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

2015; Q15088586; Volume: 212; Issue: 3 Linguagem: Inglês

10.11646/phytotaxa.212.3.4

1179-3163

Ana Lúcia de Jesus, Agostina V. Marano, José Ivanildo de Souza, Timothy Y. James, Gustavo Henrique Jerônimo, Sarah Cristina Oliveira Rocha, Danilo Reis Gonçalves, Marcela Castilho Boro, Carmen Lidia Amorim Pires‐Zottarelli,

Lichen and fungal ecology

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.