| 释义 |
rheotaxisenUK
rhe·o·tax·is R0217600 (rē′ə-tăk′sĭs)n. Movement of an organism in response to a current of water.
rhe′o·tac′tic (-tăk′tĭk) adj.rheotaxis (ˌriːəˈtæksɪs) n (Biology) movement of an organism towards or away from a current of water rheotactic adjrheotaxisthe tendency of certain living things to move in response to the mechanical stimulus of a current of water.See also: Motion
the tendency of some plants to respond to a current of water by growing with it (positive rheotaxis) or against it (negative rheotaxis).See also: Water
RheotaxisenUK
rheotaxis[¦rē·ə¦tak·səs] (biology) Movement of a motile cell or organism in response to the direction of water currents. Rheotaxis the property of certain lower plants (myxomycetous plasmodia), unicellular animals (flagellates, infusorians), and cells (spermatozoa) to move in a direction opposite to the current of a fluid. rheotaxisenUK
rheotaxis [re″o-tak´sis] orientation of an organism in a stream of liquid, with its long axis parallel with the direction of flow, designated negative (moving in the same direction) or positive (moving in the opposite direction).rhe·o·tax·is (rē'ō-tak'sis), A form of positive barotaxis, in which a microorganism in a fluid is impelled to move against the current flow of its medium. [rheo- + G. taxis, orderly arrangement] rheotaxis (rē′ə-tăk′sĭs)n. Movement of an organism in response to a current of water.
rhe′o·tac′tic (-tăk′tĭk) adj.rhe·o·tax·is (rē'ō-tak'sis) A form of positive barotaxis in which a microorganism in a fluid is impelled to move against the current flow of its medium. [rheo- + G. taxis, orderly arrangement]rheotaxis a movement (taxis) in response to a current, usually of water. |