Delayed germination of Brassica parachinensis seeds by coumarin involves decreased GA(4) production and a consequent reduction of ROS accumulation
文献类型： 外文期刊
作者： Chen, Bing-Xian 1 ; Peng, Yuan-Xuan 1 ; Yang, Xue-Qin 3 ; Liu, Jun 1 ;
作者机构： 1.Guangdong Acad Agr Sci, Agrobiol Gene Res Ctr, Guangdong Prov Key Lab Crop Germplasm Resources P, Guangzhou, Peoples R China
2.Zhongkai Univ Agr & Engn, Coll Agr & Biol, Guangzhou, Peoples R China
3.South China Agr Univ, Coll Life Sci, Guangzhou, Peoples R China
关键词： coumarin; GAs; ROS; seed germination
期刊名称：SEED SCIENCE RESEARCH （ 影响因子：2.25； 五年影响因子：2.5 ）
ISSN： 0960-2585
年卷期： 2021 年 31 卷 3 期
页码：
收录情况： SCI
摘要： The plant allelochemical coumarin effectively inhibits the germination of Brassica parachinensis (B. parachinensis) seeds. Quantification of endogenous phytohormones showed that contents of abscisic acid (ABA), ABA glucose ester, gibberellin A20 (GA(20)), GA(3), GA(15), GA(24), GA(9) and GA(4) were higher in germinating seeds than in seedlings. Moreover, the presence of coumarin significantly reduced the content of bioactive GA(4) which is thought to positively regulate seed germination. Histochemical staining and spectrophotometry of reactive oxygen species (ROS) revealed that exogenous GA(3) and GA(4+7) could effectively promote the production of endogenous ROS during germination and that the GA synthesis inhibitor paclobutrazol could effectively inhibit production of ROS. Coumarin significantly inhibited the accumulation of ROS, especially superoxide anion radical O-2(-). This inhibitory effect could be restored by the addition of exogenous GA(3) and GA(4+7). Coumarin also inhibited the activity of the ROS-degrading enzymes such as superoxide dismutase, catalase and peroxidase as well as beta-amylase in seeds and seedlings. Taken together, we propose a model for the regulation of seed germination in B. parachinensis by coumarin, Gas and ROS, in which coumarin may delay seed germination by reducing endogenous GA(4), thus decreasing the accumulation of ROS.
- 相关文献
作者其他论文 更多>>
-
The Characterization of the Purine Nucleoside Phosphorylase from Agaricus bisporus and Its Potential Application in Reducing Purine Content in Beer
作者：Liu, Jun;Lu, Jian;Liu, Jun;Lu, Jian;Liu, Jun;Lu, Jian;Liu, Jun;Liu, Jun
关键词：beer; gout; purines; Agaricus bisporus; purine nucleoside phosphorylase
-
Pretreatment with nano-silver extends the post-harvest longevity of gladiolus cut flowers by reducing free water mobility
作者：Li, Xiumei;Liu, Qinjian;Chen, Yuanyuan;Chen, Zhongjian;Liu, Jun;Yan, Shijuan;Li, Hongbo;He, Shenggen
关键词：Water state; Nanoparticles; Vase life; Nuclear magnetic resonance; Cut flowers
-
pH/Enzyme-responsive nanocarrier pesticide delivery system: Realizing targeted release in pest gut for enhanced Apis cerana safety
作者：Du, Pengrui;Wu, Hao;Hou, Ruiquan;Liu, Jun;Chang, Jinzhe;Miao, Xiaoran;Wang, Xin;Liu, Pengpeng;Zhu, Shiqi;Zhang, Zhixiang;Zhang, Peiwen;Shao, Xuehua;Kaziem, Amir E.;Zhang, Peiwen
关键词：Zein; O-carboxymethyl chitosan; Environmentally responsive; Controlled-release pesticide; Biological safety
-
Strategies for Reducing Purine Accumulation in Beer: From Metabolic Mechanisms to Brewing Technology Innovations
作者：Liu, Jun;Lu, Jian;Liu, Jun;Lu, Jian;Liu, Jun;Lu, Jian;Liu, Jun;Liu, Jun
关键词：low-purine beer; hyperuricemia; purine metabolism; brewing biotechnology; yeast engineering
-
OsPIP2-1 positively regulates rice seed germination by modulating OsAmy3C and α-amylase expression
作者：Chen, Bingxian;Peng, Yuanxuan;Zhang, Qi;Chen, Zhongjian;Liu, Jun;Peng, Yuanxuan;Li, Hongmei
关键词：rice; seed germination; nanosilver;
OsPIP2-1 ; alpha-amylase -
Seed multispectral imaging combined with machine learning algorithms for distinguishing different varieties of lettuce (Lactuca sativa L.)
作者：Wei, Jinpeng;Yang, Le;Zhou, Yuliang;Wei, Jinpeng;Dai, Zhangyan;Zhang, Qi;Yang, Le;Zeng, Zhaoqi;Liu, Jun;Chen, Bingxian;Zeng, Zhaoqi
关键词：Lettuce; Variety identification; Seed multispectral imaging; Machine learning algorithms
-
Mechanism of Fermented-Litchi Polysaccharide Promoting Exopolysaccharide Production by Weissella confusa
作者：Hu, Teng-Gen;Tan, Feng-Xiang;Zou, Bo;Cheng, Li-Na;Wu, Ji-Jun;Liu, Jun;Xu, Yu-Juan;Yu, Yuan-Shan;Zou, Bo;Liu, Jun;Xiao, Geng-Sheng
关键词：fermented-litchi polysaccharide; exopolysaccharides; ABC transporter pathway; sucrase-dependent pathway
