Identification and incidence of virus diseases of Capsicum annuum in the Lusaka Province of Zambia

Autor:	R. G. Kapooria, J. Ndunguru
Rok vydání:	1999
Předmět:	Alfamovirus food.ingredient biology viruses fungi Potyvirus food and beverages Cucumovirus Tobamovirus Plant Science Horticulture medicine.disease biology.organism_classification Virology Virus food Pepper medicine Tobacco mosaic virus Mottle Agronomy and Crop Science
Zdroj:	EPPO Bulletin. 29:183-189
ISSN:	1365-2338 0250-8052
DOI:	10.1111/j.1365-2338.1999.tb00815.x
Popis:	Commercial capsicum fields in Lusaka Province were surveyed for the presence of viruses during 1996-01/06. The survey demonstrated the occurrence of five viruses in 13 fields. Virus identification was based on field disease syndrome, host range studies, DAS-ELISA and electron microscopy. The identified viruses were alfalfa mosaic alfamovirus (AMV), potato Y potyvirus (PVY), tobacco mosaic tobamovirus (TMV), cucumber mosaic cucumovirus (CMV) and pepper mild mottle tobamovirus (PMMV). The most prevalent and widespread virus, recovered from 70% of the surveyed fields, was AMV, and this was followed by PVY and TMV, which were detected in 50% and 40% of the fields respectively. CMV and PMMV were less common and occurred in 30% of fields. The study also showed that PVY could infect capsicum plants alone or in combination with CMV or TMV. The average plant infections caused by AMV was 80–100% and by TMV and PVY 50% and 60% respectively. The disease incidence in the case of CMV was 15–60% and for PMMV 30–40%. This is a first report on the identification of viruses that infect capsicum in Zambia.
Databáze:	OpenAIRE
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