期刊
JOURNAL OF SEPARATION SCIENCE
卷 39, 期 10, 页码 1804-1813出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/jssc.201501239
关键词
Electrospray ionization tandem mass spectrometry; High-performance liquid chromatography; Phytohormones; Sargassum horneri
资金
- China Spark Program of National Ministry of Science and Technology [2015GA701001]
- Open Fund of Zhejiang Provincial Top Key Discipline of Aquaculture in NingboUniversity [xkzsc1420]
- K.C. Wong Magna Fund in Ningbo University
Phytohormones have attracted wide attention due to their important biological functions. However, their detection is still a challenge because of their complex composition, low abundance and diverse sources. In this study, a novel method of high-performance liquid chromatography with electrospray ionization tandem mass spectrometry was developed and validated for the simultaneous determination of ten phytohormones including indole-3-acetic acid, isopentenyladenine, isopentenyl adenosine, trans-zeatin riboside, zeatin, strigolactones, abscisic acid, salicylic acid, gibberellin A3, and jasmonic acid in Sargassum horneri (S. horneri). The phytohormones were extracted from freeze-dried S. horneri with methanol/water/methanoic acid (15:4:1, v/v/v) analyzed on a Hypersil Gold C-18 column and detected by electrospray ionization tandem triple quadrupole mass spectrometry in the multiple reaction monitoring mode. The experimental conditions for the extraction and analysis of phytohormones were optimized and validated in terms of reproducibility, linearity, sensitivity, recovery, accuracy, and stability. Distributions of the phytohormones in the stems, blades, and gas bladder of the S. horneri in drift, fixed, and semi-fixed growing states were investigated for the first time. The observed contents of the phytohormones in S. horneri range from not detected to 5066.67 ng/g (fresh weight). Most phytohormones are distributed mainly in the stems of S. horneri in drift and semi-fixed states.
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