Composition and Emission Rhythm of Floral Scent Volatiles from Eight Lily Cut Flowers

Abstract

<jats:p>Floral scents emitted from eight cultivars of cut lily flowers (<jats:italic>Lilium</jats:italic>) were analyzed. Floral volatiles were collected by headspace adsorption on sorbent tubes and analyzed by gas chromatography–mass spectrometry (GC/MS) using a direct thermal desorption. Fifty volatile compounds were identified. Nine compounds were detected in all lilies, whereas 20 compounds were detected in all scented lilies. The results revealed that non-scented lilies emitted trace amounts of volatile compounds, whereas scented lilies emitted high levels of volatile compounds. Monoterpenoids and benzenoids were the dominant compound classes of volatiles emitted from scented lilies. Myrcene, (<jats:italic>E</jats:italic>)-β-ocimene, linalool, methyl benzoate, and ethyl benzoate were the major compounds of the aroma of scented lilies; 1,8-cineole was also a major compound in the two scented oriental × trumpet hybrid lilies. Scent emissions occurred in a circadian rhythm with higher levels of volatiles emitted during the night. <jats:italic>Lilium</jats:italic> ‘Siberia’ was selected as a model to investigate the source of the emissions. GC/MS analysis of four flower parts and neutral red staining revealed that tepals were the source of floral scent.</jats:p>

Floral fragrances ofHemerocallisL. (daylily) evaluated by headspace solid-phase microextraction with gas chromatography-mass spectrometry

“…et C. A. Mey. (5) was determined by linalool rather than by (E)-β-ocimene, and, therefore, the sweet floral scent (Kong et al, 2012;Minh et al, 2002). The total floral volatile relative emission rate in H. middendorfii Trautv.…”

“…With the development of techniques for detecting volatile compounds, many floral volatiles of ornamental plants have been identified. Studies of floral volatiles have been conducted with the goal of breeding fragrant cultivars in some important ornamental plants, such as tree peonies (Li, Chen, Xu, Wang, & Wang, 2012), lilies (Kong, Sun, Pan, & Zhang, 2012), roses (Feng, Sheng, Tao, Zhao, & Shao, 2009;Héthelyi, Szarka, Lemberkovics, & Szőke, 2010), tulips (OyamaOkubo & Tsuji, 2013), and herbaceous peonies (Huang, Wang, Wang, Sun, & Guo, 2010). However, few studies have investigated floral volatiles of Hemerocallis Wang, Wu, & Ding, 1994), which has affected the development of daylilies with intense fragrance.…”

A Comparative Analysis of Floral Scent Compounds in Intraspecific Cultivars of Prunus mume with Different Corolla Colours

“…The composition and number of VOCs vary among different species or even in interspecific and intraspecific cultivars [4,5]. In recent years, more and more studies focusing on floral fragrance profiles have been performed in many fragrant plants, including Lilium [6,7], Gelsemium sempervirens [8], Chimonanthus praecox [9], Camellia [4], Polianthes tuberosa [5], and bearded irises [10], etc. VOCs released from these flowers are basically divided into four classes by the biosynthesis origin: terpenoids, phenylpropanoids/benzenoids, fatty acid derivatives, and compounds containing nitrogen/sulfur [11].…”

Variation in Floral Scent Compositions of Different Lily Hybrid Groups

“…This task is hindered by a lack of floral scent research in lily. Previous studies on Lilium species and lily cut flowers demonstrated that scented lilies showed a nocturnal emission pattern, and their major volatiles were monoterpenoids and benzenoids, with the tepals as the source of floral scent (Kong et al, 2012(Kong et al, , 2013Morinaga et al, 2009;Oyama-Okubo et al, 2011). A detailed volatile profile for a large group of cultivars has not yet been undertaken.…”