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Modulation of Glucosinolate Composition in Brassicaceae Seeds by Germination and Fungal Elicitation.


ABSTRACT: Glucosinolates (GSLs) are of interest for potential antimicrobial activity of their degradation products and exclusive presence in Brassicaceae. Compositional changes of aliphatic, benzenic, and indolic GSLs of Sinapis alba, Brassica napus, and B. juncea seeds by germination and fungal elicitation were studied. Rhizopus oryzae (nonpathogenic), Fusarium graminearum (nonpathogenic), and F. oxysporum (pathogenic) were employed. Thirty-one GSLs were detected by reversed-phase ultrahigh-performance liquid chromatography photodiode array with in-line electrospray ionization mass spectrometry (RP-UHPLC-PDA-ESI-MSn). Aromatic-acylated derivatives of 3-butenyl GSL, p-hydroxybenzyl GSL, and indol-3-ylmethyl GSL were for the first time tentatively annotated and confirmed to be not artifacts. For S. alba, germination, Rhizopus elicitation, and F. graminearum elicitation increased total GSL content, mainly consisting of p-hydroxybenzyl GSL, by 2-3 fold. For B. napus and B. juncea, total GSL content was unaffected by germination or elicitation. In all treatments, aliphatic GSL content was decreased (?50%) in B. napus and remained unchanged in B. juncea. Indolic GSLs were induced in all species by germination and nonpathogenic elicitation.

SUBMITTER: Andini S 

PROVIDER: S-EPMC6873265 | biostudies-literature | 2019 Nov

REPOSITORIES: biostudies-literature

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Modulation of Glucosinolate Composition in Brassicaceae Seeds by Germination and Fungal Elicitation.

Andini Silvia S   Dekker Pieter P   Gruppen Harry H   Araya-Cloutier Carla C   Vincken Jean-Paul JP  

Journal of agricultural and food chemistry 20191111 46


Glucosinolates (GSLs) are of interest for potential antimicrobial activity of their degradation products and exclusive presence in Brassicaceae. Compositional changes of aliphatic, benzenic, and indolic GSLs of <i>Sinapis alba</i>, <i>Brassica napus</i>, and <i>B. juncea</i> seeds by germination and fungal elicitation were studied. <i>Rhizopus oryzae</i> (nonpathogenic), <i>Fusarium graminearum</i> (nonpathogenic), and <i>F. oxysporum</i> (pathogenic) were employed. Thirty-one GSLs were detected  ...[more]

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