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首页> 外文期刊>Proceedings of the National Academy of Sciences of the United States of America >Lycopene cyclase paralog CruP protects against reactive oxygen species in oxygenic photosynthetic organisms
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Lycopene cyclase paralog CruP protects against reactive oxygen species in oxygenic photosynthetic organisms

机译：番茄红素环化酶paralog CruP可以防止含氧光合生物中的活性氧

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摘要

Carotenoids with cyclic end groups play essential roles in photosynthesis and photo-protection. Understanding processes governing the formation and maintenance of cyclic carotenoids is essential for developing plants and algae that are capable of supplying food and fuels in the face of climate change-related stresses. CruP was previously suggested to be an accessory lycopene cyclase involved in catalyzing the formation of the cyclic carotenoid P-carotene (1). Here, we report that CruP instead confers increased fitness to oxygenic photosynthetic organisms under stress conditions by preventing accumulation of reactive oxygen species (ROS), thereby inhibiting the degradation of p-carotene. We find no evidence to support lycopene cyclase activity for CruP.
机译：具有环状端基的类胡萝卜素在光合作用和光保护中起重要作用。理解控制环状类胡萝卜素形成和维持的过程对于开发能够面对气候变化相关压力而能够提供食物和燃料的植物和藻类至关重要。以前有人认为CruP是一种辅助番茄红素环化酶，参与催化环状类胡萝卜素P-胡萝卜素的形成（1）。在这里，我们报告说，CruP可以通过防止活性氧（ROS）的积累，从而抑制对胡萝卜素的降解，从而在压力条件下赋予氧合光合生物更多的适应性。我们发现没有证据支持CruP的番茄红素环化酶活性。

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  • 作者

    Louis M. T. Bradbury; Maria Shumskaya; Oren Tzfadia; Shi-Biao Wu; Edward J. Kennelly; Eleanore T. Wurtzel;

  • 作者单位

    Department of Biological Sciences, Lehman College, City University of New York, Bronx, NY 10468;

    Department of Biological Sciences, Lehman College, City University of New York, Bronx, NY 10468;

    Department of Biological Sciences, Lehman College, City University of New York, Bronx, NY 10468 Graduate School and University Center, City University of New York, New York, NY 10016-4309;

    Department of Biological Sciences, Lehman College, City University of New York, Bronx, NY 10468;

    Department of Biological Sciences, Lehman College, City University of New York, Bronx, NY 10468 Graduate School and University Center, City University of New York, New York, NY 10016-4309;

    Department of Biological Sciences, Lehman College, City University of New York, Bronx, NY 10468 Graduate School and University Center, City University of New York, New York, NY 10016-4309;

  • 收录信息 美国《科学引文索引》(SCI);美国《生物学医学文摘》(MEDLINE);美国《化学文摘》(CA);
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