伞形霉属3个种的脂肪酸组成初探  

Preliminary Study on Fatty Acid Composition of Umbelopsis

作　　者：宋震 吕美林 刘国红[3] 陈峥[3] 刘波[3] 刘小勇[1] SONG Zhen;LU Meilin;LIU Guohong;CHEN Zheng;LIU Bo;LIU Xiaovong(Institute of Microbiology,Chinese Academy of Sciences,Beijing 100101,China;University of Chinese Academy of Sciences,Beijing 100049,China;Agricidtural Bio-resource Institute,Fujian Academy of Agricultural Sciences,Fuzhou 350003,China)

机构地区：[1]中国科学院微生物研究所,北京100101 [2]中国科学院大学,北京100049 [3]福建省农业科学院农业生物资源研究所,福州350003

出　　处：《菌物研究》2019年第1期35-42,共8页Journal of Fungal Research

基　　金：国家自然科学基金项目(31670019;31600022)

摘　　要：伞形霉属是重要的产油真菌,本研究分析了具棱伞形霉(Umbelopsis angularis)、长白伞形霉(U.changbaiensis)和葡酒色伞形霉(U. vinacea) 36个菌株的脂肪酸组成。研究结果共检测到26种脂肪酸,链长12～20碳。特征性脂肪酸为18∶3 cis 6,12,14(十八碳三烯酸)、18∶2 cis 9,12/18∶0a(亚油酸/硬脂酸)、18∶1(w 8)/18∶1 cis 9 (w 9)(顺-10-油酸/油酸)和16∶0(十六烷酸) 4种,累计百分比为92.92%。脂肪酸/菌体生物量比值范围为0.40%～2.18%。结果表明具棱伞形霉、长白伞形霉和葡酒色伞形霉富含长链不饱和脂肪酸和重要功能性脂肪酸,具有潜在的开发价值。Umbelopsis is an important group of oil producing fungi. This study measured fatty acids on 36 strains from three representative species U. angularis,U. changbaiensis and U. vinacea. A total of 26 kinds of fatty acids were detected with the chain length varying from 12 to 20 carbons.Characteristic fatty acids were confirmed as 18 ∶ 3 cis 6,12,14,18 ∶ 2 cis 9,12/18 ∶ 0 a,18 ∶ 1( w 8)/18 ∶ 1 cis 9( w 9) and 16 ∶ 0,with a cumulative percentage of 92.92%. The yield of fatty acids was 4.00-21.80 mg per gram of dry thalli. Umbelopsis angularis,U. changbaiensis and U.vinacea are rich in long-chain unsaturated fatty acids and produce vital functional fatty acids,potential to be further exploited. This study lay a foundation for a thorough assay of fatty acid on the whole genus of Umbelopsis.

关 键 词：毛霉门 多不饱和脂肪酸 亚麻酸 二十碳二烯酸 微生物鉴定系统 

分 类 号：Q949.32[生物学—植物学] Q547