Covering: up to September 2022Orchids are renowned not only for their diversity of floral forms, but also for their many and often highly specialised pollination strategies. Volatile semiochemicals play a crucial role in the attraction of a wide variety of insect pollinators of orchids. The compounds produced by orchid flowers are as diverse as the pollinators they attract, and here we summarise some of the chemical diversity found across orchid taxa and pollination strategies. We focus on compounds that have been experimentally demonstrated to underpin pollinator attraction. We also highlight the structural elucidation and synthesis of a select subset of important orchid pollinator attractants, and discuss the ecological significance of the discoveries, the gaps in our current knowledge of orchid pollination chemistry, and some opportunities for future research in this field.
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First comprehensive report on the chemical composition of the floral perfume of (Orchidaceae).
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Programa de Pós-graduação em Ciências Biológicas - Botânica Tropical, Universidade Federal Rural da Amazônia/Museu Paraense Emílio Goeldi, Belém, Brazil.
This study presents the first complete analysis of the chemical composition of the flowers of the species and . The compounds were extracted distillation and simultaneous extraction and analysed using gas chromatography coupled to mass spectrometry. A total of 82 compounds were identified and the results reveal significant differences in the abundance of compounds between the species.
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Discov Plants
December 2024
Biology Department, Vancouver Island University, 900 Fifth St, Nanaimo, BC V9R 5S5 Canada.
Unlabelled: Flower morphology often changes over altitude, although the patterns themselves can be variable, with flowers being either smaller or larger. Floral trait variation is often considered in the context of pollinator-mediated selection. However, other explanations, including underlying genetics and plasticity, resource availability and floral enemies have been proposed.
View Article and Find Full Text PDFFloral morphological and chemical analyses of Dienia flowers (Orchidaceae, Malaxidinae) relative to pollination processes.
Sci Rep
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School of Earth and Environmental Sciences, Cardiff University, Main Building, Park Place, Cardiff, CF10 3AT, UK.
Dienia is a small, pantropical genus of epidendroid Malaxideae orchids. The floral lip is upwardly directed and does not serve as a landing platform for pollinators. This role has been assumed by sepals and/or gynostemium or whole inflorescence.
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Graduate Program in Translational Agricultural Sciences, National Cheng Kung University and Academia Sinica, Tainan City, Taiwan.
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Unveiling the molecular mechanism of sepal curvature in Section through full-length transcriptome and RNA-seq analysis.
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Chongqing Key Laboratory of Big Data for Bio Intelligence, Chongqing University of Posts and Telecommunications, Chongqing, China.
Introduction: Orchids are renowned for their intricate floral structures, where sepals and petals contribute significantly to ornamental value and pollinator attraction. In Section , the distinctive curvature of these floral organs enhances both aesthetic appeal and pollination efficiency. However, the molecular and cellular mechanisms underlying this trait remain poorly understood.
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