AI Article Synopsis
- Floral scent is crucial for both day and night pollination, especially for bat-pollinated flowers where smell outweighs sight.
- There’s limited research on the floral scents of cacti, particularly those that attract bats, so our study focused on comparing the scents of three related cactus species.
- We found a unique case of a bat-pollinated cactus with no detectable scent, alongside insights into the scent similarities between other related species, emphasizing the need for more research to understand how bats locate flowers without scent.
Article Abstract
Floral scent is a key olfactory cue in both diurnal and nocturnal pollination systems. In the case of nocturnal systems, such as bat-pollinated flowers, odour seems to play a more important role than visual cues. Cactaceae include many bat-pollinated species; however, few studies have investigated the olfactory cues in this family. We analysed and compared the chemical composition of the floral bouquet of three chiropterophilous cactus species, among which are a pair of congeners that differ considerably in scent intensity. Our research presents novel findings regarding the floral scent chemistry of chiropterophilous cactus species. We documented the first case of a bat-pollinated cactus whose flowers lack perceptible floral scent and in which no volatile compounds were detected in our chemical analyses. Additionally, we provide a comprehensive analysis of the chemical composition of the floral bouquet of the other two bat-pollinated species, revealing a resemblance among closely related species within the same genus. We highlight the need for further studies using biotests to investigate the mechanisms through which bats find flowers lacking scent.
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| http://dx.doi.org/10.1111/plb.13586 | DOI Listing |
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