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Draft Genome Sequence of a Chitinase-Producing Biocontrol Bacterium, Lysobacter antibioticus HS124
Gardener, Brian B. McSpadden,Kim, In Seon,Kim, Kil Yong,Kim, Young Cheol The Korean Society of Plant Pathology 2014 식물병연구 Vol.20 No.3
Lysobacter antibiocus HS124 is a chitinase-producing rhizobacterium with proven capacities to suppress plant diseases. Bacterial cultures of L. antibioticus HS124 showed strong biocontrol efficacies against various plant diseases compared to those of bacterial cultures of Bacillus subtilis QST713 which is an active ingredient of a commercial biopesticide, Serenade. Here, we report the draft genome sequence and automated annotation of strain HS124. This draft genome sequence indicates the novelty of L. antibiocus HS124 and a subset of gene functions that may be related to its biocontrol activities.
Draft Genome Sequence of a Chitinase-Producing Biocontrol Bacterium, Lysobacter antibioticus HS124
Brian B. McSpadden Gardener,김영철,김인선,김길용 한국식물병리학회 2014 식물병연구 Vol.20 No.3
Lysobacter antibiocus HS124 is a chitinase-producing rhizobacterium with proven capacities to suppress plant diseases. Bacterial cultures of L. antibioticus HS124 showed strong biocontrol efficacies against various plant diseases compared to those of bacterial cultures of Bacillus subtilis QST713 which is an active ingredient of a commercial biopesticide, Serenade. Here, we report the draft genome sequence and automated annotation of strain HS124. This draft genome sequence indicates the novelty of L. antibiocus HS124 and a subset of gene functions that may be related to its biocontrol activities.
박준경,Brian McSpadden Gardener,이승환,이장훈,한송희,강훈승,김진철,김영철 한국식물병리학회 2013 Plant Pathology Journal Vol.29 No.2
Diverse bacteria are known to colonize plants. However,only a small fraction of that diversity has been evaluated for their biopesticide potential. To date, the criteria for sampling and selection in such bioprospecting endeavors have not been systematically evaluated in terms of the relative amount of diversity they provide for analysis. The present study aimed to enhance the success of bioprospecting efforts by increasing the diversity while removing the genotypic redundancy often present in large collections of bacteria. We developed a multivariate sampling and marker-based selection strategy that significantly increase the diversity of bacteria recovered from plants. In doing so, we quantified the effects of varying sampling intensity, media composition, incubation conditions,plant species, and soil source on the diversity of recovered isolates. Subsequent sequencing and highthroughput phenotypic analyses of a small fraction of the collected isolates revealed that this approach led to the recovery of over a dozen rare and, to date, poorly characterized genera of plant-associated bacteria with significant biopesticide activities. Overall, the sampling and selection approach described led to an approximately 5-fold improvement in efficiency and the recovery of several novel strains of bacteria with significant biopesticide potential.
조송미,박주연,한송희,Anne J. Anderson,Kwang Yeol Yang,김영철,Brian McSpadden Gardener 한국식물병리학회 2011 Plant Pathology Journal Vol.27 No.3
Root colonization of Arabidopsis thaliana with Pseudomonas chlororaphis O6 induces systemic tolerance against diverse pathogens, as well as drought and salt stresses. In this study, we demonstrated that 11 genes in the leaves were up-regulated, and 5 genes were down-regulated as the result of three- to five-days root colonization by P. chlororaphis O6. The identified priming genes were involved in cell signaling, transcription, protein synthesis,and degradation. In addition, expression of selected priming genes were induced in P. chlororaphis O6-colonized plants subjected to water withholding. Genes encoding defense proteins in signaling pathways regulated by jasmonic acid and ethylene, such as VSP1and PDF1.2, were additional genes with enhanced expression in the P. chlororaphis O6-colonized plants. This study indicated that the expression of priming genes, as well as genes involved in jasmonic acid- and ethylene-regulated genes may play an important role in the systemic induction of both abiotic and biotic stress due to root colonization by P. chlororaphis O6.
Park, Jun-Kyung,Lee, Seung-Hwan,Lee, Jang-Hoon,Han, Songhee,Kang, Hunseung,Kim, Jin-Cheol,Kim, Young Cheol,McSpadden Gardener, Brian The Korean Society of Plant Pathology 2013 Plant Pathology Journal Vol.29 No.2
Diverse bacteria are known to colonize plants. However, only a small fraction of that diversity has been evaluated for their biopesticide potential. To date, the criteria for sampling and selection in such bioprospecting endeavors have not been systematically evaluated in terms of the relative amount of diversity they provide for analysis. The present study aimed to enhance the success of bioprospecting efforts by increasing the diversity while removing the genotypic redundancy often present in large collections of bacteria. We developed a multivariate sampling and marker-based selection strategy that significantly increase the diversity of bacteria recovered from plants. In doing so, we quantified the effects of varying sampling intensity, media composition, incubation conditions, plant species, and soil source on the diversity of recovered isolates. Subsequent sequencing and high-throughput phenotypic analyses of a small fraction of the collected isolates revealed that this approach led to the recovery of over a dozen rare and, to date, poorly characterized genera of plant-associated bacteria with significant biopesticide activities. Overall, the sampling and selection approach described led to an approximately 5-fold improvement in efficiency and the recovery of several novel strains of bacteria with significant biopesticide potential.
Draft Genome Sequence of the Biocontrol Bacterium Chromobacterium sp. Strain C-61
Kim, H. J.,Park, J. Y.,Han, S. H.,Lee, J. H.,Rong, X.,McSpadden Gardener, B. B.,Park, S. K.,Kim, Y. C. American Society for Microbiology 2011 Journal of Bacteriology Vol.193 No.23
<P>Chromobacterium sp. strain C-61 is a plant-associated bacterium with proven capacities to suppress plant diseases. Here, we report the draft genome sequence and automatic annotation of strain C-61. A comparison of this sequence to the sequenced genome of Chromobacterium violaceum ATCC 12472 indicates the novelty of C-61 and a subset of gene functions that may be related to its biocontrol activities.</P>
Park, J. Y.,Han, S. H.,Lee, J. H.,Han, Y. S.,Lee, Y. S.,Rong, X.,McSpadden Gardener, B. B.,Park, H.-S.,Kim, Y. C. American Society for Microbiology 2011 Journal of Bacteriology Vol.193 No.23
<P>Pseudomonas putida B001 is a rhizobacterium that was isolated on the basis of its abilities to grow under low-nutrient conditions and induce systemic resistance against bacterial, fungal, and viral diseases of plants. Here we report the draft genome sequence and automatic annotation of strain B001. Comparison of this sequence to the sequenced genome of P. putida KT2440 points to a subset of gene functions that may be related to the defense-inducing functions of B001.</P>
Cho, Song-Mi,Park, Ju-Yeon,Han, Song-Hee,Anderson, Anne J.,Yang, Kwang-Yeol,Gardener, Brian Mcspadden,Kim, Young-Cheol The Korean Society of Plant Pathology 2011 Plant Pathology Journal Vol.27 No.3
Root colonization of Arabidopsis thaliana with Pseudomonas chlororaphis O6 induces systemic tolerance against diverse pathogens, as well as drought and salt stresses. In this study, we demonstrated that 11 genes in the leaves were up-regulated, and 5 genes were down-regulated as the result of three- to five-days root colonization by P. chlororaphis O6. The identified priming genes were involved in cell signaling, transcription, protein synthesis, and degradation. In addition, expression of selected priming genes were induced in P. chlororaphis O6-colonized plants subjected to water withholding. Genes encoding defense proteins in signaling pathways regulated by jasmonic acid and ethylene, such as VSP1 and PDF1.2, were additional genes with enhanced expression in the P. chlororaphis O6-colonized plants. This study indicated that the expression of priming genes, as well as genes involved in jasmonic acid- and ethylene-regulated genes may play an important role in the systemic induction of both abiotic and biotic stress due to root colonization by P. chlororaphis O6.