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The endogenous plant hormones and ratios regulate sugar and dry matter accumulation in Jerusalem artichoke in salt-soil

文献类型： 外文期刊

作者： Li, Lingling 1 ; Shao, Tianyun 1 ; Yang, Hui 1 ; Chen, Manxia 1 ; Gao, Xiumei 1 ; Long, Xiaohua 1 ; Shao, Hongbo 2 ; Liu, 1 ;

作者机构： 1.Nanjing Agr Univ, Coll Resources & Environm Sci, Nanjing 210095, Jiangsu, Peoples R China

2.Jiangsu Acad Agr Sci, Inst Agrobiotechnol, Nanjing 210014, Jiangsu, Peoples R China

3.Chinese Acad Sci, Yantai Inst Coastal Zone Res, Yantai 264003, Peoples R China

4.Univ Western Australia, Sch Earth & Environm, Soil Sci & Plant Nutr, 35 Stirling Highway, Crawley, WA 6009, Australia

关键词： Jerusalem artichoke;Sugar;Endogenous hormones;Tuber formation;Salt-soil

期刊名称：SCIENCE OF THE TOTAL ENVIRONMENT （ 影响因子：7.963； 五年影响因子：7.842 ）

ISSN：

年卷期：

页码：

收录情况： SCI

摘要： The changes in content of endogenous hormones in stolons and tubers of Jerusalem artichoke (Helianthus tuberosus L.) regulate tuber growth, but the specific knowledge about the importance of balance among the endogenous hormones is lacking. Two varieties of Jerusalem artichoke (NY-1 and QY-2) were tested for the endogenous zeatin (ZT), auxins (IAA), gibberellins (GA(3)) and abscisic acid (ABA) in regulating sugar and dry matter accumulation in tubers. The dry matter content and sugar accumulation in tubers were correlated positively with endogenous ZT and negatively with GA3 content and GA(3)/ABA and IAA/ABA content ratios. Throughout the tuber formation, ZT content was higher in NY-1 than QY-2 tubers, whereas ABA content was higher in QY-2 than NY-1 tubers. The content ratios GA3/ABA and IAA/ABA were greater in NY-1 than QY-2 before tuber initiation, but QY-2 surpassed NY-1 during the tuber growth stage. The GA3/ABA and IAA/ABA content ratios declined during tuber growth. The results suggested that a dynamic balance of endogenous hormones played an important role in tuber development. (C) 2016 Elsevier B.V. All rights reserved.

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