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International journal of molecular sciences
Apr 23, 2023;24 (9):

Saline-Alkali Soil Property Improved by the Synergistic Effects of JL-5, XW-4, and Soil Microbiota.

Yujue Wang, Yan Wang, Qian Zhang, Hangzhe Fan, Xinyu Wang, Jianan Wang, Ying Zhou, Zhanyu Chen, Fengjie Sun, Xiyan Cui
Author Information
  1. Yujue Wang: College of Life Sciences, Jilin Agricultural University, Changchun 130118, China.
  2. Yan Wang: College of Life Sciences, Jilin Agricultural University, Changchun 130118, China.
  3. Qian Zhang: College of Life Sciences, Jilin Agricultural University, Changchun 130118, China.
  4. Hangzhe Fan: College of Life Sciences, Jilin Agricultural University, Changchun 130118, China.
  5. Xinyu Wang: College of Life Sciences, Jilin Agricultural University, Changchun 130118, China.
  6. Jianan Wang: College of Life Sciences, Jilin Agricultural University, Changchun 130118, China.
  7. Ying Zhou: College of Life Sciences, Jilin Agricultural University, Changchun 130118, China.
  8. Zhanyu Chen: College of Agronomy, Jilin Agricultural University, Changchun 130118, China.
  9. Fengjie Sun: Department of Biological Sciences, School of Science and Technology, Georgia Gwinnett College, Lawrenceville, GA 30043, USA. ORCID
  10. Xiyan Cui: College of Life Sciences, Jilin Agricultural University, Changchun 130118, China. ORCID
PMID: 37175442 DOI: 10.3390/ijms24097737

Abstract

Two saline-alkali-tolerant bacterial strains, JL-5 and XW-4, were isolated, with high capabilities of hydrolyzing phosphate and producing cellulase, respectively. The molecular mechanisms regulating the saline-alkali tolerance in the strain JL-5 were further investigated using transcriptome analysis. The contents of lactic acid and proline and the enzymatic activity of glutamine synthetase in the strain JL-5 were significantly increased. The properties of saline-alkali soils were significantly improved by the enhanced growth of the indicator plant under the combined applications of the strains JL-5 and XW-4 mixed with corn straw. The contents of catalase, peroxidase, superoxide dismutase and proline of were significantly increased, and the content of malondialdehyde was significantly decreased in the combined treatment of both bacterial strains. The contents of available nitrogen, phosphorus and potassium and organic matters in the soil treated with both strains were significantly increased, as well as the diversity and abundance of the soil microbiota. Our study evidently demonstrated the synergistic effects of the strains JL-5 and XW-4, indicator plants and the local microbiota in terms of improving the saline-alkali soil properties, providing strong experimental evidence to support the commercial development of the combined application of both strains to improve the properties of saline-alkali soils.

Keywords

Leymus chinensis Priestia aryabhattai Staphylococcus pseudoxylosus saline-alkali resistance saline-alkali soil soil microbiota

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MeSH Term

Soil
Bacillus
Alkalies
Bacteria
Proline
Saline Solution
Poaceae
Zea mays
Plants

Chemicals

Soil
Alkalies
Saline Solution
Proline
Journal Article

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