The epigenetic regulator ULTRAPETALA1 suppresses de novo root regeneration from Arabidopsis leaf explants.
The epigenetic regulator ULTRAPETALA1 suppresses de novo root regeneration from Arabidopsis leaf explants.
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表观遗传调节因子 ULTRAPETALA1 抑制拟南芥叶外植体的从头再生
DOI:
10.1080/15592324.2022.2031784
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发表时间:
2022-12-31
影响因子:
2.9
通讯作者:
Müller-Xing R
中科院分区:
文献类型:
--
作者:
Tian J;Xing Q;Jing T;Fan X;Zhang Q;Müller-Xing R
ABSTRACT Plants have the potency to regenerate adventitious roots from aerial organs after detachment. In Arabidopsis thaliana, de novo root regeneration (DNRR) from leaf explants is triggered by wounding signaling that rapidly induces the expression of the ETHYLENE RESPONSE FACTOR (ERF) transcription factors ERF109 and ABR1 (ERF111). In turn, the ERFs promote the expression of ASA1, an essential enzyme of auxin biosynthesis, which contributes to rooting by providing high levels of auxin near the wounding side of the leaf. Here, we show that the loss of the epigenetic regulator ULTRAPETALA1 (ULT1), which interacts with Polycomb and Trithorax Group proteins, accelerates and reinforces adventitious root formation. Expression of ERF109 and ASA1 was increased in ult1 mutants, whereas ABR1 was not significantly changed. Cultivation of explants on media with exogenous auxin equates adventitious root formation in wild-type with ult1 mutants, suggesting that ULT1 negatively regulates DNRR by suppressing auxin biosynthesis. Based on these findings, we propose that ULT1 is involved in a novel mechanism that prevents overproliferation of adventitious roots during DNRR.
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影响因子:
6.9
作者:
Chen L;Tong J;Xiao L;Ruan Y;Liu J;Zeng M;Huang H;Wang JW;Xu L
通讯作者:
Xu L
影响因子:
18
作者:
Zhang, Guifang;Zhao, Fei;Xu, Lin
通讯作者:
Xu, Lin
影响因子:
11.6
作者:
Liu, Fei;Zhang, Hui;Xiang, Yong
通讯作者:
Xiang, Yong
影响因子:
7.2
作者:
Atta, Ramzy;Laurens, Lieve;Chriqui, Dominique
通讯作者:
Chriqui, Dominique
影响因子:
11.6
作者:
Liu, Jingchun;Sheng, Lihong;Xu, Lin
通讯作者:
Xu, Lin