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231225s2021 xx |||||o 00| ||eng c |
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|a 10.1093/jxb/erab027
|2 doi
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|a pubmed25n1067.xml
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|a (DE-627)NLM320386600
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|a (NLM)33476364
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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 Ren, Ye
|e verfasserin
|4 aut
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|a A heat stress responsive NAC transcription factor heterodimer plays key roles in rice grain filling
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|c 2021
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 21.05.2021
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|a Date Revised 31.05.2022
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|a published: Print
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|a Citation Status MEDLINE
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|a © The Author(s) 2021. 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 High temperature often leads to failure of grain filling in rice (Oryza sativa) causing yield loss, but the underlying mechanisms are still not elucidated. Here, we report that two genes encoding seed-specific NAM/ATAF/CUC (NAC) domain transcription factors, ONAC127 and ONAC129, are responsive to heat stress and involved in the grain filling process of rice. ONAC127 and ONAC129 are dominantly expressed in the pericarp and can form a heterodimer during rice grain filling. CRISPR/Cas9 induced mutants and overexpression lines were then generated to investigate the function of these two transcription factors. Interestingly, both knock-out and overexpression plants showed incomplete grain filling and shrunken grains, which became more severe under heat stress. Transcriptome analysis revealed that ONAC127 and ONAC129 mainly regulate stimulus response and nutrient transport. ChIP-seq analysis identified that the direct target genes of ONAC127 and ONAC129 in developing rice seeds include monosaccharide transporter gene OsMST6, sugar transporter gene OsSWEET4, calmodulin-like protein gene OsMSR2 and AP2/ERF factor gene OsEATB. These results suggest that ONAC127 and ONAC129 regulate grain filling by affecting sugar transportation and abiotic stress responses. Overall, this study demonstrates a transcriptional regulatory network with ONAC127 and ONAC129 coordinating multiple pathways to modulate seed development and heat stress responses at rice reproductive stages
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Oryza sativa ssp
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| 650 |
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|a japonica
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|a Apoplastic pathway
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|a NAC transcription factor
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|a heat stress response
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|a heterodimer
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|a rice grain filling
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|a seed-specific expression
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|a sugar transportation
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| 650 |
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4 |
|a transcriptional regulation
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| 650 |
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|a Heat Shock Transcription Factors
|2 NLM
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| 650 |
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|a Plant Proteins
|2 NLM
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| 700 |
1 |
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|a Huang, Zhouquan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Jiang, Hao
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wang, Zhuo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Wu, Fengsheng
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Xiong, Yufei
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Yao, Jialing
|e verfasserin
|4 aut
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| 773 |
0 |
8 |
|i Enthalten in
|t Journal of experimental botany
|d 1985
|g 72(2021), 8 vom: 02. Apr., Seite 2947-2964
|w (DE-627)NLM098182706
|x 1460-2431
|7 nnas
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| 773 |
1 |
8 |
|g volume:72
|g year:2021
|g number:8
|g day:02
|g month:04
|g pages:2947-2964
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| 856 |
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|u http://dx.doi.org/10.1093/jxb/erab027
|3 Volltext
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