The richness and diversity of Blastocladiomycota and Chytridiomycota were analyzed from 120 samples collected in the Parque Estadual da Ilha do Cardoso (PEIC). From these samples we obtained 256 isolates, 112 from water and 144 from soil, with the identification of thirty-four taxa, all of them are first records for the PEIC. Chytriomyces lucidus Karling is first cited for Brazil and Entophlycis lobata Willoughby & Townley and Phlyctochytrium mucronatum Canter for São Paulo State. The Shannon’s diversity (H’), Simpson’s dominance (D), evenness (E), and Sørensen’s similarity (61,2%) indices showed a diverse mycota with only a few dominant taxa, most of them common to both water and soil samples. Approximately 24% of the identified taxa were purified in culture media and characterized on the basis of morphological and molecular data (18S, ITS, and 28S regions of the rDNA), with the sequences deposited in GenBank.
Atlantic rainforest; chytrids; zoosporic fungi
