SEEDBORNE MOSAIC VIRUSES IN SOUTHERNPEA CULTIVARS

Study of resistance to cucumber mosaic virus watermelon mosaic virus and zucchini yellow mosaic virus in melon cultivars

RT-PCR Detection of Seedborne Cowpea aphid-borne mosaic virus in Peanut

In 1995, Cowpea aphid-borne mosaic virus (CABMV) of the family Potyviridae was reported to infect peanut (Arachis hypogaea L.) in Brazil (6). Leaf symptoms consisted of ring spots and blotches, and virus incidence was high when peanut was intercropped with cowpea (Vigna unguiculata (L.) Walp. subsp. unguiculata). CABMV was seed transmitted at approximately 0.15% in peanut and 6% in cowpea (6) a...

Detection of Seedborne Pathogens

Plant pathogens present a serious threat to seedling establishment and the potential for plant disease epidemics under greenhouse conditions is great. Hence, pathogen exclusion by detection and elimination of infested seedlots remains a requisite tactic for seedling production and disease management. Unfortunately, the numbers of contaminated seed within a lot may be low and infested seed may b...

Genetic diversity and phylogeography of cassava mosaic viruses in Kenya.

Cassava is a major factor in food security across sub-Saharan Africa. However, the crop is susceptible to losses due to biotic stresses, in particular to viruses of the genus Begomovirus (family Geminiviridae) that cause cassava mosaic disease (CMD). During the 1990s, an epidemic of CMD severely hindered cassava production across eastern and central Africa. A significant influence on the appear...

Distribution of Watermelon Mosaic Viruses 1 and 2 in Florida

Watermelon mosaic viruses 1 and 2 (WMV-1 and WMV-2) have both been collected in south and central Florida, but WMV-1 has been most prevalent in the southern and WMV-2 in the central counties. All WMV infections sampled from 1964 to 1969 in Collier and Hendry coun ties of south Florida were caused by WMV-1. Melothria pendula L., a native perennial cucurbitaceous weed, was found to be an over win...