Characterization of Mesocriconema species associated with grapevine decline disease in southern Brazil

• Published in: Tropical plant pathology Vol. 48; no. 2; pp. 163 - 173
• Main Authors: da Silva, Wellington Rodrigues, Divers, Margareth, Correia, Giliard Sapper, de Oliveira Martins, Sabrina, Schafer, Jaqueline Tavares, de Araujo Filho, Jeronimo Vieira, de Barros, Danielle Ribeiro, Gomes, Cesar Bauer
• Format: Journal Article
• Language: English
• Published: Cham Springer International Publishing 01.04.2023; Springer Nature B.V
• Subjects: Biomedical and Life Sciences; Decline; Geographical distribution; Grapevines; Hypotheses; Life Sciences; Mesocriconema; Original Article; Plant Pathology; Population decline; Species; Vineyards; Brazil; DNA barcode; sp; Ring nematode; Integrative taxonomy
• ISSN: 1983-2052; 1982-5676; 1983-2052
• DOI: 10.1007/s40858-022-00550-9

The grapevine decline disease (GDD) is a complex disease that causes substantial losses in grape production. Ring nematode ( Mesocriconema xenoplax ) is frequently detected in symptomatic vineyards. Unfortunately, this nematode is frequently mis-identified due to its similarities with other species of this genus. In this study, the hypothesis was tested that there is a species complex of Mesocriconema associated with GDD in southern Brazil. This hypothesis was based on a previous result that identified different Mesocriconema species in vineyards in southern Brazil including M. xenoplax , M. curvatum , M. rusticum , M. sphaerocephalum , M. ornatum , and another seven undefined species, using only morphometric data. This current study provides the first characterization of Mesocriconema species associated with GDD, their distribution, and variability, through the use of morphological and molecular analysis in an integrative approach.