Abstract
All pith samples from 68 dead saguaro cacti in 3 plots and 11 isolated dead plants in Saguaro National Monument, Arizona, produced at least one species of myxomycete upon incubation at 20 or 30°C. Three species,Badhamia gracilis (Macbr.) Macbr.,Physarum straminipes Lister, andDidymium eremophilum M. Blackwell et Gilbertson, developed at high frequencies on the substrates in moist chamber culture.Perichaena corticalis (Batsch) Rost, andProtophysarum phloiogenum M. Blackwell et Alexopoulos were also present. Although previous literature reports [9] indicated that Myxomycetes grow best at low pH, these species all tolerated substrates of pH 8.7–10.4.Didymium eremophilum andP. phloiogenum had peaks in sporulation within 6 days; other species were slower. There was no difference in time of sporulation ofB. gracilis orD. eremophilum at 20 and 30°C; however, sporulation ofP. straminipes was significantly later at 30°C. Reduced spore germination and slower buildup of critically sized amoebal populations ofP. straminipes at 30°C may be a factor.
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References
Alexopoulos CJ (1964) The rapid sporulation of some Myxomycetes in moist chamber culture. Southwestern Naturalist 9:155–159
Blackwell M (1984) Myxoymycetes and their arthropod associates. In: Wheeler Q, Blackwell M (eds) Fungus-insect relationships: perspectives in ecology and evolution. Columbia University, New York, pp 67–90
Blackwell M, Gilbertson RL (1980a) Sonoran Desert Myxomycetes. Mycotaxon 11:139–149
Blackwell M, Gilbertson RL (1980b)Didymium eremophilum: a new myxomycete from the Sonoran Desert. Mycologia 72:791–797
Braun KL, Keller HW (1976) Myxomycetes of Mexico. I. Mycotaxon 3:297–317
Evenson AE (1961) A preliminary report of the Myxomycetes of southern Arizona. Mycologia 53:137–144
Faurel L, Feldmann J, Schotter G (1965) Catalogue des Myxomycétes de l'Afrique du Nord. Bull Soc Hist Nat de l'Afrique du Nord 55:7–39
Gilbert HC, Martin GW (1933) Myxomycetes found on the bark of living trees. Univ Iowa Stud Nat Hist 15:3–8
Gray WD, Alexopoulos CJ (1968) Biology of the Myxomycetes. Ronald Press, New York
Keller HW, Brooks TE (1977) Corticolous Myxomycetes VII: contribution toward a monograph ofLicea, five new species. Mycologia 69:667–684
Martin GW, Alexopoulos CJ (1969) The Myxomycetes. University of Iowa Press, Iowa City
Martin GW, Alexopoulos CJ, Farr ML (1983) Genera of Myxomycetes. University of Iowa Press, Iowa City
Ramon E (1968) Myxomycetes of Israel. Isr J Bot 17:207–211
Ranzoni FV (1968) Fungi isolated in culture from soils of the Sonoran Desert. Mycologia 60:356–371
Raper KB, Alexopoulos CJ (1973) A myxomycete with a singular myxamoebal encystment stage. Mycologia 65:1284–1295
Shreve F, Wiggins IL (1964) Vegetation and flora of the Sonoran Desert. Stanford University Press, Stanford, California
Steel RGD, Torrie JH (1980) Principles and procedures of statistics: a biometrical approach. 2nd ed. McGraw-Hill, New York
Whitney KD, Keller HW (1980) A new species ofEchinostelium. Mycologia 72:640–643
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Blackwell, M., Gilbertson, R.L. Distribution and sporulation phenology of myxomycetes in the Sonoran Desert of Arizona. Microb Ecol 10, 369–377 (1984). https://doi.org/10.1007/BF02015561
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DOI: https://doi.org/10.1007/BF02015561