Floral Scent Chemistry of Luculia yunnanensis (Rubiaceae), a Species Endemic to China with Sweetly Fragrant Flowers

Li, Yuying; Wan, Yat-wah; Sun, Zimin; Li, Taiqiang; Liu, Xiongfang; Ma, Hong; Liu, Xiuxian; He, Rui; Ma, Yan; Li, Zhenghong

doi:10.3390/molecules22060879

Cited by 18 publications

(16 citation statements)

References 28 publications

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“…The results shown were comparable to a similar study conducted byLi et al (2017) for volatile emission from Luculia yunannensis. The highest compound diversity was observed during full bloom (37 volatile compounds) compared to partial bloom (31 copaene being the dominant compounds emitted during the blooming period.…”

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confidence: 89%

“…Meanwhile, plants can also rapidly alter their volatile floral production in response to volatile floral cues from their flowering neighbours (Caruso & Parachnowitsch, 2016;Ninkovic et al, 2016). This mechanism can increase the pollination rate and mating by increasing floral volatile emission to attract more pollinators (Li et al 2017).…”

Section: Effect Of Flowering Development Stages On the Phalaenopsis Bellina Floral Scent Emissionmentioning

confidence: 99%

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November 2020

2020

Plant Omics

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Phalaenopsis bellina, is an orchid widely known for their distinctive fragrance. Of late, fragrant orchids are getting more attention from Orchid breeders for their horticultural market value. Although volatile compounds have been identified in several orchid species, the floral scent emission of P. bellina is far from understood. Therefore, this study was carried out to investigate the influence of different timing and floral development stages on the volatile emissions from P. bellina flowers using Solid Phase Micro Extraction (SPME) and Gas Chromatography-Mass Spectrometry (GC-MS). The volatile compound was extracted during morning and afternoon sessions from three different floral developmental stages. The volatile compounds emitted from flowers from two different sessions were trapped with SPME fiber for 30 minutes before directly injected into GC-MS for identification. Results showed that approximately 79 volatile compounds were identified, with the terpenoid presented as the major compound class. P. bellina had the highest number of volatiles during the morning and full bloom (41), with 29.82% monoterpene and 23.33% sesquiterpenes accounted in total. α-farnesene (19.56%) was abundance during morning emission and remains as the highest volatile in afternoon emission (44.08%), even higher when compared to morning emission. However, a decrease in the volatile compound was observed in afternoon emission, in which only 34 volatile compounds detected. Meanwhile, partial bloom developmental stage revealed linalool as the major terpenoid volatile compounds (25.89%), with only 20 volatile compounds recorded. On the other hand, no volatile compounds were recorded and profiled from flower bud stage. The establishment of a floral scent study provides a brief overview of the regulation of fragrance in P. bellina, which can be continued through gene isolation or fragrance-related enzymes study. This information will provide necessary information on orchid floral scent research that useful in boosting horticultural trade of the scented orchids and their function in pollination ecology study.

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confidence: 89%

Section: Effect Of Flowering Development Stages On the Phalaenopsis Bellina Floral Scent Emissionmentioning

confidence: 99%

November 2020

2020

Plant Omics

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“…Although several studies have considered the chemical evaluation of floral scent [15][16][17], very little information has been published related to sensorial analysis of this important characteristic for the marketing of ornamental plants. Most of the sensorial analyses have been performed to evaluate food [18] and beverages, such as juice and wine [19,20].…”

Section: Introductionmentioning

confidence: 99%

Floral Scent Evaluation of Three Cut Flowers Through Sensorial and Gas Chromatography Analysis

et al. 2020

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The main function of floral scent is to attract and guide pollinators, but it is also an important character in the ornamental plant industry. Several studies have considered the chemical evaluation of floral scent during vase life, but only a few have considered sensorial analysis of this character, which is a very important quality trait for the marketing of ornamental plants. This study focused on assessing the floral scent of three fragrant cut flowers of high economic importance: Lilium, chrysanthemum, and freesia. Eighty individuals were included in a sensorial analysis where the attributes of floral scent liking and intensity were evaluated. The composition of the floral scent was analyzed through the collection of headspace followed by gas chromatography-mass spectrometry (GC-MS). The floral scents of oriental lily and freesia were perceived as more intense, compared to chrysanthemum. A total of 28 volatile compounds were detected and the monoterpenes β-pinene (40.7 ± 1.8 μg·L−1), β-cis-ocimene (5552 ± 990 μg·L−1), and linalool (11,800 ± 220 μg·L−1) were the major volatile organic compounds (VOCs) present in chrysanthemum, lilium, and freesia, respectively. The results presented in this study confirm that the concentration and abundance of volatile compounds is not directly related to the human perception of floral scent.

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“…In Rosa damascena, the main volatiles increase in the early stage flower development, peak in a second stage, decreasing thereafter [44]. Li et al [45] for Luculia pinceana considered four stages of flower development (bud, initial-flowering, full-flowering and end-flower) showing that floral scent emission had its peak level at the initial-flowering stage; an identical result was obtained one year later by the same group for Luculia yunnanensis flowers [46]. In the case of tepals of Magnolia denudata the highest amount of volatiles and strongest aroma intensity are at the semi open stage [47].…”

Section: Discussionmentioning

confidence: 73%

Phytochemicals and Volatiles in Developing Pelargonium ‘Endsleigh’ Flowers

et al. 2021

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Rose-scented geranium (Pelargonium sp.) have been the subject of many studies concerning essential oil, unlike the edible flowers of scent Pelargonium despite the beneficial properties of chemical compounds present in such organ and the fragrances produced. Therefore, we investigated organic compounds, total phenols and the antioxidant activity of the flowers with particular attention to the volatile compounds emitted by flowers of Pelargonium ‘Endsleigh’ at three stages of development. We identified several major phenols and organic compounds that revealed significative difference compared with other Pelargonium flowers, and employing the solid-phase micro extraction (SPME) methodology we determined that the production of volatile compounds decreases during the flower development. In addition, the emission of volatiles is accomplished mainly by the sepals. In conclusion, to use Pelargonium ‘Endsleigh’ flowers, it is important in ensuring that they have not yet opened and that the sepals are in place.

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Floral Scent Chemistry of Luculia yunnanensis (Rubiaceae), a Species Endemic to China with Sweetly Fragrant Flowers

Cited by 18 publications

References 28 publications

November 2020

November 2020

Floral Scent Evaluation of Three Cut Flowers Through Sensorial and Gas Chromatography Analysis

Phytochemicals and Volatiles in Developing Pelargonium ‘Endsleigh’ Flowers

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