Heterothallic mating systems in the Echinostelium minutum complex

Six cultures of an Echinostelium sp. slime mold were isolated from cholla cactus detritus collected in Death Valley National Park, California. All six isolates are heterothallic and belong to a single, multiple-allelic mating series with four known mating types. Although the spores, stalks and colum...

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Bibliographic Details
Published in:Mycologia 1998-05, Vol.90 (3), p.382-388
Main Authors: Clark, J.D. (University of Kentucky, Lexington, KY.), Haskins, E.F
Format: Article
Language:English
Subjects:
Alleles
ARIZONA
biological species
CALIFORNIA
CALIFORNIE
COMPATIBILITY
Deserts
Didymium
DISTRIBUCION GEOGRAFICA
DISTRIBUTION GEOGRAPHIQUE
Echinosteliales
Echinostelium minutum
Genetic loci
Genetics/Molecular Biology
GEOGRAPHICAL DISTRIBUTION
HETEROTHALLISM
Mating systems
MYXOMYCETES
MYXOMYCOTA
REPRODUCCION SEXUAL
REPRODUCTION SEXUEE
Reproductive system
SEXUAL REPRODUCTION
slime mold
Species
Sporangia
Spores
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Summary:Six cultures of an Echinostelium sp. slime mold were isolated from cholla cactus detritus collected in Death Valley National Park, California. All six isolates are heterothallic and belong to a single, multiple-allelic mating series with four known mating types. Although the spores, stalks and columella of these isolates resembled a reduced E. minutum, the nearly complete absence of a capillitium prevents a definitive identification. A seventh isolate from cholla collected near Tucson, Arizona and identified as a small desert form of E. minutum, also is heterothallic, but does not cross with the first mating series. This is the first detailed description of a heterothallic mating system in the Echinosteliales.
ISSN:0027-5514
1557-2536
DOI:10.1080/00275514.1998.12026922