Characterization of Root Hair Curling and Nodule Development in Soybean-Rhizobia Symbiosis.

ABSTRACT: Soybean plants form symbiotic nitrogen-fixing nodules with specific rhizobia bacteria. The root hair is the initial infection site for the symbiotic process before the nodules. Since roots and nodules grow in soil and are hard to perceive, little knowledge is available on the process of soybean root hair deformation and nodule development over time. In this study, adaptive microrhizotrons were used to observe root hairs and to investigate detailed root hair deformation and nodule formation subjected to different rhizobia densities. The result showed that the root hair curling angle increased with the increase of rhizobia density. The largest curling angle reached 268° on the 8th day after inoculation. Root hairs were not always straight, even in the uninfected group with a relatively small

SUBMITTER: Lu W 

PROVIDER: S-EPMC11398186 | biostudies-literature | 2024 Sep

REPOSITORIES: biostudies-literature