文献类型： 外文期刊
作者： Chen, Jiameng 1 ; Jin, Zeyan 1 ; Xiang, Longyi 1 ; Chen, Yanyan 1 ; Zhang, Jie 1 ; Zhao, Jiayi 1 ; Huang, Fudeng 2 ; Shi, Yongfeng 3 ; Cheng, Fangmin 1 ; Pan, Gang 1 ;
作者机构： 1.Zhejiang Univ, Dept Agron, Zijingang Campus, Hangzhou 310058, Peoples R China
2.Zhejiang Acad Agr Sci, Inst Crop & Nucl Technol Utilizat, Hangzhou 310021, Peoples R China
3.China Natl Rice Res Inst, State Key Lab Rice Biol & Breeding, Hangzhou 310006, Peoples R China
关键词： Oryza sativa L.; Ethanol; Seed germination; SOD; GA/ABA balance
期刊名称：JOURNAL OF PLANT PHYSIOLOGY （ 影响因子：4.3； 五年影响因子：4.5 ）
ISSN： 0176-1617
年卷期： 2023 年 291 卷
页码：
收录情况： SCI
摘要： Ethanol is frequently used not only as priming but also as a solvent to dissolve hardly water-soluble phytohor-mones gibberellic acid (GA3) and abscisic acid (ABA) in seed germination. However, the molecular and physiological mechanisms of ethanol's impact on seed germination remain elusive. In this report, we investigated how ethanol affected reactive oxygen species (ROS) during rice seed germination. Ethanol at a concentration of 3.5% (v/v) inhibited 90% seed germination, which was almost reversed by H2O2. H2O2 contents in embryos were reduced by ethanol after 18 h imbibition. Antioxidant enzymes assays revealed that only superoxide dismutase (SOD) activities in seed embryos were lowered by ethanol, in line with the suppressed mRNA expression of SOD genes during imbibition. Additionally, compared to the mock condition, ethanol increased ABA contents but decreased GA (GA1 and GA3) in seed embryos, resulting in disharmonizing GA/ABA balance. Conceivably ethanol induced transcription of OsNCEDs, the key genes for ABA biosynthesis, and OsABA8ox3, a key gene for ABA catabolism. Furthermore, ethanol promoted ABA signaling by upregulating ABA receptor genes and ABA-responsive element (ABRE)-binding protein/ABRE-binding factors during imbibition. Overall, our results demonstrate that lowering of H2O2 levels due to suppressed SOD activities in rice germinating seed embryos is the decisive factor for ethanol-induced inhibition of seed germination, and GA/ABA balance and ABA signaling also play important roles in ethanol's inhibitory impact on seed germination.
- 相关文献
作者其他论文 更多>>
-
Unmanned aerial vehicle-based assessment of rice leaf chlorophyll content dynamics across genotypes
作者：Gu, Qing;Lou, Weidong;Zhu, Yihang;Hu, Hao;Zhao, Yiying;Zhou, Hongkui;Zhang, Xiaobin;Huang, Fudeng
关键词：Oryza sativa L.; Chlorophyll content; Phenotype; Unmanned aerial vehicle; Variety classification
-
Microwave-Enabled Fast Preparation of a Metal-Organic Framework Hybrid Membrane for Filtration-Enhanced Simultaneous Separation and Detection of Aflatoxin B1
作者：Ma, Tongtong;Zhang, Qi;Yuan, Lei;Li, Zhishang;Zhang, Lin;Zhang, Jie;Yan, Shugang;Ying, Yibin;Fu, Yingchun;Xu, Xiahong
关键词：metal-organic framework; hybrid membrane; fluorescence sensor; filtration; mycotoxins
-
Comprehensive Investigation of Fluoroquinolone Residues in Apis mellifera and Apis cerana Honey and Potential Risks to Consumers: A Five-Year Study (2014-2018) in Zhejiang Province, China
作者：He, Liang;Shen, Leiding;Zhang, Jie;Li, Rui
关键词：fluoroquinolones; residue; honey; risk assessment
-
Size Restriction Is Required for Proper Functioning of a Bipartite Begomovirus AC4 Protein
作者：Zhang, Wenwen;Liu, Shunmin;Xie, Guohui;Li, Xiuyu;Zhai, Yingying;Lin, Wenzhong;Wu, Zujian;Du, Zhenguo;Zhang, Jie;Zhang, Wenwen;Liu, Shunmin;Xie, Guohui;Li, Xiuyu;Zhai, Yingying;Lin, Wenzhong;Wu, Zujian;Du, Zhenguo;Zhang, Jie;Liu, Shunmin
关键词：AC4; begomovirus; geminivirus; tomato leaf curl Hsinchu virus
-
A Mutation of cyOsPPDKB Affects Starch Structure and Gel Consistency in Rice
作者：Gao, Zhennan;He, Yong;Dan, Yuqing;Tian, Zhihong;Li, Chunshou;Huang, Fudeng;Hao, Yuanyuan;Xu, Junfeng
关键词：cyOsPPDKB; starch structure; cooking and eating quality; gel consistency; rice
-
Starch Properties and Morphology of Eight Floury Endosperm Mutants in Rice
作者：Hao, Yuanyuan;Huang, Fudeng;Gao, Zhennan;Li, Chunshou;Xu, Junfeng;Zhu, Ying
关键词：floury endosperm mutants; starch properties; starch morphology; cooking and eating quality; rice
-
Integrated metabolic and transcriptional analysis reveals the role of carotenoid cleavage dioxygenase 4 (IbCCD4) in carotenoid accumulation in sweetpotato tuberous roots
作者：Zhang, Jie;He, Liheng;Dong, Jingjing;Zhao, Cailiang;Li, Runzhi;Dong, Jingjing;Wang, Yujie;Tang, Ruimin;Wang, Wenbin;Jia, Xiaoyun;Ji, Zhixian;Cao, Qinghe;Xie, Hong'e;Wu, Zongxin;Yuan, Ling
关键词：Ipomoea batatas; Gene expression; Carotenoids; Tuberous root development; Carotenoid cleavage dioxygenase 4(IbCCD4)
