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The association of Prototheca spp. with slime flux in Ulmus amencana and other trees

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Abstract

All known species of Prototheca and one new species were isolated from slime flux of woody stems. Fortyfive trees (11 species) harbored Prototheca spp. Monthly quantitative studies of slime flux from 10 trees of Ulmus amencana revealed that 6 harbored a new species, P. ulmea, often in large numbers (1×105 colony forming units ml−1 slime flux). In total, P. ulmea was isolated from 17 elms and one oak from three states in the U.S.A. In spite of this extensive association, no causal relationship has been established.

Prototheca ulmea is a small, oval, capsulated species similar to P. stagnora, but differentiated by its morphology and inability to use fructose and galactose. Utilization of other carbohydrates is restricted and its only known habitat is slime flux.

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  1. Department of Microbiology, West Virginia University, School of Medicine, 26506, Morgantown, WV, USA

    R. S. Pore

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  1. R. S. Pore
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Pore, R.S. The association of Prototheca spp. with slime flux in Ulmus amencana and other trees. Mycopathologia 94, 67–73 (1986). https://doi.org/10.1007/BF00437369

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  • DOI: https://doi.org/10.1007/BF00437369

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