동충하초 재배상 내 기형균 및 오염균의 발생현황 및 특성 = Occurrence and Characteristics of other Fungi in the Artificial Cultivation Farms of Paecilomyces tenuipes

국문 초록 (Abstract)

7개도 22개 재배농가로부터 수집한 시료는 총 529점이었으며, 수집균은 두 가지 유헝으로 구분되며 생육장애에 의한 기형균은 23.2%, 오염균은 50.9%였다.
생육장애는 C-1, C-2, C-3 및 C-4의 4가지 유형이 있으며 이들 분생자병속은 20∼70여 개가 발생되는데 회색, 순백색 또는 등황색을 띤다. 분생자병속 말단은 분지하지 않고 기주 표피에 각각 고유색상을 띠며 PDA 배지상에서 균사생장량은 14일간 43∼75 mm 범위로 눈꽃동충하초균보다 빠른 생장을 보인다.

다국어 초록 (Multilingual Abstract)

Occurrence and charaberistics of infectious fungi and physiologically abnormal Paecilomyces tenuipes were examined. These unfavorable fungi are recently known to cause yield loss, decreased quality of products in artificial cultivation farms of P. tenuipes. Total 529 fungal isolates were collected from 22 farms of 7 provinces. These isolates were composed of physilolgically abnormal P. genuipes strains and other infectious fungal strains, which constituted 23.2% abd 50.9%,k resoectuvekt. Physiologecally abnormal P. tenuipes strains showed irregular synemata,k and absence of local color. They were divided into 4 type of C-1, C-2, C-3,and C-4. Other infectious fungal strains were idevified to 5 species,Bearveria bassiana, Fusarium sp., P.fumosoroseus, Tricothecium roseum,k Aspergillus parasiticus,k which were 22.1, 13.8, 7.6, 40. and 3.4%, respectively. All of them were hyphomycetous fungi, did not produce synemata, and revealed faster growth rate than that of P. tenuipes.