Reduction in vertical transmission rate of bean common mosaic virus in bee-pollinated common bean plants

Vertical transmission, the transfer of pathogens across generations, is a critical mechanism for the persistence of plant viruses. The transmission mechanisms are diverse, involving direct invasion through the suspensor and virus entry into developing gametes before achieving symplastic isolation. D...

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Bibliographic Details
Published in:Virology journal 2024-06, Vol.21 (1), p.147-6, Article 147
Main Authors: Mhlanga, Netsai M, Pate, Adrienne E, Arinaitwe, Warren, Carr, John P, Murphy, Alex M
Format: Article
Language:English
Subjects:
Animals
Bean common mosaic necrosis virus
Bean common mosaic virus
Beans
Bees
Bees - virology
Bumblebees
Common beans
Cucumber mosaic virus
Cucumovirus - physiology
Disease transmission
Diseases and pests
Distribution
Infection
Infectious Disease Transmission, Vertical
Insect viruses
Legumes
Mimosaceae
Phaseolus - virology
Phaseolus vulgaris
Physiological aspects
Plant Diseases - virology
Plant viruses
Pollen
Pollination
Potyvirus - physiology
Seeds - virology
Vertical transmission
Virus diseases
Virus diseases of plants
Virus research
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Summary:Vertical transmission, the transfer of pathogens across generations, is a critical mechanism for the persistence of plant viruses. The transmission mechanisms are diverse, involving direct invasion through the suspensor and virus entry into developing gametes before achieving symplastic isolation. Despite the progress in understanding vertical virus transmission, the environmental factors influencing this process remain largely unexplored. We investigated the complex interplay between vertical transmission of plant viruses and pollination dynamics, focusing on common bean (Phaseolus vulgaris). The intricate relationship between plants and pollinators, especially bees, is essential for global ecosystems and crop productivity. We explored the impact of virus infection on seed transmission rates, with a particular emphasis on bean common mosaic virus (BCMV), bean common mosaic necrosis virus (BCMNV), and cucumber mosaic virus (CMV). Under controlled growth conditions, BCMNV exhibited the highest seed transmission rate, followed by BCMV and CMV. Notably, in the field, bee-pollinated BCMV-infected plants showed a reduced transmission rate compared to self-pollinated plants. This highlights the influence of pollinators on virus transmission dynamics. The findings demonstrate the virus-specific nature of seed transmission and underscore the importance of considering environmental factors, such as pollination, in understanding and managing plant virus spread.
ISSN:1743-422X
1743-422X
DOI:10.1186/s12985-024-02407-w