دورية أكاديمية
أعرض في EDS

Abscisic acid regulates stomatal production by imprinting a SnRK2 kinase-mediated phosphocode on the master regulator SPEECHLESS.

التفاصيل البيبلوغرافية
العنوان: Abscisic acid regulates stomatal production by imprinting a SnRK2 kinase-mediated phosphocode on the master regulator SPEECHLESS.
المؤلفون: Yang X; Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, Singapore 117557, Singapore., Gavya S L; Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, Singapore 117557, Singapore., Zhou Z; Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, Singapore 117557, Singapore., Urano D; Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, Singapore 117557, Singapore.; Temasek Life Sciences Laboratory, 1 Research Link, Singapore 117604, Singapore., Lau OS; Department of Biological Sciences, National University of Singapore, 14 Science Drive 4, Singapore 117557, Singapore.
المصدر: Science advances [Sci Adv] 2022 Oct 07; Vol. 8 (40), pp. eadd2063. Date of Electronic Publication: 2022 Oct 07.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: American Association for the Advancement of Science Country of Publication: United States NLM ID: 101653440 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 2375-2548 (Electronic) Linking ISSN: 23752548 NLM ISO Abbreviation: Sci Adv Subsets: PubMed not MEDLINE; MEDLINE
أسماء مطبوعة: Original Publication: Washington, DC : American Association for the Advancement of Science, [2015]-
مستخلص: Stomata, the epidermal pores for gas exchange between plants and the atmosphere, are the major sites of water loss. During water shortage, plants limit the formation of new stoma via the phytohormone abscisic acid (ABA) to conserve water. However, how ABA suppresses stomatal production is largely unknown. Here, we demonstrate that three core SnRK2 kinases of ABA signaling inhibit the initiation and proliferation of the stomatal precursors in Arabidopsis . We show that the SnRK2s function within the precursors and directly phosphorylate SPEECHLESS (SPCH), the master transcription factor for stomatal initiation. We identify specific SPCH residues targeted by the SnRK2s, which mediate the ABA/drought-induced suppression of SPCH and stomatal production. This SnRK2-specific SPCH phosphocode connects stomatal development with ABA/drought signals and enables the independent control of this key water conservation response. Our work also highlights how distinct signaling activities can be specifically encoded on a master regulator to modulate developmental plasticity.
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تواريخ الأحداث: Date Created: 20221007 Latest Revision: 20221025
رمز التحديث: 20231215
مُعرف محوري في PubMed: PMC9544323
DOI: 10.1126/sciadv.add2063
PMID: 36206348
قاعدة البيانات: MEDLINE
الوصف
تدمد:2375-2548
DOI:10.1126/sciadv.add2063