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  Biosynthetic and functional color-scent associations in flowers of Papaver nudicaule and its impact on pollinators

Martínez-Harms, J., Warskulat, A.-C., Dudek, B., Kunert, G., Lorenz, S., Hansson, B. S., et al. (2018). Biosynthetic and functional color-scent associations in flowers of Papaver nudicaule and its impact on pollinators. Chembiochem, 19(14), 1553-1562. doi:10.1002/cbic.201800155.

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 Creators:
Martínez-Harms, Jaime1, Author              
Warskulat, Anne-Christin2, 3, Author              
Dudek, Bettina2, 3, Author              
Kunert, Grit4, Author              
Lorenz, Sybille5, Author              
Hansson, Bill S.1, Author              
Schneider, Bernd2, Author              
Affiliations:
1Department of Evolutionary Neuroethology, Prof. B. S. Hansson, MPI for Chemical Ecology, Max Planck Society, ou_421894              
2Research Group Biosynthesis / NMR, MPI for Chemical Ecology, Max Planck Society, ou_421898              
3IMPRS on Ecological Interactions, MPI for Chemical Ecology, Max Planck Society, Jena, DE, ou_421900              
4Statistical Service, Dr. Grit Kunert, MPI for Chemical Ecology, Max Planck Society, ou_3171479              
5Research Group Mass Spectrometry, MPI for Chemical Ecology, Max Planck Society, ou_421899              

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 Abstract: Despite the increasing evidence for biosynthetic connections between flower pigments and volatiles, examples of such relationships in polymorphic plant species remains limited. Here, we investigated color-scent associations in flowers from Papaver nudicaule (Papaveraceae). We determined the spectral reflectance and the scent composition of flowers of four color cultivars. We found that pigments and volatiles occur in specific combinations in flowers of P. nudicaule. The presence of indole in the bouquets is strongly associated with the occurrence of yellow pigments called nudicaulins, for which indole is one of the final biosynthetic precursors. While yellow flowers emit an excess of indole, orange flowers consume it during nudicaulin production and lack the substance in their bouquet. Using the honeybee, Apis mellifera, we evaluated how color and scent affect the discrimination of these flowers by pollinators. Honeybees were able to discriminate artificial odor mixtures resembling the natural flower odors. Bees trained with stimuli combining colors and odors showed an improved discrimination performance. Our results indicate that the indole moiety of nudicaulins and emitted indole might be products of the same biochemical pathway. We propose that conserved pathways account for the evolution of color-scent associations in P. nudicaule and that these associations positively affect flower constancy of pollinators.

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 Dates: 20182018-06-162018-06-16
 Publication Status: Published in print
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 Rev. Type: -
 Identifiers: Other: HAN307
DOI: 10.1002/cbic.201800155
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Title: Chembiochem
  Other : Chembiochem
Source Genre: Journal
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Publ. Info: Weinheim, Germany : Wiley-VCH
Pages: - Volume / Issue: 19 (14) Sequence Number: - Start / End Page: 1553 - 1562 Identifier: ISSN: 1439-4227
CoNE: https://pure.mpg.de/cone/journals/resource/110978984568897