Phototaxis - Wikipedia
网页Phototaxis is a kind of taxis, or locomotory movement, that occurs when a whole organism moves towards or away from a stimulus of light. [2] This is advantageous for phototrophic organisms as they can orient themselves most efficiently to receive light for photosynthesis .
Phototaxis - an overview | ScienceDirect Topics
网页Phototaxis is the process in which an organism alters its motility in response to light stimuli. This phenomenon is widespread in biology, encompassing complex multicellular organisms, unicellular eukaryotes, bacteria, and archaea.
趋光性 - 维基百科，自由的百科全书
网页趋光性 （英語： Phototaxis）是一种 生物 对 光 靠近或者远离的 趋性。 [1] 生理. 在有趋光性的生物中，拥有正趋光性的会靠近光源，而有负趋光性的会躲避光线的 刺激。 [2] 这样对于 植物 等 自养生物 来说十分重要，因为趋光性可以帮助植物获得更多 阳光 以进行 光合作用 (植物的"正趨光性"稱為"向光性"，"负趨光性"稱為"背光性")。 飞蛾之类具有复眼的夜间飞行的昆虫，常被误认为具有趋光性，这是一个认知偏误。 虽然飞蛾在实际行为上表现为趋向 …
Evolution of phototaxis - PMC - National Center for Biotechnology ...
网页2009年10月10日 — Phototaxis, which allows orientation along a light vector in three dimensions, is unknown in prokaryotes. In contrast, in eukaryotes, it evolved at least eight times independently (table 1). Phototaxis appeared in these lineages after they evolved a planktonic lifestyle with ciliary swimming (with the exception of Dictyostelium) and a fixed ...
Phototaxis - an overview | ScienceDirect Topics
网页Phototaxis describes the movement of an organism either toward (positive phototaxis) or away (negative phototaxis) from a light stimulus. Early studies reported that zebrafish larvae display both positive and negative phototactic behavior but it appeared highly variable ( Brockerhoff et al., 1995; Gerlai, Lahav, Guo, & Rosenthal, 2000; Orger ...
Phototaxis: Life in focus | eLife
网页2016年2月9日 — Land plants are restricted to the location in which they germinate and grow, and individual plants are at the mercy of the light conditions where a given seed lands. However, some single-celled photosynthetic organisms exhibit behavior known as “phototaxis” that involves moving in response to local light conditions (Gualteri, 2001).
Phototaxis beyond turning: persistent accumulation and response ...
网页2017年6月14日 — Phototaxis is an important reaction to light displayed by a wide range of motile microorganisms. Flagellated eukaryotic microalgae in particular, like the model organism Chlamydomonas...
Complexity and plasticity in honey bee phototactic behaviour
网页2020年5月12日 — Phototaxis is the movement of an organism in response to light, whether it goes towards it (positive phototaxis) or away from it (negative phototaxis). It is widespread in the animal kingdom...
15.11.2: Taxis - Biology LibreTexts
网页2022年5月14日 — Phototaxis; Magnetotaxis; Some organisms respond to a stimulus by automatically moving directly toward or away from or at some defined angle to it. These responses are called taxes. They are similar to tropisms in plants except that actual locomotion of the entire organism is involved.
Phototaxis - an overview | ScienceDirect Topics
网页Chemotaxis, phototaxis, and magnetotaxis are movements of organisms stimulated by chemicals, light, and magnetic fields, respectively. A negative tactic response is called a phobic response; for example, negative phototaxis is also a photophobic response.