Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

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Record number 497426
Title Variation in accumulation of isoflavonoids in Phaseoleae seedlings elicited by Rhizopus
Author(s) Aisyah, Siti; Gruppen, Harry; Andini, Silvia; Bettonvil, Monique; Severing, Eduard; Vincken, Jean Paul
Source Food Chemistry 196 (2016). - ISSN 0308-8146 - p. 694 - 701.
DOI https://doi.org/10.1016/j.foodchem.2015.09.110
Department(s) Food Chemistry Group
Groep KoornneefGroep Koornneef
Publication type Refereed Article in a scientific journal
Publication year 2016
Keyword(s) Flavonoid - Germination - Mass spectrometry - Phylogenetic relationship - Phytoalexin - Prenylation
Abstract

Seeds from seven species of tribe Phaseoleae, i.e. Phaseolus, Vigna, Lablab and Psophocarpus, were investigated for inducibility of isoflavonoids by germination with or without subsequent elicitation with Rhizopus oryzae. Germination alone poorly induced isoflavonoid production (in the range of 0.2-0.7 mg representative compound equivalents (RCE)/g DW), whereas application of Rhizopus onto the seedlings increased the isoflavonoid content considerably (in the range of 0.5-3.3 mg RCE/g DW). The inducibility of different isoflavonoid subclasses in seedlings with Rhizopus varied per species. Isoflavones and isoflavanones were mainly found in elicited seedlings of Phaseolus, Vigna and Lablab, whereas pterocarpans were mainly observed in those of Psophocarpus. Despite their phylogenetic relatedness, the seeds of various species within Phaseoleae appeared to respond differently towards elicitation by Rhizopus during germination. The kind of molecules induced followed the phylogenetic relationship of the various species, but their amounts induced during germination, alone or combined with elicitation, did not.

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