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ISSN : 1738-0294(Print)
ISSN : 2288-8853(Online)
Journal of Mushrooms Vol.15 No.3 pp.129-133

Characterization and breeding of a new cultivar Pleurotus ostreatus ‘Heuksol’

Min-Ji Oh, Ji-Hoon Im, Pyung-Gyun Shin, Youn-Lee Oh, Kab-Yeul Jang, Won-Sik Kong*
Mushroom Research Division, National Institute of Horticultural & Herbal Science, RDA, Chungbuk Eumseong 27709, Korea
*Corresponding author
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Tel : +82-43-871-5719


Oyster mushroom is a type of mushroom that is commonly cultivated and consumed in Korea. P. ostreatus ‘Suhan’ is a preferred cultivar for many mushroom farmers because it has a dark pileus and thick stipe. However, as it is very sensitive to environmental conditions, farmers consistently demand an alternative cultivar. To develop a new cultivar, the parental strains KMCC01680 (‘Suhan’) and KMCC00478 (‘Gosol’) were selected from various collected P. ostreatus strains by cultivating genetic resources. P. ostreatus ‘Heuksol’ was developed by the method of Mon-Mon crossing between monokaryotic strains derived from ‘Suhan’ and ‘Gosol’. Thirty strains of 174 crossed strains were initially selected by cultivation experiments. After bulk cultivation tests, ‘Heuksol’ was selected. The nuclear DNA profile of ‘Heuksol’ was similar to those of the parental strains, ‘Suhan’ and ‘Gosol’, when RAPD (random amplified polymorphic DNA) primers and UPF (Universal PCR Fingerprinting) 2, 3, and 4 were used. The optimum temperature for mycelial growth was 30oC for ‘Heuksol’, but medium-high temperatures were also appropriate, especially 13–20oC. The fruiting body production per bottle (1,100 mL) was approximately 140.8 g. When compared to the control strain ‘Suhan’, the thickness of the stipe of ‘Heuksol’ was greater than that of ‘Suhan’ (13.5 mm vs 9.4 mm). The pileus diameter of ‘Heuksol’ was similar to that of ‘Suhan’ and the pileus thickness of ‘Heuksol’ and ‘Suhan’ was 19.7 mm and 21.8 mm, respectively. ‘Heuksol’ had more a productive stipe number than ‘Suhan’ and the pileus of ‘Heuksol’ was dark gray, even at high temperatures. Therefore, it was suggested that this new cultivar, ‘Heuksol’, could provide an alternative to ‘Suhan’ and contribute to the profit of oyster mushroom farms.

느타리버섯 신품종 ‘흑솔’의 육성 및 특성

오민지, 임지훈, 신평균, 오연이, 장갑열, 공원식*
국립원예특작과학원 버섯과