R. Gibson

Publications158
h-index39
Citations4,048
Highly Influential Citations261
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Symptoms, aetiology and serological analysis of sweet potato virus disease in Uganda
Sweet potato virus disease (SPVD) is the name used to describe a range of severe symptoms in different cultivars of sweet potato, comprising overall plant stunting combined with leaf narrowing and…
Synergistic interactions of a potyvirus and a phloem-limited crinivirus in sweet potato plants.
TLDR
It is hypothesized that SPCSV is able to enhance the multiplication of SPFMV in tissues other than where it occurs itself, perhaps by interfering with systemic phloem-dependent signaling required in a resistance mechanism directed against SP FMV.
The Significance of Sweet Potato Feathery Mottle Virus in Subsistence Sweet Potato Production in Africa.
Sweetpotato Viruses: 15 Years of Progress on Understanding and Managing Complex Diseases.
TLDR
This article is intended to summarize what has been learned since earlier reviews, integrate knowledge gleaned from experiences in tropical and temperate production systems, and suggest courses of action to develop sustainable management programs for sweetpotato virus diseases.
Unusually severe symptoms are a characteristic of the current epidemic of mosaic virus disease of cassava in Uganda
TLDR
It is suggested that an unusually severe form of ACMV or a closely related geminivirus is likely to be the cause of the severe mosaic disease in cassava plants infected within the area of the current epidemic in northern and central Uganda.
Incidence of five viruses infecting sweetpotatoes in Uganda; the first evidence of Sweet potato caulimo‐like virus in Africa
TLDR
The identification of SPCaLV is the first evidence of its occurrence in Africa, being found in districts around Lake Victoria and in the Rift Valley in southern and western parts of Uganda.
Comparisons of coat protein gene sequences show that East African isolates of Sweet potato feathery mottle virus form a genetically distinct group
TLDR
Data indicate that East African isolates of SPFMV form a genetically unique group, whereas the other isolates were not clustered according to geographic origin.
Identification and distribution of viruses infecting sweet potato in Kenya
TLDR
Four hundred and forty-eight symptomatic and asymptomatic samples were collected from sweet potato fields throughout Kenya and analysed serologically using antibodies to Sweet potato feathery mottle virus (SPFMV), SPMMV, SPCSV, and SPCFV, finding eight different combinations of these four viruses found in individual plants.
Control strategies for sweet potato virus disease in Africa.
Apparent absence of viruses in most symptomless field-grown sweet potato in Uganda.
TLDR
Symptomless sweet potato (Ipomoea batatas) plants obtained from farmers' fields in each of the main sweet potato growing regions of Uganda were tested by nitro-cellulose membrane enzyme-linked immunosorbent assays (NCM-ELISA) for sweet potato feathery mottle virus (SPFMV) and SPFMV alone was identified by NCM- ELISA.
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