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Removal of floral microbiota reduces floral terpene emissions

The emission of floral terpenes plays a key role in pollination in many plant species. We hypothesized that the floral phyllospheric microbiota could significantly influence these floral terpene emissions because microorganisms also produce and emit terpenes. We tested this hypothesis by analyzing t...

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Autores principales: Peñuelas, Josep, Farré-Armengol, Gerard, Llusia, Joan, Gargallo-Garriga, Albert, Rico, Laura, Sardans, Jordi, Terradas, Jaume, Filella, Iolanda
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group 2014
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4205883/
https://www.ncbi.nlm.nih.gov/pubmed/25335793
http://dx.doi.org/10.1038/srep06727
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author Peñuelas, Josep
Farré-Armengol, Gerard
Llusia, Joan
Gargallo-Garriga, Albert
Rico, Laura
Sardans, Jordi
Terradas, Jaume
Filella, Iolanda
author_facet Peñuelas, Josep
Farré-Armengol, Gerard
Llusia, Joan
Gargallo-Garriga, Albert
Rico, Laura
Sardans, Jordi
Terradas, Jaume
Filella, Iolanda
author_sort Peñuelas, Josep
collection PubMed
description The emission of floral terpenes plays a key role in pollination in many plant species. We hypothesized that the floral phyllospheric microbiota could significantly influence these floral terpene emissions because microorganisms also produce and emit terpenes. We tested this hypothesis by analyzing the effect of removing the microbiota from flowers. We fumigated Sambucus nigra L. plants, including their flowers, with a combination of three broad-spectrum antibiotics and measured the floral emissions and tissular concentrations in both antibiotic-fumigated and non-fumigated plants. Floral terpene emissions decreased by ca. two thirds after fumigation. The concentration of terpenes in floral tissues did not decrease, and floral respiration rates did not change, indicating an absence of damage to the floral tissues. The suppression of the phyllospheric microbial communities also changed the composition and proportion of terpenes in the volatile blend. One week after fumigation, the flowers were not emitting β-ocimene, linalool, epoxylinalool, and linalool oxide. These results show a key role of the floral phyllospheric microbiota in the quantity and quality of floral terpene emissions and therefore a possible key role in pollination.
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spelling pubmed-42058832014-10-24 Removal of floral microbiota reduces floral terpene emissions Peñuelas, Josep Farré-Armengol, Gerard Llusia, Joan Gargallo-Garriga, Albert Rico, Laura Sardans, Jordi Terradas, Jaume Filella, Iolanda Sci Rep Article The emission of floral terpenes plays a key role in pollination in many plant species. We hypothesized that the floral phyllospheric microbiota could significantly influence these floral terpene emissions because microorganisms also produce and emit terpenes. We tested this hypothesis by analyzing the effect of removing the microbiota from flowers. We fumigated Sambucus nigra L. plants, including their flowers, with a combination of three broad-spectrum antibiotics and measured the floral emissions and tissular concentrations in both antibiotic-fumigated and non-fumigated plants. Floral terpene emissions decreased by ca. two thirds after fumigation. The concentration of terpenes in floral tissues did not decrease, and floral respiration rates did not change, indicating an absence of damage to the floral tissues. The suppression of the phyllospheric microbial communities also changed the composition and proportion of terpenes in the volatile blend. One week after fumigation, the flowers were not emitting β-ocimene, linalool, epoxylinalool, and linalool oxide. These results show a key role of the floral phyllospheric microbiota in the quantity and quality of floral terpene emissions and therefore a possible key role in pollination. Nature Publishing Group 2014-10-22 /pmc/articles/PMC4205883/ /pubmed/25335793 http://dx.doi.org/10.1038/srep06727 Text en Copyright © 2014, Macmillan Publishers Limited. All rights reserved http://creativecommons.org/licenses/by-nc-nd/4.0/ This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivs 4.0 International License. The images or other third party material in this article are included in the article's Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder in order to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by-nc-nd/4.0/
spellingShingle Article
Peñuelas, Josep
Farré-Armengol, Gerard
Llusia, Joan
Gargallo-Garriga, Albert
Rico, Laura
Sardans, Jordi
Terradas, Jaume
Filella, Iolanda
Removal of floral microbiota reduces floral terpene emissions
title Removal of floral microbiota reduces floral terpene emissions
title_full Removal of floral microbiota reduces floral terpene emissions
title_fullStr Removal of floral microbiota reduces floral terpene emissions
title_full_unstemmed Removal of floral microbiota reduces floral terpene emissions
title_short Removal of floral microbiota reduces floral terpene emissions
title_sort removal of floral microbiota reduces floral terpene emissions
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4205883/
https://www.ncbi.nlm.nih.gov/pubmed/25335793
http://dx.doi.org/10.1038/srep06727
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