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出典(authority):フリー百科事典『ウィキペディア(Wikipedia)』「2017/11/06 10:10:17」(JST)
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Thermotaxis is a behavior in which an organism directs its locomotion up or down a gradient of temperature.
Lab research has determined that some slime molds[1] and small nematodes (namely Meloidogyne incognita)[2] can migrate along amazingly shallow temperature gradients of less than 0.1C/cm and sometimes as low as 0.001C/cm.[3] Theoretical analysis indicates that even this impressive feat is far from pushing the limits set by thermal noise.[4] The natural environment always contains temperature gradients that organisms could respond to, if it were useful. The response of the slime mold and nematode is complicated and thought to allow them to move toward an appropriate level in soil.[5][6][7] Recent research suggests that mammalian sperm employ thermotaxis to move to an appropriate location in the female's oviduct (see Sperm guidance).
References
- ^ Poff and Skokut, Proceedings of the National Academy of Sciences, USA, 74: 2007-2010 (1977). Thermotaxis by pseudoplasmodia of Dictyostelium discoideum.
- ^ Pline, Diez, and Dusenbery, J. Nematology, 20:605-608 (1988). Extremely sensitive thermotaxis of the nematode Meloidogyne incognita.
- ^ Dusenbery, David B. (1992). Sensory Ecology, p.114. W.H. Freeman, New York. ISBN 0-7167-2333-6.
- ^ Dusenbery, David B. (2009). Living at Micro Scale, pp.159-163. Harvard University Press, Cambridge, Mass. ISBN 978-0-674-03116-6.
- ^ Dusenbery, D.B. Behavioral Ecology and Sociobiology, 22:219-223 (1988). Avoided temperature leads to the surface.
- ^ Dusenbery, D.B. Biological Cybernetics, 60:431-437 (1989). A simple animal can use a complex stimulus pattern to find a location.
- ^ Dusenbery, David B. (1996). “Life at Small Scale”, pp. 101-109. Scientific American Library, New York. ISBN 0-7167-5060-0.
English Journal
- Thermotaxis navigation behavior.
- Goodman MB1, Klein M, Lasse S, Luo L, Mori I, Samuel A, Sengupta P, Wang D.Author information 1Department of Molecular and Cellular Physiology, Stanford University School of Medicine, Stanford CA, USA. mbgoodman@stanford.edu.AbstractThis chapter describes four different protocols used to assay thermotaxis navigation behavior of single, or populations of, C. elegans hermaphrodites on spatial thermal gradients within the physiological temperature range (15-25°C). A method to assay avoidance of noxious temperatures is also described.
- WormBook : the online review of C. elegans biology.WormBook.2014 Feb 20:1-10. doi: 10.1895/wormbook.1.168.1.
- This chapter describes four different protocols used to assay thermotaxis navigation behavior of single, or populations of, C. elegans hermaphrodites on spatial thermal gradients within the physiological temperature range (15-25°C). A method to assay avoidance of noxious temperatures is also descri
- PMID 24563245
- Bidirectional thermotaxis in Caenorhabditis elegans is mediated by distinct sensorimotor strategies driven by the AFD thermosensory neurons.
- Luo L1, Cook N, Venkatachalam V, Martinez-Velazquez LA, Zhang X, Calvo AC, Hawk J, Macinnis BL, Frank M, Ng JH, Klein M, Gershow M, Hammarlund M, Goodman MB, Colón-Ramos DA, Zhang Y, Samuel AD.Author information 1Key Laboratory of Modern Acoustics, Ministry of Education, Department of Physics, Nanjing University, Nanjing 210093, China.AbstractThe nematode Caenorhabditis elegans navigates toward a preferred temperature setpoint (Ts) determined by long-term temperature exposure. During thermotaxis, the worm migrates down temperature gradients at temperatures above Ts (negative thermotaxis) and performs isothermal tracking near Ts. Under some conditions, the worm migrates up temperature gradients below Ts (positive thermotaxis). Here, we analyze positive and negative thermotaxis toward Ts to study the role of specific neurons that have been proposed to be involved in thermotaxis using genetic ablation, behavioral tracking, and calcium imaging. We find differences in the strategies for positive and negative thermotaxis. Negative thermotaxis is achieved through biasing the frequency of reorientation maneuvers (turns and reversal turns) and biasing the direction of reorientation maneuvers toward colder temperatures. Positive thermotaxis, in contrast, biases only the direction of reorientation maneuvers toward warmer temperatures. We find that the AFD thermosensory neuron drives both positive and negative thermotaxis. The AIY interneuron, which is postsynaptic to AFD, may mediate the switch from negative to positive thermotaxis below Ts. We propose that multiple thermotactic behaviors, each defined by a distinct set of sensorimotor transformations, emanate from the AFD thermosensory neurons. AFD learns and stores the memory of preferred temperatures, detects temperature gradients, and drives the appropriate thermotactic behavior in each temperature regime by the flexible use of downstream circuits.
- Proceedings of the National Academy of Sciences of the United States of America.Proc Natl Acad Sci U S A.2014 Feb 18;111(7):2776-81. doi: 10.1073/pnas.1315205111. Epub 2014 Feb 3.
- The nematode Caenorhabditis elegans navigates toward a preferred temperature setpoint (Ts) determined by long-term temperature exposure. During thermotaxis, the worm migrates down temperature gradients at temperatures above Ts (negative thermotaxis) and performs isothermal tracking near Ts. Under so
- PMID 24550307
- Gustatory receptors: not just for good taste.
- Montell C.Author information Neuroscience Research Institute and the Department of Molecular, Cellular and Developmental Biology, University of California Santa Barbara, Santa Barbara, CA 93106, USA. Electronic address: craig.montell@lifesci.ucsb.edu.AbstractA recent study has found that a Drosophila gustatory receptor is required for thermotaxis. With other fly gustatory receptors having been shown to act in the detection of CO2, nutrients in the brain, and light, the roles of the so-called 'gustatory receptors' clearly go way beyond peripheral detection of non-volatile chemicals.
- Current biology : CB.Curr Biol.2013 Oct 21;23(20):R929-32. doi: 10.1016/j.cub.2013.09.026.
- A recent study has found that a Drosophila gustatory receptor is required for thermotaxis. With other fly gustatory receptors having been shown to act in the detection of CO2, nutrients in the brain, and light, the roles of the so-called 'gustatory receptors' clearly go way beyond peripheral detect
- PMID 24156814
Japanese Journal
- 石渡 信吾,岡 駿資,倉本 真
- 形の科学会誌 = Bulletin of the Society for Science on Form 27(2), 88-89, 2012-11-01
- NAID 10031134215
- 線虫 Caenorhabditis elegans の温度応答を制御する神経情報処理メカニズム
- 大西 憲幸,久原 篤
- 比較生理生化学 29(3), 112-120, 2012-09-20
- 感覚や記憶・学習といった高次神経活動を制御する神経情報処理の基本原理の解明は,現代神経科学の重要な課題である。神経情報処理の解明に向けたアプローチとして,わずか302個からなるシンプルな神経回路を持つ線虫Caenorhabditis elegans(C. elegans)をモデル系とした解析が行われている。C. elegansは,シンプルな神経回路をもちいて,様々な外部刺激を感知し,多様な応答行 …
- NAID 10031123310
- Copine A is expressed in prestalk cells and regulates slug phototaxis and thermotaxis in developing Dictyostelium
- Flegel Kerry A.,Pineda Jaimie M.,Smith Tasha S. [他],LASZCZYK Ann M.,PRICE Janet M.,KARASIEWICZ Kristen M.,DAMER Cynthia K.
- Development, growth & differentiation 53(8), 948-959, 2011-10-11
- NAID 10030403983
Related Links
- Thermotaxis is a behavior in which an organism directs its locomotion up or down a gradient of temperature. Lab research has determined that some slime molds and small nematodes (namely Meloidogyne incognita) can migrate along ...
- thermotaxis /ther·mo·tax·is/ (-tak´sis). 1. normal adjustment of bodily temperature. 2. movement of an organism in response to an increase in temperature.thermotac ´ticthermotax´ic. ther·mo·tax·is (thûr m -t k s s). n. pl. ther·mo·tax·es (-t k s z). 1.
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