First report of tomato chlorosis crinivirus in Portugal
In autumn 1998, unusual symptoms were observed in a protected tomato crop of the Experimental Station at Patacão, in Algarve (south of Portugal). Affected plants showed chlorotic mottle and interveinal chlorosis. High populations of Bemisia tabaci (EPPO A2 quarantine pest) were also present. In 1999, similar symptoms were seen in commercial tomato crops in Algarve. PCR analysis revealed the presence of tomato chlorosis crinivirus (EPPO Alert List). It was noted that most samples collected in Algarve in June 1999 were only infected by tomato chlorosis crinivirus, whereas those collected in October in the same areas were infected by both tomato chlorosis crinivirus and tomato yellow leaf curl begomovirus (EPPO A2 quarantine pest). Tomato samples with yellowing symptoms from central and north Portugal were not infected by tomato chlorosis crinivirus. This is the first report of tomato chlorosis crinivirus in Portugal. The status of this virus in Portugal can be described as: Present, only in one area (Algarve).
Louro, D.; Accotto, G.P.; Vaira, A.M. (2000) Occurrence and diagnosis of tomato chlorosis virus in Portugal.
European Journal of Plant Pathology, 106(6), 589-592.