Medicinal Value of Sunflower Pollen Against Bee Pathogens

Overview

Journal Sci Rep

Specialty Science

Date 2018 Sep 28

PMID 30258066

Citations 33

Authors

Jonathan J Giacomini

Jessica Leslie

David R Tarpy

Evan C Palmer-Young

Rebecca E Irwin

Lynn S Adler

Affiliations

Soon will be listed here.

Abstract

Global declines in pollinators, including bees, can have major consequences for ecosystem services. Bees are dominant pollinators, making it imperative to mitigate declines. Pathogens are strongly implicated in the decline of native and honey bees. Diet affects bee immune responses, suggesting the potential for floral resources to provide natural resistance to pathogens. We discovered that sunflower (Helianthus annuus) pollen dramatically and consistently reduced a protozoan pathogen (Crithidia bombi) infection in bumble bees (Bombus impatiens) and also reduced a microsporidian pathogen (Nosema ceranae) of the European honey bee (Apis mellifera), indicating the potential for broad anti-parasitic effects. In a field survey, bumble bees from farms with more sunflower area had lower Crithidia infection rates. Given consistent effects of sunflower in reducing pathogens, planting sunflower in agroecosystems and native habitat may provide a simple solution to reduce disease and improve the health of economically and ecologically important pollinators.

Citing Articles

The Role of Pathogens in Bumblebee Decline: A Review.

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Pollen chemical and mechanical defences restrict host-plant use by bees.

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