Data/hora: 09/06/2024 01:16:19

Biblioteca(s): | Embrapa Florestas.
Data corrente: | 28/11/2023
Data da última atualização: | 15/02/2024
Autoria: | BRUMAT, A. C. L.; AUER, C. G.; TESSMANN, D. J.; DUARTE, H. da S. S.; SANTOS, A. F. dos.
Afiliação: | ANA CAROLINA LYRA BRUMAT, FEDERAL UNIVERSITY OF PARANÁ; CELSO GARCIA AUER, CNPF; DAURI JOSÉ TESSMANN, STATE UNIVERSITY OF MARINGÁ; HENRIQUE DA SILVA SILVEIRA DUARTE, FEDERAL UNIVERSITY OF PARANÁ; ÁLVARO FIGUEREDO DOS SANTOS, FEDERAL UNIVERSITY OF PARANÁ.
Título: | First report of Phytophthora macrochlamydospora associated with tree decline in Pinus taeda in Brazil.
Ano de publicação: | 2023
Fonte/Imprenta: | Forest Pathology, v. 53, n. 6, e12840, 2023.
DOI: | https://doi.org/10.1111/efp.12840
Idioma: | Português
Conteúdo: | AbstractIn 2019, 18-year-old Pinus taeda trees with symptoms of chlorosis in the aerial part, shortening of needles and reduced plant growth, ultimately leading to tree decline, were found in plantations in southern Brazil. When collecting roots, a reduction in the volume of fine roots in trees and absence of ectomycorrhiza was observed. An oomy-cete was isolated from the roots and soil of the rhizosphere, and its pathogenicity was confirmed through Koch's postulates. The morphological characteristics of this oomy-cete were similar to the Phytophthora macrochlamydospora, which was confirmed by the molecular characterization from three gene regions (ITS-rDNA, COX I and TEF1α). This is the first report of P. macrochlamydospora associated with tree decline in P. taeda in Brazil and worldwide.
Palavras-Chave: | Identification; Morphology; Phytophthora macrochlamydospora.
Thesagro: | Doença de Planta; Pinus Taeda.
Thesaurus Nal: | Oomycetes; Phylogeny.
Categoria do assunto: | K Ciência Florestal e Produtos de Origem Vegetal
Registro original: | Embrapa Florestas (CNPF)
Exemplares: | CNPF - (58734-1) - UPC - AP - DD -  -  -  - DIS