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Sci Rep

Title:		Removal of floral microbiota reduces floral terpene emissions
Author(s):		Penuelas J; Farre-Armengol G; Llusia J; Gargallo-Garriga A; Rico L; Sardans J; Terradas J; Filella I;
Address:		"1] CSIC, Global Ecology Unit CREAF-CSIC-UAB, Cerdanyola del Valles, 08193 Barcelona, Catalonia, Spain [2] CREAF, Cerdanyola del Valles, 08193 Barcelona, Catalonia, Spain. 1] CSIC, Global Ecology Unit CREAF-CSIC-UAB, Cerdanyola del Valles, 08193 Barcelona, Catalonia, Spain [2] CREAF, Cerdanyola del Valles, 08193 Barcelona, Catalonia, Spain [3] Servei de Ressonancia Magnetica, Faculty of Sciences and Biosciences, Universitat Autonoma de Barcelona, Bellaterra, 08193 Barcelona, Catalonia, Spain. 1] CREAF, Cerdanyola del Valles, 08193 Barcelona, Catalonia, Spain [2] Departament de Biologia Vegetal, Animal i Ecologia, Universitat Autonoma de Barcelona, Cerdanyola del Valles, 08913 Barcelona, Catalonia, Spain"
Journal Title:		Sci Rep
Year:		2014
Volume:		20141022
Issue:
Page Number:		6727 -
DOI:		10.1038/srep06727
ISSN/ISBN:		2045-2322 (Electronic) 2045-2322 (Linking)
Abstract:		"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 beta-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"
Keywords:		Anti-Bacterial Agents/administration & dosage Flowers/drug effects/growth & development/*metabolism Microbiota/*physiology *Pollination Terpenes/*metabolism;
Notes:		"MedlinePenuelas, Josep Farre-Armengol, Gerard Llusia, Joan Gargallo-Garriga, Albert Rico, Laura Sardans, Jordi Terradas, Jaume Filella, Iolanda eng 610028/ERC_/European Research Council/International Research Support, Non-U.S. Gov't England 2014/10/23 Sci Rep. 2014 Oct 22; 4:6727. doi: 10.1038/srep06727"