형태적 특성에 의한 벼과작물 종자전염 Penicillium spp.의 동정

Abstract

1997년부터 2003년에 걸쳐 우리나라에서 수확된 보리, 율무, 옥수수, 수수, 벼에서 총 81개의 Penicillium 속균을 분리하였다. 분리된 Penicillium 속균의 배양적 형태적 특징을 이용하여 종을 동정한 결과 P. citrinum, P. chrysogenum, P cyclopium, P. oxalicum, P. polonicum, P. purpurogenum 그리고 P. viridicatum으로 동정되었다. 이 중에서 P. cyclopium, P. polonicum, P. purpurogenum은 국내에서 처음 보고되는 미기록종들이다. A total of 81 isolates of Penicillium were isolated from postharvest seeds of barely, Job's-tears, maize, sorghum and rice from 1997 to 2003. Based on the morphological characteristics, they were identified as P. chrysogenum, P. citrinum, P. cyclopium, P. oxalicum, P. polonicum, P. purpurogenum and P. viridicatum. P. chrysogenum was detected from Job's-tears, rice and sorghum seeds, P. citrinum from maize seeds, P. cyclopium from sorghum seeds, P. oxalicum from barely, maize, sorghum and rice seeds, P. purpurgenum from maize, rice, sorghum seeds, P. viridicatum from Job's-tears, maize and rice seeds, P. polonicum from Job's-tears, maize, rice and sorghum seeds. Among these species, P. cyclopium, P. polonicum and P. purpurogenum were first reported in Korea. Especially, about 50% of the Penicillium isolates detected from the seeds were P. polonicum. Identification of the Penicillium species using morphological characteristics was difficult especially for the species belonging to the subgenus Penicillium such as P. polonicum.