Soybean microbiome composition and the impact of host plant resistance

Autor: Dung T. Tran, Melissa G. Mitchum, Shuzhen Zhang, Jason G. Wallace, Zenglu Li
Jazyk: angličtina
Rok vydání: 2024
Předmět:
Zdroj: Frontiers in Plant Science, Vol 14 (2024)
Druh dokumentu: article
ISSN: 1664-462X
DOI: 10.3389/fpls.2023.1326882
Popis: Microbial communities play an important role in the growth and development of plants, including plant immunity and the decomposition of complex substances into absorbable nutrients. Hence, utilizing beneficial microbes becomes a promising strategy for the optimization of plant growth. The objective of this research was to explore the root bacterial profile across different soybean genotypes and the change in the microbial community under soybean cyst nematode (SCN) infection in greenhouse conditions using 16S rRNA sequencing. Soybean genotypes with soybean cyst nematode (SCN) susceptible and resistant phenotypes were grown under field and greenhouse conditions. Bulked soil, rhizosphere, and root samples were collected from each replicate. Sequencing of the bacterial 16S gene indicated that the bacterial profile of soybean root and soil samples partially overlapped but also contained different communities. The bacterial phyla Proteobacteria, Actinobacteria, and Bacteroidetes dominate the soybean root-enriched microbiota. The structure of bacteria was significantly affected by sample year (field) or time point (greenhouse). In addition, the host genotype had a small but significant effect on the diversity of the root microbiome under SCN pressure in the greenhouse test. These differences may potentially represent beneficial bacteria or secondary effects related to SCN resistance.
Databáze: Directory of Open Access Journals