دورية أكاديمية
أعرض في EDS

ESR2-HDA6 complex negatively regulates auxin biosynthesis to delay callus initiation in Arabidopsis leaf explants during tissue culture.

التفاصيل البيبلوغرافية
العنوان: ESR2-HDA6 complex negatively regulates auxin biosynthesis to delay callus initiation in Arabidopsis leaf explants during tissue culture.
المؤلفون: Lee K; Department of Chemistry, Seoul National University, Seoul 08826, Korea; Research Institute of Basic Sciences, Seoul National University, Seoul 08826, Korea., Yoon H; Interdisciplinary Program in Agricultural Biotechnology, Seoul National University, Seoul 08826, Korea., Park OS; Plant Genomics and Breeding Institute, Seoul National University, Seoul 08826, Korea., Lim J; Department of Biological Sciences, KAIST, Daejeon 34141, Korea., Kim SG; Department of Biological Sciences, KAIST, Daejeon 34141, Korea., Seo PJ; Department of Chemistry, Seoul National University, Seoul 08826, Korea; Research Institute of Basic Sciences, Seoul National University, Seoul 08826, Korea; Interdisciplinary Program in Agricultural Biotechnology, Seoul National University, Seoul 08826, Korea; Plant Genomics and Breeding Institute, Seoul National University, Seoul 08826, Korea. Electronic address: pjseo1@snu.ac.kr.
المصدر: Plant communications [Plant Commun] 2024 Jul 08; Vol. 5 (7), pp. 100892. Date of Electronic Publication: 2024 Apr 02.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: Published by the Plant Communications Shanghai Office in association with Cell Press, an imprint of Elsevier Inc Country of Publication: China NLM ID: 101769147 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 2590-3462 (Electronic) Linking ISSN: 25903462 NLM ISO Abbreviation: Plant Commun Subsets: MEDLINE
أسماء مطبوعة: Original Publication: [Shanghai] : Published by the Plant Communications Shanghai Office in association with Cell Press, an imprint of Elsevier Inc., [2020]-
مواضيع طبية MeSH: Arabidopsis*/genetics , Arabidopsis*/metabolism , Arabidopsis Proteins*/metabolism , Arabidopsis Proteins*/genetics , Indoleacetic Acids*/metabolism , Plant Leaves*/metabolism, 2,4-Dichlorophenoxyacetic Acid/metabolism ; 2,4-Dichlorophenoxyacetic Acid/pharmacology ; Gene Expression Regulation, Plant ; Histone Deacetylases/metabolism ; Histone Deacetylases/genetics ; Tissue Culture Techniques ; Transcription Factors/metabolism ; Transcription Factors/genetics
مستخلص: Plants exhibit an astonishing ability to regulate organ regeneration upon wounding. Excision of leaf explants promotes the biosynthesis of indole-3-acetic acid (IAA), which is polar-transported to excised regions, where cell fate transition leads to root founder cell specification to induce de novo root regeneration. The regeneration capacity of plants has been utilized to develop in vitro tissue culture technologies. Here, we report that IAA accumulation near the wounded site of leaf explants is essential for callus formation on 2,4-dichlorophenoxyacetic acid (2,4-D)-rich callus-inducing medium (CIM). Notably, a high concentration of 2,4-D does not compensate for the action of IAA because of its limited efflux; rather, it lowers IAA biosynthesis via a negative feedback mechanism at an early stage of in vitro tissue culture, delaying callus initiation. The auxin negative feedback loop in CIM-cultured leaf explants is mediated by an auxin-inducible APETALA2 transcription factor, ENHANCER OF SHOOT REGENERATION 2 (ESR2), along with its interacting partner HISTONE DEACETYLASE 6 (HDA6). The ESR2-HDA6 complex binds directly to, and removes the H3ac mark from, the YUCCA1 (YUC1), YUC7, and YUC9 loci, consequently repressing auxin biosynthesis and inhibiting cell fate transition on 2,4-D-rich CIM. These findings indicate that negative feedback regulation of auxin biosynthesis by ESR2 and HDA6 interferes with proper cell fate transition and callus initiation.
(Copyright © 2024 The Author(s). Published by Elsevier Inc. All rights reserved.)
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فهرسة مساهمة: Keywords: ESR2; HDA6; YUCCA; auxin biosynthesis; chromatin modification; negative feedback loop
المشرفين على المادة: 2577AQ9262 (2,4-Dichlorophenoxyacetic Acid)
0 (Arabidopsis Proteins)
EC 3.5.1.98 (Histone Deacetylases)
0 (Indoleacetic Acids)
0 (Transcription Factors)
0 (ESR2 protein, Arabidopsis)
EC 3.5.1.- (HDA6 protein, Arabidopsis)
تواريخ الأحداث: Date Created: 20240403 Date Completed: 20240709 Latest Revision: 20240802
رمز التحديث: 20240802
مُعرف محوري في PubMed: PMC11287192
DOI: 10.1016/j.xplc.2024.100892
PMID: 38566417
قاعدة البيانات: MEDLINE
الوصف
تدمد:2590-3462
DOI:10.1016/j.xplc.2024.100892