The physiology and biochemistry of zooxanthellae symbiotic with marine coelenterates III. The effect of homogenates of host tissues on the excretion of photosynthetic products in vitro by zooxanthellae from two marine coelenterates

作者：Robert K. Trench · 发表于：Proceedings of the Royal Society B Biological Sciences · 年份：1971 · DOI：10.1098/rspb.1971.0026 · 被引用次数：156 · 研究领域：Protist diversity and phylogeny、Marine Biology and Ecology Research、Microbial Community Ecology and Physiology

Abstract When freshly isolated zooxanthellae from Anthopleura elegantissima were incubated in NaH14CO3 in the light in a homogenate of tissues of their animal hosts they excreted much more organic 14C than when incubated in sea water only. The homogenate of aposymbiotic (algae-free) animals could enhance excretion by the algae only after the animals had become infected with zooxanthellae. On prolonged isolation, zooxanthellae from A. elegantissima and Zoanthus pacifica excrete progressively less of the 14C fixed in photosynthesis. Return of algae from A. elegantissima after extended isolation to host homogenate causes the release of similar amounts of 14C as freshly isolated algae, but with marked qualitative and quantitative differences in the distribution of 14C.