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DOI | 10.1038/s41467-019-13568-6 |
Responses of unicellular predators to cope with the phototoxicity of photosynthetic prey | |
[unavailable] | |
2019-12-06 | |
发表期刊 | Nature Communications
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出版年 | 2019 |
卷号 | 10 |
文章类型 | Article |
语种 | 英语 |
英文摘要 | Feeding on unicellular photosynthetic organisms by unicellular eukaryotes is the base of the aquatic food chain and evolutionarily led to the establishment of photosynthetic endosymbionts/organelles. Photosynthesis generates reactive oxygen species and damages cells; thus, photosynthetic organisms possess several mechanisms to cope with the stress. Here, we demonstrate that photosynthetic prey also exposes unicellular amoebozoan and excavates predators to photosynthetic oxidative stress. Upon illumination, there is a commonality in transcriptomic changes among evolutionarily distant organisms feeding on photosynthetic prey. One of the genes commonly upregulated is a horizontally transferred homolog of algal and plant genes for chlorophyll degradation/detoxification. In addition, the predators reduce their phagocytic uptake while accelerating digestion of photosynthetic prey upon illumination, reducing the number of photosynthetic cells inside the predator cells, as this also occurs in facultative endosymbiotic associations upon certain stresses. Thus, some mechanisms in predators observed here probably have been necessary for evolution of endosymbiotic associations. |
领域 | 资源环境 |
URL | 查看原文 |
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文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/232470 |
专题 | 资源环境科学 |
推荐引用方式 GB/T 7714 | [unavailable]. Responses of unicellular predators to cope with the phototoxicity of photosynthetic prey[J]. Nature Communications,2019,10. |
APA | [unavailable].(2019).Responses of unicellular predators to cope with the phototoxicity of photosynthetic prey.Nature Communications,10. |
MLA | [unavailable]."Responses of unicellular predators to cope with the phototoxicity of photosynthetic prey".Nature Communications 10(2019). |
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