Aphid Feeding on Plant Lectins Falling Virus Transmission Rates: A Multicase Study

Aphids are insect vectors that have piercing–sucking mouthparts supporting diversified patterns of virus–vector interactions. Aphids primarily retain circulative viruses in the midgut/hindgut, whereas noncirculative viruses tend to be retained in the stylet. Most viruses, and many proteins from anim...

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Published inJournal of economic entomology Vol. 113; no. 4; pp. 1635 - 1639
Main Authors Francis, Frederic, Chen, Julian, Yong, Liu, Bosquee, Emilie
Format Journal Article
LanguageEnglish
Published US Entomological Society of America 13.08.2020
Oxford University Press
Subjects
Accidental Falls
Acyrthosiphon pisum
Analysis
Animals
aphid
Aphididae
Aphids
ARTHROPODS IN RELATION TO PLANT DISEASE
Beans
Binding sites
Concanavalin A
Dwarf disease
Ethylenediaminetetraacetic acid
Genetic vectors
glycoprotein
Glycoproteins
Hindgut
Homoptera
Insects
lectin
Lectins
Legumes
Luteovirus
Midgut
Mimosaceae
Mouthparts
Plant Diseases
Plant Lectins
Plant protection
Plant Viruses
Potatoes
receptor
Statistics
Vectors
virus transmission
Viruses
glycoprotein
receptor
lectin
virus transmission
aphid
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Summary:Aphids are insect vectors that have piercing–sucking mouthparts supporting diversified patterns of virus–vector interactions. Aphids primarily retain circulative viruses in the midgut/hindgut, whereas noncirculative viruses tend to be retained in the stylet. Most viruses, and many proteins from animals, have carbohydrate or carbohydrate-binding sites. Lectins vary in their specificity, of which some are able to bind to viral glycoproteins. To assess the potential competition between lectins and viral particles in virus transmission by aphids, this study examined how feeding plant lectins to aphids affects the transmission efficiency of viruses. Sitobion avenae (F, 1794) (Homoptera: Aphididae) aphids fed with Pisum sativum lectin (PSL) transmitted Barley yellow dwarf virus with significantly lower efficiency (four-fold ratio). Pea enation mosaic virus was significantly reduced in Acyrthosiphon pisum Harris (Homoptera: Aphididae) aphids fed with the lectin Concanavalin A. In comparison, the transmission of Potato virus Y was significantly reduced when Myzus persicae Sultzer (Homoptera: Aphididae) aphids were fed with PSL. Thus, lectin could be used as a blocking agent of plant viruses, facilitating an alternative approach for crop protection.
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ISSN:0022-0493
1938-291X
DOI:10.1093/jee/toaa104