The bacteria that take care of us and their protective weapons

Research conducted at the University of Seville promotes green agriculture through microbial applications

Patricia Bernal, a Ramon y Cajal researcher in the Department of Microbiology at the Faculty of Biology at the University of Seville, works with the bacterium Pseudomonas putida, a biological control agent found in soil and plant roots that, as such, has the ability to protect plants from pathogen attacks ( Organisms that cause diseases) also known as plant pathogens. Specifically, the US researcher is studying a molecular weapon that bacteria (Type VI secretion system, or T6SS) use to wipe out their competitors.

T6SS can be compared to a poisonous tip spear that bacteria throw at their enemies to eliminate them. In a recent research paper just published in the scientific journal PNAS in which Patricia Bernall worked with researchers from Imperial College London (UK) and University of Texas at Austin (USA), the authors describe a new grouping model for these bacteria. The mechanism that allows it to be expressed very quickly and to operate instantly.

Knowledge of this protection mechanism at the molecular level is essential to optimize the biological control processes that will enable us to move towards more sustainable agriculture. Microorganisms have the answer to reconciling humans and nature. Among other things, biological control agents will allow us to move towards a form of agriculture that respects the environment and the health of animals and humans, ”Bernal says.

In a previous study, the American researcher had already described T6SS as one of the main mechanisms that P. putida uses to eliminate plant pathogens and to protect crops.


Media contact
Patricia Bernal
[email protected]http: // dx.Resonate.Deer /10.1073 /People.2008500118

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