Data/hora: 18/06/2024 13:27:25

Biblioteca(s): | Embrapa Florestas.
Data corrente: | 31/03/2011
Data da última atualização: | 23/02/2015
Autoria: | SANTOS, A. F. dos; TESSMANN, D. J.; ALVES, T. C. A.; VIDA, J. B.; HARAKAWA, R.
Afiliação: | ALVARO FIGUEREDO DOS SANTOS, CNPF; DAURI JOSÉ TESSMANN, Universidade Estadual de Maringá; TATIANE CRISTINA ALBUQUERQUE ALVES, Universidade Estadual de Maringá; JOÃO BATISTA VIDA, Universidade Estadual de Maringá; RICARDO HARAKAWA, Instituto Biológico.
Título: | Root and crown rot of brazilian pine (Araucaria angustifolia) caused by Phytophthora cinnamomi.
Ano de publicação: | 2011
Fonte/Imprenta: | Journal of Phytopathology, v. 159, n. 3, p. 194-196, 2011.
Idioma: | Inglês
Conteúdo: | In an area reforested with Brazilian pine (Araucaria angustifolia) located in Parana´ State, southern Brazil, 20- to 40-year-old trees representing 0.2% of the surveyed area had symptoms of root and crown rot, yellowing and browning of leaves from the uppermost branches and death. Three Phytophthora isolates obtained from diseased plant tissue were tested against 1-year-old Brazilian pine seedlings and found to display positive pathogenicity. Based on their morphological and physiological characteristics, the isolates were identified as Phytophthora cinnamomi. A GenBank BLAST search of partial sequences from the b-tubulin and elongation factor-1a genes, as well as the ITS regions and 5.8S gene of rDNA, confirmed the species identification. This is the first report of the involvement of this pathogen on the aetiology of Brazilian pine root and crown rot.
Palavras-Chave: | Patologia florestal.
Thesagro: | Fungo.
Categoria do assunto: | --
Registro original: | Embrapa Florestas (CNPF)
Exemplares: | CNPF - (48200-1) - UPC - AP - DD -  -  -  - DIS