PMID- 29525124 OWN - NLM STAT- MEDLINE DCOM- 20180521 LR - 20181202 IS - 1873-3778 (Electronic) IS - 0021-9673 (Linking) VI - 1546 DP - 2018 Apr 20 TI - Sensitive determination of brassinosteroids by solid phase boronate affinity labeling coupled with liquid chromatography-tandem mass spectrometry. PG - 10-17 LID - S0021-9673(18)30256-5 [pii] LID - 10.1016/j.chroma.2018.02.058 [doi] AB - Brassinosteroids (BRs) are regarded as the sixth plant hormone that is widely distributed in the plant kingdom. Sensitive quantification of BRs will be greatly benefit to illuminate the detail mechanisms about how BRs play crucial role in plant developmental processes such as cell division, cell expansion, cytodifferentiation, seed germination, vegetative growth and resisting biological or abiotic stress. In the current study, we developed a method for rapid and sensitive determination of endogenous BRs in plant tissues by combining LC-MS and a novel sample preparation strategy, in which the plant tissue extract was supplied to solid phase boronate affinity labeling and extraction, followed by desorption and salt-induced phase transition extraction for further purification. Under the optimized conditions, good linearity was obtained for 6 BR with correlation coefficients (r) ranging from 0.9988 to 0.9999. The limits of detection (LODs, S/N = 3) ranged from 1.4 to 2.8 pg mL(-1). The recoveries were between 93.4% and 116.2% with the relative standard deviations (RSDs) ranging from 2.8% to 15.8%. Finally, the developed method was successfully applied to the analysis of 6 endogenous BR in various plant tissues including 20 mg FW Oryza sativa shoot, 10 mg FW Oryza sativa root, 20 mg FW Arabidopsis thaliana shoot, 4 Arabidopsis thaliana flowers (2.8 mg) and one Brassica napus stamen (3.0 mg) with concentration ranging from 0.26 to 157.28 ng g(-1) FW. CI - Copyright (c) 2018 Elsevier B.V. All rights reserved. FAU - Luo, Xiao-Tong AU - Luo XT AD - Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, China. FAU - Cai, Bao-Dong AU - Cai BD AD - Wuhan Greensword Creation Technology Co., Ltd, Wuhan 430075, China. FAU - Yu, Lei AU - Yu L AD - Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, China. FAU - Ding, Jun AU - Ding J AD - Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, China. FAU - Feng, Yu-Qi AU - Feng YQ AD - Key Laboratory of Analytical Chemistry for Biology and Medicine (Ministry of Education), Department of Chemistry, Wuhan University, Wuhan 430072, China. Electronic address: yqfeng@whu.edu.cn. LA - eng PT - Journal Article DEP - 20180228 PL - Netherlands TA - J Chromatogr A JT - Journal of chromatography. A JID - 9318488 RN - 0 (Affinity Labels) RN - 0 (Boronic Acids) RN - 0 (Brassinosteroids) RN - 0 (Isoquinolines) RN - 0 (Plant Extracts) RN - 0 (Plant Growth Regulators) SB - IM MH - Affinity Labels/*chemistry MH - Boronic Acids/*chemistry MH - Brassica napus/chemistry MH - Brassinosteroids/*analysis/chemistry MH - Chromatography, High Pressure Liquid/*methods MH - Isoquinolines/chemistry MH - Limit of Detection MH - Plant Extracts/chemistry MH - Plant Growth Regulators/chemistry MH - Reproducibility of Results MH - Signal Processing, Computer-Assisted MH - Solid Phase Extraction/*methods MH - Tandem Mass Spectrometry/*methods OTO - NOTNLM OT - Brassinosteroids OT - Mass spectrometry OT - Salt-induced phase transition extraction OT - Solid phase boronate affinity labeling EDAT- 2018/03/12 06:00 MHDA- 2018/05/22 06:00 CRDT- 2018/03/12 06:00 PHST- 2018/01/09 00:00 [received] PHST- 2018/02/21 00:00 [revised] PHST- 2018/02/27 00:00 [accepted] PHST- 2018/03/12 06:00 [pubmed] PHST- 2018/05/22 06:00 [medline] PHST- 2018/03/12 06:00 [entrez] AID - S0021-9673(18)30256-5 [pii] AID - 10.1016/j.chroma.2018.02.058 [doi] PST - ppublish SO - J Chromatogr A. 2018 Apr 20;1546:10-17. doi: 10.1016/j.chroma.2018.02.058. Epub 2018 Feb 28.