Role of potyviruses in synergistic interaction leading to maize lethal necrotic disease on maize
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Date
2016
Journal Title
Journal ISSN
Volume Title
Publisher
International Journal of Current Microbiology and Applied Sciences
Abstract
Synergistic interactions among pathogenic viruses are common in plants.
Though not all, but a number of reported cases involving such interactions
have a potyvirus partner during co-infection. The presence of the potyvirus
group seems to favor its own multiplication on host and multiplication of a
co-infecting partner. In this review, some characteristics favoring higher
pathogenesis have been discussed using maize lethal necrosis (MLN)-
causing viruses namely Maize chlorotic mottle virus (MCMV) and its
synergistic potyvirus, Sugarcane mosaic virus (SCMV). A comprehensive
discussion on the role of potyvirus in the synergism has been presented to
show that in MLN and similar synergisms - the machinery for induction,
transmission and colonization of the host is catalysed by the potyvirus and
not the co-infecting viral partner which otherwise seems to be the most
virulent in the synergism-based diseases such as MLN disease in maize.
Furthermore, the effect of MLN to food security and areas for future
research for Africa has been discussed in this review.
Description
International Journal of Current Microbiology and Applied Sciences
Keywords
Synergistic Interaction, Potyviruses, Maize Lethal Necrotic Disease, Maize