| Autor: |
McAulay, A. L., Plomley, N. J. B., Ford, J. M. |
| Zdroj: |
Australian Journal of Experimental Biology & Medical Science; Mar1945, Vol. 23 Issue 1, p53-57, 5p, 2 Black and White Photographs, 1 Chart |
| Abstrakt: |
Further results are reported of effects produced by monochromatic ultraviolet irradiation of Chaetomium spores. A refined technique is used enabling the effect of the irradiation on individual spores to be studied. Saltations involving modifications of growth rate and form, mycelium and perithecia are produced, as well as a growth modification, the K-type. Mycelium from the irradiated spore frequently shows instability, having the capacity for development into more than one type of colony. This property is particularly marked in the K type. For equal lethal effects of the irradiation, production of K-type amounts to 31-3 p.c. at 265 mμ, but less than 5 p.c. at 313 mμ and 334 mμ, while production of saltants is independent of wavelength. , A selective effect with wavelength has been established for ultra-violet irradiation of biological material.' [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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