Publication: Bacillus velezensis S141 improves the root growth of soybean under drought conditions
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Issued Date
2025-02-01
Resource Type
ISSN
09168451
eISSN
13476947
Scopus ID
2-s2.0-85216463792
Pubmed ID
39544100
Journal Title
Bioscience, Biotechnology and Biochemistry
Volume
89
Issue
2
Start Page
304
End Page
312
Rights Holder(s)
SCOPUS
Bibliographic Citation
Bioscience, Biotechnology and Biochemistry Vol.89 No.2 (2025) , 304-312
Suggested Citation
Kondo T., Sibponkrung S., Tittabutr P., Boonkerd N., Ishikawa S., Teaumroong N., Yoshida K.I. Bacillus velezensis S141 improves the root growth of soybean under drought conditions. Bioscience, Biotechnology and Biochemistry Vol.89 No.2 (2025) , 304-312. 312. doi:10.1093/bbb/zbae168 Retrieved from: https://hdl.handle.net/20.500.14740/20813
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Abstract
Bacillus velezensis S141 helps soybean establish specific symbiosis with strains of Bradyrhizobium diazoefficiens to form larger nodules and improve nitrogen fixation efficiency. In this study, we found that the dry weight of soybean roots increased significantly in the presence of S141 alone under drought conditions. Hence, S141 improved the root growth of soybean under limited water supply conditions. S141 can produce some auxin, which might be involved in the improved nodulation. Inactivating IPyAD of S141, which is required for auxin biosynthesis, did not alter the beneficial effects of S141, suggesting that the root growth was independent of auxin produced by S141. Under drought conditions, soybean exhibited some responses to resist osmotic and oxidative stresses; however, S141 was relevant to none of these responses. Although the mechanism remains unclear, S141 might produce some substances that stimulate the root growth of soybean under drought conditions.