Coordination between Bradyrhizobium and Pseudomonas alleviates salt stress in soybean through altering root system architecture

By D. Egamberdieva, S. Wirth, D. Jabborova, L. Räsänen, H. Liao. 2017

175 citations recorded by the source corpus.

ABSTRACT It is a well accepted strategy to improve plant salt tolerance through inoculation with beneficial microorganisms. However, its underlying mechanisms still remain unclear. In the present study, hydroponic experiments were conducted to evaluate the effects of Bradyrhizobium japonicum USDA 110 with salt-tolerant Pseudomonas putida TSAU1 on growth, protein content, nitrogen, and phosphorus uptake as well as root system architecture of soybean (Glycine max L.) under salt stress. The results indicated that the combined inoculation with USDA 110 and TSAU1 significantly improved plant growth, nitrogen and phosphorus contents, and contents of soluble leaf proteins under salt stress compared to the inoculation with the symbiont alone or compared to un-inoculated ones. The root architectural traits, like root length, surface area, project area, and root volume; as well as nodulation traits were also significantly increased by co-inoculation with USDA 110 and TSAU1. The plant-growth promoting rhizobacteria (PGPR) P. putida strain TSAU1 could improve the symbiotic interaction between the salt-stressed soybean and B. japonicum USDA 110. In conclusion, inoculation with B. japonicum and salt-tolerant P. putida synergistically improved soybean salt tolerance through altering root system architecture facilitating nitrogen and phosphorus acquisition, and nodule formation.

Subfields: Plant Science

View Paper: https://www.semanticscholar.org/paper/8ec95d827b6e761f1459e2754bf52db64e98dcbb

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In Plant Science

1. S. Wirth
2. A. Hashem
3. E. F. Abd_Allah
4. Abdulaziz A. Alqarawi
5. D. Egamberdieva
6. B. R. Glick

Citations in the corpus

• The Growth Promotion of Two Salt-Tolerant Plant Groups with PGPR Inoculation: A Meta-Analysis (2019, background): “Salt stress can destroy the dynamic equilibrium of ROS and cause oxidative damage in plants [11].”
• Phytohormones and Beneficial Microbes: Essential Components for Plants to Balance Stress and Fitness (2017, background): “…in combination with Mesorhizobium ciceri IC53 stimulated root and shoot biomass and improved nodule formation in chickpea (Cicer arietinum L.) under salt stress, as compared to uninoculated plants and plants inoculated with Mesorhizobium ciceri IC53 alone (Egamberdieva et al., 2017c) (Figure 2).”