新疆农业科学 ›› 2021, Vol. 58 ›› Issue (2): 276-281.DOI: 10.6048/j.issn.1001-4330.2021.02.009

• 生理生化·园艺特产·土壤肥料·贮藏保鲜加工·设施农业 • 上一篇    下一篇

哈密瓜叶色黄绿突变体Cmygl-1快速叶绿素荧光诱导动力学特性

刘会芳, 韩宏伟, 王强, 庄红梅, 王浩   

  1. 新疆农业科学院园艺作物研究所,乌鲁木齐 830091
  • 出版日期:2021-02-20 发布日期:2021-01-29
  • 通信作者: 王强(1983-),男,甘肃人,副研究员,研究方向为蔬菜栽培与逆境生理,(E-mail)wangqiang201004@sina.com
    王浩(1970-),男,山东人,研究员,研究方向为蔬菜栽培,(E-mail)wanghao183@163.com
  • 作者简介:刘会芳(1989-),女,新疆人,研究实习员,研究方向为蔬菜栽培与逆境生理,(E-mail)568899051@qq.com
  • 基金资助:
    新疆维吾尔自治区自然科学基金“哈密瓜叶色黄化突变基因的克隆与功能分析”(2019D01B35);新疆农业科学院青年基金“哈密瓜叶色黄化突变体光合特性分析及候选基因定位”(xjnkq-2018003)

Studies on the Fast Chlorophyll Fluorescence Induction Dynamics in a New Yellow Green Leaf Mutant Cantaloupe(Cmygl-1)

LIU Huifang, HAN Hongwei, WANG Qiang, ZHUANG Hongmei, WANG Hao   

  1. Institute of Horticultural Crops, Xinjiang Academy of Agricultural Sciences, Urumqi 830091, China
  • Online:2021-02-20 Published:2021-01-29
  • Correspondence author: WANG Qiang (1983-), male, Gansu Province, researcher associate, direction: physiology and stress of vegeTable cultivation in facilities,(E-mail)wangqiang201004@sina.com
    WANG Hao (1970-), male, Shandong Province, researcher, direction: facility vege Table cultivation and physiology,(E-mail)wanghao183@163.com
  • Supported by:
    Supported by The Natural Science Foundation of Xinjiang Uygur Autonomous Region "Cloning and Functional Analysis of Leaf Color Yellowation Mutant Gene of Hami Melon" (2019D01B35), and the Youth Foundation Project of Xinjiang Academy of Agricultural Sciences "Photosynthetic Characteristics Analysis and Candidate Gene Localization of Leaf Color Yellowation Mutant of Hami Melon" (xjnkq-2018003)

摘要: 【目的】研究哈密瓜叶色黄绿突变体Cmygl-1的快速叶绿素荧光诱导动力学特性。【方法】 以突变体Cmygl-1及其野生型近等基因系为试材,构建遗传分离群体,分析突变体的快速叶绿素荧光诱导动力学特性。【结果】 突变体材料的O-J-I-P标准化曲线中J-I相抬高,且叶片ABS/RC增加而ABS/CSo降低,说明PSII数量减少。相对可变荧光ΔVt曲线和ΔWk曲线ΔL–band和ΔK–band均大于0,且叶片TRo/RC与野生型相同而ETo/RC降低,反应活性也大幅降低。反应中心虽能吸收较多能量,但能够捕获的很少,能够传递到电子传递链中的更少,其余均通过热耗散形式散失了。【结论】 最终导致PSII最大光化学效率φRo和综合性能指数PI(abs)降低。

关键词: 哈密瓜; 叶色黄绿突变体; 快速叶绿素荧光诱导动力学曲线

Abstract: 【Objective】 To explore the dynamic characteristics of rapid chlorophyll fluorescence induction of yellow-green mutant Cmygl-1 in cantaloupe leaves.【Method】 The mutant Cmygl-1 and its wild-type near-isogene line were used as test materials to analyze the dynamic characteristics of rapid chlorophyll fluorescence induction of mutant by constructing a genetic isolation population.【Result】 The results showed that the mutant materials J-I phase elevated the O-J-I-P standard curve, and the ABS/RC increased but ABS/CSo decreased in blade, which revealed that the number of PSII decreased. On the Variable fluorescence ΔVt and ΔWk curves,ΔL-band and ΔK-band were greater than zero, and the TRo/RC was the same as the wild type with ETo/RC decreased in blade, which revealed that the reactivity was also greatly reduced. Although the reaction center could absorb more energy, but it captured less, and transferred less to the electron transport chain, and the rest was lost in the form of heat dissipation.【Conclusion】 This eventually leads to the decrease of maximum photochemical efficiency (φRo) and comprehensive performance index of PI (abs) in the PSII.

Key words: cantaloupe; leaf yellow-green mutant; fast chlorophyll fluorescence induction dynamics

中图分类号: 


ISSN 1001-4330 CN 65-1097/S
邮发代号:58-18
国外代号:BM3342
主管:新疆农业科学院
主办:新疆农业科学院 新疆农业大学 新疆农学会

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