دورية أكاديمية
أعرض في EDS

Modulation of starch synthesis in Arabidopsis via phytochrome B-mediated light signal transduction.

التفاصيل البيبلوغرافية
العنوان: Modulation of starch synthesis in Arabidopsis via phytochrome B-mediated light signal transduction.
المؤلفون: Shi Q; National Key Laboratory of Wheat Improvement, College of Life Sciences, Shandong Agricultural University, Tai'an, 271018, China.; National Key Laboratory of Wheat Improvement, College of Agronomy, Shandong Agricultural University, Tai'an, 271018, China., Xia Y; National Key Laboratory of Wheat Improvement, College of Life Sciences, Shandong Agricultural University, Tai'an, 271018, China., Xue N; National Key Laboratory of Wheat Improvement, College of Life Sciences, Shandong Agricultural University, Tai'an, 271018, China., Wang Q; National Key Laboratory of Wheat Improvement, College of Life Sciences, Shandong Agricultural University, Tai'an, 271018, China.; National Key Laboratory of Wheat Improvement, College of Agronomy, Shandong Agricultural University, Tai'an, 271018, China., Tao Q; National Key Laboratory of Wheat Improvement, College of Life Sciences, Shandong Agricultural University, Tai'an, 271018, China., Li M; National Key Laboratory of Wheat Improvement, College of Life Sciences, Shandong Agricultural University, Tai'an, 271018, China., Xu D; National Key Laboratory of Wheat Improvement, College of Life Sciences, Shandong Agricultural University, Tai'an, 271018, China.; National Key Laboratory of Wheat Improvement, College of Agronomy, Shandong Agricultural University, Tai'an, 271018, China., Wang X; National Key Laboratory of Wheat Improvement, College of Life Sciences, Shandong Agricultural University, Tai'an, 271018, China., Kong F; National Key Laboratory of Wheat Improvement, College of Life Sciences, Shandong Agricultural University, Tai'an, 271018, China., Zhang H; National Key Laboratory of Wheat Improvement, College of Life Sciences, Shandong Agricultural University, Tai'an, 271018, China., Li G; National Key Laboratory of Wheat Improvement, College of Life Sciences, Shandong Agricultural University, Tai'an, 271018, China.
المصدر: Journal of integrative plant biology [J Integr Plant Biol] 2024 May; Vol. 66 (5), pp. 973-985. Date of Electronic Publication: 2024 Feb 23.
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: Wiley-Blackwell Pub Country of Publication: China (Republic : 1949- ) NLM ID: 101250502 Publication Model: Print-Electronic Cited Medium: Internet ISSN: 1744-7909 (Electronic) Linking ISSN: 16729072 NLM ISO Abbreviation: J Integr Plant Biol Subsets: MEDLINE
أسماء مطبوعة: Publication: [China] : Wiley-Blackwell Pub
Original Publication: [Carlton South, Victoria] : Blackwell Pub., 2005-
مواضيع طبية MeSH: Arabidopsis*/metabolism , Arabidopsis*/genetics , Arabidopsis*/radiation effects , Arabidopsis Proteins*/metabolism , Arabidopsis Proteins*/genetics , Gene Expression Regulation, Plant*/radiation effects , Phytochrome B*/metabolism , Phytochrome B*/genetics , Starch*/metabolism , Starch*/biosynthesis, Basic Helix-Loop-Helix Leucine Zipper Transcription Factors/metabolism ; Basic Helix-Loop-Helix Leucine Zipper Transcription Factors/genetics ; Basic-Leucine Zipper Transcription Factors/metabolism ; Basic-Leucine Zipper Transcription Factors/genetics ; Light ; Light Signal Transduction ; Plant Leaves/metabolism ; Plant Leaves/genetics ; Plant Leaves/radiation effects
مستخلص: Starch is a major storage carbohydrate in plants and is critical in crop yield and quality. Starch synthesis is intricately regulated by internal metabolic processes and external environmental cues; however, the precise molecular mechanisms governing this process remain largely unknown. In this study, we revealed that high red to far-red (high R:FR) light significantly induces the synthesis of leaf starch and the expression of synthesis-related genes, whereas low R:FR light suppress these processes. Arabidopsis phytochrome B (phyB), the primary R and FR photoreceptor, was identified as a critical positive regulator in this process. Downstream of phyB, basic leucine zipper transcription factor ELONGATED HYPOCOTYL5 (HY5) was found to enhance starch synthesis, whereas the basic helix-loop-helix transcription factors PHYTOCHROME INTERACTING FACTORs (PIF3, PIF4, and PIF5) inhibit starch synthesis in Arabidopsis leaves. Notably, HY5 and PIFs directly compete for binding to a shared G-box cis-element in the promoter region of genes encoding starch synthases GBSS, SS3, and SS4, which leads to antagonistic regulation of their expression and, consequently, starch synthesis. Our findings highlight the vital role of phyB in enhancing starch synthesis by stabilizing HY5 and facilitating PIFs degradation under high R:FR light conditions. Conversely, under low R:FR light, PIFs predominantly inhibit starch synthesis. This study provides insight into the physiological and molecular functions of phyB and its downstream transcription factors HY5 and PIFs in starch synthesis regulation, shedding light on the regulatory mechanism by which plants synchronize dynamic light signals with metabolic cues to module starch synthesis.
(© 2024 Institute of Botany, Chinese Academy of Sciences.)
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معلومات مُعتمدة: 32270263 National Natural Science Foundation of China
فهرسة مساهمة: Keywords: Arabidopsis thaliana; HY5; PIFs; light signal; phyB; starch synthesis
المشرفين على المادة: 0 (Arabidopsis Proteins)
0 (Basic Helix-Loop-Helix Leucine Zipper Transcription Factors)
0 (Basic-Leucine Zipper Transcription Factors)
0 (HY5 protein, Arabidopsis)
136250-22-1 (Phytochrome B)
9005-25-8 (Starch)
0 (PHYB protein, Arabidopsis)
تواريخ الأحداث: Date Created: 20240223 Date Completed: 20240527 Latest Revision: 20240604
رمز التحديث: 20240604
DOI: 10.1111/jipb.13630
PMID: 38391049
قاعدة البيانات: MEDLINE
الوصف
تدمد:1744-7909
DOI:10.1111/jipb.13630