Distribution of Garlic virus A in different garlic production regions of Argentina

P. LUNELLO; F. BRAVO-ALMONACID; K. KOBAYASHI; M. HELGUERA; S.F. NOME; A. MENTABERRY; V.C. CONCI

Journal of Plant Pathology

Societa Italiana di Patologia Vegetale

Año: 2000 vol. 82 p. 17 - 21

1125-4653

Comparative tests using inmunosorbent electron microscopyplus decoration and ELISA with antibodiesagainst Garlic virus A (GarV-A) and Garlic virus C(GarV-C) coat proteins showed that they specificallyrecognize the respective viruses. On this basis, theGarV-A antiserum was used in DAS-ELISA tests tostudy the distribution of GarV-A in different regions ofArgentina. A total of 2655 samples, representing 115garlic fields were analyzed. GarV-A was detected in64%, 51%, 43% and 35% of samples collected in SanJuan, Mendoza, Córdoba and Buenos Aires Provinces,respectively. Positive samples were not found in plantsfrom Santa Cruz Province. Distribution among differentgarlic cultivars showed that this virus was present in33%, 46%, 53%, 70% and 43% of plants belonging tocvs ?Colorado?, ?Chino?, ?Violeta Francés?, ?Blanco? and?Rosado Paraguayo?, respectively. Negative results wereobtained in samples of cvs ?Castaño-INTA? and ?VioletaSantacruceño?.