Effects of early-fruit removal on endogenous cytokinins and abscisic acid in relation to leaf senescence in cotton

文献类型： 外文期刊

第一作者： Dong, Hezhong

作者： Dong, Hezhong;Niu, Yuehua;Kong, Xiangqiang;Luo, Zhen

作者机构：

关键词： Abscisic acid;Cotton;Cytokinins;Fruit removal;Leaf senescence

期刊名称：PLANT GROWTH REGULATION （ 影响因子：3.412； 五年影响因子：3.691 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： Numerous studies have shown that early-fruit removal enhances vegetative growth and development of cotton (Gossypium hirsutum L.). However, few studies have examined changes in leaf senescence and endogenous hormones due to fruit removal. The objective of this study was to determine the correlation between some endogenous phytohormones, particularly the cytokinins and abscisic acid (ABA), and leaf senescence following fruit removal. Cotton was grown in pots and in the field during 2005 and 2006. Two early-fruiting branches were excised from plants at squaring to form the fruit removal treatment while the non-excised plants served as control. Plant biomass, seed cotton yield, cytokinins and ABA levels in main-stem leaves and xylem sap as well as main-stem leaf photosynthetic rate (Pn) and chlorophyll (Chl) concentration were determined after removal or at harvest. Fruit removals increased the leaf area, root and shoot dry weight and plant biomass at 35 days after removal (DAR), whether in potted or field-grown cotton; under field conditions, it also improved plant biomass and seed cotton yield at harvest. The Pn and Chl concentration in excised plants were significantly higher than in control plants from 5 to 35 DAR, suggesting that fruit removal considerably delayed leaf senescence. Fruit-excised plants contained more trans-zeatin and its riboside (t-Z + t-ZR), dihydrozeatin and its riboside (DHZ + DHZR), and isopentenyladenine and its riboside (iP + iPA) but less ABA in both main-stem leaves and xylem sap than control plants from 5 to 35 DAR. These results suggest that removal of early fruiting branches delays main-stem leaf senescence, which can be attributed to increased cytokinin and/or reduced ABA. Cytokinin and ABA are involved in leaf senescence following early fruit removal.

分类号： S311

  • 相关文献

[1]Effects of cotton rootstock on endogenous cytokinins and abscisic acid in xylem sap and leaves in relation to leaf senescence. Dong, Hezhong,Li, Weijiang,Zhang, Dongmei,Dong, Hezhong,Niu, Yuehua. 2008

[2]Endogenous hormones and expression of senescence-related genes in different senescent types of maize. He, P,Osaki, M,Takebe, M,Shinano, T,Wasaki, J. 2005

[3]Effects of Soil Salinity and Plant Density on Yield and Leaf Senescence of Field-Grown Cotton. Zhang, H. J.,Dong, H. Z.,Li, W. J.,Zhang, D. M.,Zhang, H. J.. 2012

[4]Removal of early fruiting branches impacts leaf senescence and yield by altering the sink/source ratio of field-grown cotton. Chen, Yizhen,Dong, Hezhong,Chen, Yizhen,Kong, Xiangqiang,Dong, Hezhong,Kong, Xiangqiang,Dong, Hezhong. 2018

[5]Yield, quality and leaf senescence of cotton grown at varying planting dates and plant densities in the Yellow River Valley of China. Dong, HZ,Li, WJ,Tang, W,Li, ZH,Zhang, DM,Niu, YH. 2006

[6]Exogenous nitric oxide delays salt-induced leaf senescence in cotton (Gossypium hirsutum L.). Kong, Xiangqiang,Wang, Tao,Li, Weijiang,Tang, Wei,Zhang, Dongmei,Dong, Hezhong,Wang, Tao,Dong, Hezhong.

[7]Global analysis of the Gossypium hirsutum L. Transcriptome during leaf senescence by RNA-Seq. Min Lin,Chaoyou Pang,Shuli Fan,Meizhen Song,Hengling Wei,Shuxun Yu. 2015

[8]Isolation and expression profiling of GhNAC transcription factor genes in cotton (Gossypium hirsutum L.) during leaf senescence and in response to stresses. Syed Tariq Shah,Chaoyou Pang,Shuli Fan,Meizhen Song,Saima Arain,Shuxun Yu.

[9]Yield and economic benefits of late planted short-season cotton versus full-season cotton relayed with garlic. Lu, Hequan,Dai, Jianlong,Li, Weijiang,Tang, Wei,Zhang, Dongmei,Eneji, A. Egrinya,Dong, Hezhong.

[10]Digital image analysis of expansion growth of cultured cotton ovules with fibers and their responses to ABA. Fan, Ling,Lue, Meng,Ni, Zhi-Yong,Hu, Wen-Ran,Wang, Juan.

[11]Improved salt tolerance and delayed leaf senescence in transgenic cotton expressing the Agrobacterium IPT gene. Y.D. Liu,Z.J. Yin,J.W. YU,J. LI,H.L. WEI,X.L. HAN,F.F. SHEN.

[12]Salt Stress-induced Injury is Associated with Hormonal Alteration in Kentucky Bluegrass. Zhang, Xunzhong,Wu, Wenli,Ervin, Erik H.,Shang, Chao,Wu, Wenli,Harich, Kim. 2018

[13]ELEVATED ENDOGENOUS ISOPENTENYL ADENINE CONTENT IS CORRELATED WITH AN EXTREMELY SHOOTY RICE PHENOTYPE. ZHU, YX,QIN, RZ,SHAN, XY,CHEN, ZL.

[14]Relationships of endogenous plant hormones to accumulation of grain protein and starch in winter wheat under different post-anthesis soil water statusses. Xie, ZJ,Jiang, D,Cao, WX,Dai, TB,Jing, Q.

[15]Interactive effects of cytokinins, light, and sucrose on the phenotypes and the syntheses of anthocyanins and lignins in cytokinin overproducing transgenic Arabidopsis. Guo, JC,Hu, XW,Duan, RJ. 2005

[16]Dynamics of Endogenous Cytokinins during Phase Change in Malus domestica Borkh. Zhang, Xin Zhong,Zhao, Yong Bo,Wang, Guang Peng,Chang, Rui Feng,Li, Chun Min,Zhang, Xin Zhong,Shu, Huai Rui,Zhang, Xin Zhong. 2008

[17]Histological and Ultrastructural Observation Reveals Significant Cellular Differences between Agrobacterium Transformed Embryogenic and Non-embryogenic Calli of Cotton. Shang, Hai-Hong,Liu, Chuan-Liang,Zhang, Chao-Jun,Li, Feng-Lian,Hong, Wei-Dong,Li, Fu-Guang.

[18]Nitrogen rate and plant density effects on yield and late-season leaf senescence of cotton raised on a saline field. Dong, Hezhong,Li, Weijiang,Eneji, A. Egrinya,Zhang, Dongmei,Eneji, A. Egrinya. 2012

[19]Effects of pollination-prevention on leaf senescence and post-silking nitrogen accumulation and remobilization in maize hybrids released in the past four decades in China. Guo, Song,Chen, Fanjun,Yuan, Lixing,Mi, Guohua,Guo, Song.

[20]Molecular cloning and functional analysis of NAC family genes associated with leaf senescence and stresses in Gossypium hirsutum L.. Shah, Syed Tariq,Pang, Chaoyou,Hussain, Anwar,Fan, Shuli,Song, Meizhen,Zamir, Roshan,Yu, Shuxun. 2014

作者其他论文 更多>>

微信小程序