Artículo
Impact of yellow leaf virus on sugarcane commercial fields
Asinari, Florencia
; Pérez Gómez, Sergio Gregorio; Easdale, C.; Rago, Alejandro Mario; Balzarini, Monica Graciela
; Cafrune, Eva Encarnacion
Fecha de publicación:
17/11/2020
Editorial:
Sociedade Brasileira de Fitopatologia
Revista:
Tropical Plant Pathology
ISSN:
1982-5676
e-ISSN:
1983-2052
Idioma:
Inglés
Tipo de recurso:
Artículo publicado
Clasificación temática:
Resumen
A survey of Sugarcane yellow leaf virus (SCYLV) was conducted in northern Argentina in 2015 and 2016 using tissue blot immunoassay (TBIA). Results showed plant infection rates of 2.2–86.7% in sugarcane commercial fields from different growing areas. Percentage of infected leaves varied among cultivars and areas. NA 05–860 was the most infected cultivar (86.7% incidence). Virus genotypic diversity of SCYLV positive samples was analysed by reverse transcription polymerase chain reaction (RT-PCR). The virus genotype BRA-PER was found in all samples, followed by genotypes REU and CUB (36% and 8% of positive samples, respectively). The following co-infection patterns were found: BRA-PER + REU (34%); BRA-PER + CUB (6%); and the three genotypes, BRA-PER + REU + CUB (2%). Sugar content loss in cultivar LCP 85–384 infected with SCYLV was evaluated. Sugar yield reduction in SCYLV positive plants was statistically significant in dryland conditions (p < 0.0001). Our results indicate the high prevalence of SCYLV, the first detection of genotypes CUB and REU, and reduction in sucrose content related to SCYLV in Argentina. Disease management in the crop region should include the use of healthy planting material and SCYLV-tolerant cultivars.
Palabras clave:
BRA-PER
,
CUB AND REU GENOTYPES
,
PREVALENCE
,
SCYLV
,
SUGAR CONTENT LOSSES
,
TBIA
Archivos asociados
Licencia
Identificadores
Colecciones
Articulos (UFYMA)
Articulos de UNIDAD DE FITOPATOLOGIA Y MODELIZACION AGRICOLA
Articulos de UNIDAD DE FITOPATOLOGIA Y MODELIZACION AGRICOLA
Citación
Asinari, Florencia; Pérez Gómez, Sergio Gregorio; Easdale, C.; Rago, Alejandro Mario; Balzarini, Monica Graciela; et al.; Impact of yellow leaf virus on sugarcane commercial fields; Sociedade Brasileira de Fitopatologia; Tropical Plant Pathology; 46; 1; 17-11-2020; 37-43
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