Results 181 to 190 of about 5,400 (239)

Leveraging Nematocysts Toward Human Care

2016
The stinging cells of cnidarians contain nematocysts, which are a sophisticated ultra-fast injection system that can penetrate the skin immediately. This chapter will review two nematocyst-based biotechnology applications. The first hinders nematocyst discharge and thereby prevents jellyfish envenomation.
T. Lotan
openaire   +2 more sources

A comparison of the structure and function of nematocysts in free-living and parasitic cnidarians (Myxozoa).

International Journal of Parasitology, 2020
Myxozoans are obligate parasites that have complex life cycles requiring alternate vertebrate and invertebrate hosts, with transmission via microscopic waterborne spores. Unusually for parasites, they belong to the phylum Cnidaria, alongside thousands of
Benjamin Americus, T. Lotan, J. Bartholomew, S. Atkinson   +3 more
semanticscholar   +1 more source

Updated descriptions of the nematocysts of the scyphozoan jellyfish Cyanea nozakii Kishinouye, 1891 (Cnidaria, Scyphozoa).

Toxicon, 2020
Nematocysts are typical cnidarian organelles that can discharge and release venom under physicochemical stimuli for predation and defense. Cyanea nozakii Kishinouye, 1891, a dominant jellyfish-blooming species in Chinese coastal waters, possesses ...
Y. Yue, Wei Xue, Huahua Yu, Rongfeng Li, Pengcheng Li   +4 more
semanticscholar   +1 more source

Cytochemical Research on Coelenterate Nematocysts

Nature, 1955
A NOTE by T. M. Yanagita and T. Wada1 suggesting, after C. H. Brown2, the possible keratin nature of coelenterate nematocysts has directed my attention to the subject. In 1952 I had observed the pronounced metachromatic colour produced by dilute thionin on large nematocysts from a siphonophore, Halistemma sp.
exaly   +3 more sources

Incorporated nematocysts in Aeolidiella stephanieae (Gastropoda, Opisthobranchia, Aeolidoidea) mature by acidification shown by the pH sensitive fluorescing alkaloid Ageladine A

Toxicon, 2012
The sequestration of nematocysts (a special group of cnidocysts) from cnidarian prey with subsequent use in defence is described for few metazoan phyla. Members of the taxon Aeolidoidea (Nudibranchia, Gastropoda) are well-known for this.
Ulf Bickmeyer, Heike Wägele
exaly   +2 more sources

Active Nematocyst Isolation Via Nudibranchs

Marine Biotechnology, 2009
Cnidarian venoms are potentially valuable tools for biomedical research and drug development. They are contained within nematocysts, the stinging organelles of cnidarians. Several methods exist for the isolation of nematocysts from cnidarian tissues; most are tedious and target nematocysts from specific tissues.
Ami, Schlesinger, Esti, Kramarsky-Winter, Yossi, Loya   +2 more
openaire   +2 more sources

Two species of Edwardsia having gigantic nematocysts, E. aff. tuberculata br />and E. alternobomen sp. nov. (Cnidaria; Anthozoa; Actiniaria; Edwardsiidae) from Japan.

Zootaxa, 2019
The genus Edwardsia de Quatrefages, 1842 is the group of worm-like sea anemones of the family Edwardsiidae, characterized by having nemathybomes on their body wall and physa at their aboral end.
Takato Izumi, T. Fujita
semanticscholar   +1 more source

Coelenterate nematocysts bind immunoglobulins

Experientia, 1982
Nematocyst capsules ofActinia equina were shown to bind immunoglobulins. Binding is not affected by EDTA-pretreatment or incubation with N-acetyl-galactosamine and N-acetyl-glucosamine.
openaire   +2 more sources

The Cell Biology of Nematocysts

1994
Publisher Summary This chapter focuses on the cell biology of nematocysts. Nematocysts, the most widely used term to describe the “stinging capsules” characteristic of the phylum Cnidaria, constitute the best-studied and most diverse group of cnidae, the secretory products of cnidocytes.
G M, Watson, P, Mire-Thibodeaux
openaire   +2 more sources