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光质对裙带菜配子体发育的影响
张栩¹, 李大鹏², 谭天伟¹
1.北京化工大学生命科学与技术学院,北京市生物加工过程重点实验室;2.中国科学院海洋研究所

摘要:

通过比较白光、蓝光和红光对裙带菜(Undaria pinnatifida)配子体发育为幼孢子体的影响,发现蓝光对配子体发育有促进作用;在光量子通量密度为40μmol/(m².s)的蓝光照射下,配子体在第10天基本全部形成卵囊或幼孢子体时,红光下配子体的发育率只有大约50%;蓝光辐射的能量主要是集中在波长400～500 nm(63%),当该范围的光量子数超过800μmol/cm²时,发育率达到了100%。

关键词: 裙带菜(Undaria pinnatifida) 配子体发育光质

DOI：

分类号:

基金项目:北京生物加工过程重点实验室开放项目(SYS100100421)

Effects of light quality on reproduction of gametophytes of Undaria pinnatifida

Abstract:

In this paper, male and female gametophytes of Undaria pinnatifida were mixed together from sporophytes under white, blue and red light. Under 40 μmol/(m²·s) blue light, all gametophytes of U. pinnatifida became fertile after 10 days′ cultivation. However, in red light treatment, approximately 50% of gametophytes began to fertilize. The percentage of quanta provided in the 400 to 500 nm region by blue light used in this work was about 63%. The fertility of gametophytes was determined by quantum doses in 400～500 nm. The fertility was 100% as soon as quantum doses exceeded 800 μmol/cm².

Key words: Undaria pinnatifida gametophytes reproduction light quality

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