First report of Turnip mosaic virus in horseradish in Brazil

Abstract

FIG. 2 – A. Electron micrographs of flexuous filamentous particles, about 720 nm long, strongly decorated with specific antiserum against Turnip mosaic virus (TuMV), note a dense halo surrounding particles; B. Dense laminar aggregates, scrolls and pin-wheel are observed in ultra-thin section of an infected horseradish mesophyll cell. Bars = 200 nm A B RESUMO Primeiro relato do Turnip mosaic virus em raiz-forte no Brasil Este trabalho relata a primeira ocorrencia do Turnip mosaic virus (TuMV) em plantas de raiz-forte (Armoracia rusticana G. Gaertn., B. Mey. & Scherb.) provenientes de cultivos comerciais no Estado de Sao Paulo. Ate entao, este virus somente havia sido descrito em especies do genero Brassica no Brasil.