华北农学报 ›› 2014, Vol. 29 ›› Issue (2): 146-151. doi: 10.7668/hbnxb.2014.02.027

所属专题: 水稻

• 论文 • 上一篇    下一篇

增强UV-B辐射对水稻叶绿素荧光特性的影响

乔媛1, 殷红1, 李虎2, 杨振兴1, 高敏3   

  1. 1 沈阳农业大学 农学院 辽宁 沈阳 110866;
    2 民航新疆空中交通管理局 新疆 乌鲁木齐 830016;
    3 辽宁省义县农业技术推广中心 辽宁 义县 121100
  • 收稿日期:2013-11-09 出版日期:2014-04-28
  • 通讯作者: 殷红(1968-),女,河南郾城人,副教授,博士,主要从事气候变化对农业生产影响的研究。
  • 作者简介:乔媛(1987-),女,北京人,在读硕士,主要从事生物气象研究。
  • 基金资助:
    辽宁省教育厅重点实验室项目(LS2010146)

Influence of Enhanced UV-B Radiation on Chlorophyll Fluorescence Characteristics of Rice

QIAO Yuan1, YIN Hong1, LI Hu2, YANG Zhen-xing1, GAO Min3   

  1. 1 College of Agronomy, Shenyang Agricultural University, Shenyang 110866, China;
    2 Air Traffic Management Bureau of Civil Aviation, Urumqi 830016, China;
    3 Agricultural Technological Promotion Center, Yixian 121100
  • Received:2013-11-09 Published:2014-04-28

摘要: 以沈农265水稻为试材,自然光为对照,研究了2种增强紫外辐射处理下(分别增加5%和10%),水稻不同生育时期光合色素含量和叶绿素荧光动力学参数的变化特征。研究结果显示,两处理下的叶绿素含量在拔节期减少最多,叶绿素a分别下降13.87%和23.30%,叶绿素b分别下降10.76%和17.70%;而类胡萝卜素含量均有所增加,其中抽穗期增幅最大,分别比对照增加了21.55%和31.02%。2种处理下的PSⅡ原初光能转换效率(Fv/Fm)在灌浆期下降最多,分别比对照下降了4.4%和7.83%;PSⅡ潜在活性(Fv/Fo)也比对照降低了9.02%和17.03%;实际量子产量(ΦPSⅡ)在抽穗期降幅较大,但处理间差异不显著(P<0.05);2种处理下的光化学荧光淬灭系数(qP)均有所降低,且降幅随生育进程逐渐减小;2种处理下的非光化学荧光淬灭(NPQ)在各生育时期的变化截然相反,分别比对照升高和降低。

关键词: 水稻, UV-B, 叶绿素, 荧光参数

Abstract: It was used to investigate the contents of photosynthetic pigment and the characteristics of chloro- phyll fluorescence kinetics parameters in the different growth stages of rice(Shennong 265) at different treatments (UV radiation intensity increased by 5% and 10% respectively), compared with natural lighting. Results showed that the contents of chlorophyll-a and chlorophyll-b were diminished significantly in the jointing stage. The content of chlorophyll-a was diminished by 13. 87% and 23. 30% respectively. The content of chlorophyll-b was diminished by 10. 76% and 17. 70% respectively. The contents of carotenoids were increased by 21. 55% and 31. 02% respec- tively, especially in the heading stage. The intrinsic photochemical efficiency (Fv/Fm) of two treatments was dimin- ished by 4. 4% and 7. 83% respectively in the filling stage, and the potential activities (Fv/Fo) were diminished by 9. 02% and 17. 03% respectively. Decreasing amplitude of effective quantum yield (ΦPSⅡ ) in the heading stage was higher than other stages, but there had no significant difference between treatments (P < 0. 05) . Photochemical quenching (qP) reduced significantly in the two treatments, and the influence was waning with growth process. Non- photochemical quenching (NPQ) of T1 increased significantly, yet NPQ of T2 reduced significantly.

Key words: Rice, UV-B, Chlorophyll, Fluorescence parameters

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引用本文

乔媛, 殷红, 李虎, 杨振兴, 高敏. 增强UV-B辐射对水稻叶绿素荧光特性的影响[J]. 华北农学报, 2014, 29(2): 146-151. doi: 10.7668/hbnxb.2014.02.027.

QIAO Yuan, YIN Hong, LI Hu, YANG Zhen-xing, GAO Min. Influence of Enhanced UV-B Radiation on Chlorophyll Fluorescence Characteristics of Rice[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2014, 29(2): 146-151. doi: 10.7668/hbnxb.2014.02.027.

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