Results 131 to 140 of about 717 (152)
Cnidocyte mechanoreceptors are tuned to the movements of swimming prey by chemoreceptors.
Cnidocytes, the stinging cells of cnidarians, discharge nematocysts in response to physical contact accompanied by the stimulation of specific chemoreceptors. Cnidocytes in fishing tentacles of a sea anemone are now found to discharge nematocysts preferentially into targets vibrating at 30, 55, and 65 to 75 hertz.
G. Watson, D. Hessinger
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ULTRASTRUCTURE OF THE SMALL CNIDOCYTE OF THE PORTUGUESE MAN-OF-WAR ( Physalia physalis ) TENTACLE
D. Hessinger, Mark T. Ford
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Cnidocytes as Microscale Synthesis and Delivery Modules
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
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ON THE PREPARATION AND PROPERTIES OF ISOLATED CNIDOCYTES AND CNIDAE1
M. Craig McKay, Peter Anderson
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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
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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
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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
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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,
Jane A. Westfall
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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
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