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231225s2022 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/erac068
|2 doi
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|a pubmed24n1123.xml
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|a (DE-627)NLM337142718
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|a (NLM)35182423
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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|a Liu, Zhenming
|e verfasserin
|4 aut
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|a Transcription factor OsSGL is a regulator of starch synthesis and grain quality in rice
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|c 2022
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 06.06.2022
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|a Date Revised 03.08.2022
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|a published: Print
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|a Citation Status MEDLINE
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|a © The Author(s) 2022. Published by Oxford University Press on behalf of the Society for Experimental Biology. All rights reserved. For permissions, please email: journals.permissionsoup.com.
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|a Starch biosynthesis during rice endosperm development is important for grain quality, as it influences grain size and physico-chemical properties, which together determine rice eating quality. Cereal starch biosynthetic pathways have been comprehensively investigated; however, their regulation, especially by transcriptional repressors remains largely unknown. Here, we identified a DUF1645 domain-containing protein, STRESS_tolerance and GRAIN_LENGTH (OsSGL), that participates in regulating rice starch biosynthesis. Overexpression of OsSGL reduced total starch and amylose content in the endosperm compared with the wild type. Chromatin immunoprecipitation sequencing and RNA-seq analyses indicated that OsSGL targets the transcriptional activity of several starch and sucrose metabolism genes. In addition, ChIP-qPCR, yeast one-hybrid, EMSA and dual-luciferase assays demonstrated that OsSGL directly inhibits the expression of SUCROSE SYNTHASE 1 (OsSUS1) in the endosperm. Furthermore, OsSUS1 interacts with OsSGL to release its transcriptional repression ability. Unexpectedly, our results also show that knock down and mutation of OsSGL disrupts the starch biosynthetic pathway, causing lower starch and amylose content. Therefore, our findings demonstrate that accurate control of OsSGL homeostasis is essential for starch synthesis and grain quality. In addition, we revealed the molecular mechanism of OsSGL in regulating starch biosynthesis-related genes, which are required for grain quality
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Grain quality
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|a OsSGL
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|a OsSUS1
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|a rice
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|a transcriptional activity
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|a Plant Proteins
|2 NLM
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|a Transcription Factors
|2 NLM
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|a Starch
|2 NLM
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|a 9005-25-8
|2 NLM
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|a Amylose
|2 NLM
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|a 9005-82-7
|2 NLM
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|a Jiang, Shun
|e verfasserin
|4 aut
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|a Jiang, Lingli
|e verfasserin
|4 aut
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|a Li, Wanjing
|e verfasserin
|4 aut
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|a Tang, Yuqin
|e verfasserin
|4 aut
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|a He, Wei
|e verfasserin
|4 aut
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|a Wang, Manling
|e verfasserin
|4 aut
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|a Xing, Junjie
|e verfasserin
|4 aut
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|a Cui, Yanchun
|e verfasserin
|4 aut
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|a Lin, Qinlu
|e verfasserin
|4 aut
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|a Yu, Feng
|e verfasserin
|4 aut
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|a Wang, Long
|e verfasserin
|4 aut
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773 |
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|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 73(2022), 11 vom: 02. Juni, Seite 3417-3430
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnns
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|g volume:73
|g year:2022
|g number:11
|g day:02
|g month:06
|g pages:3417-3430
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|u http://dx.doi.org/10.1093/jxb/erac068
|3 Volltext
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|d 73
|j 2022
|e 11
|b 02
|c 06
|h 3417-3430
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