Bacterias Gram positivas, sus aplicaciones y estrés

Departamento de Química Biológica, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires.

IQUIBICEN-CONICET

The laboratory objective is to study the adaptive changes that bacteria undergoes when exposed to an osmotic stress. Aspects of the physiology and metabolism, and genetic circuits of the stress response has been determined, and their relation with the structural changes in the envelope that are essential for the growth in extreme environments. These results are relevant not only as basic knowledge but also in application. Stress responses are directly related to stationary phase. The micro-organisms used Bacillus subtilis, B. sphaericus, B. thuringiensis, Lactobacillus casei are employed in several biotechnological processes where better knowledge of genetic, metabolic and structural modification would result in the improvement of specific industrial processes.


Lines of work

 

Physiological and genetic modifications of the proteolytic system by osmotic stress in Lb. casei 

 

Structure and composition of the cell envelop during osmotic stress in B. subtilis and Lb. casei

 

Heavy metals uptake using Gram positive bacteria and associated polymers

 

Production of crystal toxin under stress conditions in B. thuringiensis and B. sphaericus

 

Isolation and characterisation of new entomopathogenic strains with improved mosquitocidal activity 

 

                        Spore germination of B. subtilis


 

 

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