Coexistence among Epiphytic Bacterial Populations Mediated through Nutritional Resource Partitioning.

摘要: The levels of coexistence between Pseudomonas syringae and various nonpathogenic epiphytic species in the phyllosphere beans (Phaseolus vulgaris) were assessed by using replacement series. fluorescens, Pantoea agglomerans, Stenotrophomonas maltophilia, Methylobacterium organophilum all capable exhibiting higher with P. than was observed a near-isogenic strain pair. ecological similarity epiphytes estimated niche overlap indices derived from vitro carbon source utilization profiles. level inversely correlated strains. Hence, proportional to degree differentiation, defined as ability utilize sources not utilized competing strain. Comparisons profiles for groups (amino acids, organic carbohydrates) indicated types which strains likely competed bean phyllosphere. fluorescens probably most sources. S. maltophilia M. acids but few amino or carbohydrates. agglomerans A variable reflected variability abundance carbohydrates that exclusively.