The Effect Upon Micrococcus violagabriellae of Short-Term Exposure to Ultraviolet Light
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چکیده
منابع مشابه
The Effect upon Micrococcus Violagabriellae of Short-term Exposure to Ultraviolet Light.
The presence of inorganic or organic iron in the growth medium induces the production of a reddish-violet pigment in Micrococcus violagabrielhe. This pigment protects the organism against short exposures to ultraviolet (u.v.) radiation of wavelength below 300 mp. The presence of iron also increases the degree of recovery of the normally white organism after such irradiation. Anaerobic growth re...
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15 صفحه اولthe effect of lexical and grammatical collocation instruction through input flooding versus awareness raising on short-term and delayed retention as well a active use
this study attempted to explore if teaching english collocations through two different modes of awareness-raising and input flooding has any possible differential effect on immediate retention as well as retention in a delayed assessment. it also compared the possible differential effect of teaching english collocations implicitly and explicitly on actively using the items in writing. m...
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ژورنال
عنوان ژورنال: Journal of General Microbiology
سال: 1965
ISSN: 0022-1287
DOI: 10.1099/00221287-38-3-343