Globally, crops are being infested with molds. In tropical regions, Aspergillus species
commonly occur, some of which produce aflatoxins. Aflatoxins are hepatotoxic,
nephrotoxic and carcinogenic to different degrees in livestock as well as humans,
causing acute fatal disease as well as chronic il...
Lindahl, Johanna F.
,
Harvey, Jagger J.W.
,
Grace, Delia
,
[Aflatoxins: Serious threat to food safety and food security: But is it related to livestock?]
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Aflatoxins: Serious threat to food safety and food security: But is it related to livestock?
Maize, a staple food in many African countries including Kenya, is often contaminated by toxic and carcinogenic fungal secondary metabolites such as aflatoxins and fumonisins. This study evaluated the potential use of a low-cost, multi-spectral sorter in identification and removal of aflatoxin- a...
Cassava is an important root crop to resource-poor farmers in marginal areas, where its production faces drought stress constraints. Given the difficulties associated with cassava breeding, a molecular understanding of drought tolerance in cassava will help in the identification of markers for us...
Turyagyenda, L.F.
,
Kizito, E.B.
,
Ferguson, M.
,
Baguma, Yona K.
,
Agaba, Morris
,
Harvey, Jagger J.W.
,
Osiru, D.S.O.
,
[Physiological and molecular characterization of drought responses and identification of candidate tolerance genes in cassava]
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Physiological and molecular characterization of drought responses and identification of candidate tolerance genes in cassava
Background: Argonaute (AGO) proteins bind to small-interfering (si)RNAs and micro (mi)RNAs to target RNA silencing
against viruses, transgenes and in regulation of mRNAs. Plants encode multiple AGO proteins but, in Arabidopsis, only AGO1
is known to have an antiviral role.
Methodology/Principal F...
Harvey, Jagger J.W.
,
Lewsey, M.G.
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Patel, K.
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Westwood, J.
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Heimsta, S.
,
Carr, J.P.
,
Baulcombe, D.C.
,
[An antiviral defense role of AGO2 in plants]
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An antiviral defense role of AGO2 in plants
This article sets the background for an exciting new linkage between Australian and Africa-based scientists who will use NIR to enhance the safety and value of traditional African crops. It has long been advocated that NIR spectroscopy should be deployed in this fashion because of its inherent ad...
Fox, G.
,
Harvey, Jagger J.W.
,
Gnonlonfin, G.J.B.
,
McMillan, L.
,
[New NIR diagnostics platform for agricultural research in East and Central Africa]
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New NIR diagnostics platform for agricultural research in East and Central Africa
Sorghum was the first indigenous African crop to have a completed genome sequence. This provides an invaluable tool for understanding sorghum traits genetically and identifying useful molecular markers. The challenge is to extract relevant information to improve the diverse complex traits of sorg...
Kelemu, Segenet
,
Gebrekidan, B.
,
Harvey, Jagger J.W.
,
[Bringing the benefits of sorghum genomics to Africa]
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Bringing the benefits of sorghum genomics to Africa
A total of 202 poultry feed and its raw ingredients collected from different agroecological zones of Cameroon were examined for total mycoflora and the ability of A. flavus isolates to produces aflatoxin B1. Dilution plating was used for fungal isolation. The mean fungal contamination levels were...
Kana, J.R.
,
Gnonlonfin, G.J.B.
,
Harvey, Jagger J.W.
,
Wainaina, J.
,
Wanjuki, I.
,
Skilton, Robert A.
,
Teguia, A.
,
[Mycobiota and toxigenecity profile of Aspergillus flavus recovered from food and poultry feed mixtures in Cameroon]
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Mycobiota and toxigenecity profile of Aspergillus flavus recovered from food and poultry feed mixtures in Cameroon
Food security considerations have shifted in recent years, with the recognition that available food should also be nutritious and safe. There is a growing evidence base for contamination of maize and other crops by fungal toxins in the tropics and sub-tropics. As an initial snapshot of contaminat...
Nishimwe, Kizito
,
Wanjuki, I.
,
Karangwa, C.
,
Darnell, Ross
,
Harvey, Jagger J.W.
,
[An initial characterization of aflatoxin B1 contamination of maize sold in the principal retail markets of Kigali, Rwanda]
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An initial characterization of aflatoxin B1 contamination of maize sold in the principal retail markets of Kigali, Rwanda