作者:Philips O. Akinwole、Emilie Lefevre、Martha J. Powell、Robert H. Findlay
DOI:10.1007/s11745-014-3934-3
日期:2014.9
Chytrid fungi are ubiquitous components of aquatic and terrestrial ecosystems yet they remain understudied. To investigate the use of phospholipid fatty acids as phenotypic characteristics in taxonomic studies and biomarkers for ecological studies, 18 chytrid fungi isolated from soil to freshwater samples were grown in defined media and their phospholipid fatty acid profile determined. Gas chromatographic/mass
壶菌属真菌是水生和陆地生态系统的普遍组成部分,但仍未得到充分研究。为了研究在分类学研究和生态学生物标志物中磷脂脂肪酸作为表型特征的用途,从土壤到淡水样品中分离出的18种糜蛋白酶在确定的培养基中生长,并确定其磷脂脂肪酸谱。气相色谱/质谱分析表明存在通常与真菌相关的脂肪酸,例如16:1(n-7),16:0、18:2(n-6),18:3(n-3)18 :1(n-9)和18:0,以及许多奇链长脂肪酸,包括两种多不饱和C-17脂肪酸。转化为其3-吡啶基甲醇酯有助于GC-MS测定双键位置,这些脂肪酸被鉴定为6,9-17:2 [17:2(n-8)]和6,9,12-17: 3 [17:3(n-5)]。据我们所知,这是从乳糜真菌的磷脂中分离出的多不饱和C-17脂肪酸的首次报道。PLFA分布图的聚类分析显示,与chytrid系统发育具有足够的相关性,可以在物种描述中包括脂质分析,并且某些系统发育分布受限的磷脂