High incidence of plant growth-stimulating bacteria associated with the rhizosphere of wheat grown on salinated soil in Uzbekistan

Environmental Microbiology
Dilfuza EgamberdievaBen Lugtenberg

Abstract

Soil salinization is increasing steadily in many parts of the world and causes major problems for plant productivity. Under these stress conditions, root-associated beneficial bacteria can help improve plant growth and nutrition. In this study, salt-tolerant bacteria from the rhizosphere of Uzbek wheat with potentially beneficial traits were isolated and characterized. Eight strains which initially positively affect the growth of wheat plants in vitro were investigated in detail. All eight strains are salt tolerant and have some of the following plant growth-beneficial properties: production of auxin, HCN, lipase or protease and wheat growth promotion. Using sequencing of part of the 16S rDNA, the eight new isolates were identified as Acinetobacter (two strains), Pseudomonas aeruginosa, Staphylococcus saprophyticus, Bacillus cereus, Enterobacter hormaechei, Pantoae agglomerans and Alcaligenes faecalis. All these strains are potential human pathogens. Possible reasons for why these bacteria present in the rhizosphere and establish there are discussed.

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Citations

Jun 16, 2009·Applied and Environmental Microbiology·Laura SteindlerVittorio Venturi
May 22, 2013·PloS One·Teresa WeiseBirgit Piechulla
Jun 14, 2008·FEMS Microbiology Reviews·Ilana Zilber-Rosenberg, Eugene Rosenberg
Nov 23, 2017·Frontiers in Microbiology·Miao WangJoana F Salles
Jan 11, 2020·Frontiers in Microbiology·Dilfuza EgamberdievaNaveen K Arora
Nov 23, 2017·Frontiers in Microbiology·Dilfuza EgamberdievaAbeer Hashem
Jan 20, 2021·International Journal of Systematic and Evolutionary Microbiology·Han Sol KimJung-Sook Lee
Feb 2, 2021·Frontiers in Microbiology·Maria Leticia BonatelliMaria Carolina Quecine
Jul 3, 2021·International Journal of Molecular Sciences·Haichao FengRuifu Zhang
Jul 22, 2021·Journal of Integrative Plant Biology·Tie-Yuan LiuMo-Xian Chen
Aug 19, 2021·Applied and Environmental Microbiology·Xiang LiQiaoyun Huang

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