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New species of dictyostelids from Patagonia and Tierra del Fuego, Argentina
Laboratorio de Controles Microbiológicos, Facultad de Farmacia y Bioquímica, Universidad de Buenos Aires.
Department of Environmental and Plant Biology, Ohio University.
Uppsala University, Disciplinary Domain of Science and Technology, Biology, Department of Organismal Biology, Systematic Biology.
Department of Biological Sciences, University of Arkansas.
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2011 (English)In: Mycologia, ISSN 0027-5514, E-ISSN 1557-2536, Vol. 103, no 1, 101-117 p.Article in journal (Refereed) Published
Abstract [en]

In late Jan and early Feb 2005 samples for isolation of dictyostelid cellular slime molds (dictyostelids) were collected in five different provinces and from six national parks (all located 39-55°S) in Patagonia and Tierra del Fuego, Argentina. Southern beech (Nothofagus) forests represented the primary vegetation type investigated, but some samples were obtained from Patagonian steppe, alpine meadows, Valdivian temperate rainforests and coniferous forests dominated by Araucaria, Austrocedrus and Fitzroya. Among the dictyostelids isolated from the samples we collected were seven species new to science. These species (Dictyostelium austroandinum, D. chordatum, D. fasciculoideum, D. gargantuum, D. leptosomopsis, D. valdivianum and Polysphondylium patagonicum) are described herein on the basis of both morphology and molecular (SSU rDNA) data. One of the new species, D. gargantuum, is one of the largest representatives of the group reported to date. Another unusual species, D. chordatum, produces long interwoven sorocarps that do not appear to respond to a spacing gas similar to the condition first noted in D. implicatum.

Place, publisher, year, edition, pages
2011. Vol. 103, no 1, 101-117 p.
Keyword [en]
Dictyostelium, forest soils, molecular data, Polysphondylium, South America, taxonomy
National Category
Biological Systematics
Research subject
Biology with specialization in Systematics
URN: urn:nbn:se:uu:diva-142007DOI: 10.3852/09-301ISI: 000286574400010PubMedID: 20943559OAI: oai:DiVA.org:uu-142007DiVA: diva2:386744
EU, FP7, Seventh Framework Programme, 236501
Available from: 2011-01-13 Created: 2011-01-13 Last updated: 2011-05-20Bibliographically approved

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