First report of the detection of Bean yellow mosaic virus (BYMV) on Tropaeolum majus ; Hippeastrum spp. and Liatris spp. in South Africa

Abstract

The potyvirus, Bean yellow mosaic virus (BYMV) is an economically important plant virus which infects many leguminous crops (family Fabaceae) as well as members of the Liliaceae. BYMV has been detected in South Africa on Freesia spp., Gladiolus hortulanus, Lathyrus odoratus, Lupinus albus, Viola odoratus (Gorter, 1977) and Pisum sativum (Jooste et al., 2001), but few further studies have been conducted on this virus locally. During the current study, a RT-PCR capable of generic detection of potyviruses (Zheng et al., 2010) was utilised to detect these viruses from plant samples submitted by growers and previously shown to contain potyvirus-like flexuous rod-shaped particles by electron microscopy.