2021年2月24日 · Abscisic acid (ABA) plays an important role in plant abiotic stress responses, and ABA INSENSITIVE 4 (ABI4) is a pivotal transcription factor in the ABA signaling pathway. In Arabidopsis, ABI4 negatively regulates salt tolerance; however, the mechanism through which ABI4 regulates plant salt tolerance is poorly understood.

2020年3月10日 · ABI4通过直接调控众多靶标基因，参与多种植物激素途径和生物学过程. 论文重点阐述的转录因子Abscisic acid Insensitive 4 (ABI4)，最初被证明是脱落酸 (ABA)信号途径中的一个正调控因子。 而目前越来越多的研究证明，除ABA通路，ABI4还参与对其他多种植物激素的生物合成、失活和信号转导通路的调控，进而在植物多个关键发育阶段中发挥重要作用，如调控种子休眠和萌发、种子萌发后幼苗建成、种子内脂质代谢、主根及侧根发生与发育、以及生殖生长转 …

Here, we report that ABI4 positively regulates primary seed dormancy, while negatively regulating cotyledon greening, by mediating the biogenesis of ABA and GA. Seeds of the Arabidopsis abi4 mutant that were subjected to short-term storage (one or two weeks) germinated significantly more quickly than Wild-Type (WT), and abi4 cotyledons greened ...

2022年8月22日 · The Arabidopsis transcription factor ABSCISIC ACID INSENSITIVE 4 (ABI4) is a key player in the plant hormone abscisic acid (ABA) signaling pathway and is involved in plant response to abiotic stress and development. Expression of the ABI4 gene is tightly regulated, with low basal expression. …

2013年3月1日 · In several processes, ABI4 is an essential ABA signaling component required for the response to ABA, such as its role in the synthesis and breakdown of lipids. However, there are several processes where ABI4 seems to act ABA independently, including controlling photosynthesis, lateral root development, sugar-directed growth arrest, and redox ...

2020年3月7日 · In this review, we summarize current understanding of the sophisticated ABI4-mediated molecular networks, mainly focusing on diverse phytohormone (including ABA, gibberellin, cytokinin, ethylene, auxin, and jasmonic acid) crosstalks.

2024年2月8日 · Here, we showed that TF PHYTOCHROME-INTERACTING FACTOR4 (PIF4) physically interacted with the abscisic acid (ABA) signaling responsive TF ABSCISIC ACID INSENSITIVE4 (ABI4) to act as a transcriptional complex to promote ABA biosynthesis and signaling, finally deepening primary seed dormancy.

本文阐述了aba通过调节拟南芥中abi4-cyclin依赖性激酶b2;2(cdkb2;2)/cyclin b1;1 (cycb1;1)模块介导的细胞周期和生长素生物合成来抑制主根的生长。 aba诱导abi4在主根尖转录，abi4突变体在主根生长中表现为aba不敏感表型。

2014年3月20日 · 3 月 13 日 ，中国科学院上海生命科学研究院植物生理生态研究所 滕胜研究组在 PLoS Genetics 上 在线发表题为 The ABI4-Induced Arabidopsis ANAC060 Transcription Factor Attenuates ABA Signaling and Renders Seedlings Sugar Insensitive when Present in the Nucleus …

In this study, we discovered that ABSCISIC ACID INSENSITIVE 4 (ABI4) acts down-stream of DES1 in the control of ABA responses in Arabidopsis. ABI4 undergoes persulfidation at Cys250 that is triggered in a time-dependent manner by ABA, and loss of …