Transcriptomic and physiological analyses unravel the effect and mechanism of halosulfuron-methyl on the symbiosis between rhizobium and soybean

Halosulfuron-methyl (HSM) is a new and highly effective sulfonylurea herbicide widely used in weed control, but its residue in the environment poses a potential risk to soybean. Soybean–rhizobium symbiotic nitrogen fixation is crucial for sustainable agricultural development and ecological environme...

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Published in:Ecotoxicology and environmental safety 2022-12, Vol.247, p.114248, Article 114248
Main Authors: Li, Yuanfu, Yu, Huan, Liu, Li, Liu, Yanmei, Huang, Lulu, Tan, Huihua
Format: Article
Language:English
Subjects:
Fabaceae
Flavonoids
Glycine max - genetics
Halosulfuron-methyl
Nitrogen fixation
Nodulation
Plant Growth Regulators
Rhizobium
Soybean
Symbiosis
Transcriptome
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Summary:Halosulfuron-methyl (HSM) is a new and highly effective sulfonylurea herbicide widely used in weed control, but its residue in the environment poses a potential risk to soybean. Soybean–rhizobium symbiotic nitrogen fixation is crucial for sustainable agricultural development and ecological environment health. However, the impact of HSM on the symbiosis between soybean and rhizobium is unclear. In this study, the effects of HSM on the soybean–rhizobium symbiotic process and nitrogen fixation were investigated by means of transcriptomic and physiological analyses. Treatment with a concentration of HSM less than 0.5 mg L−1 had no effect on rhizobium growth, but significantly reduced nodules number, the biomass of soybean nodules, and nitrogenase activity in root nodules (P 
ISSN:0147-6513
1090-2414
DOI:10.1016/j.ecoenv.2022.114248