Predictive Scenario for the Behaviours of Pseudomonas Aeruginosa in the Face of Global Warming

Abstract

Microbial biotechnology can provide solutions for sustainable development, including in food supply and in the regulation (e.g. of diseases or greenhouse gas emissions and sequestration) of ecosystem services for humans, animals and plants. The aim of this study was to assess the ability of Pseudomonas aeruginosa to produce plant growth-promoting compounds in response to sudden changes in temperature in order to predict future scenarios of the behaviours of this bacterial species in the face of global warming. The results of this study reveal that Ps. aeruginosa has the ability to biologically fix nitrogen, produce siderophores, solubilize zinc and phosphates at temperature changes from 37 to 45°C. This is the first study of the adaptability of the native strain isolated from arsenic-tolerant tropical pasture rhizosphere and of retaining the production of compounds directly involved in plant growth promotion up to 45°C.