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Acta Horticulturae Sinica ›› 2023, Vol. 50 ›› Issue (4): 842-852.doi: 10.16420/j.issn.0513-353x.2021-1221

• Research Papers • Previous Articles     Next Articles

Analysis of Volatile Components from the Petal of Intersectional Hybrids of Paeonia

HOU Yixuan1,2,3, ZHANG Ling2,3,4, LÜ Mengwen2,3,5, WU Yaoxing1,2,3, WANG Liangsheng2,3,4, ZHANG Xiuqing1,*(), LI Shanshan2,3,4,*()   

  1. 1. Forestry College,Inner Mongolia Agricultural University,Hohhot 010019,China
    2. Key Laboratory of Plant Resources,Institute of Botany,Chinese Academy of Sciences,Beijing 100093,China
    3. China National Botanical Garden,Beijing 100093,China
    4. University of Chinese Academy of Sciences,Beijing 100049,China
    5. College of Landscape Architecture,Beijing Forestry University,Beijing 100083,China

Abstract:

In order to better understand the volatile compounds of intersectional hybrids of Paeonia(IHP),headspace-solidphase microextraction(HS-SPME)combined with gas chromatography-mass spectrometry(GC-MS)was used to analyze the volatiles of the petals among 19 intersectional hybrids of Paeonia cultivars. A total of 84 volatile compounds were identified,comprising of 25 terpenoids,14 benzenoids/phenylpropanoids,29 fatty acid derivatives,12 miscellaneous cyclics and four nitrogen- containing compounds. The results from quantitative analysis showed that the content of volatile compounds varied significantly among IHP cultivars. The total content of volatiles in‘Smith Family Yellow’and‘Callie’s Memory’were higher than other cultivars,which were 97.47 and 97.43 μg · g-1 · h-1,respectively. By contrast,‘Scarlet Heaven’had the lowest content,namely 8.43 μg · g-1 · h-1. Terpenoids were the main volatile components of 19 IHPs,in which β-caryophyllene and linalool were the dominant volatile components. Specifically,they were divided into five groups,in which linalool,β-caryophyllene,both β-caryophyllene and linalool,geraniol were the predominant,respectively. The remaining group emitted extremely low content of volatiles. The varied proportion of volatiles especially β-caryophyllene and linalool between IHPs played an important role in the formation of floral scent.

Key words: Paeonia, intersectional hybrids of Paeonia, HS-SPME, GC-MS, volatile compounds, terpenoids

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