| 释义 |
scotophil, a. Biol.|ˈskəʊtəʊfɪl|
Also skoto-, -phile.
[ad. G. skotophil (E. Bünning 1944, in Flora CXXXVIII. 95): see scoto-2 and -phil, -phile.]
Applied to that phase of the circadian cycle of a plant or animal during which light inhibits, or does not influence, reproductive activity; opp. photophil, -phile s.v. photo- 1.
1952, etc. [see photophil adj. s.v. photo- 1]. 1959F. W. Went in R. B. Withrow Photoperiodism & Related Phenomena in Plants & Animals VII. 554 The leaf angle..is small in the scotophil and large in the photophil phase. 1960Cold Spring Harbor Symp. Quantitative Biol. XXV. 257 In this part of the rhythm the endodiurnal system is in the scotophile state according to Bünning... The second scotophile phase is hardly weaker than the first one. 1971New Scientist 29 July 254/2 The circadian rhythm [of house finches] was imagined to comprise two half cycles.., one of which was reckoned to be dark-requiring (scotophil). 1972Nature 21 Apr. 407/1 The state..during which light has a promotive effect on flowering..and the state during which light is innocuous..could be respectively the photophil and skotophil phases of Bünning.
Hence scotoˈphilic a., scotophile; scoˈtophily, the state of an organism in a scotophile phase.
1960Cold Spring Harbor Symp. Quantitative Biol. XXV. 265/1 According to this view long and short day effects depend on whether the photoperiod of light break coincides with the ‘scotophilic’ phase during the second half-cycle. 1960Scotophily [see photophily s.v. photo- 1]. 1976Sci. Amer. Feb. 115/2 He proposed that the measurement of the length of the day or the night was accomplished by an endogenous, or built-in, daily rhythm that consisted of two half-cycles, one photophilic (‘light-loving’) and the other scotophilic (‘dark-loving’). |