棉花花青素能量耗散过程维持光合机构稳定性分析

doi:10.6048/j.issn.1001-4330.2021.05.002

新疆农业科学 ›› 2021, Vol. 58 ›› Issue (5): 794-801.DOI: 10.6048/j.issn.1001-4330.2021.05.002

• 作物遗传育种·种质资源·分子遗传学·耕作栽培·生理生化 • 上一篇下一篇

棉花花青素能量耗散过程维持光合机构稳定性分析

李霞飞¹, 李自良¹, 贾梦梦¹, 陈云瑞¹, 向导², 张旺锋¹, 张亚黎¹

1.石河子大学农学院/新疆生产建设兵团绿洲生态农业重点实验室,新疆石河子 832003;
2.新疆乌兰乌苏农业气象试验站/乌兰乌苏国家综合气象观测专项试验外场,新疆乌兰乌苏 832199

收稿日期:2020-07-01 出版日期:2021-05-20 发布日期:2021-05-26
通信作者: 张亚黎(1983-),男,安徽阜阳人,教授,博士生导师,研究方向为棉花生理,(E-mail)zhangyali_cn@foxmail.com
作者简介:李霞飞(1993-),女,甘肃平凉人,硕士研究生,研究方向为作物栽培,(E-mail)lixiafei_cn@foxmail.com
基金资助:
国家自然科学基金(31860355):石河子大学青年创新人才培育计划(CXRC201701)

Cotton Can Protect Photosynthetic Mechanism through Energy Dissipation Processes That Rely on Anthocyanins

LI Xiafei¹, LI Ziliang¹, JIA Mengmeng¹, CHEN Yunrui¹, XIANG Dao², ZHANG Wangfeng¹, ZHANG Yali¹

1. Key Laboratory of Oasis Eco-Agriculture, Xinjiang Production and Construction Crops, Shihezi University, Shihezi Xinjiang 832003, China;
2. Wulanwusu Agro-Meteorological Experiment Station of Xinjiang, Wulanwusu Xinjiang 832199, China

Received:2020-07-01 Online:2021-05-20 Published:2021-05-26
Correspondence author: ZHANG Yali(1983-),male,professor,doctoral supervisor, research interest: photosynthesis and stress in cotton,(E-mail)zhangyali_cn@foxmail.com
Supported by:
Project of National Natural Science Foundation of China (31860355) and Youth Innovation Project of Shihezi University (CXRC201701)

摘要/Abstract

摘要： 【目的】研究棉花花青素能量耗散过程维持光合机构稳定性。【方法】选取花青素含量差异较大的棉花为材料,测定花青素含量、光合色素含量、气体交换参数、叶绿素荧光参数、NDH介导的环式电子流活性、ATP合成酶活性、玉米黄质的合成速率等。【结果】随花青素含量升高,吸光能力逐渐增强,而净光合速率逐渐减弱,将面临较多的过剩激发能;NDH介导的环式电子流活性均逐渐增强,并且环式电子调控的ATP合成也逐渐增强;相对于无花青素的棉花,花青素存在的条件下,叶黄素循环的热耗散明显较弱,并且随花青素含量的增多,叶黄素循环的过程逐渐减弱,可能花青素的耗散能力逐渐增强。【结论】花青素能够作为一种光保护机制起到耗散过剩光能有效保护PSI和PSII。

关键词: 花青素; 环式电子传递; 叶黄素循环的热耗散; 光合性能

Abstract: 【Objective】 Cotton Can Protect Photosynthetic Mechanism through Energy Dissipation Processes That Rely on Anthocyanins. 【Methods】 In this study, cotton with big difference in anthocyanin content was selected as the experimental material, the anthocyanin content, photosynthetic pigment content, gas exchange parameters, chlorophyll fluorescence parameters, total cyclic electron flow activity, NDH-mediated cyclic electron flow activity, ATP synthase activity, zeaxanthin synthesis rate were measured. 【Results】 With the increase of anthocyanin content, the light absorption capacity was gradually enhanced, while the net photosynthetic rate was gradually weakened, so there were more excess excitation energy. At this time, the total cyclic electron flow and NDH mediated cyclic electron flow were gradually enhanced, and the cyclic electron regulated ATP synthesis was also gradually enhanced. Compared with the anthocyanin-free cotton, the heat dissipation of the lutein cycle was obviously weak under the presence of anthocyanin, and the process of the lutein cycle was gradually weakened with the increase of anthocyanin content, and the dissipation capacity of anthocyanin might be gradually enhanced. 【Conclusion】 Therefore, anthocyanins can effectively protect PSI and PSII by dissipating excess light as a photoprotection mechanism.

Key words: anthocyanins; cyclic electron flow; heat dissipation in the lutein cycle; photoprotection

中图分类号:

S562

李霞飞, 李自良, 贾梦梦, 陈云瑞, 向导, 张旺锋, 张亚黎. 棉花花青素能量耗散过程维持光合机构稳定性分析[J]. 新疆农业科学, 2021, 58(5): 794-801.

LI Xiafei, LI Ziliang, JIA Mengmeng, CHEN Yunrui, XIANG Dao, ZHANG Wangfeng, ZHANG Yali. Cotton Can Protect Photosynthetic Mechanism through Energy Dissipation Processes That Rely on Anthocyanins[J]. Xinjiang Agricultural Sciences, 2021, 58(5): 794-801.

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棉花花青素能量耗散过程维持光合机构稳定性分析

Cotton Can Protect Photosynthetic Mechanism through Energy Dissipation Processes That Rely on Anthocyanins

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