Effect of phenotypic plasticity on epiphetic survival and colonization by Pseudomonas syringae

Article Abstract:

An assessment of the impact of phenotypic plasticity in risk evaluation studies, epidemiolgy and microbial antagonist biological control is discussed. This was done by investigating the effect of this plasticity on the epiphytic survival and colonization potential of Pseudomonas syringae. Experiments were conducted with three incubation conditions and ultraviolet tolerance was measured for each bacteria. The effect of cultural conditions on phenotypic traits was demonstrated.

Genetic aspects, Phenotype, Phenotypes, Pseudomonas syringae

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Enhanced epiphytic coexistence of near-isogenic salicylate-catabolizing and non-salicylate-catabolizing Pseudomonas putida strains after exogenous salicylate application

Article Abstract:

Experimental studies using the near-isogenic bacterial strain pair Pseudomonas putida R20 and R20(pNAH7) reveal that presence of exogenous salicylate increases the epiphytic coexistence of R20 and R20(pNAH7). Absence of exogenous salicylate leads to competition for endogenous carbon by R20 and R20(pNAH7). These results support the hypothesis that nutritional resource partitioning helps achieve the epiphytic coexistence.

Physiological aspects, Pseudomonas putida, Salicylates

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Conditional survival as a selection strategy to identify plant-inducible genes of Pseudomonas syringae

Article Abstract:

Research describes a novel strategy to efficiently identify Pseudomonas syringae genes on the leaf surface for quantifying epiphytic fitness of the bacterium. The habitat-inducible rescue of survival genetic screening system relies on the production of an endogenous factor involved in the complementation of a conditionally lethal phenotype.

United States, Research and Development in the Physical, Engineering, and Life Sciences, Science & research, Plant Genetics, Methods, Bacterial genetics, Gene expression, Genetic screening, Genetic testing, Genes

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