University of Massachusetts Amherst

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The image above shows a bumble bee, Bombus vagans, collecting nectar containing iridoid glycoside secondary metabolites from a turtlehead flower. The iridoid glyocoside catalpol, which is found in turtlehead nectar, is one of four nectar secondary chemicals that evolutionary ecologist Lynn Adler and other researchers from UMass Amherst and Dartmouth College discovered could lower pathogen loads in a bumble bee species. The results may have implications for growers who depend on pollinators and healthy bee populations. Learn more.

Photo credit:  Leif Richardson

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