• 제목/요약/키워드: Erwinia carotovora subsp.

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Erwinia carotovora subsp. carotovora에 의한 비트 세균성 무름병 (Bacterial Soft Rot of Beet by Erwinia carotovora subsp. carotovora)

  • 박덕환;원선영;황수경;원선영;임춘근
    • 한국식물병리학회지
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    • 제14권5호
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    • pp.548-550
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    • 1998
  • Bacterial soft rot caused damage to beets massively grown in Pyungchang, Kangwon province, Korea. The affected roots and stems became cream colored and slimy, and turned black, causing the plants to become wilt and die. The casual organism isolated from the infected plants was identified as Erinia carotovora subsp. carotovora based on physiological and biochemical characteristic, and the results of the Biolog program (Biolog Inc., U.S.A.). E. carotovora subsp. carotovora is the first discribed bacterium which causes bacterial soft rot on beet in Korea.

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Erwinia carotovora subsp. carotora에 의한 고추냉이(와사비) 세균성 무름병 (Bacterial Soft Rot of Wasabi by Erwinia carotovora subsp. coarotovora)

  • 박덕환;서상태;최준근;임춘근
    • 한국식물병리학회지
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    • 제14권5호
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    • pp.555-557
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    • 1998
  • Occurrence of soft rots was observed on wasabi (Wasabia japonica Matsum) grown in Chuncheon and Pyengchang Kangwon province, Korea. The symptoms appeared on the wasabi root, which became mushy and black. This eventually resulted in wilting and death of the aboveground parts of the wasabi. The causal organism was isolated from the infected lesions and was identified as Erwinia carotovora subsp. carotovora based on the morphological, physiological and biochemical characteristics, and on the results of the Biolog program (Biolog Inc., U. S. A.). E. carotovora subsp. carotovora is the first described bacterium which causes bacterial soft rot on wasabi in Korea.

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Erwinia carotovora subsp. carotovora에 의한 메론의 세균성무름병 발생 (Occurrence of Bacterial Soft Rot of Melon Caused by Erwinia carotovora subsp. carotovora)

  • 이영근;김령희
    • 한국식물병리학회지
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    • 제12권1호
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    • pp.116-120
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    • 1996
  • 안동지방의 하우스메론 재배농장에서 메론의 과일 및 줄기에 수침상 병반이 관찰되었다. 이 병이 진전되면서 식물의 조직을 연부시키고, 마침내 식물 전체가 말라죽는다. 수침상병반에서 분리된 병원세균의 병원성과 형태적·생리적 특성을 조사한 결과, Erwinia carotovora subsp. carotovora로 동정되었다. 이 병원세균은 국내에서 시판되고 있는 농용항생제 2종과 의약용 항생제 2종에 대해 모두 감수성이었다. 이 병은 한국에서 처음 보고된 것이기에, 병명을 "메론이 세균성무름병(bacterial soft rot of melon)"이라고 부를 것을 제안한다.

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Erwinia carotovora subsp. carotovora에 의한 흰색꽃양배추 세균성 무름병 (Bacterial Soft Rot of Cauliflower by Erwinia carotovora subsp. carotovora)

  • 박덕환;류경렬;김점순;임춘근
    • 한국식물병리학회지
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    • 제14권4호
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    • pp.364-366
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    • 1998
  • Bacterial soft rot was occurrenced on stems of cauliflower at a trial field of Alpine Agricultural Experiment Station, Kangwon-Do, Korea. the symptoms began as a small water-soaked lesion, which enlarged rapidly in diameter. The tissue within the affected region became slimy, disintegrating into a mushy mass of disorganized cells. The causal organism was isolated from the diseases lesions and was identified as Erwinia carotovora subsp. carotovora based on the morphological, physiological and chemical characteristics , and on the results of the Biolog program (Biolog Inc., U. S. A.). E. carotovora subsp. carotovora is the first described bacterium which causes bacterial soft rot on cauliflower in Korea.

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Erwinia carotovora subsp. carotovora에 의한 구약감자 무름병(신칭) (Bacterial Soft Rot of Elephant Foot Caused by Erwinia carotovora subsp. carotovora)

  • 최재을;박종성;인무성;안병창
    • 한국식물병리학회지
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    • 제3권3호
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    • pp.236-238
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    • 1987
  • A bacterial disease of elephant foot, Hydrosome rivieri Engl., was newly found in Taejon, Korea in August 1986. The affected plants showed symptoms of soft rot on leaf blades and petioles. Bacterial isolates from affected plants found to be pathogenic to elephant foots by antificial inoculation, producing similar symptoms with those produced naturally. The baterium was also pathogenic to carrot, Chinese cabbage, radish, potato and onion, and developed symptom of soft root on them. On the basis of bacteriological characteristics and pathogenicity, tested bacterium was identified as Erwinia carotovora subsp. carotovora and this disease was proposed to name 'Bacterial soft rot of elephant foot'.

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Erwinia carotovora subsp. carotovora에 의한 고추 마디 무름병 (Bacterial Node Soft Rot of Pepper (Capsicum annuum L.) Caused by Erwinia carotovora subsp. carotovora)

  • 정기채;임진우;김승한;임양숙;김종완
    • 한국식물병리학회지
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    • 제14권6호
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    • pp.741-743
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    • 1998
  • A bacterial disease of pepper (Capsicum annuum L.) that rooted the stem nodes to black was found in pepper plants which cultivated in plastic house at Chungdo, Kyungpook, Korea in March, 1998. Bacterial isolates derived from the diseased peppers were pathogenic to potato, eggplant and Chinese cabbage but, was not pathogenic to chrysanthemum by artificial inoculation. On the basis of bacteriological characteristics and pathogenicity test on host plants, the causal organism of the node soft rot of pepper is identified as Erwinia carotovora subsp. carotovora and the name of disease is proposed as bacterial node soft rot of pepper.

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뽕나무에서 Erwinia carotovora subsp. carotovora의 분리 (Pathogenicity and Bacteriological Characterization of Erwinia carotovora subsp. carotovora isolated from Mulberry Trees)

  • 김영택;김창욱
    • 한국잠사곤충학회지
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    • 제32권2호
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    • pp.101-104
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    • 1990
  • 가을철 가지뽕 수확 후 가지의 절단부위 가운데 건증상을 띤 병$에서 Erwinia carotovora subsp. carotovora가 분리 동정되었다. 1)본 세균은 간장으로 4-8개의 주성모를 가진 0.4-0.8$\times$1.66-2.25$\mu\textrm{m}$ 크기의 임의혐기성 세균으로 감자,당근 절편을 $폐시키고 뽕나무에 강한 병워성을 갖고 있다. 2)King's B배지에서 난백색 균총을 형성하고 Gram 및 Inositol test 결과 음성반응, Pectin을 분해, Gelatin을 액화시켰다. 3)본 세균은 분류학적 특성이 Erwinia carotovora suasp. carotovora와 일치하였으며 일본에서 1978년에 보고된 바 있으나 국내 미기록 세균이다.

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백합과(百合科) 채소(菜蔬)의 세균성(細菌性) 부패병(腐敗病)에 관(關)한 연구(硏究) 1. 양파 부패(腐敗)를 일으키는 Erwinia 속(屬) 세균(細菌)의 동정(同定) (Studies on the Bacterial Soft Rot Disease of Lilliaceae Crops 1. Identification of Erwinia Causing Soft Rot of Onion)

  • 한광섭;최재을
    • 농업과학연구
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    • 제16권1호
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    • pp.19-25
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    • 1989
  • 전국(全國)의 주요(主要) 재배단지(栽培團地)와 시장(市場)으로 부터 양파 부패병반(腐敗病斑)을 수집(蒐集)하여 병원세균(病原細菌)을 분리(分離)하였다. 분리세균(分離細菌)의 세균학적(細菌學的) 특성(特性)과 병원성(病源性)에 따라 분리세균(分離細菌)은 Erwinia carotovora subsp. carotovora, E. rhapontici, 및 E. chrysanthemi로 동정(同定)되었다. 경우에 따라서는 한개의 양파 병반(病斑)으로 부터 2 종류(種類)의 세균(細菌)이 분리(分離)되는 것으로 보아 포장(圃場)이나 저장중(貯藏中)에 2 종류(種類)의 세균(細菌)이 복합감염(複合感染)된 것으로 추정되었다. 따라서, E. carotovora subsp. carotovora, E. rhapontici 및 E. chrysanthemi에 의한 양파 세균성(細菌性) 썩음병을(病) 통합(統合)하여 "양파 무름병(病)" (bacterial soft rot of onion)으로 할것을 제안(提案)한다.

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Characterization of Korean Erwinia carotovora Strains from Potato and Chinese Cabbage

  • Seo, Sang-Tae;Koo, Jun-Hak;Hur, Jang-Hyun;Lim, Chun-Keun
    • The Plant Pathology Journal
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    • 제20권4호
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    • pp.283-288
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    • 2004
  • Four Erwinia carotovora strains isolated from potatoes showing blackleg symptoms and rotted Chinese cabbage were analysed by biochemical tests and sequence analysis of 16S rDNA and 16S-23S rRNA intergenic spacer (IGS) regions, and the data were compared to related E. carotovora strains. Based on the results of the biochemical tests and sequence analysis, 2 of the 4 strains were identified as E. carotovora subsp. carotovora (Ecc), whereas the rest strains were distinct from Ecc. The last two strains, HCC3 and JEJU, were biochemically similar to E, carotovora subsp. atroseptica (Eca). However, the results of sequence analysis and Eca-specific PCR assays showed that the strains were distinct from Eca. On the basis of 16S rDNA sequence analysis, HCC3 and JEJU strains were placed in E. carotovora subsp. odorifera and E. carotovora subsp. wasabiae, respectively. The results of sequence analysis and specific PCR assay for Eca indicated that Asian Eca strains were distinct from European Eca strains, although they were phenotycally homogeneous.

탄소원과 배양온도가 식물 병원세균의 Pectate lyase 생산에 미치는 영향 (Effect of Carbon Sources and Culture Temperature on Pectate Lyase Production in Phytopathogenic Bacteria)

  • 한광섭;최재을
    • 한국식물병리학회지
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    • 제14권2호
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    • pp.125-129
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    • 1998
  • Phytopathogenic bacteria causing soft-rot many vegetables; extracellular enzymes produced by them, pectate lyase(Pel) is important pathogenicity facotrs which cause tissue maceration and cell death. Ten of seventeen plant pathogenic bacteria showed weak Pel activity, four of them showed low Pel activity and Erwinia acrotovora subsp. carotovora, E. chrysanthemi, Pseudomonas marginalis and Xanthomonas campestris pv. campestris showed high Pel activity in the polygalacturonate yeast extract agar (PAY) plate. High Pel activity of the four bacteria species produced the highest Pel activity when pectin or polygalacturonic acid (PGA) was added to minimal salts (MS) medium. Pel activity of the four bacterial species was the highest at 2$0^{\circ}C$ among different temperature conditions. The rate and amount of maceration of potato tuber tissue were highest at 2$0^{\circ}C$ in E. carotovora subsp. carotovora, E. chrysanthemi and P. marginalis, while those were the highest at $25^{\circ}C$ in X. campestris pv. campetris.

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