ISHS Acta Horticulturae 110: V International Symposium on Virus diseases of Ornamental Plants
TWO VIRUSES FROM RHIZOMATOUS IRIS |
| Author: | V. Lisa |
| Abstract:
Two elongated viruses were isolated from a plant of rhizomatous iris with striped mosaic and reduced growth. The first virus (IrV-1), a potyvirus, infected only Iridaceae, was sap and aphid transmitted, and induced cytoplasmic inclusions consisting of pinwheels and laminated aggregates. Serologically IrV-1 was related to bearded iris mosaic virus and iris fulva mosaic virus. The second virus (IrV-2) was serologically related to lilac chlorotic leafspot virus (LCLV), at present classified as a closterovirus. IrV-2 infected 18 plant species belonging to 4 families, but could not be returned to Iridaceae; it was not aphid or seed transmitted. The virus was purified and antisera were prepared. Although closely related to LCLV, IrV-2 differs from it in host range and some other properties, and is therefore considered a strain of this virus. | |
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