期刊
FRONTIERS IN MICROBIOLOGY
卷 10, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fmicb.2019.01221
关键词
Arabidopsis thaliana; plant growth-promoting rhizobacteria; Sphingomonas sp. Cra20; drought stress; rhizosphere bacterial community; root architecture
类别
资金
- National Natural Science Foundation of China [31570488]
- Science and Technology Partnership Program, Ministry of Science and Technology of China [KY201501008]
- Major Special Science and Technology Project of Gansu Province [17ZD2WA017]
- Fundamental Research Funds for the Central Universities [lzujbky-2017-152]
The rhizosphere is colonized by a mass of microbes, including bacteria capable of promoting plant growth that carry out complex interactions. Here, by using a sterile experimental system, we demonstrate that Sphingomonas sp. Cra20 promotes the growth of Arabidopsis thaliana by driving developmental plasticity in the roots, thus stimulating the growth of lateral roots and root hairs. By investigating the growth dynamics of A. thaliana in soil with different water-content, we demonstrate that Cra20 increases the growth rate of plants, but does not change the time of reproductive transition under well-water condition. The results further show that the application of Cra20 changes the rhizosphere indigenous bacterial community, which may be due to the change in root structure. Our findings provide new insights into the complex mechanisms of plant and bacterial interactions. The ability to promote the growth of plants under water-deficit can contribute to the development of sustainable agriculture.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据