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Protostelium arachisporum L. S. Olive
Life   Amoebozoa   Eumycetozoa   Protosteliaceae   Protostelium


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IDnature guide

Overview
Grows and sporulates well on LY or wMY agar (0.02 g malt extract, 0.02 g yeast extract, 0.75 g K2HPO4, and 15 g agar/L distilled water), with Flavobacterium sp. as food. Spores produced singly at tips of stalks; Non-pigmented. Stalks slender, 19.5-62.5 µm long, base broadened or inverted cup-shaped, 2.7-4.5 µm in diam., tapering to 0.6-1.4 µm at apex. Spores elongate, typically somewhat irregular and peanut shaped, 8.8-9.3 x 20-46 µm, sometimes adhering in groups of 2-4. Amoebae with filose subpseudopodia and single distinct nucleus and contractile vacuole, fan-shaped and with scalloped, hyaline anterior border when migrating across agar surface. Microcysts spherical, thin-walled, 10-2.8 µm diam.

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Acknowledgements
The Eumycetozoan Project -- working to understand the ecology, sytematics and evolution of myxomycetes, dictostelids and protostelids -- the true slime molds.

Sponsored by grants from the National Science Foundation.


Feedback
Please send any corrections and comments about this page to John Shadwick
Department of Biological Sciences, University of Arkansas, Fayetteville, AR 72701, USA
email: jshadwi@uark.edu
phone: USA-479-575-7393.


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Updated: 2024-04-19 17:42:43 gmt
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