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Studies on rose mosaic disease in field‐grown roses produced in the United Kingdom
Author(s) -
THOMAS B. J.
Publication year - 1981
Publication title -
annals of applied biology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.677
H-Index - 80
eISSN - 1744-7348
pISSN - 0003-4746
DOI - 10.1111/j.1744-7348.1981.tb00774.x
Subject(s) - biology , chlorosis , mottle , horticulture , spots , plant virus , inoculation , prunus , rosaceae , botany , virology , virus
SUMMARY Arabis mosaic virus (AMV) and prunus necrotic ringspot virus (PNRSV), separately or together, caused in field‐grown roses the range of symptoms recognised as rose mosaic disease. PNRSV infection alone generally induced chlorotic line patterns, ring‐spots or mottles in the leaves at some time during the growing season; AMV plus PNRSV normally caused chlorotic vein‐banding. However, during prolonged periods of high temperatures ( c . 21 °C or more) vein banding occurred in some roses infected only with PNRSV. Isolates of PNRSV from rose had particles which were similar in shape, protein mol. wt, density and sedimentation coefficients to previously described isolates of PNRSV from cherry, plum and rose; all were cherry serotypes. In graft‐inoculated roses, apple serotypes of PNRSV induced stunting and chlorosis, puckering and distortion of leaves, which closely resembled symptoms associated with rose mosaic in the USA and chlorotic mottle rose mosaic in New Zealand. To avoid possible confusion in using the name rose mosaic it is suggested that the virus(es) present in roses should be named.