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KMID : 0379119830110040186
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Korean Journal of Mycology
1983 Volume.11 No. 4 p.186 ~ p.186
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Effect of Temperature , pH , Carbon and Nitrogen Nutritions on Mycelial Growth of Pleurotus sajor - caju (Fr.) Sing . and Pleurotus ostreatus (Fr.) Quel
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박용환/Park, Yong Hwan
차동열/고승주/유창현/Cha, Dong Yeul/Go, Seung Joo/Rue, Chang Hyun
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Abstract
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The experiment was carried out to investigate some factors affecting mycelial growth of Pleurotus sajorcaju and P. ostreatus. The optimal temperature for mycelial growth of both the species were from 25 to 30℃ whereas the formation of primordia of the sporophores was 20 to 25℃ in P. sajor-caju and 15℃ in P. ostreatus respectively on potato sucrose yeast agar medium. The optimal pH of the medium for the mycelial growth of both the species were ranged 5 to 6. The effect of carbon and nitrogen sources on mycelial growth of the species were studied using modified Waksman´s special medium as the basal medium with the test substance. Nine carbon and eight nitrogen sources were evaluated by replacing the carbohydrates or nitrogen in the basal medium. Generally, disaccharides and polysaccharides showed good effect for the mycelial growth of P. sajor-caju, but polysaccharides were superior to the other classes of carbon sources for the mycelial growth of P. ostreatus. Generally, organic nitrogen compounds showed good mycelial growth of both the species. The mycelial growth of the species were favored by ammonium more than by nitrate nitrogen source. Asparagine was superior to the other kinds of amino acid. Six percentages of glucose and 0.6% of ammonium tartrate was optimum for mycelial growth of P. sajor-caju whereas the optimum concentration for the P. ostreatus was 4% of glucose and 0.4% ammonium tartrate.
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