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Issue: Vol. 212 No. 3: 8 June 2015
Type: Article
Published: 2015-06-08
DOI: 10.11646/phytotaxa.212.3.4
Page range: 221–228
Abstract views: 29
PDF downloaded: 1

Achlya catenulata sp. nov., a new Saprolegniales (Oomycetes, Straminipila) from Brazilian mangrove swamp

Instituto de Botânica, Núcleo de Pesquisa em Micologia, Av. Miguel Stéfano 3687, CEP 04301-912, São Paulo, SP, Brazil
Instituto de Botânica, Núcleo de Pesquisa em Micologia, Av. Miguel Stéfano 3687, CEP 04301-912, São Paulo, SP, Brazil
Instituto de Botânica, Núcleo de Pesquisa em Micologia, Av. Miguel Stéfano 3687, CEP 04301-912, São Paulo, SP, Brazil
Department of Ecology and Evolution, University of Michigan, Ann Arbor, MI 48109, USA
Instituto de Botânica, Núcleo de Pesquisa em Micologia, Av. Miguel Stéfano 3687, CEP 04301-912, São Paulo, SP, Brazil
Instituto de Botânica, Núcleo de Pesquisa em Micologia, Av. Miguel Stéfano 3687, CEP 04301-912, São Paulo, SP, Brazil
Instituto de Botânica, Núcleo de Pesquisa em Micologia, Av. Miguel Stéfano 3687, CEP 04301-912, São Paulo, SP, Brazil
Instituto de Botânica, Núcleo de Pesquisa em Micologia, Av. Miguel Stéfano 3687, CEP 04301-912, São Paulo, SP, Brazil
Instituto de Botânica, Núcleo de Pesquisa em Micologia, Av. Miguel Stéfano 3687, CEP 04301-912, São Paulo, SP, Brazil
catenulate oogonia eccentric oospores ITS and LSU phylogeny Oomycota taxonomy Brazil Fungi

Abstract

Achlya catenulata sp. nov. was collected from water samples in a mangrove swamp of the “Parque Estadual da Ilha do Cardoso”, São Paulo State, Brazil. This new species is characterized by the presence of achlyoid type of zoospore discharge from both primary and secondary sporangia, catenulate smooth-walled oogonia in chains of up to 11 oogonia, diclinous antheridial branches and eccentric oospores, which generally failed to mature. Maximum likelihood phylogenetic analyses based on the ITS and LSU regions (rDNA) placed this species within the Achlya sensu stricto clade.