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KMID : 0545120130230081147
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Journal of Microbiology and Biotechnology
2013 Volume.23 No. 8 p.1147 ~ p.1153
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Biocontrol of Pectobacterium carotovorum subsp. carotovorum Using Bacteriophage PP1
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Lim Jeong-A
Jee Samnyu
Lee Dong-Hwan
Roh Eun-jung
Jung Kyu-Suk
Oh Chang-Sik
Heu Sung-Gi
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Abstract
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Pectobacterium carotovorum subsp. carotovorum (formerly Erwinia carotovora subsp. carotovora) is a plant pathogen that causes soft rot and stem rot diseases in several crops, including Chinese cabbage, potato, and tomato. To control this bacterium, we isolated a bacteriophage, PP1, with lytic activity against P. carotovorum subsp. carotovorum. Transmission electron microscopy revealed that the PP1 phage belongs to the Podoviridae family of the order Caudovirales, which exhibit icosahedral heads and short non-contractile tails. PP1 phage showed high specificity for P. carotovorum subsp. carotovorum, and several bacteria belonging to different species and phyla were resistant to PP1. This phage showed rapid and strong lytic activity against its host bacteria in liquid medium and was stable over a broad range of pH values. Disease caused by P. carotovorum subsp. carotovorum was significantly reduced by PP1 treatment. Overall, PP1 bacteriophage effectively controls P. carotovorum subsp. carotovorum.
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KEYWORD
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PP1 bacteriophage, Pectobacterium carotovorum subsp. carotovorum, biocontrol, soft rot disease
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