| Title: | Phylogeny and abiotic conditions shape the diel floral emission patterns of desert Brassicaceae species |
| Author(s): | Cna'ani A; Dener E; Ben-Zeev E; Gunther J; Kollner TG; Tzin V; Seifan M; |
| Address: | "Jacob Blaustein Center for Scientific Cooperation, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer campus, Midreshet Ban-Gurion, Israel. The Albert Katz International School for Desert Studies, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer campus, Midreshet Ban-Gurion, Israel. Nancy and Stephen Grand Israel National Center for Personalized Medicine, The Department of Life Sciences Core Facilities, Weizmann Institute of Science, Rehovot, Israel. Department of Natural Product Biosynthesis, Max Planck Institute for Chemical Ecology, Jena, Germany. Section of Plant Biochemistry, Department of Plant and Environmental Science, University of Copenhagen, Copenhagen, Denmark. French Associates Institute for Agriculture and Biotechnology of Drylands, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer campus, Midreshet Ban-Gurion, Israel. Mitrani Department of Desert Ecology, Swiss Institute for Dryland Environmental and Energy Research, Jacob Blaustein Institutes for Desert Research, Ben-Gurion University of the Negev, Sede Boqer campus, Midreshet Ban-Gurion, Israel" |
| ISSN/ISBN: | 1365-3040 (Electronic) 0140-7791 (Linking) |
| Abstract: | "A key facet of floral scent is diel fluctuations in emission, often studied in the context of plant-pollinator interactions, while contributions of environment and phylogeny remain overlooked. Here, we ask if these factors are involved in shaping temporal variations in scent emission. To that end, we coupled light/dark floral emission measurements of 17 desert Brassicaceae species with environmental and phylogenetic data to explore the individual/combined impacts of these predictors on diel emission patterns. We further investigated these patterns by conducting high-resolution emission measurements in a subset of genetically distant species with contrasting temporal dynamics. While diel shifts in magnitude and richness of emission were strongly affected by genetic relatedness, they also reflect the environmental conditions under which the species grow. Specifically, light/dark emission ratios were negatively affected by an increase in winter temperatures, known to impact both plant physiology and insect locomotion, and sandy soil fractions, previously shown to exert stress that tempers with diel metabolic rhythms. Additionally, the biosynthetic origins of the compounds were associated with their corresponding production patterns, possibly to maximize emission efficacy. Using a multidisciplinary chemical/ecological approach, we uncover and differentiate the main factors shaping floral scent diel fluctuations, highlighting their consequences under changing global climate" |
| Keywords: | Animals Brassicaceae/*chemistry/genetics/*physiology Darkness Desert Climate Flowers/chemistry/*physiology Gas Chromatography-Mass Spectrometry Insecta Israel Light *Phylogeny Plant Proteins/genetics Pollination Ribosomal Proteins/genetics Volatile Organi; |
| Notes: | "MedlineCna'ani, Alon Dener, Efrat Ben-Zeev, Efrat Gunther, Jan Kollner, Tobias G Tzin, Vered Seifan, Merav eng Research Support, Non-U.S. Gov't 2021/03/15 Plant Cell Environ. 2021 Aug; 44(8):2656-2671. doi: 10.1111/pce.14045. Epub 2021 Apr 25" |
