这个词是什么意思？
A phylum of gram-negative bacteria closely related to the BACTEROIDETES. Species have been found in the gastrointestinal tracts of animals, especially termites, though indications are that species are more broadly distributed in other environments.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D061306 · MeSH 2026。
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