The fatty acid composition of the temperate calcareous marine sponge Leuconiajohnstoni Carter 1871 (Calcaronea, Calcarea) was characterized for the first time in specimens collected off the Brittany coast of France over four years from October 2005 to September 2008. Forty‐one fatty acids (FA) with chain lengths ranging from C14 to C22 were identified as fatty methyl esters (FAME) and N‐acyl pyrrolidide
从2005年10月至2008年9月的四年中,在法国布列塔尼海岸附近采集的标本中,首次鉴定了温带钙质海洋海绵Leuconia johnstoni Carter 1871(Calcaronea,Calcarea)的脂肪酸组成。41种脂肪酸(通过气相色谱-质谱法(GC-MS)将链长在C 14至C 22之间的FA)鉴定为脂肪甲酯(FAME)和N-酰基吡咯烷化物(NAP)衍生物。确定了22种饱和脂肪酸(SFA),占FA和二甲基乙缩醛(DMA)总量的52.1–59.0%。此外,在SFA中,我们注意到存在许多甲基支链的iso和anteisoFA,提示约翰逊乳杆菌中存在大量相关细菌。还鉴定了13种单不饱和脂肪酸(MUFA,占总FA + DMA的28.0–36.0%)以及6种多不饱和脂肪酸(PUFA,占4.0-8.2%)。在高水平检测到明显的DMA,尤其是在2008年9月(11.8%),表明该海绵物种中存在