Capsicum chlorosis virus infecting Capsicum annuum in the East Kimberley region of Western Australia
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Capsicum chlorosis virus (CaCV) was detected in field grown Capsicum annuum from Kununurra in north-east Western Australia. Identification of the Kununurra isolate (WA-99) was confirmed using sap transmission to indicator hosts, positive reactions with tospovirus serogroup IV-specific antibodies and CaCV-specific primers, and amino acid sequence comparisons that showed > 97% identity with published CaCV nucleocapsid gene sequences. The reactions of indicator hosts to infection with WA-99 often differed from those of the type isolate from Queensland. The virus multiplied best when test plants were grown at warm temperatures. CaCV was not detected in samples collected in a survey of C. annuum crops planted in the Perth Metropolitan area.
Additional keywordstospovirus identification host range symptomatology sequence
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