这个词是什么意思？
A class of endosymbiont EUKARYOTES, in the group PARABASALIDEA, that are obligate mutualists in the digestive tracts of wood-eating insects. Hypermastigotes produce CELLULASE that breaks down the cellulose in wood so that insects can metabolize it.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D056952 · MeSH 2026。
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