No post-drought compensatory growth of corns with root cutting based on cytokinin induced by roots
文献类型： 外文期刊
作者： Wang, Xiao-Ling 1 ; Qin, Rong-Rong 1 ; Sun, Run-Hong 2 ; Wang, Jing-Jing 1 ; Hou, Xiao-Gai 1 ; Qi, Lin 1 ; Shi, Jiang; 1 ;
作者机构： 1.Henan Univ Sci & Technol, Coll Agron, Luoyang 471003, Henan, Peoples R China
2.Henan Acad Agr Sci, Inst Plant Protect Res, Henan Key Lab Control Crop Dis & Insect Pests, IPM Key Lab Southern Part North China,Minist Agr, Zhengzhou 450002, Henan,
关键词： Corn; Cytokinin; Compensatory growth during post-drought; rewatering; Seedling stage; Root cutting; Deep roots
期刊名称：AGRICULTURAL WATER MANAGEMENT （ 影响因子：4.516； 五年影响因子：5.12 ）
ISSN： 0378-3774
年卷期： 2018 年 205 卷
页码：
收录情况： SCI
摘要： The effect of shallow and deep roots on compensatory growth of potted corn seedlings during post-drought rewatering was investigated on the basis of leaf cytokinin induced by roots. Two treatment conditions, namely, root cutting and nitrate (NO3-) addition, were used in the study. Results showed that drought stress retained corn growth. In the absence of root cutting, rewatering increased the net photosynthetic rates of corn and induced compensatory growth. However, under root cutting, no compensatory growth occurred in the rewatered corns. In the absence of root cutting, significantly higher zeatin riboside (ZR) concentrations in the leaves and xylem saps were recorded under rewatering treatment than under wet treatment. However, these results were not observed under root cutting owing to loss of deep roots. Furthermore, corns with deep roots added with NO3- showed significantly higher ZR concentration in the leaves and xylem saps than those with shallow roots added with NO3-. High leaf cytokinin concentration is known to induce rapid corn growth. Thus, no compensatory growth occurred during post-drought rewatering in corns with few deep roots, likely due to lack of leaf cytokinin enhancement induced by deep roots.
- 相关文献
作者其他论文 更多>>
-
Improving dryland maize productivity and water efficiency with heterotrophic ammonia-oxidizing bacteria via nitrification and cytokinin activity
作者：Wang, Xiaoling;Cao, Jiawei;Liu, Wei;Qi, Lin;Song, Peng;Sun, Runhong;Yang, Shenjiao
关键词：Heterotrophic ammonia -oxidizing bacteria; Rhizosphere soil nitrification; Cytokinin; Maize; Dryland agriculture
-
Increasing corn compensatory growth upon post-drought rewatering using ammonia-oxidising bacterial strain inoculation
作者：Wang, Xiao-Ling;Wu, Di;Qi, Lin;Liu, Yu-Hua;Shi, Jiang;Li, Xue-Lin;Song, Peng;Zhang, Li-Xia;Sun, Run-Hong
关键词：Ammonia-oxidising bacteria strain; Soil nitrification; Corn; Compensatory growth; Cytokinin; Post-drought rewatering
-
Effects of Soil Nitrification on Compensatory Growth upon Post-Drought Rewatering of Corns Based on Cytokinin
作者：Wang, Xiao-Ling;Qi, Lin;Shi, Jiang;Li, Xue-Lin;Zhang, Li-Xia;Duan, Pei-Ling;Sun, Run-Hong
关键词：Soil nitrification; Corn; Compensatory growth; Cytokinin; Seedling stage; Rewatering upon drought stress
-
Selection of Reference Genes for Real-time Quantitative PCR Normalization in the Process of Gaeumannomyces graminis var. tritici Infecting Wheat
作者：Xie, Li-hua;Quan, Xin;Yang, Yan-yan;Sun, Run-hong;Xia, Ming-cong;Xue, Bao-guo;Wu, Chao;Han, Xiao-yun;Yang, Li-rong;Xue, Ya-nan
关键词：geNorm; housekeeping gene; Triticum aestivum; TUB beta
-
Effects of plant population density and root-induced cytokinin on the corn compensatory growth during post-drought rewatering
作者：Wang, Xiao-Ling;Qin, Rong-Rong;Hou, Xiao-Gai;Qi, Lin;Sun, Run-Hong;Shi, Jiang
关键词：
-
Correlation of the corn compensatory growth mechanism after post-drought rewatering with cytokinin induced by root nitrate absorption
作者：Wang, Xiao-Ling;Wang, Jing-Jing;Hou, Xiao-Gai;Zhao, Wei;Shi, Jiang;Zhang, You-Fu;Qi, Lin;Li, Xue-Lin;Dong, Pu-Hui;Zhang, Li-Xia;Xu, Guo-Wei;Gan, Hong-Bing;Sun, Run-Hong
关键词：Corn;Cytokinin;Compensatory growth;Rewatering;Drought stress;Seedling stage;Nitrate ion
