Identification and distribution of species of <i>Neofusicoccum</i> that cause blueberry stem blight in Chile

Millas, P.; Barra-Bucarei, Lorena; Castro, Jean Franco; Carrasco-Fernandez, Jorge; Chilian, Javier; TAPIA-RODRIGUEZ, EDUARDO ANDRES; Santelices, Cecilia; Cisterna-Oyarce, Viviana; Munoz-Reyes, Violeta; Ortiz-Campos, Javiera; Parra, Karen; France, Andres


Stem blight is a destructive woody disease of blueberry (Vaccinium corymbosum) caused by several species of the family Botryosphaeriaceae. A field survey was conducted in the mayor blueberry production area of Chile, comprising latitudes 32 degrees 49MODIFIER LETTER PRIMES to 40 degrees 55MODIFIER LETTER PRIMES, to determine the occurrence and distribution of Botryosphaeriaceae in the region. Together, a multilocus analysis, morphological characterization, and phytopathogenicity testing were used to identify 51 Neofusicoccum isolates belonging to N. nonquaesitum (28 strains), N. parvum (22 strains), and N. australe (1 strain). Of these, N. parvum and N. nonquaesitum were the most commonly found, with N. parvum most frequent from latitude 37 degrees 40MODIFIER LETTER PRIMES to the north and N. nonquaesitum predominantly located from the same latitude toward the south. Morphological traits of the isolates were consistent with the species identified by molecular techniques, despite the overlapping of conidial size of some isolates among species. Pathogenicity trials showed that the three species were pathogenic to blueberry plants and revealed that N. parvum and N. nonquaesitum were the most aggressive species, although variability in virulence was observed among isolates of N. parvum and N. nonquaesitum.

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Título según WOS: ID WOS:000963710200001 Not found in local WOS DB
Título según SCOPUS: ID SCOPUS_ID:85152451234 Not found in local SCOPUS DB
Título de la Revista: MYCOLOGIA
Volumen: 115
Fecha de publicación: 2023
Página de inicio: 326
Página final: 339