All the 4 strains of cellulolytic bacteria and mixed rumen microbes can grow in the chemically defined medium with ammonia-nitrogen or peptide or amino acid as the sole nitrogen source.
所选4株菌和混合瘤胃微生物既能在氨氮为唯一氮源的合成培养基中生长，又能在含有肽和氨基酸的合成培养基中生长。
All the 4 strains of cellulolytic bacteria and mixed rumen microbes can grow in the chemically defined medium with ammonia-nitrogen or peptide or amino acid as the sole nitrogen source.
所选4株菌和混合瘤胃微生物既能在氨氮为唯一氮源的合成培养基中生长，又能在含有肽和氨基酸的合成培养基中生长。
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