新型植物激素独角金内酯类化合物的电喷雾傅里叶变换离子回旋共振串联质谱研究  

Study on the Novel Plant Hormone Strigolactones with ESI FTICR Tandem Mass Spectrometry

作　　者：骆丹[1,2] 辛培勇[1] 闫吉军[1,3] 房爽[1] 孙晓红[1] 闫静[2] 褚金芳[1] 闫存玉[1] 

机构地区：[1]中国科学院遗传与发育生物学研究所,国家植物基因研究中心(北京),北京100101 [2]黑龙江中医药大学药学院,黑龙江哈尔滨150040 [3]青岛科技大学化工学院,山东青岛266042

出　　处：《质谱学报》2013年第5期263-268,共6页Journal of Chinese Mass Spectrometry Society

基　　金：国家自然科学基金(90917017);中国科学院仪器设备功能开发技术创新项目(YG2010002)资助

摘　　要：利用电喷雾傅里叶变换离子回旋共振质谱仪对新型植物激素独角金内酯(SLs)中具有代表意义的3种化合物进行串联质谱表征。通过多级串联质谱分析,系统地比较了GR24、5-DS和Strigol的二级质谱图,发现D环、H2O和CO中性丢失碎裂途径是SLs类化合物的共同质谱碎裂特征;此外,SLs类化合物还能够产生ABC环自由基离子,其三级谱能够提供与AB环结构相关的丰富碎片离子信息,为将来SLs类植物激素的定性和定量研究奠定了基础。Tandem mass spectra of strigolactones （SLs）, a novel plant hormone, were stud- ied in this paper with ESI-FTICR MS. The SORI CID tandem spectra of GR 24, 5-DS and Strigol were compared systemically. The neutral losses of D ring, H2O and CO were the common dissociation pathway for all the SLs. Besides, the odd-electon daughter ion [ABC ＋H]＋ from [M＋H]＋ can be dissociated for further dissociation, which bring more de- tailed structure information on the AB ring of SLs. The results are meaningful for qualitita- tive and quantitative analysis of SLs in plants with mass spectrometry in the future.

关 键 词：独角金内酯(SLs) 傅里叶变换离子回旋共振质谱仪 串联质谱 内酯 

分 类 号：O657.63[理学—分析化学]