| Autor: |
Han, Lizhen, Zhang, Hong, Xu, Yu, Li, Ying, Zhou, Jing |
| Předmět: |
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| Zdroj: |
Archives of Microbiology; Jul2021, Vol. 203 Issue 5, p2279-2290, 12p |
| Abstrakt: |
Plant growth-promoting rhizobacteria that produce 1-aminocyclopropane-1-carboxylic acid (ACC) deaminase can promote plant growth and enhance abiotic stress tolerance. In this study, Burkholderia pyrrocinia strain P10, with an ACC deaminase activity of 33.01-µmol/h/mg protein, was isolated from the tea rhizosphere and identified based on morphological, biochemical, and molecular characteristics. In addition to its ACC deaminase activity at pH 5.0–9.0 and in response to 5% NaCl and 20% polyethylene glycol, strain P10 can also solubilize phosphorus compounds, produce indole-3-acetic acid, and secrete siderophores. Pot experiments revealed that strain P10 can significantly enhance peanut seedling growth under saline conditions (100- and 170-mmol/L NaCl). Specifically, it increased the fresh weight and root length of plants by 90.12% and 79.22%, respectively, compared with high-salt stress. These results provide new insights into the biological characteristics of Burkholderia pyrrocinia, which may be useful as a bio-fertilizer. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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