Results 61 to 70 of about 3,201 (247)

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

THE NEMATOCYST TOXIN OF METRIDIUM

open access: yesThe Biological Bulletin, 1971
1. Material discharged by isolated nematocysts of Metridium senile senile Linnaeus (1767) has been found to be toxic to crayfish Orconectes virilis Hagen (1870), O. propinquus Girard (1852), and Procambarus econfinae Hobbs (1942).2. The toxin appears to be composed of a proteinaceous, undialyzable fraction, and a dialyzable fraction containing two ...
M. H. Goodwin, M. Telford
openaire   +3 more sources

Functional Characteristics of Nematocysts Found on the Scyphomedusa Cyanea Capillata [PDF]

open access: yes, 2007
Although prey capture by cnidarians is mediated through nematocysts, their influence on prey selection by cnidarians remains poorly documented. The difficulty in visualizing nematocyst–prey interactions remains the chief obstacle to understanding how the
Colin, Sean, Costello, John H.
core   +1 more source

Biohybrid Microrobots Based on Jellyfish Stinging Capsules and Janus Particles for In Vitro Deep‐Tissue Drug Penetration

open access: yesSmall Science, Volume 5, Issue 6, June 2025.
This study introduces a biohybrid microrobot utilizing jellyfish‐stinging capsules as nanoinjectors, integrated onto Janus particles. Controlled by magnetic and electric fields, these microrobots achieve deep tissue penetration and precise drug delivery.
Sinwook Park   +3 more
wiley   +1 more source

Functional Morphology and Fluid Interactions During Early Development of the Scyphomedusa Aurelia aurita [PDF]

open access: yes, 2009
Scyphomedusae undergo a predictable ontogenetic transition from a conserved, universal larval form to a diverse array of adult morphologies. This transition entails a change in bell morphology from a highly discontinuous ephyral form, with deep clefts ...
Colin, S. P.   +4 more
core   +2 more sources

Diel activity correlates with colour pattern morphology of heterobranch sea slugs

open access: yesJournal of Animal Ecology, Volume 94, Issue 6, Page 1165-1179, June 2025.
The authors show that daytime activity fundamentally shapes the appearance of prey animals to potential predators and that colour pattern phenotypes likely associated with visual signalling are predominantly found in diurnal species of sea slugs. This study showcases novel methodology combining comparative phylogenetic analyses, animal vision modelling,
Cedric P. van den Berg   +5 more
wiley   +1 more source

Haemolytic activity and characterization of nematocyst venom from Pelagia noctiluca (Cnidaria: Scyphozoa) [PDF]

open access: yes, 2013
We investigated the haemolytic capacity of the crude venom extracted from isolated nematocysts of Pelagia noctiluca (Cnidaria: Scyphozoa), and evidenced the proteic fractions responsible for this activity.
BENENATI, Gigliola   +9 more
core   +1 more source

Jellyfish stings‐induced cardiac failure was ameliorated through AAG‐mediated glycogen‐driven ATP production

open access: yesExploration, Volume 5, Issue 1, February 2025.
Single cell sequencing revealed AAG, an energy regulatory protein targeting to glycogen, was highly expressed in jellyfish stings‐induced CF patients. We postulated AAG could increase glycogen metabolism, protecting against jellyfish stings‐induced CF.
Zhen Qin   +12 more
wiley   +1 more source

The hydroid and medusa of Sarsia bella sp. nov. (Hydrozoa, Anthoathecatae, Corynidae), with a correction of the life cycle of Polyorchis penicillatus (Eschscholtz)

open access: yesScientia Marina, 2000
A new hydrozoan, Sarsia bella sp. nov. is described in both its hydroid and medusa stage from north of Puget Sound, Washington in the San Juan Islands, USA and off the southernmost tip of Vancouver Island, Canada.
Anita Brinckmann-Voss
doaj   +1 more source

Carybdea branchi, sp. nov., a new box jellyfish (Cnidaria: Cubozoa) from South Africa. [PDF]

open access: yes, 2009
A common and conspicuous member of the medusan fauna of South Africa has been the subject of repeated taxonomic confusion. After having been mistakenly identified by earlier workers as either Carybdea alata or Tamoya haplonema, this large and colourful ...
Gershwin, Lisa-Ann, Gibbons, Mark J.
core   +1 more source

Home - About - Disclaimer - Privacy