Rhizoglomus, a new genus of the Glomeraceae

作者：Ewald Sieverding, Gladstone Alves da Silva, Reinhard Berndt, Fritz Oehl · 发表于：Mycotaxon · 年份：2015 · DOI：10.5248/129.373 · 被引用次数：135 · 研究领域：Mycorrhizal Fungi and Plant Interactions、Lichen and fungal ecology、Plant Pathogens and Fungal Diseases

Rhizoglomus gen. nov. (Glomeraceae, Glomeromycetes) is proposed, typified by Glomus intraradices [≡ Rhizoglomus intraradices]. The genus encompasses species of arbuscular mycorrhizal fungi that frequently form abundant spores in soil and roots and is morphologically characterized by spores with cylindrical subtending hyphae (usually with an open pore at the base) and at least two or three (rarely up to five) distinct wall layers. Phylogenetically, the genus forms a separate clade in the Glomeraceae. In addition to R. intraradices, the genus includes R. aggregatum, R. antarcticum, R. arabicum, R. clarum, R. custos, R. fasciculatum, R. invermaium, R. irregulare, R. manihotis, R. microaggregatum, R. natalense, and R. proliferum. Some of these species were previously assigned to Rhizophagus (type: R. populinus), a pathogenic genus that does not belong in the Glomeromycota.