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KMID : 0903519680100010101
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Journal of the Korean Society of Agricultural Chemistry and Biotechnology
1968 Volume.10 No. 1 p.101 ~ p.105
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Effect of Concentration of Carbon and Nitrogen Sources on the Sporulation and the Life Cycles of Zygosaccharomyces
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Abstract
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The effect of concentration of carbon and nitrogen sources on the sporulation and the life cycles of three strains of Zygosaccharomyces was investigated.
The results are as follows:
1) The good sporulation of Zygosaccharomyces bisporus, delbruekii, and Z. steineri was obtained on solid medium containing 0 to 0.001% of nitrogen and 10 to 20% of glucose.
The high content of nitrogen was detrimental to sporulation and asci were formed under 0.01% of nitrogen.
2) It is widely accepted that the life cycle of Zygosaccharomyces proceeds in the following way: Ascospore...Vegetative cells...Conjugation of vegetative cells...Sporulation...Ascopores
But zygotes of Z. bisporus proceeded to vegetative cells when transfered to the suitable medium for vegetative reproduction, and then formed asci.
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