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Ultrahigh-Performance Liquid Chromatography–Mass Spectrometry Analysis of Carotenoid-Derived Hormones and Apocarotenoids in Plants

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Ultrahigh-Performance Liquid Chromatography–Mass Spectrometry Analysis of Carotenoid-Derived Hormones and Apocarotenoids in Plants

by Jianing Mi, Kit Xi Liew, Salim Al-Babili
Scientific Year: 2022 DOI: 10.1002/cpz1.375

Abstract

Carotenoid oxidative cleavage products, apocarotenoids (APOs), are a class of important plant secondary metabolites, which include phytohormones abscisic acid (ABA) and strigolactones (SLs), and growth regulators and signaling molecules such as β-cyclocitral, zaxinone, anchorene, β-apo-11-carotenoids, and retinal. Qualitative and quantitative analysis of these bioactive compounds is crucial for understanding their metabolism and may also enable discovering further regulatory APOs. The state-of-the-art mass spectrometry (MS) technology has advanced the detection of plant APOs; however, it is still challenging to perform an accurate analysis of the low-level phytohormones ABA and SL and the structurally diverse APOs from complex plant matrices. Here, we describe ultrahigh-performance liquid chromatography-MS (UHPLC-MS) methods to determine carotenoid-derived hormones and APOs from plants by integrating ultrasound-assisted extraction and solid-phase extraction. These assays enable an accurate quantification of carotenoid-derived hormones and APOs from plant tissues by using an UHPLC hybrid quadrupole-Orbitrap mass spectrometer. © 2022 Wiley Periodicals LLC.


Keywords

abscisic acid apocarotenoids rice root solid-phase extraction strigolactones ultrasound-assisted extraction ultra-high performance liquid chromatography-mass spectrometry
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