中国科学院机构知识库网格
Chinese Academy of Sciences Institutional Repositories Grid
Involvement of reactive oxygen species and auxin in serotonin-induced inhibition of primary root elongation

文献类型:期刊论文

作者Wan, Jinpeng; Zhang, Ping; Sun, Liangliang; Li, Shuang; Wang, Ruling; Zhou, Huakun; Wang, Wenying; Xu, Jin
刊名JOURNAL OF PLANT PHYSIOLOGY
出版日期2018
卷号229
关键词Serotonin auxin reactive oxygen species primary root growth Arabidopsis thaliana
英文摘要The well-known neurotransmitter 5-hydroxytryptamine (serotonin) not only regulates sleep and mood in humans and animals but may also play important roles in modulating growth, development, and defense responses, such as seed germination, flowering, and abiotic stress tolerance, in plants. Serotonin inhibits primary root (PR) growth; however, the physiological and molecular mechanisms underlying serotonin-mediated PR growth inhibition remain largely unclear. Here, we investigate the effects of serotonin on root growth and development in Arabidopsis. Serotonin inhibits PR elongation by affecting both the meristem and elongation zones. In the meristem zone, serotonin represses both meristem cell division potential and stem cell niche activity. Serotonin induces H2O2 overaccumulation in the elongation zone and reduces O-2- accumulation in the meristem zone by a UPB1 pathway, thereby disrupting reactive oxygen species (ROS) equilibrium in root tips, thus resulting in PR growth inhibition. Serotonin also regulates auxin distribution in root tips by decreasing auxin-related gene expression and repressing auxin transport through modulation of AUX1 and PIN2 abundances in root tips. Taken together, our data indicate that high concentrations of serotonin result in stress responses in plants by inhibiting PR elongation through the regulation of H2O2 and O-2- distribution in PR tips and through an auxin pathway via the repression of auxin biosynthesis and transport.
源URL[http://210.75.249.4/handle/363003/59961]  
专题西北高原生物研究所_中国科学院西北高原生物研究所
推荐引用方式
GB/T 7714
Wan, Jinpeng,Zhang, Ping,Sun, Liangliang,et al. Involvement of reactive oxygen species and auxin in serotonin-induced inhibition of primary root elongation[J]. JOURNAL OF PLANT PHYSIOLOGY,2018,229.
APA Wan, Jinpeng.,Zhang, Ping.,Sun, Liangliang.,Li, Shuang.,Wang, Ruling.,...&Xu, Jin.(2018).Involvement of reactive oxygen species and auxin in serotonin-induced inhibition of primary root elongation.JOURNAL OF PLANT PHYSIOLOGY,229.
MLA Wan, Jinpeng,et al."Involvement of reactive oxygen species and auxin in serotonin-induced inhibition of primary root elongation".JOURNAL OF PLANT PHYSIOLOGY 229(2018).

入库方式: OAI收割

来源:西北高原生物研究所

浏览0
下载0
收藏0
其他版本

除非特别说明,本系统中所有内容都受版权保护,并保留所有权利。