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http://dx.doi.org/10.4489/KJM.20200039

Characterization of Green Mold Contamination caused by Penicillium brevicompactum in Hypsizygus marmoreus  

Kim, Min-Keun (Environmental Agriculture Research Division, Gyeongsangnam-do Agricultural Research and Extension Service)
Sim, Soon-Ae (Environmental Agriculture Research Division, Gyeongsangnam-do Agricultural Research and Extension Service)
Kim, Ah-Young (Environmental Agriculture Research Division, Gyeongsangnam-do Agricultural Research and Extension Service)
Kwon, Jin-Hyeuk (Environmental Agriculture Research Division, Gyeongsangnam-do Agricultural Research and Extension Service)
Chang, Young-Ho (Crop Research Division, Gyeongsangnam-do Agricultural Research and Extension Service)
Publication Information
The Korean Journal of Mycology / v.48, no.4, 2020 , pp. 397-405 More about this Journal
Abstract
Beech mushroom (Hypsizygus marmoreus) is one of the most popular mushrooms in Japan, China, and Korea because of its delicious taste, nutritious value, and unique crunchy texture. In 2018-2019, unusual signs on the mushroom were observed in mushroom farms in Gyeongnam Province. The main signs were the inhibition of mycelial growth and primordial formation on the surface of mushroom media. When green mold caused contamination at early stage, the rate of pinhead formation by the mushroom greatly decreased to 46.5-71.5%. Conidia of the causal green mold were ellipsoidal, dark green, and measured 2.0-3.1㎛ long. The optimum temperature for mycelial growth of the green mold was 25℃. The phylogenetic tree obtained from the internal transcribed spacer (ITS) rDNA sequences showed that the isolated green mold corresponded to Penicillium brevicompactum (100.0%). This is the first report of green mold contamination caused by P. brevicompactum on H. marmoreus.
Keywords
Green mold contamination; Hypsizygus marmoreus; Penicillium brevicompactum;
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