دورية أكاديمية

Long-distance transport of sucrose in source leaves promotes sink root growth by the EIN3-SUC2 module.

التفاصيل البيبلوغرافية
العنوان: Long-distance transport of sucrose in source leaves promotes sink root growth by the EIN3-SUC2 module.
المؤلفون: Tong C; School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, People's Republic of China., Li C; Public Technical Service Center, Kunming Institute of Zoology, Chinese Academy of Sciences, Kunming, Yunnan, People's Republic of China., Cao XY; School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, People's Republic of China., Sun XD; Kunming Institute of Botany, Chinese Academy of Sciences, Kunming, Yunnan, People's Republic of China., Bao QX; School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, People's Republic of China., Mu XR; School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, People's Republic of China., Liu CY; School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, People's Republic of China., Loake GJ; Jiangsu Normal University - Edinburgh University, Centre for Transformative Biotechnology of Medicinal and Food Plants, Jiangsu Normal University, Xuzhou, People's Republic of China, China.; Institute of Molecular Plant Sciences, School of Biological Sciences, Edinburgh University, King's Buildings, Edinburgh, United Kingdom., Chen HH; School of Life Science, Nanjing Agricultural University, Nanjing, Jiangsu, People's Republic of China., Meng LS; School of Life Science, Jiangsu Normal University, Xuzhou, Jiangsu, People's Republic of China.
المصدر: PLoS genetics [PLoS Genet] 2022 Sep 21; Vol. 18 (9), pp. e1010424. Date of Electronic Publication: 2022 Sep 21 (Print Publication: 2022).
نوع المنشور: Journal Article; Research Support, Non-U.S. Gov't
اللغة: English
بيانات الدورية: Publisher: Public Library of Science Country of Publication: United States NLM ID: 101239074 Publication Model: eCollection Cited Medium: Internet ISSN: 1553-7404 (Electronic) Linking ISSN: 15537390 NLM ISO Abbreviation: PLoS Genet Subsets: MEDLINE
أسماء مطبوعة: Original Publication: San Francisco, CA : Public Library of Science, c2005-
مواضيع طبية MeSH: Arabidopsis* , Arabidopsis Proteins*/metabolism, DNA-Binding Proteins/metabolism ; Ethylenes/metabolism ; Gene Expression Regulation, Plant ; Glucose/metabolism ; Hexokinase/genetics ; Hexokinase/metabolism ; Membrane Transport Proteins/genetics ; Membrane Transport Proteins/metabolism ; Plant Leaves ; Plants/metabolism ; Sucrose/metabolism ; Transcription Factors/genetics
مستخلص: In most plants, sucrose, a major storage sugar, is transported into sink organs to support their growth. This key physiological process is dependent on the function of sucrose transporters. Sucrose export from source tissues is predominantly controlled through the activity of SUCROSE TRANSPORTER 2 (SUC2), required for the loading of sucrose into the phloem of Arabidopsis plants. However, how SUC2 activity is controlled to support root growth remains unclear. Glucose is perceived via the function of HEXOKINASE 1 (HXK1), the only known nuclear glucose sensor. HXK1 negatively regulates the stability of ETHYLENE-INSENSITIVE3 (EIN3), a key ethylene/glucose interaction component. Here we show that HXK1 functions upstream of EIN3 in the regulation of root sink growth mediated by glucose signaling. Furthermore, the transcription factor EIN3 directly inhibits SUC2 activity by binding to the SUC2 promoter, regulating glucose signaling linked to root sink growth. We demonstrate that these molecular components form a HXK1-EIN3-SUC2 module integral to the control of root sink growth. Also, we demonstrate that with increasing age, the HXK1-EIN3-SUC2 module promotes sucrose phloem loading in source tissues thereby elevating sucrose levels in sink roots. As a result, glucose signaling mediated-sink root growth is facilitated. Our findings thus establish a direct molecular link between the HXK1-EIN3-SUC2 module, the source-to sink transport of sucrose and root growth.
Competing Interests: The authors have declared that no competing interests exist.
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المشرفين على المادة: 0 (Arabidopsis Proteins)
0 (DNA-Binding Proteins)
0 (EIN3 protein, Arabidopsis)
0 (Ethylenes)
0 (Membrane Transport Proteins)
0 (Transcription Factors)
57-50-1 (Sucrose)
91GW059KN7 (ethylene)
EC 2.7.1.1 (Hexokinase)
IY9XDZ35W2 (Glucose)
تواريخ الأحداث: Date Created: 20220921 Date Completed: 20221005 Latest Revision: 20221007
رمز التحديث: 20240628
مُعرف محوري في PubMed: PMC9529141
DOI: 10.1371/journal.pgen.1010424
PMID: 36129930
قاعدة البيانات: MEDLINE
الوصف
تدمد:1553-7404
DOI:10.1371/journal.pgen.1010424