Highly diverse endophytic and soil Fusarium oxysporum populations associated with field-grown tomato plants.

ABSTRACT: The diversity and genetic differentiation of populations of Fusarium oxysporum associated with tomato fields, both endophytes obtained from tomato plants and isolates obtained from soil surrounding the sampled plants, were investigated. A total of 609 isolates of F. oxysporum were obtained, 295 isolates from a total of 32 asymptomatic tomato plants in two fields and 314 isolates from eight soil cores sampled from the area surrounding the plants. Included in this total were 112 isolates from the stems of all 32 plants, a niche that has not been previously included in F. oxysporum population genetics studies. Isolates were characterized using the DNA sequence of the translation elongation factor 1α gene. A diverse population of 26 sequence types was found, although two sequence types represe

SUBMITTER: Demers JE 

PROVIDER: S-EPMC4272710 | biostudies-literature | 2015 Jan

REPOSITORIES: biostudies-literature