Extensin-Like Protein OsPEX1 Affects Seed Germination by Modulating Water Permeability of Seed Coat in Rice
文献类型： 外文期刊
作者： Li, Jieni 1 ; Zhang, Yuexiong 1 ; Li, Ao 2 ; Wei, Minyi 1 ; Wang, Yue 3 ; Zhou, Xiaolong 1 ; Liu, Chi 1 ; Ma, Zengfeng 1 ; Qin, Gang 1 ; Luan, Xin 4 ; Peng, Haifeng 3 ; Zhang, Xiang-Qian 2 ; Huang, Dahui 1 ;
作者机构： 1.Guangxi Acad Agr Sci, Rice Res Inst, Guangxi Key Lab Rice Genet & Breeding, Nanning, Peoples R China
2.Foshan Univ, Sch Agr & Biol Engn, Dept Hort, Foshan, Peoples R China
3.South China Agr Univ, Coll Life Sci, Guangzhou, Peoples R China
4.Guangdong Acad Agr Sci, Rice Res Inst, Guangzhou, Peoples R China
关键词： lipid deposition; OsPEX1; rice; seed germination; water uptake
期刊名称：PHYSIOLOGIA PLANTARUM （ 影响因子：3.6； 五年影响因子：5.4 ）
ISSN： 0031-9317
年卷期： 2025 年 177 卷 4 期
页码：
收录情况： SCI
摘要： Cutin and suberin in the rice seed coat serve as a lipid barrier that controls water entry into the seed. However, the molecular mechanisms underlying the permeability properties of seed coats remain largely unknown. In this study, we revealed that the rice EXTENSIN-like protein OsPEX1 influences seed germination by modulating water permeability in the seed coat. The germination rate of the gain-of-function pex1/pex1 mutant was lower than that of the wild-type seeds, although their seed vitality was comparable to that of the wild type. Morphological observations revealed that embryo growth in the pex1/pex1 mutant was inhibited. Further investigation indicated that water absorption in the seed coat around the micropyle was impaired during the early stage of germination. Integrated transcriptional and metabolic analyses suggested that the increased deposition of cutin and suberin may be associated with the overexpression of OsClo5, a transcriptional repressor, in the mutant. It is proposed that abnormal deposition of cutin and suberin in the seed coat may be the major influencing factors contributing to the reduced impermeability of pex1/pex1 seeds. These results indicate that OsPEX1 plays a critical role in modulating water absorption in the seed coat during seed germination.
- 相关文献
作者其他论文 更多>>
-
Hydrothermal reduction and phase transformation of Fe(III) minerals induced by rice straw to improve the heterogeneous Fenton degradation of metolachlor
作者：Liu, Jingyi;Zhao, Yu;Cheng, Liulong;Lu, Zhuoye;Liang, Haojie;Wang, Yue;Ni, Zhuobiao;Yu, Guangwei;Zhu, Yanping;Qiu, Rongliang;Zhu, Runliang;Deng, Fangxin;Li, Yaying;Qiu, Rongliang;Zhang, Jing
关键词：Heterogeneous Fenton oxidation; Hydrothermal reduction; Phase transformation; Soil remediation; Fe(III)/Fe(II) redox cycle
-
OsCHR728 encodes a chromatin remodeling factor involved in seed size and grain chalkiness in rice
作者：Song, Yuxin;Li, Jieni;Li, Ao;Liu, Na;Gao, Wanzhen;Zhang, Xiang-Qian;Li, Jieni;Zheng, Xia;Luan, Xin;Wu, Zhi-Hao;Yang, Weifeng
关键词：Rice; OsCHR728; Grain size; Chalkiness; Rice quality
-
Integration of molecular breeding and multi-resistance screening for developing a promising restorer line Guihui5501 with heavy grain, good grain quality, and endurance to biotic and abiotic stresses
作者：Wei, Minyi;Huang, Dahui;Ma, Zengfeng;Liu, Chi;Zhou, Xiaolong;Wu, Zishuai;Qin, Gang;Zhang, Yuexiong;Yan, Qun;Chen, Shen;Yin, Xiaoting;Qin, Yuanyuan;Lu, Yingping;Yan, Liuhui
关键词：rice; restorer line; marker-assisted selection (MAS); blast; brown planthopper (BPH); cold tolerance; heavy-grain; quality
-
Streamlined whole-genome genotyping through NGS-enhanced thermal asymmetric interlaced (TAIL)-PCR
作者：Zhao, Sheng;Wang, Yue;Zhu, Zhenghang;Chen, Peng;Lu, Hong;Xiang, Yong;Liu, Yuwen;Qian, Qian;Chang, Yuxiao;Liu, Wuge;Wang, Chongrong
关键词：whole-genome genotyping; primer-template mismatched annealing; specific primer; arbitrary degen- erate primer; molecular breeding
-
Endoplasmic reticulum adenylate transporter activity affects amino acid metabolism under photorespiratory conditions
作者：Li, Jieni;Song, Yuxin;Xie, Tao;Hong, Yu;Liu, Na;Su, Yao;Fu, Xueli;Zhang, Xiang-Qian;Li, Jieni;Zhang, Yuexiong;Qin, Gang;Luan, Xin;Gou, Yajun;Zhong, Tianxiu;Chen, Shu
关键词：Endoplasmic reticulum; Photorespiration; Amino acid; Glutamate/alanine aminotransferase; ER-ANT1
-
Historical Trends Analysis of Main Agronomic Traits in South China Inbred Indica Rice Varieties since Dwarf Breeding
作者：Feng, Xiaomin;Zhang, Qiang;Liu, Zhixia;Jiang, Yijun;Yu, Ning;Luan, Xin;Li, Wenlong;Shan, Miaomiao;Zhao, Ying;Nie, Wenlong;Chen, Kai;Xu, Jianlong;Li, Wenlong;Shan, Miaomiao;Lin, Qingshan
关键词：South China; inbred indica rice; heading date; yield; plant type; trait evolution
-
OsPEX1, an extensin-like protein, negatively regulates root growth in a gibberellin-mediated manner in rice
作者：Li, Jieni;Li, Zhenyong;Dai, Hang;Zhong, Tianxiu;Chen, Shu;Xie, Xin-Ming;Zhang, Xiang-Qian;Li, Jieni;Zhang, Xiang-Qian;Zhang, Yuexiong;Qin, Gang;Luan, Xin;Peng, Haifeng
关键词：Rice; Leucine-rich repeat extensin-like protein; Gibberellin; Lignin; Root growth
