• Title/Summary/Keyword: anthrancnose

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Ginseng Anthracnose Caused by Colletotrichum dematium

  • Han, Kee-Don;Alam, Shahidul;Lee, Tae-Soo;Lee, Min-Woong
    • The Plant Pathology Journal
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    • v.20 no.3
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    • pp.196-199
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    • 2004
  • Ginseng anthracnose was observed in Koyang area, Korea. A fungus was repeatedly isolated from leaves and stems of the infected ginseng plants and identified as Colletotrichum dematium according to the morpho-logical and cultural characteristics. The fungus showed pathogenicity on inoculated ginseng leaves. This is the first report of ginseng anthracnose caused by Colletotri-chum dematium in Korea.

Anthracnose of Perilla Caused by Colletotrichum spp. and Glomerella cingulata

  • Kim, Wan-Gyu;Lee, Byung-Dae;Cho, Weon-Dae;Shin, Dong-Bum
    • The Plant Pathology Journal
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    • v.17 no.4
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    • pp.236-241
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    • 2001
  • Serve outbreaks of anthracnose were observed on perilla plants grown in greenhouses and open fields in several locations in Korea during the disease survey from 1997 to 2000. A total of 53 isolates of Colletotrichum spp. and Glomerella sp. was obtained from diseased perilla plants and identified based on their morphological and cultural characteristics. Forty isolates were identified as Colletotrichum gloeosporioides, three isolates as C. coccodes, five isolates as C. dematium, and the other five isolates as Glomerella cingulata, the teleomorph of C. gloeosporioides. All isolates of C. gloeosporioides tested by artificial inoculation were strongly virulent on perilla plants, but isolates of the other species were weakly or not virulent. Anthracnose symptoms induced on the perilla plants by artificial inoculation with the isolates of C. gloeosporioides were similar to those observed in the fields. This study revealed that C. gloeosporioides is the main causal fungus of perilla anthracnose.

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Biological Control of Phytophthora Blight and Anthracnose Disease in Red-pepper Using Bacillus subtilis S54 (Bacillus subtilis S54 균주를 이용한 고추 역병과 탄저병의 생물학적 방제)

  • Lee, Gun-Woong;Kim, Myung-Jun;Park, Jun-Sik;Chae, Jong-Chan;Soh, Byoung-Yul;Ju, Jae-Eun;Lee, Kui-Jae
    • Research in Plant Disease
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    • v.17 no.1
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    • pp.86-89
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    • 2011
  • Phytophthora blight and anthracnose disease caused by Phytophthora capsici and Collectotrichum gloeosporioides are the most important devastating diseases of red pepper plants, worldwide. Five different bacterial isolates were isolated from the red pepper rhizosphere and non-rhizosphere soil and subsequently tested for antagonistic activity against P. capsisi and C. gloeosporioides. The area of the inhibition zone was taken as a measure for antagonistic activity. Among the 5 isolates tested, S54 exhibited a maximum antagonistic activity under in vitro and in vivo conditions. In greenhouse studies the isolate has successfully reduced the disease symptom. Protect value was 80.8% (Phytophthora blight) and 81.9% (Anthrancnose disease), whereas the infection rate of control plants was 21.3% and 23.2%. Based on the 16S rDNA sequence and API 50CHB Kit analysis the most effective isolate was identified as Bacillus subtilis. The results of the study indicate that the stratin S54 could be used as an potential biological control of Phytophthora blight and anthracnose disease of red pepper.