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Кстати, насчет умирания герпетологии.
Сегодня вышла статья в Nature (один из лучших! биологических журналов), первый автор в статье, судя по фамилии, из России:
Molecular basis of infrared detection by
snakes
Elena O. Gracheva1*, Nicolas T. Ingolia2,3,4*, Yvonne M. Kelly1, Julio F. Cordero-Morales1, Gunther Hollopeter1{,
Alexander T. Chesler1, Elda E. Sa´nchez5, John C. Perez5, Jonathan S. Weissman2,3,4 & David Julius1,2
Snakes possess a unique sensory system for detecting infrared radiation, enabling them to generate a ‘thermal image’ of
predators or prey. Infrared signals are initially received by the pit organ, a highly specialized facial structure that is
innervated by nerve fibres of the somatosensory system. How this organ detects and transduces infrared signals into nerve
impulses is not known. Here we use an unbiased transcriptional profiling approach to identify TRPA1 channels as infrared
receptors on sensory nerve fibres that innervate the pit organ. TRPA1 orthologues from pit-bearing snakes (vipers, pythons
and boas) are the most heat-sensitive vertebrate ion channels thus far identified, consistent with their role as primary
transducers of infrared stimuli. Thus, snakes detect infrared signals through a mechanism involving radiant heating of the pit
organ, rather than photochemical transduction. These findings illustrate the broad evolutionary tuning of transient receptor
potential (TRP) channels as thermosensors in the vertebrate nervous system.
1Department of Physiology, 2Department of Cellular and Molecular Pharmacology, 3Howard Hughes Medical Institute, 4California Institute for Quantitative Biosciences, University of
California, San Francisco, California 94158-2517, USA. 5Natural Toxins Research Center, Texas A&M University- Kingsville, Texas 78363, USA. {Present address: Department of
Biology, University of Utah, 257 South 1400 East, Salt Lake City, Utah 84112-0840, USA.
Изменено 18-3-2010 автор Parhit