132,173-Cyclopheophorbide b enol as a catabolite of chlorophyll b in phycophagy by protists
132,173-Cyclopheophorbide b enol as a catabolite of chlorophyll b in phycophagy by protists
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132,173-环脱镁叶绿酸苯酚作为原生生物藻类吞噬中叶绿素 b 的分解代谢物
DOI：
10.1016/j.febslet.2013.06.036
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发表时间：
2013
期刊：
影响因子：
--
通讯作者：
Tadashi Mizoguchi and Hitoshi Tamiaki
中科院分区：
文献类型：
--
作者：
Yuichiro Kashiyama;Akiko Yokoyama;Takashi Shiratori;Isao Inouye;Yusuke Kinoshita;Tadashi Mizoguchi and Hitoshi Tamiaki
132,173‐环磷二酚和苯酚都是在含有叶绿素的绿色微藻和中心体原生生物（噬藻）的摄入下产生的。结果表明，叶绿素和叶绿素在原菌的光合作用过程中被直接降解为有色但无光毒性的分解产物。捕食者的这种简单过程与陆地植物和一些藻类的复杂叶绿素降解过程形成鲜明对比，在这些过程中，叶绿素的光毒性通过多个酶的步骤被消除，产生无色和无光毒性的分解产物。
Both 132,173‐cyclopheophorbideaandbenols were produced along with ingestion of green microalgae containing chlorophyllsaandbby a centrohelid protist (phycophagy). The results suggest that chlorophyllbas well as chlorophyllawere directly degraded to colored yet non‐phototoxic catabolites in the protistan phycophagic process. Such a simple process by the predators makes a contrast to the much sophisticated chlorophyll degradation process of land plants and some algae, where phototoxicity of chlorophylls was cancelled through the multiple enzymatic steps resulting in colorless and non‐phototoxic catabolites.