Shaomin Yang

Hainan Institute of Biotechnology, Haikou, 570206, Hainan, China
Author    Correspondence author
Genomics and Applied Biology, 2024, Vol. 15, No. 5   doi: 10.5376/gab.2024.15.0027
Received: 24 Aug., 2024    Accepted: 28 Sep., 2024    Published: 13 Oct., 2024

This is an open access article published under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Yang S.M., 2024, The role of microbial community structure in rice rhizosphere over the growing season, Genomics and Applied Biology, 15(5): 255-263 (doi: 10.5376/gab.2024.15.0027)

The microbial community structure in the rice rhizosphere plays a crucial role in plant health and soil nutrient cycling throughout the growing season. This study investigates how rice plants (Oryza sativa) influence the microbial community in rice field soil over different growth stages. Using quantitative PCR and 16S rRNA gene pyrotag analysis, we compared the microbial communities in the rhizosphere of rice plants to those in unplanted bulk soil. Our findings indicate that the rhizosphere harbors a significantly higher abundance of 16S rRNA genes, suggesting enhanced microbial growth. The rhizosphere effect was more pronounced than temporal changes, with notable shifts in the presence of specific microbial phyla such as Gemmatimonadetes, Proteobacteria, and Verrucomicrobia. Functional groups like potential iron reducers and fermenters were enriched in the rhizosphere. Additionally, a Herbaspirillum species was consistently more abundant in the rhizosphere, particularly during the early growth stages. These results underscore the dynamic interactions between rice plants and their associated microbial communities, highlighting the importance of the rhizosphere in shaping microbial diversity and function over the growing season.

Rice rhizosphere; Microbial community structure; 16S rRNA gene analysis; Plant-microbe interactions; Soil nutrient cycling