| Title: | Floral Scent Chemistry and Pollinators of a Sexually Dimorphic Neotropical Orchid |
| Author(s): | Milet-Pinheiro P; Pinto CE; Navarro D; Silva JBF; Brandt K; Ayasse M; |
| Address: | "Laboratorio de Interacoes Ecologicas e Semioquimicos, Universidade de Pernambuco, Campus Petrolina, Rodovia BR 203, Km 2, Petrolina 56328-903, Brazil. Laboratorio de Ecologia Quimica, Departmento de Quimica Fundamental, Universidade Federal de Pernambuco, 1235 Avenida Professor Moraes Rego, Recife 50670-901, Brazil. Collaborator of the Departamento de Botanica, Goeldi Museum, Av. Magalhaes Barata 376, Belem 66040-170, Brazil. Institute of Evolutionary Ecology and Conservation Genomics, University of Ulm, 89081 Ulm, Germany" |
| ISSN/ISBN: | 2223-7747 (Print) 2223-7747 (Electronic) 2223-7747 (Linking) |
| Abstract: | "Catasetum is a speciose Neotropical orchid genus of which male and female flowers emit scents acting both as attractant and reward for their exclusive pollinators, male orchid bees (Euglossini: Apidae). In Catasetum, it is well known that flowers display a remarkably morphological sexual dimorphism. However, it remains poorly investigated whether this is also true for floral scents. Here, we investigated the pollination ecology and floral scent traits (chemistry and total emission) of C. maranhense, a species endemic to the Brazilian N/NE region. Males of Euglossa securigera are the only pollinators of C. maranhense. The floral scent of C. maranhense is composed of 29 volatile compounds, with eucalyptol, indole, (E)-Methyl p-methoxycinnamate, and (Z)-Methyl p-methoxycinnamate accounting for more than 80% of the scent bouquet. No sexual dimorphism was detected in any of the traits investigated. We discuss the ecological and evolutionary significance of our findings to Catasetum species and other unisexual perfume plants" |
| Keywords: | Catasetum Orchidaceae orchid bees perfume flowers pollination; |
| Notes: | "PubMed-not-MEDLINEMilet-Pinheiro, Paulo Pinto, Carlos E Navarro, Daniela M A F Silva, Joao B F Brandt, Katharina Ayasse, Manfred eng AY 12/12-1/Deutsche Forschungsgemeinschaft/ CNPq/Universal Proc.n. 422647/2021-7/National Council for Scientific and Technological Development/ CNPq/PQ Proc.n. 313948/2021-6/National Council for Scientific and Technological Development/ 06/2018/FADE-UFPE/ Switzerland 2023/01/09 Plants (Basel). 2022 Dec 20; 12(1):17. doi: 10.3390/plants12010017" |
