Results 31 to 40 of about 2,940 (215)

First results on qualitative characteristics and biological activity of nematocyst extracts from Chrysaora plocamia (Cnidaria, Scyphozoa) Primeros resultados sobre las características cualitativas y actividad biológica de extractos de nematocistos de Chrysaora plocamia (Cnidaria, Scyphozoa)

Latin American Journal of Aquatic Research, 2008
We performed qualitative and quantitative characterizations of the biological activity of nematocyst extracts from 30 specimens of Chrysaora plocamia collected off Huayquique, Iquique, Chile. After extracting the nematocysts from the jellyfish tentacles,
Marco A Vega, Juan P Ogalde
doaj   +1 more source

New Class of Crosslinker-Free Nanofiber Biomaterials from Hydra Nematocyst Proteins [PDF]

Scientific Reports, 2019
Nematocysts, the stinging organelles of cnidarians, have remarkable mechanical properties. Hydra nematocyst capsules undergo volume changes of 50% during their explosive exocytosis and withstand osmotic pressures of beyond 100 bar.
Theresa Katharina Bentele, Federico Amadei, Esther Kimmle, Mariam Veschgini, Philipp Linke, Mariana Sontag-González, Jutta Tennigkeit, Anthony D. Ho, Suat Özbek, Motomu Tanaka   +9 more
openalex   +2 more sources

Coral Venom and Toxins as Protection Against Crown-of-Thorns Sea Star Attack. [PDF]

Mol Ecol
ABSTRACT Crown‐of‐thorns sea star (CoTS) outbreaks are a main cause of hard coral cover decline across the Indo‐Pacific, posing a major threat to the resilience of coral reefs. However, the drivers underlying CoTS feeding on preferred (e.g., Acropora species) versus non‐preferred (e.g., Porites species) are poorly understood. We hypothesised that coral
Gorman LM, Huffmyer AS, Byrne M, Mills SC, Putnam HM.   +4 more
europepmc   +2 more sources

In vitroandin vivoassays reveal that cations affect nematocyst discharge inMyxobolus cerebralis(Cnidaria: Myxozoa) [PDF]

Parasitology, 2020
Myxozoans are parasitic, microscopic cnidarians that have retained the phylum-characteristic stinging capsules called nematocysts. Free-living cnidarians, like jellyfish and corals, utilize nematocysts for feeding and defence, with discharge powered by ...
Benjamin Americus, Brett M. Austin, Tamar Lotan, Jerri L. Bartholomew, Stephen D. Atkinson   +4 more
openalex   +2 more sources

Obtainment of Two Monomorphic Nematocysts from <i>Nemopilema nomurai</i> (Cnidaria: Scyphozoa) and Comparative Analysis of the Biological Activities of Their Contents. [PDF]

Mar Drugs
Lyu Y, Huang Y, Song J, Zhou D, Zou S, Li J, Wang F, Wang Q, Hu Y, Zhu S, Luo S, Gan X, Zhang L, Liu G.   +13 more
europepmc   +3 more sources

NEMATOCYSTS OF MICROSTOMA

The Biological Bulletin, 1911
William A. Kepner
openalex   +4 more sources

Morphological and molecular analysis of the Nematostella vectensis cnidom. [PDF]

PLoS ONE, 2011
The starlet sea anemone Nematostella vectensis is an emerging model organism for developmental and evolutionary biology. Due to the availability of genome data and its amenability to genetic manipulation Nematostella serves as a source for comparative ...
Claudia Zenkert, Toshio Takahashi, Mark-Oliver Diesner, Suat Özbek   +3 more
doaj   +1 more source

Differing Effects of Vinegar on Pelagia noctiluca (Cnidaria: Scyphozoa) and Carybdea marsupialis (Cnidaria: Cubozoa) Stings—Implications for First Aid Protocols

Toxins, 2021
The jellyfish species that inhabit the Mediterranean coastal waters are not lethal, but their stings can cause severe pain and systemic effects that pose a health risk to humans. Despite the frequent occurrence of jellyfish stings, currently no consensus
Ainara Ballesteros, Macarena Marambio, Verónica Fuentes, Mridvika Narda, Andreu Santín, Josep-Maria Gili   +5 more
doaj   +1 more source

Nematocyst sequestration within the family Fionidae (Gastropoda: Nudibranchia) considering ecological properties and evolution

Frontiers in Zoology, 2022
Aeolid nudibranchs are well-known for their ability to incorporate cnidarian nematocysts and use them for defense; this process is tightly linked with the feeding preferences of molluscs.
I. Ekimova, O. Vorobyeva, A. Mikhlina, D. Schepetov, E. Vortsepneva, T. Antokhina, V. Malakhov   +6 more
semanticscholar   +1 more source

Cnidome and Morphological Features of Pelagia noctiluca (Cnidaria: Scyphozoa) Throughout the Different Life Cycle Stages

Frontiers in Marine Science, 2021
Pelagia noctiluca is considered the most important jellyfish in the Mediterranean Sea, due to its abundance and the severity of its stings. Despite its importance in marine ecosystems and the health problems caused by its massive arrival in coastal areas,
Ainara Ballesteros, Carina Östman, Andreu Santín, Macarena Marambio, Mridvika Narda, Josep-Maria Gili   +5 more
doaj   +1 more source