THE ULTRAVIOLET-INDUCED VARIATIONS IN ASPERGILLUS TERREUS, THEIR MORPHOLOGICAL CHANGES, AND THEIR PRODUCTION OF ITACONIC ACID FROM MOLASSES
The method used for the production of variations in Aspergillus terreus, NRRL, 1960 by ultraviolet radiation is described. With the energy of the short wave 2537 A ultraviolet radiation for a period of one hour to two hours exposure over 95% of the spores from the parent strain are found killed or depressed and only less than 5% in the average survived within 3 to 5 days. Nearly all the spores survived after the irradiation was changed. Seventeen morphologically different types of variants were isolated, incubated, subcultured, and microscopically studied. The probability of how these variants are induced by the energy produced by the short wave ultraviolet radiation is discussed. In general, the ultraviolet-induced variants produce biochemically more itaconic acid from molasses than the unirradiated parent strain. (auth)
- Research Organization:
- Taiwan Provincial Cheng Kung Univ., Tainan, China
- NSA Number:
- NSA-17-014009
- OSTI ID:
- 4734796
- Journal Information:
- Botan. Bull. Acad. Sinica, Vol. Vol: 3; Other Information: Orig. Receipt Date: 31-DEC-63
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
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