光照抑制链格孢菌中交链孢酚和交链孢酚单甲醚的产生。
Light inhibits the production of alternariol and alternariol monomethyl ether in Alternaria alternata.
作者信息
Söderhäll K, Svensson E, Unestam T
出版信息
Appl Environ Microbiol. 1978 Nov;36(5):655-7. doi: 10.1128/aem.36.5.655-657.1978.
Abstract
Alternaria alternata (Fr.) Keissler, grown in drop culture, produced alternariol and alternariol monomethyl ether in late growth phase. Production was almost completely inhibited when the fungal cultures were exposed to white light (180 W/m2), although mycelial dry weight was not significantly affected. The fungus was most sensitive to light during the exponential growth phase. Twelve hours of light exposure was sufficient to decrease significantly the production of the secondary metabolites. In light the fungus produced a red-brown pigment of unknown nature.
摘要
链格孢（Alternaria alternata (Fr.) Keissler）在液滴培养中生长时，在生长后期产生链格孢酚和链格孢酚单甲醚。当真菌培养物暴露于白光（180 W/m²）时，产量几乎完全受到抑制，尽管菌丝体干重没有受到显著影响。该真菌在指数生长期对光最为敏感。12小时的光照就足以显著降低次生代谢产物的产量。在光照下，该真菌产生一种性质未知的红棕色色素。
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