Capsicum chlorosis virus infecting Capsicum annuum in the East Kimberley region of Western Australia

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Contents Vol 34(3)

doi:10.1071/AP05026

Capsicum chlorosis virus infecting Capsicum annuum in the East Kimberley region of Western Australia

R. A. C. Jones ^A ^B ^D, M. Sharman ^C

^A Department of Agriculture, Locked Bag No. 4, Bentley Delivery Centre, Bentley, WA 6983, Australia.
^B School of Biological Sciences and Biotechnology, Murdoch University, Murdoch, WA 6150, Australia.
^C Department of Primary Industries and Fisheries, 80 Meiers Road, Indooroopilly, Qld 4068, Australia.
^D Corresponding author. Email: rjones@agric.wa.gov.au





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Australasian Plant Pathology 34(3) 397–399 http://dx.doi.org/10.1071/AP05026
Submitted: 1 December 2004 Accepted: 31 January 2005 Published online: 16 September 2005

Abstract

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.

Keywords: tospovirus, identification, host range, symptomatology, sequence.