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- Title
Phylogenetic analyses of plant-growth-promoting rhizobacteria isolated from tomato, lettuce, and Japanese pepper plants in Hyogo Prefecture, Japan.
- Authors
Kumatani, Tomohiro; Yoshimi, Yukihiko; Nakayashiki, Hitoshi; Aino, Masataka
- Abstract
Approximately 30,000 fluorescent bacterial strains isolated from tomato, lettuce, eggplant, Chinese cabbage, and Japanese pepper plants at seven different locations in Hyogo Prefecture, were screened for plant-growth-promoting (PGP) activity to induce disease resistance against bacterial wilt in tomato. The 37 strains that had higher PGP activity were subjected to molecular phylogenetic analyses using the sequences of the 16S rRNA, gyrB and rpoD genes. Most of the strains were identified as Pseudomonas fluorescens or its close relative, P. putida, while a few strains were grouped with more distantly related bacterial species such as Enterobacter and Stenotrophomonas. The phylogenetic relationships among tomato and lettuce isolates mostly coincided with the source locality and host plants, with a few exceptions. In contrast, isolates from Japanese pepper plants did not form their own cluster but represented several different bacterial species.
- Subjects
HYOGO-ken (Japan); JAPAN; PHYTOPATHOGENIC bacteria; PLANT growth; TOMATO wilts; DISEASE resistance of plants; MOLECULAR phylogeny; PSEUDOMONAS fluorescens
- Publication
Journal of General Plant Pathology, 2009, Vol 75, Issue 4, p316
- ISSN
1345-2630
- Publication type
Article
- DOI
10.1007/s10327-009-0169-x