权益分类	功能权益	普通用户	{{item.name}}会员
{{category.name}}	{{benefitItem.name}}

Photo reception of Algae Related to Chemical Ecology

与化学生态相关的藻类的照片接收

基本信息

批准号：
04305006
负责人：
TSUJIMOTO Kazuo
金额：
$ 5.25万
依托单位：
JAPAN ADVANCED INSTITUTE OF SCIENCE & TECHNOLOGY, HOKURIKU (1993)The University of Electro-Communications (1992)
依托单位国家：
日本
项目类别：
Grant-in-Aid for Co-operative Research (A)
财政年份：
1992
资助国家：
日本
起止时间：
1992 至 1993
项目状态：
已结题

来源：
https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-04305006/
关键词：
carotenoid photoreceptron phototaxis algae chlamydomonas eye-spot ecology chlorephyll 光走性シグナル伝達物質

项目摘要

1. Carotenoids Carotenes in Bryopsis maxima consist of alpha-carotene with very small amount of beta-carotene. Interaction bet ween fucoxanthin and chl orohyll was elu cidat ed with use of synthesi zed anaogs, iso lation of the related protein, and measurement of fluorescence life time.2. Phototaxis of Algae and the Phototransductive Compounds Phototransductive compound in algae was fund to be c-AMP.Another photoreceptive compound in brown algae was suggested as flavin derivatives. The other possibility was proposed in photoreception of cryptomonas whose phototaxsis is mediated by unidentified photoreceptors other than phycobilins. Chlamydomonas mutant photomoves under absorbing light if it is reconstituted with retinal analogs. The movement was detected with otion analysis apparatus newly developed.3. Structure of Eye Spot and Regeneration of Phototaxis Blue light induced the sexual reproduction of chlamydomonas. The polarizing microscopeis a powerful tool to identify the eye spot of chlamydomonas. Photohobic response was controlled with nitrogen sources.4. Chemical Ecology of Deep-water Green Alga The molar ratio of chlorophyll b/a was determined tp be 1.61 in the pigments extracted from green algae.

1.Bryopsis Maxima中的类胡萝卜素由α-胡萝卜素和非常少量的β-胡萝卜素组成。通过合成类似物、分离相关蛋白、测定荧光寿命，研究了岩藻黄质与叶绿素的相互作用。藻类的趋光性和藻类中的光传导化合物被认为是c-AMP，另一种褐藻中的光受体化合物被认为是黄素的衍生物。另一种可能性是隐单胞菌的光接受，其趋光性是由藻胆蛋白以外的未知光感受器介导的。如果衣藻突变株与视网膜类似物重组，它会在吸收光的情况下移动。用新研制的OTO分析仪检测运动情况。眼斑结构和趋光性蓝光诱导衣藻有性繁殖偏光显微镜是鉴定衣藻眼斑的有力工具。氮源对疏光反应有抑制作用。深水绿藻的化学生态学测定了绿藻色素中叶绿素b/a的摩尔比tp=1.61。