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Issue:ISSN 2095-1353
           CN 11-6020/Q
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Your Position :Home->Past Journals Catalog->2016年53 No.3

Variation in tea-plant volatiles induced by exogenous application ofdifferent concentrations of methyl jasmonate
Author of the article:SUN Xiao-Ling1, 2** DONG Wen-Xia3 CAI Xiao-Ming1, 2GUI Lian-You4 CHEN Zong-Mao1, 2**
Author's Workplace:1. Institute of Tea Research, Chinese Academy of Agricultural Sciences, Hangzhou 310008, China; 2. Key Laboratory of Tea Biology and Resources Utilization, Ministry of Agriculture, Hangzhou 310008, China; 3. Yunnan Agricultural University, Kunming, 650201 China; 4. Yangtze University, Jingzhou 434023, China
Key Words:exogenous, methyl jasmonate, induce, camelia senesis, volatile, timing variation
Abstract:

[Objectives]  To clarify the effect of exogenous application of methyl jasmonate on the emission of volatile chemicals from Camellia sinesis. [Methods]  The headspace sampling method was used to extract volatiles from tea plants in vivo that had been treated with different concentrations of methyl jasmonate. A gas chromatograph mass spectrometer (GS-MS) system was then used to identify the volatiles extracted from the tea plants. [Results] The results show that the composition and quantity of tea volatiles was affected by the concentration of methyl jasmonate applied to plants. Plants treated with 50 mL of methyl jasmonate emitted 10 monoterpenoids, including myrcene, terpinoloene, ocimeneetc; 7 sesquiterpenoids, including farnesene, nerolidol, bisaboleneetc; 5 amino acid derivatives, including benzyl alcohol, phenylacetonitrile, and indole; and 3 unknown compounds. However, treatment with 100 mL of methyl jasmonate only induced the emission of 7 volatiles. Different volatiles were emitted at different times following methyl jasmonate treatment. However, emissions of all volatiles tended to be higher during the day than at night. Moreover, the quantity of volatiles emitted was affected by the intensity of illumination. [Conclusion]  Exogenous application of methyl jasmonate can induce the production and emission of tea plant volatiles.

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