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A genus of ascomycetous fungi, family Sordariaceae, order SORDARIALES, comprising bread molds. They are capable of converting tryptophan to nicotinic acid and are used extensively in genetic and enzyme research. (Dorland, 27th ed)
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D009491 · MeSH 2026。
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