Results 91 to 100 of about 422 (116)
Evidence that polycystins are involved in Hydra cnidocyte discharge
Like other cnidarians, the freshwater organism Hydra is characterized by the possession of cnidocytes (stinging cells). Most cnidocytes are located on hydra tentacles, where they are organized along with sensory cells and ganglion cells into battery complexes.
Susan Mclaughlin
semanticscholar +5 more sources
Neural pathways and innervation of cnidocytes in tentacles of sea anemones
Our previously published studies are here reviewed detailing neuro-cnidocyte synapses, demonstrating putative neurotransmitter substances, and identifying complex neural pathways in sea anemones. Synapses were traced to their contacts on nematocytes and spirocytes by transmission electron microscopy of serial thin sections of tentacles. In five animals,
J. A. Westfall
semanticscholar +4 more sources
Cnidocytes as Microscale Synthesis and Delivery Modules [PDF]
Abstract : As a first step in using nematocysts isolated from Physalia in a drug-delivery patch, we needed to assess the techniques used to yield efficient discharge. A number of pre-discharge and discharge solutions were utilized to determine the best combination, chosen based on literature findings for nematocysts isolated from other species.
David Eddington, J. I. Bates
openalex +2 more sources
ULTRASTRUCTURE OF THE SMALL CNIDOCYTE OF THE PORTUGUESE MAN-OF-WAR ( Physalia physalis ) TENTACLE
D. Hessinger, Mark T. Ford
semanticscholar +3 more sources
Physalia physalis, the Portuguese man of war, consumes mostly fish and fish larvae. Intracellular recordings from nematocyst‐containing cells (cnidocytes) in small pieces of Physalia tentacle were used to quantify the electrical responses to diluted and filtered fish skin mucus, 1–100 x 10‐6 M amino acids, monosaccharides, and nucleosides, and seawater,
J. E. Purcell, P.A.V. Anderson
openalex +3 more sources
This study investigated the localization of a voltage-gated calcium channel (VGCC) β subunit in the tentacles and cnidocytes of the Portuguese man-of-war using confocal immunocytochemistry. An antibody specific to the Ca(2+) channel β subunit of the Portuguese-man-of-war (PpCaVβ) was generated, and characterized by Western immunoblotting.
Christelle Bouchard, Peter Anderson
openalex +4 more sources
Gonadal cnidocytes in the cubozoan Tripedalia cystophora Conant, 1897 (Cnidaria: Cubozoa)
AbstractCubozoans have a complex lifecycle in many ways similar to the scyphozoan lifecycle. The sexual reproduction within cubozoans varies between species with one clade having copulation and internal fertilization and the release of planula larvae.
Sandra Helmark, Anders Garm
openalex +5 more sources
Cnidocytes and adjacent supporting cells form receptor-effector complexes in anemone tentacles
Cnidocytes, the stinging cells of enidarians, discharge enidae (intracellular capsules containing eversible tubules) in response to physical contact combined with the stimulation of specific chemoreceptors. These receptors, occurring in at least two classes, bind N-acetylated sugars and certain amino-compounds, respectively (Thorington and Hessinger ...
Glen M. Watson, David A. Hessinger
openalex +4 more sources
ABSTRACT Cnidocyte-supporting cell complexes (CSCCs) discharge nematocysts into targets upon coincidental stimulation of specific chemoreceptors and contactsensitive mechanoreceptors. In addition, CSCCs in the tentacles of at least one species of sea anemone discharge nematocysts into targets vibrating at specific frequencies.
Glen M. Watson, David A. Hessinger
openalex +3 more sources