Skip to Main Content
U.S. Forest Service
Caring for the land and serving people

United States Department of Agriculture

Home > Search > Publication Information

  1. Share via EmailShare on FacebookShare on LinkedInShare on Twitter
    Dislike this pubLike this pub
    Author(s): You Li; Craig Christopher Bateman; James Skelton; Michelle Alice Jusino; Zachary John Nolen; David Rabern Simmons; Jiri Hulcr
    Date: 2017
    Source: Fungal Biology
    Publication Series: Scientific Journal (JRNL)
    Station: Northern Research Station
    PDF: Download Publication  (1.0 MB)


    The ambrosia fungus Flavodon ambrosius is the primary nutritional mutualist of ambrosia beetles Ambrosiodmus and Ambrosiophilus in North America. F. ambrosius is the only known ambrosial basidiomycete, unique in its efficient lignocellulose degradation. F. ambrosius is associated with both native American beetle species and species introduced fromAsia. It remains unknown whether F. ambrosius is strictly a North American fungus, or whether it is also associated with these ambrosia beetle genera on other continents. We isolated fungi from the mycangia and galleries of ambrosia beetles Ambrosiodmus rubricollis, Ambrosiodmus minor, Ambrosiophilus atratus, and Ambrosiophilus subnepotulus in China, South Korea, and Vietnam. Phylogenetic analyses suggest that all Asian and North American isolates represent a single haplotype. These results confirm Flavodon ambrosius as the exclusive mutualistic fungus of multiple Ambrosiodmus and Ambrosiophilus beetle species around the world, making it the most widespread known ambrosia fungus species, both geographically and in terms of the number of beetle species. The Flavodon-beetle symbiosis appears to employ an unusually strict mechanism for maintaining fidelity, compared to the symbioses of the related Xyleborini beetles, which mostly vector more dynamic fungal communities.

    Publication Notes

    • Check the Northern Research Station web site to request a printed copy of this publication.
    • Our on-line publications are scanned and captured using Adobe Acrobat.
    • During the capture process some typographical errors may occur.
    • Please contact Sharon Hobrla, if you notice any errors which make this publication unusable.
    • We recommend that you also print this page and attach it to the printout of the article, to retain the full citation information.
    • This article was written and prepared by U.S. Government employees on official time, and is therefore in the public domain.


    Li, You; Bateman, Craig Christopher; Skelton, James; Jusino, Michelle Alice; Nolen, Zachary John; Simmons, David Rabern; Hulcr, Jiri. 2017. Wood decay fungus Flavodon ambrosius (Basidiomycota: Polyporales) is widely farmed by two genera of ambrosia beetles. Fungal Biology. 121(11): 984-989.


    Google Scholar


    Ambrosia beetle, Ambrosiodmus, Ambrosiophilus, Nuclear 28S rDNA, Nuclear ITS rDNA, White rot

    Related Search

    XML: View XML
Show More
Show Fewer
Jump to Top of Page