Photochemical and antioxidative responses of the glume and flag leaf to seasonal senescence in wheat

文献类型： 外文期刊

第一作者： Kong, Lingan

作者： Kong, Lingan;Sun, Mingze;Xie, Yan;Wang, Fahong;Zhao, Zhendong;Sun, Mingze

作者机构：

关键词： antioxidative defense;chlorophyll fluorescence;non-photochemical quenching;ultrastructure;wheat;xanthophyll cycle

期刊名称：FRONTIERS IN PLANT SCIENCE （ 影响因子：5.753； 五年影响因子：6.612 ）

ISSN： 1664-462X

年卷期： 2015 年 6 卷

页码：

收录情况： SCI

摘要： The non-leaf photosynthetic organs have recently attracted much attention for the breeding and screening of varieties of cereal crops to achieve a high grain yield. However, the glume photosynthetic characteristics and responses to high temperature at the late stages of grain filling are not well known in winter wheat (Triticum aestivum L.). In the present study, an experiment was conducted to investigate the anatomy, chloroplast temporal changes, chlorophyll fluorescence, xanthophyll cycle and antioxidative defense system in glumes of field-grown wheat during grain filling compared with flag leaves. Observations using a light microscope revealed that the glumes developed a solid structural base for performing photosynthesis. Compared with the flag leaves, the glumes preserved a more integral ultrastructure, as observed under transmission electron microscopy, and had higher values of Fv/Fm and Phi(PSII) at the maturity stage. Further analysis of the chlorophyll fluorescence demonstrated that the glumes experienced high non-photochemical quenching (NPQ) at the late stages. Determination of the pool size of the xanthophyll cycle suggested that the (A+Z)/(V+A+Z) ratio was consistently higher in glumes than in flag leaves and that the V+A+Z content was considerably higher in glumes at the maturity stage. In addition, the glumes exhibited a higher antioxidant enzyme activity and a lower accumulation of reactive oxygen species. These results suggest that the glumes are photosynthetically active and senesce later than the flag leaves; the advantages may have been achieved by coordinated contributions of the structural features, higher NPQ levels, greater de-epoxidation of the xanthophyll cycle components and antioxidative defense metabolism.

分类号：

  • 相关文献

[1]Ferredoxin-quinone reductase benefits cyclic electron flow around photosystem 1 in tobacco leaves upon exposure to chilling stress under low irradiance. Li, X. -G.,Xu, P. -L.,Zhao, J. -P.,Meng, J. -J.,He, Q. -W.. 2006

[2]Comparison of the photosynthetic characteristics in the pericarp and flag leaves during wheat (Triticum aestivum L.) caryopsis development. Kong, L. A.,Xie, Y.,Si, J. S.,Hu, L.,Sun, M. Z..

[3]Some photosynthetic responses to salinity resistance are transferred into the somatic hybrid descendants from the wild soybean Glycine cyrtoloba ACC547. Yang, Yong,Yan, Cheng-Qi,Cao, Bao-Hua,Xu, Hong-Xia,Chen, Jian-Ping,Jiang, De-An.

[4]Leaf chloroplast ultrastructure and photosynthetic properties of a chlorophyll-deficient mutant of rice. Wu, Z. M.,Zhang, X.,Wang, J. L.,Wan, J. M.. 2014

[5]Photosynthetic Characteristics of a Super High Yield Cultivar of Winter Wheat During Late Growth Period. Meng Qing-wei,Tian Ji-chun,Zhao Shi-jie,Sui Na,Li Meng. 2010

[6]EFFECTS OF SEEDING DEPTH ON SUBCROWN INTERNODE ELONGATION AND GRAIN YIELD IN WHEAT. Kong, Lingan,Sun, Mingze,Wang, Fahong,Sun, Mingze.

[7]Effect of citric acid on phytoextraction and antioxidative defense in Solanum nigrum L. as a hyperaccumulator under Cd and Pb combined pollution. Xia, Jun,Miao, Chiyuan,Gao, Yang,Mao, Liang,Zhou, Pei,Shi, Wanjun,Luo, Chunyan. 2012

[8]Glutathione homeostasis and Cd tolerance in the Arabidopsis sultr1;1-sultr1;2 double mutant with limiting sulfate supply. Liu, Xiang,Wu, Fei-Hua,Chen, Juan,Wang, Guang-Hui,Hu, Wen-Jun,Simon, Martin,Zheng, Hai-Lei,Wu, Fei-Hua,Li, Jing-Xi,Gao, Li-Jie,Wang, Zong-Ling,Chen, Jun-Hui,Hu, Wen-Jun,Wang, Wen-Hua.

[9]Effects of cold-hardening on chilling-induced photoinhibition of photosynthesis and on xanthophyll cycle pigments in sweet pepper. Liu, P,Meng, QW,Zou, Q,Zhao, SJ,Liu, QZ.

[10]The susceptibility of cucumber and sweet pepper to chilling under low irradiance is related to energy dissipation and water-water cycle. Li, XG,Meng, QW,Jiang, GQ,Zou, Q.

[11]Assessment of Photochemical Reflectance Index as a Tool for Evaluation of Chlorophyll Fluorescence Parameters in Cotton and Peanut Cultivars Under Water Stress Condition. Shahenshah,Akihiro, Isoda,Yoshizumi, Yasuda,Li Mao-song. 2010

[12]Roles of xanthophylls and exogenous ABA in protection against NaCl-induced photodamage in rice (Oryza sativa L) and cabbage (Brassica campestris). Zhu, Su-Qin,Chen, Ming-Wei,Liang, Jian-Sheng,Zhu, Su-Qin,Ji, Ben-Hua,Jiao, De-Mao.

[13]Relationships between D1 protein, xanthophyll cycle and photodamage-resistant capacity in rice (Orysa sativa L.). Ji, BH,Jiao, DM.

[14]Xanthophyll Cycle and Inactivation of Photosystem II Reaction Centers Alleviating Reducing Pressure to Photosystem I in Morning Glory Leaves under Short-term High Irradiance. Li, Xin-Guo,Li, Jian-Yong,Zhao, Jin-Ping,Xu, Ping-Li,He, Qi-Wei.

[15]An integration of photosynthetic traits and mechanisms that can increase crop photosynthesis and grain production. Black, CC,Tu, ZP,Counce, PA,Yao, PF,Angelov, MN. 1995

[16]Roles of the transthylakoid proton gradient and xanthophyll cycle in the non-photochemical quenching of the green alga Ulva linza. Zhang, Xiaowen,Mou, Shanli,Cao, Shaona,Fan, Xiao,Xu, Dong,Ye, Naihao.

[17]Mutations of genes in synthesis of the carotenoid precursors of ABA lead to pre-harvest sprouting and photo-oxidation in rice. Fang, Jun,Chai, Chenglin,Li, Chunlai,Tang, Jiuyou,Huang, Zejun,Guo, Xiaoli,Sun, Changhui,Liu, Min,Wang, Yiqin,Cheng, Zhukuan,Chu, Chengcai,Fang, Jun,Chai, Chenglin,Li, Chunlai,Tang, Jiuyou,Huang, Zejun,Guo, Xiaoli,Sun, Changhui,Liu, Min,Wang, Yiqin,Cheng, Zhukuan,Chu, Chengcai,Fang, Jun,Chai, Chenglin,Li, Chunlai,Tang, Jiuyou,Huang, Zejun,Guo, Xiaoli,Qian, Qian,Sun, Lei,Zhang, Yan,Lu, Qingtao,Lu, Congming,Han, Bin,Chen, Fan.

[18]DEFICIENCY OF PHYTOCHROME B ALLEVIATES CHILLING-INDUCED PHOTOINHIBITION IN RICE. Yang, Jian-Chao,Han, Guo-Liang,Sui, Na,Wang, Bao-Shan,Li, Meng,Xie, Xian-Zhi. 2013

[19]Effects of heat and high irradiance stress on energy dissipation of photosystem II in low irradiance-adapted peanut leaves. Guo, F.,Yang, S.,Zhang, J. L.,Meng, J. J.,Li, X. G.,Feng, Y.,Wan, S. B..

[20]Photoinhibition and photooxidation in leaves of indica and japonica rice under different temperatures and light intensities. Ji, BH,Jiao, DM. 2001

作者其他论文 更多>>

微信小程序