当前位置： SCI文献检索 > SAUDI JOURNAL OF BIOLOGICAL SCIENCES期刊下所有文献 > Gibberellin disturbs the balance of endogenesis hormones and inhibits adventitious root development of Pseudostellaria heterophylla through regulating gene expression related to hormone synthesis.

Gibberellin disturbs the balance of endogenesis hormones and inhibits adventitious root development of Pseudostellaria heterophylla through regulating gene expression related to hormone synthesis.

Abstract：

:The adventitious roots of some plants will develop into tuberous roots which are widely used in many traditional Chinese medicines, including Pseudostellaria heterophylla. If adventitious root development is inhibited, the yield of Chinese medicinal materials will be reduced. Gibberellic acid is an important phytohormone that promotes plant growth and increases the resistance to drought, flood or disease. However, the effects of gibberellic acid on adventitious roots of Pseudostellaria heterophylla are not clear. Here, we reports GA3 suppressed adventitious root development of Pseudostellaria heterophylla by disturbing the balance of endogenesis hormones. By detecting the contents of various endogenous hormones, we found that the development of adventitious roots negatively correlated with the content of CA3 in tuberous roots. Exogenous GA3 treatment decreased the diameter of adventitious roots, but increased the length of adventitious roots of Pseudostellaria heterophylla. In contrast, blocking the biosynthesis of GA3 suppressed stem growth and promoted the xylem of tuberous roots development. Moreover, exogenous GA3 treatment resulted in imbalance of endogenesis hormones by regulating their synthesis-related genes expression in xylem of tuberous roots. These results suggest GA3 broke the established distribution of hormones by regulating synthesis, transport and biological activation of hormones to activate the apical meristem and suppress lateral meristem. Regulating GA3 signaling during adventitious roots development would be one of the possible ways to increase the yield of P. heterophylla.

journal_name

Saudi J Biol Sci

journal_title

Saudi journal of biological sciences

authors

Zhang J,Zhou T,Zhang C,Zheng W,Li J,Jiang W,Xiao C,Wei D,Yang C,Xu R,Gong A,Bi Y

doi

10.1016/j.sjbs.2020.09.022

subject

Has Abstract

pub_date

2021-01-01 00:00:00

pages

135-147

issue

eissn

1319-562X

issn

2213-7106

pii

S1319-562X(20)30429-0

journal_volume

pub_type

杂志文章

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Gibberellin disturbs the balance of endogenesis hormones and inhibits adventitious root development of Pseudostellaria heterophylla through regulating gene expression related to hormone synthesis.