Species of the Colletotrichum acutatum complex associated with anthracnose diseases of fruit in Brazil. Issue 4 (April 2016)

• Record Type: Journal Article
• Authors: Bragança, Carlos A.D.; Damm, Ulrike; Baroncelli, Riccardo; Massola Júnior, Nelson S.; Crous, Pedro W.
• Is Part Of: Fungal biology. Volume 120:Issue 4(2016:Apr.)
• Page Start: 547
• Page End: 561
• Publication Date: 2016-04
• Subjects: Identification -- Multilocus phylogeny -- Pathogenicity -- Plant pathogenic fungus -- Systematics; Mycology -- Periodicals; Fungi -- Periodicals; 579.505
• DOI: 10.1016/j.funbio.2016.01.011
• Languages: English
• ISSNs: 1878-6146

Abstract

Abstract: Although Colletotrichum acutatum was recently investigated and shown to be a species complex comprising about 30 species, the name is still used in its broad sense for anthracnose pathogens of fruits in Brazil. In this study, a multilocus molecular analysis was carried out based on a dataset of ITS, HIS3, GAPDH, CHS-1, TUB2 and ACT sequences of Colletotrichum strains belonging to the C. acutatum species complex from fruits collected in different regions in Brazil combined with sequences of ex-type and other reference strains of species belonging to this complex. The strains were revealed to belong to Colletotrichum nymphaeae, Colletotrichum melonis, Colletotrichum abscissum and one new species, namely Colletotrichum paranaense, from apple and peach. Morphological descriptions of the new species and a strain closely related to but diverging from C. melonis are provided. From the data presently available, the most common species on apple fruits in Brazil is C. nymphaeae . In a pathogenicity test, strains of all four species caused lesions on detached apple, peach and guava fruits, except for strain CBS 134730 that did not infect guava fruits. Highlights: A new species of the Colletotrichum acutatum complex was reported in this study. Colletotrichum nymphaeae was the most common species associated with apple fruit in Brazil. Different Colletotrichum species are associated with fruits in Brazil.