<i>ABI5</i> acts downstream of miR159 to delay vegetative phase change in Arabidopsis

Guo, Changkui; Jiang, Youqi; Shi, Min; Wu, Xi; Wu, Gang

doi:10.1111/nph.17371

Cited by 39 publications

(40 citation statements)

References 34 publications

(66 reference statements)

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“…At the same time, miR159 can prevent the over-activation of miR156, thus regulating the phase transition of A. thaliana in vegetative developmental period (Guo et al, 2017). MYB33, the target of miR159, promotes the transcription of ABA INSENSITIVE 5 (ABI5) by binding directly to its promoter, then ABI5 plays a role in the upstream of miR156 and regulates the juvenile-to-adult transition in Arabidopsis by affecting the gene expression in the miR156-SPL pathway (Guo et al, 2021).…”

Section: The Role Of Mirnas In Flower Developmentmentioning

confidence: 99%

microRNAs and Their Roles in Plant Development

Dong

Zhang

2022

Front. Plant Sci.

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Small RNAs are short non-coding RNAs with a length ranging between 20 and 24 nucleotides. Of these, microRNAs (miRNAs) play a distinct role in plant development. miRNAs control target gene expression at the post-transcriptional level, either through direct cleavage or inhibition of translation. miRNAs participate in nearly all the developmental processes in plants, such as juvenile-to-adult transition, shoot apical meristem development, leaf morphogenesis, floral organ formation, and flowering time determination. This review summarizes the research progress in miRNA-mediated gene regulation and its role in plant development, to provide the basis for further in-depth exploration regarding the function of miRNAs and the elucidation of the molecular mechanism underlying the interaction of miRNAs and other pathways.

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Section: The Role Of Mirnas In Flower Developmentmentioning

confidence: 99%

microRNAs and Their Roles in Plant Development

Dong

Zhang

2022

Front. Plant Sci.

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“…The abi5 (SALK_013163, Col-0 background) mutant was a kind gift from Dr. Gang Wu (State Key Laboratory of Subtropical Silviculture, School of Agriculture and Food Sciences, Zhejiang Agriculture and Forestry University) [112]. The culturing condition was 24 C, 16/8 photoperiod [113].…”

Section: Plant Materials and Treatmentsmentioning

confidence: 99%

Genome-Wide Identification and Analysis of bZIP Gene Family and Resistance of TaABI5 (TabZIP96) under Freezing Stress in Wheat (Triticum aestivum)

Liang

Xia

Jiang

et al. 2022

IJMS

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The basic leucine zipper (bZIP) regulates plant growth and responds to stress as a key transcription factor of the Abscisic acid (ABA) signaling pathway. In this study, TabZIP genes were identified in wheat and the gene structure, physicochemical properties, cis-acting elements, and gene collinearity were analyzed. RNA-Seq and qRT-PCR analysis showed that ABA and abiotic stress induced most TabZIP genes expression. The ectopic expression of TaABI5 up-regulated the expression of several cold-responsive genes in Arabidopsis. Physiological indexes of seedlings of different lines under freezing stress showed that TaABI5 enhanced the freezing tolerance of plants. Subcellular localization showed that TaABI5 is localized in the nucleus. Furthermore, TaABI5 physically interacted with cold-resistant transcription factor TaICE1 in yeast two-hybrid system. In conclusion, this study identified and analyzed members of the TabZIP gene family in wheat. It proved for the first time that the gene TaABI5 affected the cold tolerance of transgenic plants and was convenient for us to understand the cold resistance molecular mechanism of TaABI5. These results will provide a new inspiration for further study on improving plant abiotic stress resistance.

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“…miR156 participated in abiotic stress response by repressing SPL9, which interacts with PRODUCTION OF ANTHOCYANIN PIGMENT 1 (PAP1) and also directly regulates DIHYDROFLAVONOL‐4‐REDUCTASE ( DFR ) expression to influence anthocyanin biosynthesis (Cui et al, 2015; Gou et al, 2011). ABI5 can promote miR156 level and then repress the expression of SPL9 to mediate vegetative phase change (Guo et al, 2021); and ABI5 physically interacts with SPL9, which is required for the function of SPL9 in activating ABA responses (Dong et al, 2021), indicating that ABI5 is involved in the balance between development and stress tolerance. Moreover, ABI5 also interacts with ELONGATED HYPOCOTYLE 5 (HY5) and MED19a to fine tune the stress and developmental response in Arabidopsis (Bhagat et al, 2021; Li et al, 2018; Wang et al, 2021).…”

Section: Discussionmentioning

confidence: 99%

The miR159‐MYB33‐ABI5 module regulates seed germination in Arabidopsis

Jiang¹,

Wu²,

Shi³

et al. 2022

Physiologia Plantarum

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Drought stress restricts crop productivity and exacerbates food shortages. The plant hormone, abscisic acid (ABA), has been shown to be a pivotal player in the regulation of drought tolerance and seed germination in plants. ABA accumulates under abiotic stresses to promote miR159 expression. miR159 is an ancient and conserved plant miRNA that plays diverse roles in plant development, seed germination, and drought response in Arabidopsis. Our previous studies demonstrated that miR159 regulates the vegetative phase change by repressing the ABI5 activation and thereafter preventing hyperactivation of miR156. However, whether the miR159‐MYB33‐ABI5 module plays a role in seed germination and drought response, and if so, how they interact genetically, remain largely unexplored. Here, we show that loss‐of‐function of miR159 (mir159ab) confers enhanced drought tolerance and hypersensitivity of seed germination to ABA. Genetic analyses demonstrated that loss‐of‐function mutation in the ABI5 gene suppresses the hypersensitivity of mir159ab to ABA, and the insensitivity of myb33 seeds to ABA treatment is ABI5 dependent. ABI5 functions downstream of MYB33 and miR159 in response to ABA. Therefore, our results uncover a new role for the miR159‐MYB33‐ABI5 module in the regulation of drought response and seed germination in plants.

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ABI5 acts downstream of miR159 to delay vegetative phase change in Arabidopsis

Cited by 39 publications

References 34 publications

microRNAs and Their Roles in Plant Development

microRNAs and Their Roles in Plant Development

Genome-Wide Identification and Analysis of bZIP Gene Family and Resistance of TaABI5 (TabZIP96) under Freezing Stress in Wheat (Triticum aestivum)

The miR159‐MYB33‐ABI5 module regulates seed germination in Arabidopsis

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