Journal
PLANTS-BASEL
Volume 11, Issue 14, Pages -Publisher
MDPI
DOI: 10.3390/plants11141841
Keywords
cassava; root yield; cassava frogskin disease; storage root; sugar content
Categories
Funding
- CGIAR Research Program on Roots, Tubers and Bananas
- United States Agency for International Development (USAID)
- CGIAR Plant Health (PHI) initiative
- CGIAR Accelerated Breeding (ABI) initiative
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Cassava frogskin disease (CFSD) is a graft-transmissible disease characterized by fissures on cassava roots and reduction in weight and starch content. The disease re-emerged in Colombia, posing a threat to food security and the local cassava starch industry.
Cassava frogskin disease (CFSD) is a graft-transmissible disease of cassava reported for the first time in the 1970s, in Colombia. The disease is characterized by the formation of longitudinal lip-like fissures on the peel of the cassava storage roots and a progressive reduction in fresh weight and starch content. Since its first report, different pathogens have been identified in CFSD-affected plants and improved sequencing technologies have unraveled complex mixed infections building up in plants with severe root symptoms. The re-emergence of the disease in Colombia during 2019-2020 is again threatening the food security of low-income farmers and the growing local cassava starch industry. Here, we review some results obtained over several years of CFSD pathology research at CIAT, and provide insights on the biology of the disease coming from works on symptoms' characterization, associated pathogens, means of transmission, carbohydrate accumulation, and management. We expect this work will contribute to a better understanding of the disease, which will reflect on lowering its impact in the Americas and minimize the risk of its spread elsewhere.
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