years to help them survive in a competitive environment.
Casey A. Schmidt   +2 more
doaj   +1 more source

Microbial arms race: Ballistic "nematocysts" in dinoflagellates represent a new extreme in organelle complexity [PDF]

open access: yes, 2017
We examine the origin of harpoon-like secretory organelles (nematocysts) in dinoflagellate protists. These ballistic organelles have been hypothesized to be homologous to similarly complex structures in animals (cnidarians); but we show, using structural,
Gavelis, G.S   +9 more
core   +2 more sources

Octorhopalona saltatrix, a New Genus and Species (Hydrozoa, Anthoathecata) from Japanese Waters

open access: yesAnimals, 2022
Approximately 300 species of cnidarian jellyfish have been reported in Japanese waters. However, many specimens remain unidentified. In this study, taxonomic investigations, including morphological observations and molecular 16S phylogenetic analyses ...
Sho Toshino   +2 more
doaj   +1 more source

Not all jellyfish are equal: isotopic evidence for inter- and intraspecific variation in jellyfish trophic ecology [PDF]

open access: yes, 2015
Jellyfish are highly topical within studies of pelagic food-webs and there is a growing realisation that their role is more complex than once thought.
Fleming, Nicholas E.C.   +3 more
core   +3 more sources

THE TOXICITY OF PHYSALIA NEMATOCYSTS

open access: yesThe Biological Bulletin, 1958
The general composition and conditions of reactivity of the nematocysts and nematocyst contents of Physalia are described. A method is presented for isolation of nematocysts without contamination by other tentacular material. The nematocyst content appears to be a highly labile protein complex.
Charles E. Lane, Eleanor Dodge
openaire   +3 more sources

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