Phytohormone mediation of interactions between plants and non-symbiotic growth promoting bacteria under edaphic stresses
- 1UFA Federal Research Centre, Russian Academy of Sciences, Russia
- 2Lancaster Environment Centre, Lancaster University, United Kingdom
The capacity of rhizoshere bacteria to influence plant hormonal status, by bacterial production or metabolism of hormones, is considered an important mechanism by which they promote plant growth and productivity. Nevertheless, inoculating these bacteria into the plant rhizosphere may produce beneficial or detrimental results depending on bacterial effects on hormone composition and quantity in planta, and the environmental conditions under which the plants are growing. This review considers some effects of bacterial hormone production or metabolism on root growth and development and shoot physiological processes. We analyze how these changes in root and shoot growth and function help plants adapt to their growth conditions, especially as these change from optimal to stressful. Consistent effects are addressed, along with plant responses to specific environmental stresses: drought, salinity and soil contamination (with petroleum in particular).
Keywords: PGPR, plant hormones, drought, Salinity, oil pollution
Received: 05 Jul 2019;
Accepted: 04 Oct 2019.
Copyright: © 2019 Kudoyarova, Arkhipova, Korshunova, Bakaeva, Loginov and Dodd. This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
* Correspondence: Prof. Guzel Kudoyarova, UFA Federal Research Centre, Russian Academy of Sciences, Moscow, Russia, firstname.lastname@example.org