Título:	Verticillium diseases of vegetable crops in Brazil: Host range, microsclerotia production, molecular haplotype network, and pathogen species determination.
Autoria:	SUASTE-DZUL, A. P. VELOSO, J. S. COSTA, H. BOITEUX, L. S. LOURENÇO JUNIOR, V. LOPES, C. A. REIS, A.
Afiliação:	ALBA P. SUASTE-DZUL, UNIVERSIDADE FEDERAL RURAL DE PERNAMBUCO; JOSIENE S. VELOSO, UNIVERSIDADE FEDERAL RURAL DE PERNAMBUCO; HÉLCIO COSTA, INSTITUTO CAPIXABA DE PESQUISA, ASSISTÊNCIA tÉCNICA E EXTENSÃO RURAL; LEONARDO SILVA BOITEUX, CNPH; VALDIR LOURENCO JUNIOR, CNPH; CARLOS ALBERTO LOPES, CNPH; AILTON REIS, CNPH.
Ano de publicação:	2022
Referência:	Plant Pathology, v. 71, n. 6, p. 1417-1430, 2022.
Conteúdo:	Recent outbreaks of Verticillium wilt diseases in various vegetable crops have been reported in Brazil. This fact was our initial stimulus to carry out a nationwide survey aiming to determine their causal agent(s). Thus far, Verticillium dahliae has been reported as the predominant species based solely on morphological traits. As other Verticillium species can be associated with wilt diseases, we characterized a collection of 80 isolates, collected across 10 agricultural Brazilian regions, by combining morphological, biological, and molecular traits. A multilocus approach was employed for identification of Verticillium species with information from three genomic regions (ribosomal internal transcribed spacer region, glyceraldehyde-3-phosphate dehydrogenase, and actin genes). Only 21 out of the 80 isolates were unable to produce microsclerotia in culture. The analyses of all genomic regions indicated V. dahliae as the sole species associated with vascular wilt of distinct hosts, including major solanaceous vegetables and other hosts such as trawberry, okra, and cacao. Pathogenicity tests confirmed the infection by the V. dahliae isolates and the development of typical disease symptoms on their original hosts. This is the first nationwide characterization of Verticillium isolates associated with major vegetable crops in Neotropical areas. This provides valuable information to design sound management strategies for these diseases, mainly for establishing efficient rotation systems and for the development of resistant cultivars.
Thesagro:	Hortaliça Doença de Planta
NAL Thesaurus:	Verticillium wilt Vegetables
ISSN:	1365-3059
Digital Object Identifier:	10.1111/ppa.13562
Tipo do material:	Artigo de periódico
Acesso:	openAccess
Aparece nas coleções:	Artigo em periódico indexado (CNPH)