JOURNAL ARTICLE

The beneficial rhizobacterium Bacillus velezensis SQR9 regulates plant nitrogen uptake via an endogenous signaling pathway.

  • Published In: Journal of Experimental Botany, 2024, v. 75, n. 11. P. 3388 1 of 3

  • Database: Academic Search Ultimate 2 of 3

  • Authored By: Chen, Yu; Li, Yucong; Fu, Yansong; Jia, Letian; Li, Lun; Xu, Zhihui; Zhang, Nan; Liu, Yunpeng; Fan, Xiaorong; Xuan, Wei; Xu, Guohua; Zhang, Ruifu 3 of 3

Abstract

This article investigates how volatile compounds (VCs) emitted by the plant growth-promoting rhizobacteria (PGPR) strain *Bacillus velezensis* SQR9 influence nitrogen (N) uptake in plants. The study demonstrates that SQR9 VCs enhance nitrogen accumulation and uptake of nitrate (NO3–) and ammonium (NH4+) in both *Arabidopsis thaliana* and rice (*Oryza sativa*), primarily by upregulating key nitrogen transporter genes such as AtNRT2.1 in Arabidopsis and OsNAR2.1, OsNRT2.3a, and OsAMT1 family members in rice. Calcium signaling and the transcription factor NINLIKEPROTEIN7 (NLP7) are shown to be critical for the nitrate uptake response in Arabidopsis, while distinct transporter genes mediate the response in rice. These findings suggest that PGPRs can promote plant nitrogen uptake by modulating endogenous signaling pathways and nitrogen transport mechanisms.

Additional Information

  • Source:Journal of Experimental Botany. 2024/06, Vol. 75, Issue 11, p3388
  • Document Type:Article
  • Subject Area:Agriculture and Agribusiness
  • Publication Date:2024
  • ISSN:0022-0957
  • DOI:10.1093/jxb/erae125
  • Accession Number:177745705
  • Copyright Statement:Copyright of Journal of Experimental Botany is the property of Oxford University Press / USA and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)

Looking to go deeper into this topic? Look for more articles on EBSCOhost.