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Home • Stephanosporaceae sp. PMI 697 v1.0
Stephanosporaceae sp. PMI 697
Mycelium of Stephanosporaceae sp. PMI 697 growing on Modified Melin-Norkrans (MMN) agar in a petri dish (right). Dikaryotic nuclei are evident when stained with DAPI (left top and bottom). Photo credits: Alejandro Rojas.

In the “1KFG: Deep Sequencing of Ecologically-relevant Dikarya“ project (CSP1974), we aim to sequence additional sampling of genomic diversity within keystone lineages of plant-interacting fungi and saprophytic fungi that are of special ecological importance for understanding terrestrial ecosystems. In addition, comparative genome analysis with saprotrophic, mycorrhizal and pathogenic fungi will provide new insights into the specific and conserved adaptations associated with each fungal lifestyle. Researchers who wish to publish analyses using data from unpublished CSP genomes are respectfully required to contact the PI and JGI to avoid potential conflicts on data use and coordinate other publications with the CSP master paper(s).

Corticioid fungi is a diverse but understudied group of fungi that forms a crust or corticioid fruiting body. Most members are considered saprophytes, while some are also classified as parasites or plant pathogens. Recent classifications suggest that PMI 697 is actually in the Stephanosporaceae family (part of the corticoid fungi) and that it is closely related to Lindtneria. PMI 697 was isolated from the roots of Populus spp. as an endophyte and it exhibits dikaryotic mycelia. Family members related to PMI 697 are mostly from environmental sequencing in the US and Australia as well as fruiting bodies from Ecuador and India. The actual specimens classified within the same group as PMI 697 exhibit small hypogeus sporocarps and a few have been associated with an ectomycorrhizal lifestyle.

This work is supported by the Genomic Science Program (U.S. Department of Energy) Plant Microbe Interfaces (PMI) Scientific Focus Area (http://pmi.ornl.gov) and by the Joint Genome Institute (U.S. Department of Energy) through their Community Sequencing Program (CSP 1974, 1KFG: Deep Sequencing of Ecologically-relevant Dikarya, F. Martin PI).