GREEN FLAGELLAR AUTOFLUORESCENCE IN BROWN ALGAL SWARMERS AND THEIR PHOTOTACTIC RESPONSES
GREEN FLAGELLAR AUTOFLUORESCENCE IN BROWN ALGAL SWARMERS AND THEIR PHOTOTACTIC RESPONSES
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DOI：
10.1007/bf02489413
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发表时间：
1992-03-01
期刊：
影响因子：
--
通讯作者：
KAWAI, H
中科院分区：
文献类型：
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作者：
KAWAI, H
一种黄素样的绿色自荧光物质出现在黄藻科、黄藻科、尾藻科、黄藻科和原藻科鞭毛细胞的鞭毛中。在藻群中，自身荧光发生在整个体长的后鞭毛。它被认为与趋光性的光接受有关，因为它几乎总是发生在具有鞭毛肿胀和柱头并显示趋光性的蜂群中。在藻群中，柱头显示为凹面反射镜，将反射光聚焦到鞭毛肿胀处。在作用光谱研究中，藻群在370 ~ 520 nm之间表现出趋光性，在420或430 nm和450或460 nm处有两个主峰。他们的反应是真正的趋光性，而不是恐光性。蜂群的旋转被证明是必不可少的光接收的Ectocarpus配子。
A flavin-like green autofluorescent substance is noticed to occur in one of the flagella of flagellated cells in the Phaeophyceae, Chrysophyceae, Synurophyceae, Xanthophyceae and Prymnesiophyceae. In the phaeophycean swarmers the autofluorescence occurs in the posterior flagellum throughout its length. It is considered to be involved in the photoreception of phototaxis, since it almost always occurs in the swarmers which have a flagellar swelling and stigma and show phototaxis. In the phaeophycean swarmers, the stigma is shown to act as a concave reflector mirror focusing the reflection light onto the flagellar swelling. In the action spectrum studies, phaeophycean swarmers showed phototaxis between 370 and 520 nm, having two major peaks at 420 or 430 nm and 450 or 460 nm. Their responses were true phototactic and not photophobic. Rotation of the swarmer was shown to be essential in the photoreception of Ectocarpus gametes.