前言： 目的：通过对产黄青霉菌的诱变选育，最后达到提高青霉素生产水平。
Object:Throngh mutagenesis and selection of producing xanthocillin, at last we improve the producing level of penicillin.
结合青霉素发酵过程，考察了产黄青霉形态与剪切环境的关系；
The morphological change of Penicillium chysogenum during the penicillin fermentation cycle was studied.
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