Effects of Methyl Jasmonate on the Composition of Volatile Compounds in Pyropia yezoensis
Effects of Methyl Jasmonate on the Composition of Volatile Compounds in Pyropia yezoensis作者机构:Department of Cell BiologyMedical College of Soochow UniversitySuzhou 215006China Institute of Biochemistry and Cell BiologyShanghai Institutes for Biological SciencesChinese Academy of SciencesShanghai 200031China Shanxi Academy of Environmental ResearchTaiyuan 030027China
出 版 物:《Journal of Ocean University of China》 (中国海洋大学学报(英文版))
年 卷 期:2018年第17卷第2期
页 面:291-296页
核心收录:
基 金:supported by a grant from the PhD fellowship program of Soochow University the National Natural Science Foundation of China(No.41276134)
主 题:Pyropia yezoensis methyl jasmonate volatile compounds flavor
摘 要:Volatile organic compounds in marine algae have been reported to comprise characteristic flavor of algae and play an important role in their growth, development and defensive response. Yet their biogeneration remain largely unknown. Here we studied the composition of volatile compouds in Pyropia yezoensis and their variations in response to methyl jasmonate(MeJA) and diethyldithiocarbamic acid(DIECA) treatment using gas chromatography-mass spectrometry(GC-MS). A total of 44 compounds belonging to the following chemical classes(n) were identified, including aldehydes(11), alcohols(8), acids and esters(6), alkanes(5), ketones(5), alkenes(3), and S-or N-containing miscellaneous compounds(6). External treatment with plant hormone MeJA increased the content of 1-dodecanol, 4-heptenal, and 2-propenoic acid-2-methyl dodecylester, but decreased the content of phytol, 3-heptadecene, 2-pentadecanone, and isophytol. When pretreated with DIECA, an inhibitor of the octadecanoid pathway leading to the biosynthesis of endogeneous jasmonates and some secondary metabolites, phytol and isophytol were increased, while 4-heptenal, 1-dodecanol, and 2-propenoic acid-2-methyl dodecylester were decreased, both of which were negatively correlated with their variations under MeJA treatment. Collectively, these results suggest that MeJA does affect the volatile composition of P. yezoensis, and the octadecanoid pathway together with endogenous jasmonate pathway may be involved in the biosynthesis of volatile compounds, thereby providing some preliminary envision on the composition and biogeneration of volatile compounds in P. yezoensis.