Mycologia
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DOI: 10.3852/mycologia.99.1.112
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Mycologia, 99(1), 2007, pp. 112-124.
© 2007 by The Mycological Society of America

Dictyostelids living in the soils of the Atlantic Forest, Iguazú region, Misiones, Argentina: description of new species


Eduardo M. Vadell 1

     Departamento de Biodiversidad y Biología Experimental, 4 piso. II Pabellón, Ciudad Universitaria. FCEN, UBA, Buenos Aires, Argentina

James C. Cavender 2

     Department of Environmental and Plant Biology, Ohio University, Athens, Ohio 45701, USA

Thirteen new species and varieties of dictyostelid cellular slime molds (csm) were isolated from soils of the Atlantic Subtropical Rain Forest at the Iguazú Falls, Northeastern Misiones Province, Argentina. Seven new species are described herein, one of them is a Polysphondylium, while the rest of the species belong to the genus Dictyostelium. Also, six taxa are new varieties of Dictyostelium and Acytostelium, which will be reported later. Fourteen Northern Hemisphere (Tikal) species have also been isolated from Iguazú soils, some of them new records for Southern South America. This csm community, when compared with others from forests of the Northern Hemisphere, particularly Tikal, Guatemala, give some insight into a possibly different evolutionary history and/or natural selection in the two areas.

Key words: Dictyostelium, Polysphondylium, Southern Hemisphere, Subtropical Atlantic Forest, Taxonomy

1 E-mail: eduardo.vadell{at}gmail.com

2 E-mail: cavender{at}ohio.edu.us




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Copyright © 2007 by The Mycological Society of America.