Exploration of intraclonal adaptation mechanisms of Pseudomonas brassicacearum facing cadmium toxicity.

Abstract excerpt

Pseudomonas brassicacearum forms phenotypic variants in vitro as well as in planta during root colonization under natural conditions, leading to subpopulations (phase I and II cells) that differ in colony morphology and production of exoenzymes/secondary metabolites. The maximal concentration of cadmium allowing both variants growth was 25 muM; however, phase II cells accumulated fivefold higher Cd than phase I...

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