Frontiers in Microbiology, Год журнала: 2021, Номер 12

Опубликована: Окт. 21, 2021

Rhizosphere bacteria, the main functional microorganisms inhabiting roots of terrestrial plants, play important roles in regulating plant growth and environmental stress resistance. However, limited information is available regarding changes occurring within structure root microbial community response mechanisms host plants that improve adaptability to drought stress. In this study, we conducted an experiment on two sugarcane varieties with different tolerance levels under control treatments analyzed rhizosphere bacterial communities using 16S rRNA high-throughput sequencing. Correlation analysis results clarified influence various factors structure. Drought reduced diversity sugarcane. Interestingly, drought-sensitive cultivar GT39 changed more than drought-tolerant ZZ9. addition, ZZ9 had a high abundance drought-resistant bacteria optimal soil water conditions, whereas accumulated large number only mainly relied Actinobacteria its stress, phylum was positively correlated acid phosphatase protease levels. contrast, Bacilli class conclusion, can significantly reduce increase rhizosphere. The cultivars non-drought conditions factor contributing these cultivars. Moreover, core exudates jointly affect resistance drought.

Язык: Английский