IB-CAS  > 中科院植物分子生理学重点实验室
Defective mitochondrial function by mutation in THICK ALEURONE 1 encoding a mitochon-driontargeted single-stranded DNA-binding protein leads to increased aleurone cell layers and improved nutrition in rice
Li, Dong-Qi; Wu, Xiao-Ba; Wang, Hai-Feng; Feng, Xue; Yan, Shi-Juan; Wu, Sheng-Yang; Liu, Jin-Xin; Yao, Xue-Feng; Bai, Ai-Ning; Zhao, Heng; Song, Xiu-Fen; Guo, Lin; Zhang, Shi-Yong; Liu, Chun-Ming
2021
发表期刊MOLECULAR PLANT
ISSN1674-2052
卷号14期号:8页码:1343-1361
摘要Cereal endosperm comprises an outer aleurone and an inner starchy endosperm. Although these two tissues have the same developmental origin, they differ in morphology, cell fate, and storage product accumulation, with the mechanism largely unknown. Here, we report the identification and characterization of rice thick aleurone 1 (ta1) mutant that shows an increased number of aleurone cell layers and increased contents of nutritional factors including proteins, lipids, vitamins, dietary fibers, and micronutrients. We identified that the TA1 gene, which is expressed in embryo, aleurone, and subaleurone in caryopses, encodes a mitochondrion-targeted protein with single-stranded DNA-binding activity named OsmtSSB1. Cytological analyses revealed that the increased aleurone cell layers in ta1 originate from a developmental switch of subaleurone toward aleurone instead of starchy endosperm in the wild type. We found that TA1/OsmtSSB1 interacts with mitochondrial DNA recombinase RECA3 and DNA helicase TWINKLE, and down-regulation of RECA3 or TWINKLE also leads to ta1-like phenotypes. We further showed that mutation in TA1/OsmtSSB1 causes elevated illegitimate recombinations in the mitochondrial genome, altered mitochondrial morphology, and compromised energy supply, suggesting that the OsmtSSB1-mediated mitochondrial function plays a critical role in subaleurone cell-fate determination in rice.
关键词rice thick aleurone cell-fate determination nutritional improvement mitochondria
学科领域Biochemistry & Molecular Biology ; Plant Sciences
DOI10.1016/j.molp.2021.05.016
收录类别SCI
语种英语
WOS关键词ORYZA-SATIVA-L ; MAIZE ENDOSPERM ; TRANSCRIPTION FACTORS ; ALTERNATIVE OXIDASE ; EXPRESSION ANALYSIS ; MOLECULAR-CLONING ; GENE-EXPRESSION ; DYNAMIC CHANGES ; OPAQUE-2 MAIZE ; CARYOPSIS
WOS研究方向Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号WOS:000681059100019
出版者CELL PRESS
文献子类Article
出版地CAMBRIDGE
EISSN1752-9867
资助机构Chinese Academy of Sciences Innovation Project Molecular Modules for Breeding Design'' [XDA24010402] ; Beijing Municipal Science and Technology Commission Project [Z181100002418010] ; CAS-CSIRO Bilateral Collaboration Project [151111KYSB20180049]
作者邮箱cmliu@ibcas.ac.cn
作品OA属性Bronze
引用统计
被引频次:17[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.ibcas.ac.cn/handle/2S10CLM1/26335
专题中科院植物分子生理学重点实验室
作者单位1.[Li, Dong-Qi
2.Wu, Xiao-Ba
3.Feng, Xue
4.Wu, Sheng-Yang
5.Liu, Jin-Xin
6.Yao, Xue-Feng
7.Bai, Ai-Ning
8.Song, Xiu-Fen
9.Chinese Acad Sci, Inst Bot, Key Lab Plant Mol Physiol, Beijing 100093, Peoples R China
10.Univ Chinese Acad Sci, Beijing 100864, Peoples R China
11.[Wang, Hai-Feng
12.Shandong Acad Agr Sci, Rice Res Inst, Jinan 250100, Peoples R China
13.Guangdong Acad Agr Sci, Agrobiol Gene Res Ctr, Guangdong Key Lab Crop Germplasm Resources Preser, Guangzhou 510640, Peoples R China
14.[Zhao, Heng
15.Guo, Lin
16.Chinese Acad Agr Sci, Inst Crop Sci, Beijing 100081, Peoples R China
17.Peking Univ, Sch Adv Agr Sci, Beijing 100871, Peoples R China
18.Chinese Acad Sci, Innovat Acad Seed Design, Beijing 100101, Peoples R China
推荐引用方式
GB/T 7714
Li, Dong-Qi,Wu, Xiao-Ba,Wang, Hai-Feng,et al. Defective mitochondrial function by mutation in THICK ALEURONE 1 encoding a mitochon-driontargeted single-stranded DNA-binding protein leads to increased aleurone cell layers and improved nutrition in rice[J]. MOLECULAR PLANT,2021,14(8):1343-1361.
APA Li, Dong-Qi.,Wu, Xiao-Ba.,Wang, Hai-Feng.,Feng, Xue.,Yan, Shi-Juan.,...&Liu, Chun-Ming.(2021).Defective mitochondrial function by mutation in THICK ALEURONE 1 encoding a mitochon-driontargeted single-stranded DNA-binding protein leads to increased aleurone cell layers and improved nutrition in rice.MOLECULAR PLANT,14(8),1343-1361.
MLA Li, Dong-Qi,et al."Defective mitochondrial function by mutation in THICK ALEURONE 1 encoding a mitochon-driontargeted single-stranded DNA-binding protein leads to increased aleurone cell layers and improved nutrition in rice".MOLECULAR PLANT 14.8(2021):1343-1361.
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