Study of light signal receptor of Stephanopyxis palmeriana during sexual reproduction

Study of light signal receptor of Stephanopyxis

palmeriana during sexual reproduction

佚名

【期刊名称】《中国海洋湖沼学报（英文版）》 【年(卷),期】2005(023)003

【摘要】We collected centric diatom Stephanopyxis palmeriana samples in coastal waters of Xiamen for characteristic red light/far red light (R/FR) phytochrome reactions to identify its photoreceptor in the course of sexual reproduction. The result showed that pre-illumination of 2-3h red light before darkness could induce sexualization of S.palmeriana, while the follow-up illumination of far red light could reverse the effect of red light, which is a featured reaction of phytochrome. The Southern Dot Blot was carried out to identify the type of phytochrome that induces the sexualization. The result also showed high homogeneity of DNA fragment of S. palmeriana with phyB, but phyA. This means the photoreceptor in the process of sexual reproduction of S. palmeriana is phytochrome B (phyB). 【总页数】5页(330-334)

【关键词】diatom;sexual reproduction;photoperiod;light signal receptor 【作者】佚名

【作者单位】Research Center of Hydrobiology, Jinan University, Guangzhou 510632, China;School of Life Science, Xiamen University,