Moore, C, Douglas, Farman, Dudley ORCID: https://orcid.org/0000-0003-3579-3672, Sarkinen, Tiina, Stevenson, Philip ORCID: https://orcid.org/0000-0002-0736-3619 and Vallejo-Marin, Mario (2024) Floral scent changes in response to pollen removal are rare in buzz‑pollinated Solanum. Planta, 260 (15). pp. 1-12. ISSN 0032-0935 (Print), 1432-2048 (Online) (doi:10.1007/s00425-024-04403-4)

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Abstract

Floral scent influences the recruitment, learning, and behaviour of floral visitors. Variation in floral scent can provide information on the amount of reward available or whether a flower has been visited recently and may be particularly important in species with visually concealed rewards. In many buzz-pollinated flowers, tubular anthers opening via small apical pores (poricidal anthers) visually conceal pollen and appear similar regardless of pollen quantity within the anther. We investigated whether pollen removal changes floral scent composition and emission rate in seven taxa of buzz-pollinated Solanum (Solanaceae). We found that pollen removal reduced both the overall emission of floral scent and the emission of specific compounds (linalool and farnesol) in S. lumholtzianum. Our findings suggest that in six out of seven buzz-pollinated taxa studied here, floral scent could not be used as a signal by visitors as it does not contain information on pollen availability.

Item Type:	Article
Uncontrolled Keywords:	chemical ecology; concealed reward; floral scent; linalool; plant–pollinator signalling; plant ecology; pollination; poricidal flower; volatile organic compound
Subjects:	Q Science > Q Science (General) S Agriculture > S Agriculture (General) S Agriculture > SB Plant culture
Faculty / School / Research Centre / Research Group:	Faculty of Engineering & Science Faculty of Engineering & Science > Natural Resources Institute Faculty of Engineering & Science > Natural Resources Institute > Agriculture, Health & Environment Department Faculty of Engineering & Science > Natural Resources Institute > Chemical Ecology Research Group Faculty of Engineering & Science > Natural Resources Institute > Centre for Sustainable Agriculture 4 One Health Faculty of Engineering & Science > Natural Resources Institute > Centre for Sustainable Agriculture 4 One Health > Chemical Ecology & Plant Biochemistry
Last Modified:	27 Nov 2024 14:34
URI:	http://gala.gre.ac.uk/id/eprint/47340

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