Novel N-acylhomoserine lactone-degrading bacteria isolated from the leaf surface of Solanum tuberosum and their quorum-quenching properties.
We isolated and identified AHL-degrading bacteria from the leaf surface of Solanum tuberosum. The 16 isolates inactivated both short- and long-chain AHLs. Two of these isolates, identified as Microbacterium testaceum, showed putative AHL-lactonase activity. These two strains interrupted quorum-sensing dependent bacterial infection by plant pathogen Pectobacterium carotovorum subsp. carotovorum. M. testaceum strains, which were isolated in this study, might be useful in the biocontrol of plant diseases.
Morohoshi
Tomohiro
T
Department of Material and Environmental Chemistry, Graduate School of Engineering, Utsunomiya University, 7-1-2 Yoto, Utsunomiya, Tochigi 321-8585, Japan. morohosi@cc.utsunomiya-u.ac.jp
Someya
Nobutaka
N
Ikeda
Tsukasa
T
D015107:4-Butyrolactone / Q000031:analogs & derivatives* / Q000378:metabolism; D001483:Base Sequence; D017931:DNA Primers; D006094:Gram-Positive Bacteria / Q000201:enzymology / Q000378:metabolism*; D016973:Pectobacterium carotovorum / Q000201:enzymology / Q000378:metabolism*; D018515:Plant Leaves / Q000382:microbiology*; D053038:Quorum Sensing; D011198:Solanum tuberosum / Q000382:microbiology*
D017931:DNA Primers; C088386:homoserine lactone; D015107:4-Butyrolactone