ISHS Acta Horticulturae 164: VI International Symposium on Virus Diseases of Ornamental Plants
A STRAIN OF CLOVER YELLOW VEIN VIRUS INFECTING STATICE (LIMONIUM SINUATUM) |
| Authors: | R.H. Lawson, M.D. Brannigan, J. Foster |
| Abstract:
A potyvirus from statice, Limonium sinuatum, imported from Colombia, was identified as a strain of clover yellow vein virus (CYVV-St) by serology and immunoelectron microscopy (IEM). Two isolates, CYVV-St-1 and CYVV-St-2, were isolated one year apart in Chenopodium quinoa from the same statice plant. Although the two isolates infected many of the same species, they produced reactions of different severity on several hosts and CYVV-St-1 did not infect Phaseolus vulgaris 'Bountiful' that was infected by CYVV-St-2. The host ranges of both isolates were similar to those of BYMV and CYVV but more like those reported for CYVV. Purified CYVV-St-1 and CYVV-St-2 were compared in agar gel double-diffusion, indirect ELISA, double antibody sandwich ELISA and IEM to known isolates of clover yellow vein virus and bean yellow mosaic virus (CYVV-P, BYMV:204–1, BYMV-G and BYMV-G82–25). In all tests, CYVV-St-1 and 2 were identical and showed a close serological relationship to CYVV-P from white clover, an intermediate relationship to BYMV:204–1 from red clover and a more distant relationship to BYMV-G and BYMV-G82-25 from gladioli. Antiserum to Statice virus Y (StaVY) from Germany reacted more strongly with CYVV-P and CYVV-St than with the BYMV isolates. | |
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