A virus in a fungus in a plant:: Three-way symbiosis required for thermal tolerance
A virus in a fungus in a plant:: Three-way symbiosis required for thermal tolerance
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DOI：
10.1126/science.1136237
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发表时间：
2007-01-26
期刊：
影响因子：
56.9
通讯作者：
Roossinck, Marilyn J.
中科院分区：
文献类型：
--
作者：
Marquez, Luis M.;Redman, Regina S.;Roossinck, Marilyn J.
真菌内生菌与热带恐慌草之间的相互关联允许两种生物在高土壤温度下生长。我们从这种真菌中表征了一种与互动相互作用有关的病毒。病毒固化的真菌分离株无法赋予耐热性，但是在重新引入病毒后，耐热耐受性。感染病毒的真菌不仅将热耐受性赋予其天然的单子植物宿主，而且还赋予了Eudicot宿主，这表明基本机制涉及这两组植物之间保守的途径。
A mutualistic association between a fungal endophyte and a tropical panic grass allows both organisms to grow at high soil temperatures. We characterized a virus from this fungus that is involved in the mutualistic interaction. Fungal isolates cured of the virus are unable to confer heat tolerance, but heat tolerance is restored after the virus is reintroduced. The virus-infected fungus confers heat tolerance not only to its native monocot host but also to a eudicot host, which suggests that the underlying mechanism involves pathways conserved between these two groups of plants.