这个词是什么意思？
A genus of plant viruses in the family SEQUIVIRIDAE. Transmission is by leafhoppers or APHIDS and depends on a self-encoded helper protein. The type species is Rice tungro spherical virus.
中文名称索引；定义为 MeSH 英文原文，尚未逐条译审。MESH:D019193 · MeSH 2026。
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