期刊
EUROPEAN JOURNAL OF PHYCOLOGY
卷 44, 期 3, 页码 365-375出版社
TAYLOR & FRANCIS LTD
DOI: 10.1080/09670260802710269
关键词
ascidian tunic; colour-niche; cyanobacteria; microhabitat; microspectrophotometry; R-phycoerythrin; ultrastructure
资金
- University of the Ryukyus
- Japan Society for the Promotion of Science [17GS0134]
- Salt Science Research Foundation [0426, 07B1]
Trididemnum clinides is a multi-photosymbiotic ascidian that inhabits shallow coral reef lagoons. Three types of cyanobacteria are harboured in the tunic of the ascidian colony; of these, two are unicellular coccoid cyanobacteria and the other is a multicellular filamentous type. They also differ in ultrastructure and distribution patterns within the host tunic. Microspectrophotometric analysis revealed the composition of photosynthetic pigments in each photosymbiont. One of the coccoid types is yellowish-green and is distributed under the colony surface. This photosymbiont cell preferentially absorbs red and blue light, and therefore the dominant colour in the inner tunic is green. The other two types of coexisting photosymbionts contain the green-light-absorbing R-phycoerythrin as the major photosynthetic pigment; they exploit the wavelengths of light not used by the first type of photosymbiont. In T. clinides, the outer and inner photosymbionts in the tunic have different photosynthetic pigments, which adapt to each microhabitat, thereby sharing the incident light resources effectively.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据