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Report on the Genus Cordyceps and Its Anamorphs Collected in Korea  

Nam, Sung-Hee (Department of Agricultural Biology, National Institutue of Agricultural Science Technology, RDA)
Jung, I-Yeon (Department of Agricultural Biology, National Institutue of Agricultural Science Technology, RDA)
Hong, In-Pyo (Department of Agricultural Biology, National Institutue of Agricultural Science Technology, RDA)
Ji, Sang-Duk (Department of Agricultural Biology, National Institutue of Agricultural Science Technology, RDA)
Hwang, Jae-Sam (Department of Agricultural Biology, National Institutue of Agricultural Science Technology, RDA)
Nguyen, Mau Tuan (College of Agriculture and Life Science, Kyungpook National University)
Han, Myung-Sae (College of Agriculture and Life Science, Kyungpook National University)
Publication Information
Journal of Sericultural and Entomological Science / v.47, no.1, 2005 , pp. 18-30 More about this Journal
Abstract
Morphological characteristics of Cordyceps species and its allies collected in Korea were clarified. Through the survey conducted from June 1999 to October 2002 in 19 mountains in Korea, 667 samples of entomogenous fungi were collected. Cordyceps and its allies of 17 species of 5 genera were identified as Cordyceps gracilioides, C. japonica, C. longissima, C. martialis, C. militaris, C. myrmecophila, C. nutans, C. pruinosa, C. sphecocephala, C. tricentri, Hirsutella nutans, Paecilomyces cicadae, P. farinosus, P. tenuipes, Paecilomyces sp., Shimizuomyces paradoxa, Tilachlidiopsis nigra. The fungi with insect hosts have been collected mainly in the place of shade or mosses near brooks and streams that had high humidity. Overall the frequenct of fungal infection in natural ecosystem was relatively low as few as 10 collections per each species. However, many species were found in terms of the few number of colleciton sites with seasonal limitations. Occurrence of the fungi in Jeju island remote from inland of the Korean peninsula were diverse in their species due to the varied weather of vertical distribution following the altitude. Three most common species were C. nutans, P. tenuipes and C. militaris, mainly found early in August when the relative humidity and temperature were high, of which C. nutans occupied the highest frequency consisting of 65% in total collections. Neither variation in ascomata arrangement in stromata nor developement of secondary spores was recognizable, while the number, shape and colour of stromata varied with insect hosts and weather conditions.
Keywords
Entomopathogenic Fungi; Cordyceps; Paecilomyces;
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