Results 21 to 30 of about 517 (139)

Preparation and Properties of Cnidocytes from the Sea Anemone Anthopleura elegantissima

open access: greenThe Biological Bulletin, 1988
Cnidocytes were isolated from the tentacles and acrorhagi of Anthopleura elegantissima by enzymatic treatment with papain followed by centrifugation in a Percoll-containing medium to produce a concentrated fraction of these cells. The morphology of the isolated cells, as revealed by light and electron microscopy, showed that these cells had intact ...
M. Craig McKay, Peter Anderson
openalex   +6 more sources

Mating in the box jellyfish Copula sivickisi—Novel function of cnidocytes [PDF]

open access: bronzeJournal of Morphology, 2015
ABSTRACTWithin cubozoans, a few species have developed a sexual reproduction system including mating and internal fertilization. One species, Copula sivickisi, is found in a large area of the indo pacific. They have separate sexes and when mature males and females meet they entangle their tentacles and the males transfer a sperm package, a ...
Anders Garm   +2 more
openalex   +5 more sources

Comparative Analysis of Convergent Jellyfish Eyes Reveals Extensive Differences in Expression of Vision-Related Genes. [PDF]

open access: yesEcol Evol
Eyes have evolved in many different lineages, including several times within jellyfish, yet the relative contributions of shared and lineage‐specific genes to convergent eyes are not known. We find that three long‐diverged species of jellyfish have mostly divergent patterns of gene expression in their eye‐bearing tissues, suggesting a major role for ...
Picciani N   +8 more
europepmc   +2 more sources

Variability of cnidae within a small clonal sea anemone (Isactinia sp.)

open access: yesInvertebrate Biology, Volume 142, Issue 4, December 2023., 2023
Abstract The cnidom and intraspecific variability of cnidae within the small sea anemone Isactinia sp. were verified. The specific cnidae within the cnidom of four discrete morphological structures (tentacle, actinopharynx, mesenterial filaments, and body column) within Isactinia sp. was investigated.
Katrina L. Kaposi   +3 more
wiley   +1 more source

Multisensory integration by polymodal sensory neurons dictates larval settlement in a brainless cnidarian larva

open access: yesMolecular Ecology, Volume 32, Issue 14, Page 3892-3907, July 2023., 2023
Abstract Multisensory integration (MSI) combines information from more than one sensory modality to elicit behaviours distinct from unisensory behaviours. MSI is best understood in animals with complex brains and specialized centres for parsing different modes of sensory information, but dispersive larvae of sessile marine invertebrates utilize ...
Sydney Birch, David Plachetzki
wiley   +1 more source

Conserved and lineage-restricted gene regulatory programs modulate developmental cnidocyte specification in Nematostella vectensis.

open access: green
AbstractCnidocytes are a synapomorphy of cnidarians that have evolved a range of morphologies and functions within and across extant species, which makes them an excellent model to investigate how novel cell types emerge and radiate in evolution. One way to gain insight into how cell types evolve is to investigate the gene regulatory networks (GRNs ...
Benjamin Danladi   +8 more
openalex   +2 more sources

Sea anemone model has a single Toll-like receptor that can function in pathogen detection, NF-κB signal transduction, and development [PDF]

open access: yes, 2017
In organisms from insects to vertebrates, Toll-like receptors (TLRs) are primary pathogen detectors that activate downstream pathways, specifically those that direct expression of innate immune effector genes.
Brennan, Joseph J.   +5 more
core   +1 more source

Cloning and functional expression of voltage-gated ion channel subunits from cnidocytes of the Portuguese Man O'War Physalia physalis [PDF]

open access: closedJournal of Experimental Biology, 2006
SUMMARY Cnidocytes were dissociated from the tentacles of the Portuguese Man O'War Physalia physalis using heat treatment, and purified using density centrifugation. Visual observation confirmed that these cnidocytes contained a nucleus, a cnidocyst and an apical stereocilium, confirming that the cells were intact.
Christelle Bouchard   +6 more
openalex   +4 more sources

Current directions and future perspectives from the third Nematostella research conference [PDF]

open access: yes, 2014
Author Posting. © The Author(s), 2014. This is the author's version of the work. It is posted here by permission of Elsevier for personal use, not for redistribution.
Gilmore, Thomas D.   +5 more
core   +1 more source

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