The Skin Sooty Dapple Disease of Pear Caused by Fungi

곰팡이에 의해 발생하는 배 과피얼룩병

Park, Young-Seob;Kim, Ki-Chung;Suh, Heung-Soo;Kim, Young-Cheol;Cho, Bae-Ho;Hwang, Yong-Soo
박영섭;김기청;서흥수;김영철;조배호;황용수

  • Published : 20080300

Abstract

This new disease was named as skin sooty dapple disease of Asian pear, and isolated 123 isolates from the infected plants. After bioassay for pathogenicity of each isolate, 114 isolates were selected for further studies. Each isolate was identified by morphological characteristics under microscopic observations. The isolates were identified as Cladosporium, Tripospermum, Tilletiopsis, and Leptosphaerulina, and some isolates did not form any spore. Among the isolates, 74% of the isolates were identified as Cladosporium spp., 5-7% of the isolates were identified as Leptosphaerulina, Tripospermum, Tilletiopsis, and unidentified species, respectively. This result indicates that Cladosporium isolates could be main pathogens for skin sooty dapple disease of Asian pear. In addition, only Cladosporum isolates caused mild maceration on pericarp by injection of inoculum suspensions.

동양배에서 발생하고 있는 배 과피얼룩병은 증상적으로는 미국이나 일본에서 발생하는 sooty blotch와 유사하나, 병원균에 있어서는 앞에서 언급한 바와 같이 전혀 다른 균들이 관여하고 있는 것이다.이들 여러 가지 병원성 관련균114종을 병원성을 확인하였고, 검출빈도가 가장 높은 것은 74.4%를 점하는 Cladosporium spp.이고 기타 균들인 Leptosphaerulina, Tilletiopsis, Tripospermum, Sporobolomyces 및 Mycelia Sterilia은 각각 5~7%이므로, Cladosporium 균이 과피얼룩병을 일으키는 가장 중요한 병원균이라 할 수 있다.

Keywords

References

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