藻菌類Conidiobolus sp.に関する関究 : <第一報>菌学的諸性質および炭素源窒素源の与える影響

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This paper presents that Conidiobolus sp., a species of Phycomycetes, was isolated by the authors and found to be nearly the same as Conidiobolus adiaeretus by refernce to the "Key to the Known Species of Conidiobolus" by M. C. Srinivasan and others and identified as an affinity of the latter.It was observed that different kinds of saccharide caused considerable differences in the form of hyphae and in the formative ability of conidia. The form of hyphae and the formative ability of conidia were also remarkably affected by the saccaride concentration. An interesting fact was noticed : different glucose concentrations bring about difference between the propeagation of the so-called "conidia on media" and that of the "ejection conidia". That is to say, on a culture medium with no glucose added, the "ejection conidia" have shown a prolific propagation, while on a culture medium containing glucose at a concentration of 10%, the multiplication of either mycelia or hyphal bodies only was observed. For cultivating this fungal species, the optimum glucose concentration was proved to be 3%. With this level of glucose both "conidia on media" and "ejection conidia" showed a prolific propagation.An organic nitrogen compound to serve as a nitrogen source is essential for the cultivation, and the use of a yeast extract resulted in the most satisfactory growth. Different nitrogen compounds made practically no differences in the form of hypha and the formative ability of conidia.For the cultivation of the fungus in question, glutamic acid was proved to be more effective than any other variety of amino acid, while methionine showed some growth inhibitory action.
社団法人日本生物工学会の論文
1971-04-25

藻菌類Conidiobolus sp.に関する関究 : <第一報>菌学的諸性質および炭素源窒素源の与える影響

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