ISHS Acta Horticulturae 109: III International Symposium on Flower Bulbs
HYACINTH MOSAIC VIRUS: SYMPTOMS IN HYACINTHS, SEROLOGICAL DETECTION, AND RELATIONSHIPS WITH OTHER POTYVIRUSES |
| Authors: | A.F.L.M. Derks, Jenny L. Vink-van den Abeele |
| Abstract:
Hyacinths infected with hyacinth mosaic virus (HMV) show mottling on the leaves, especially on the basal parts. Some cultivars have additional symptoms, such as breaking of the flower colour or spots on the flower stalk. The presence of spots on the flower stalk is a good criterion for the detection of diseased plants in the tolerant cultivars King of the Blues and Queen of the Pinks. In the serological testing of hyacinths for HMV the most reliable results in leaves were obtained during the period from the start of flowering until about a month after flowering. Electron-microscopical examination of bulb preparations showed virus particles in the scales but not in the sprouts. When HMV was tested against antisera of several potyviruses, a close serological relationship was found only with Ornithogalum mosaic virus. Viruses of Ornithogalum, Muscari, Galtonia, and Lachenalia reacted with HMV antiserum in the microprecipitin test. | |
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