Chrysoporthe brasiliensis sp. nov. pathogenic to Melastomataceae in southeast Brazil.

Autor: Silva GA; Department of Plant Pathology, Universidade Federal de Lavras, 3037, Lavras, Minas Gerais, Brazil., Oliveira MES; Department of Plant Pathology, Universidade Federal do Tocantins, 66, Gurupi, Tocantins, Brazil., Rêgo GMS; Department of Plant Pathology, Universidade Federal de Lavras, 3037, Lavras, Minas Gerais, Brazil., Wingfield BD; Department of Biochemistry, Genetics and Microbiology, Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, 0028, Pretoria, South Africa., Wingfield MJ; Department of Biochemistry, Genetics and Microbiology, Forestry and Agricultural Biotechnology Institute (FABI), University of Pretoria, 0028, Pretoria, South Africa., Ferreira MA; Department of Plant Pathology, Universidade Federal de Lavras, 3037, Lavras, Minas Gerais, Brazil. Electronic address: mariaferreira@ufla.br.
Jazyk: angličtina
Zdroj: Fungal biology [Fungal Biol] 2024 May; Vol. 128 (3), pp. 1790-1799. Date of Electronic Publication: 2024 Apr 08.
DOI: 10.1016/j.funbio.2024.04.001
Abstrakt: Species in the Melastomataceae (Myrtales) include trees and woody shrubs that are amongst the most common hosts of Chrysoporthe and related fungi. These fungi cause stem cankers, branch death and in extreme cases, kill their hosts. Chrysoporthe-like fungi were observed on Miconia spp. and Rhynchanthera grandiflora (Melastomataceae) plants during tree disease surveys in south-eastern Brazil including the states of Minas Gerais and Rio de Janeiro. The aims of this study were to isolate and identify the fungi utilising morphological characteristics and phylogenetic analyses. This led to the identification of a new species of Chrysoporthe described here as Chrysoporthe brasilensis sp.nov. Inoculations were conducted on R. grandiflora and M. theaezans, showing that C. brasiliensis is an aggressive pathogen. This study adds to a growing number of reports of new and pathogenic species of Chrysoporthe that potentially threaten native Myrtales globally, including important trees such as Eucalyptus, both in natural ecosystems and in planted forests.
Competing Interests: Declaration of competing interest The authors declare no conflicts of interest.
(Copyright © 2024 British Mycological Society. Published by Elsevier Ltd. All rights reserved.)
Databáze: MEDLINE
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