林业科学2019，Vol.55Issue(3)：193-198,6.DOI:10.11707/j.1001-7488.20190322
印加果种子发育过程中脂肪酸的累积规律
Accumulation Characteristic of Fatty Acids during Seeds Developmental Plukenetia volubilis
摘要
Abstract
[Objective] To reveal the formation rhythm of fatty acids in Plukenetia volubilis seeds during developmental process, and provide a scientific basis for the promotion of planting area and the breeding of new varieties, in this study the accumulation characteristics of fatty acids in the seeds of P. volubilis was studied, and the fatty acid components in the seeds at different developmental stages were analyzed. [Method] The fatty acid components of 18, 36, 54, 72 to 90 DAF seeds from mature P. volubilis plant were extracted by liquid nitrogen, and the relative content of each component and their dynamic changes were analyzed by GC-MS. [Result] The results showed that 56 chemical substances, including 14 fatty acid compounds (80.13％), 7 ester compounds (2.70％), 24 alkane compounds (12.40％), 7 benzene compounds (3.96％) and 4 other compounds (0.81％), were detected and identified from P. volubilis seed during developmental process. The fatty acid compounds mainly contained 9, 12-octadecadienoic acid, 9, 12, 15-octadecatrienoic acid, hexadecanoic acid, octadecanoic acid, 9-octadecenoic acid and 16-methyl-heptadecanoic acid. With the increase of maturity, total content of fatty acid compounds increased gradually from 53.60％, 76.30％, 76.78％, 96.43％ to 97.54％. Among them, 9, 12-octadecadienoic acid, and 9, 12, 15-octadecatrienoic acid showed an increasing trend, while hexadecanoic acid, octadecanoic acid, 9-octadecenoic acid and 16-methyl-heptadecanoic acid showed a decreasing trend. [Conclusion] During the seed development of P. volubilis, the fatty acid components gradually changed from saturated fatty acid and monounsaturated fatty acid to polyunsaturated fatty acids. P. volubilis has the characters of shorter maturity and higher conversion efficiency of unsaturated fatty acid compared with other oil plants, which may be related to their high photosynthetic rate. Therefore, P. volubilis, as a strong light-required edible oil plant, is suitable cultivated in low latitudes region such as Guangdong, Guangxi Yunnan, Fujian, Hainan and Taiwan provinces, which could enrich oil plant resource and increase edible oil kinds in China.关键词
印加果/发育过程/脂肪酸/油料植物Key words
Plukenetia volubilis/development process/fatty acid/oil plant分类
农业科技引用本文复制引用
陈鸿鹏,彭彦,刘果,李慧,高丽琼,詹妮,谢耀坚..印加果种子发育过程中脂肪酸的累积规律[J].林业科学,2019,55(3):193-198,6.基金项目
广东省国际合作项目(2015A050502031) （2015A050502031）
广东省林业科技创新项目(2014KJCX016-03 （）
2017KJCX015) （）
湛江市科技计划重点项目(2015A03013) （2015A03013）
