Morphological and phylogenetic analyses of three Phytopythium species (Peronosporales, Oomycota) from Brazil

Autor(es)

de Jesus, Ana Lucia ^[1] ; Goncalves, Danilo Reis ^[1] ; Oliveira Rocha, Sarah Cristina ^[1] ; Marano, Agostina Virginia ^[1] ; Jeronimo, Gustavo Henrique ^[1] ; De Souza, Jose Ivanildo ^[1] ; Boro, Marcela Castilho ^[1] ; Amorim Pires-Zottarelli, Carmen Lidia ^[1]

Afiliação do(s) autor(es)

^[1] Inst Bot, Nucleo Pesquisa Micol, Ave Miguel Stefano 3687, BR-04301902 Sao Paulo, SP - Brazil

• Tipo de documento: Artigo Científico
• Fonte: CRYPTOGAMIE MYCOLOGIE; v. 37, n. 1, p. 117-128, MAR 2016.
• Citações Web of Science: 4

Resumo

We analyzed the morphology and phylogenetic placement of six isolates of Phytopythium belonging to P. helicoides, P. palingenes and P vexans that were isolated from water bodies and substrates used for hydroponically gown crops. The molecular data are from the partial large subunit and the complete internal transcribed regions of the ribosomal DNA. These three species are characterized by the presence of ovoid to globose zoosporangia with papillae, internal proliferation as in Phytophthora and mode of zoospore discharge as in Pythium. All isolates showed high morphological and phylogenetic similarity with members of the Clades II and III of Phytopythium. In this paper, Phytopythium palingenes is included for the first time in phylogenetic analyses and our ITS and LSU phylogenies indicated that Aquaperonospora taiwanensis is a synonym of Phytopythium helicoides. (AU)

• Processo FAPESP: 12/50222-7 - Diversidade de blastocladiomycota,chytridiomycota,hyphochytriomycota e oomycota do parque estadual da ilha do cardoso (peic),cananeia, sao paulo,brasil.
• Beneficiário: Carmen Lidia Amorim Pires-Zottarelli
• Modalidade de apoio: Auxílio à Pesquisa - Regular
• Processo FAPESP: 14/03499-9 - Levantamento de espécies de Pythium sensu lato de água de abastecimento de cultivos hidropônicos da região metropolitana de São Paulo
• Beneficiário: Danilo Reis Gonçalves
• Modalidade de apoio: Bolsas no Brasil - Mestrado
• Processo FAPESP: 13/01409-0 - Diversidade de Oomycota em área de manguezal do Parque Estadual da Ilha do Cardoso (PEIC), Cananéia, Estado de São Paulo, Brasil
• Beneficiário: Ana Lucia de Jesus
• Modalidade de apoio: Bolsas no Brasil - Mestrado