エノキタケ〔Collybia velutipes(Curt.)Fr.〕の人工栽培における雑菌問題混入雑菌の諸性質

概要

論文の詳細を見る
1. Twelve bacteria, 3 Penicillium and 5 other fungi were collected from culture media of C. velutipes infected with various micro-organisms. 2. Results of competition of isolated micro-organisms to C. velutipes were 4 A- type, 3 B-type, 1 C-type, 8 D-type, 3 E-type and 1 F-type. 3. On the isolated micro-organisms morphological and physiological properties were investigated. Bacteria of isolated micro-organisms corresponded to bacteria collected during the winter on physiological properties of no reaction to methyl red, reduction of methylene blue, acidification by decomposition of sugar and tolerance to penicillin. 4. Two of micro-organisms treated with dry heat were tolerant and others susceptible. 5. Sterilization experiments by hot water treatment indicated that one bacteria was tolerant and others were most susceptible. 6. One bacteria, 3 Penicillium and other fungi were tolerant to ultra-violet treatment.