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Molecules

Title:		Identification and Evaluation of Aromatic Volatile Compounds in 26 Cultivars and 8 Hybrids of Freesia hybrida
Author(s):		Weng S; Fu X; Gao Y; Liu T; Sun Y; Tang D;
Address:		"School of Design, Shanghai Jiao Tong University, Shanghai 200240, China. Instrumental Analysis Center, Shanghai Jiao Tong University, Shanghai 200240, China"
Journal Title:		Molecules
Year:		2021
Volume:		20210725
Issue:		15
Page Number:		-
DOI:		10.3390/molecules26154482
ISSN/ISBN:		1420-3049 (Electronic) 1420-3049 (Linking)
Abstract:		"Freesia hybrida is a group of cultivars in the genus Freesia with a strong floral scent composed of diverse volatile organic compounds (VOCs). In this study, the VOCs of 34 F. hybrida were extracted and analyzed by headspace solid phase microextraction and gas chromatography mass spectrometry (HS-SPME-GC-MS). A total of 164 VOCs whose relative contents were higher than 0.05% were detected. The numbers of VOCs in all germplasms differed between 11 to 38, and the relative contents ranged from 32.39% to 94.28%, in which most germplasms were higher than 80%. Terpenoids, especially monoterpenes, were the crucial type of VOCs in most germplasms, of which linalool and D-limonene were the most frequently occurring. Principal component analysis (PCA) clearly separated samples based on whether linalool was the main component, and hierarchical clustering analysis (HCA) clustered samples into 4 groups according to the preponderant compounds linalool and (E)-beta-ocimene. Comparison of parental species and hybrids showed heterosis in three hybrids, and the inherited and novel substances suggested that monoterpene played an important role in F. hybrida floral scent. This study established a foundation for the evaluation of Freesia genetic resources, breeding for the floral aroma and promoting commercial application"
Keywords:		Acyclic Monoterpenes/*chemistry/metabolism Alkenes/*chemistry/metabolism Flowers/*chemistry/genetics/metabolism Iridaceae/*chemistry/genetics/metabolism Plant Breeding Volatile Organic Compounds/*chemistry/metabolism Freesia hybrida VOCs floral scent hete;
Notes:		"MedlineWeng, Shidan Fu, Xueqing Gao, Yu Liu, Tianlei Sun, Yi Tang, Dongqin eng Hu Nong Ke Tui Zhi (2020) no. 1-1/Shanghai Municipal Agricultural Commission/ Evaluation Study Switzerland 2021/08/08 Molecules. 2021 Jul 25; 26(15):4482. doi: 10.3390/molecules26154482"