PMID: 9165347May 1, 1997Paper

Hair bundles of sea anemones as a model system for vertebrate hair bundles

Hearing Research
G M WatsonR R Hudson

Abstract

Sea anemones are marine invertebrates that use hair bundles to detect swimming movements of prey. Prey are captured by nematocysts (stinging capsules) that discharge into the prey. To further characterize anemone hair bundles and to compare hair bundles in anemones with hair bundles in vertebrates, we investigated fine structure and cytochemistry of anemone hair bundles. In addition, using a biological assay based on counting nematocysts discharged into vibrating test probes, we examined sensitivity of vibration detection to aminoglycoside antibiotics, Ca(2+)-free seawater, and amiloride. Like vertebrate hair bundles, anemone hair bundles are composed of stereocilia, possess lateral linkages between stereocilia whose preservation for transmission electron microscopy is enhanced by ruthenium red, and possess tip links morphologically similar to vertebrate tip links. Furthermore, vibration-dependent discharge of nematocysts is reversibly inhibited by 10(-4) M streptomycin and abolished by brief exposure to Ca(2+)-free seawater. However, unlike vertebrate hair bundles, anemone hair bundles appear to be insensitive to amiloride since vibration-dependent discharge of nematocysts is unaffected by up to mM amiloride. Thus, anemone hai...Continue Reading

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Citations

Aug 2, 2007·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Kamalika Nag, Glen M Watson
Jul 26, 2008·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Glen M WatsonPatricia Mire
Mar 12, 2011·Journal of Comparative Physiology. A, Neuroethology, Sensory, Neural, and Behavioral Physiology·Janna L MahoneyGlen M Watson
Oct 19, 2004·Cell and Tissue Research·Peter M ZhadanSalim S Dautov
Mar 3, 2007·Journal of the Association for Research in Otolaryngology : JARO·Glen M WatsonPatricia Mire
Jun 1, 2000·Hearing Research·P MireS Venable-Thibodeaux
Jul 29, 2000·Hearing Research·G M Watson, S Venable-Thibodeaux
Jan 15, 2002·Hearing Research·Patricia Mire, Jason Nasse
Feb 24, 1998·Hearing Research·G M WatsonR R Hudson
Oct 8, 1999·Hearing Research·G M WatsonJ J Repass
Oct 26, 2000·Proceedings of the National Academy of Sciences of the United States of America·M EddisonJ Lewis
Mar 10, 2009·Toxicon : Official Journal of the International Society on Toxinology·Peter A V Anderson, Christelle Bouchard
Apr 7, 2005·Hearing Research·Jens MeyerAnthony W Gummer
Aug 5, 2016·The Journal of Experimental Biology·Pei-Ciao TangGlen M Watson
Nov 7, 2018·The Journal of Experimental Biology·Allison CampbellPatricia Mire
Aug 12, 2014·Current Opinion in Otolaryngology & Head and Neck Surgery·Kevin W Christie, Daniel F Eberl
Dec 31, 2019·Philosophical Transactions of the Royal Society of London. Series B, Biological Sciences·Luis Alberto Bezares-CalderónGáspár Jékely
May 3, 2014·Otology & Neurotology : Official Publication of the American Otological Society, American Neurotology Society [and] European Academy of Otology and Neurotology·Jacob Seth McAfeeBarry Strasnick

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