Changes in Endogenous Hormone Content During the Germination Process of Phyllostachys edulis Seeds
In order to investigate the content changes of endogenous hormones during the germination of Phyllostachys edulis seeds,34 kinds of endogenous hormones were determined by liquid chroma-tography-tandem mass spectrometry(LC-MS/MS).In gibberellin(GA)hormones,the contents of GA3,GA24 and GAs increased first and then decreased,while the contents of GA7 showed an up-down-up trend.Among auxin hormones,the contents of Me-IAA,IAA and ICA showed an up-down-up trend,while the contents of IC-AId showed a downward trend.In cytokinin,the contents of CZ,TZ,DZ and TZR increased first and then decreased,while the contents of IP decreased gradually.The contents of jasmonic acid hormones(JA,JA-ILE)increased gradually.Abscisic acid(ABA)showed a wavy trend.ACC showed an'up-down-up'trend,BR showed a downward trend,salicylic acid hormones first increased and then decreased,and the values of GAs/ABA,Auxin/ABA,CTKs/ABA and promoters/inhibitors all showed an'up-down-up'trend.Studies had shown that gibberellin hor-mones(GA3,GA7,GA24),cytokinins(TZR,CZ,TZ,DZ),salicylic acid hormones(SA,SAG),ACC,BR,CTK/ABA promoted radical breakthrough of seed coat,growth hormone(Me-IAA,IAA,ICA,IC-AId),jasmonic acid(JA,JA-ILE,OPDA),ACC,Auxin/ABA promoted root elon-gation process,and ABA had negative regulation of Phyllostachys edulis seed germination.
万方数据
维普
