Influence of zinc hyperaccumulation on glucosinolates in Thlaspi caerulescens
• Previous investigations suggest that in species of the Brassicaceae hyperaccumulation of heavy metals might provide an ecological advantage by protecting the plants against herbivores and/or pathogens while lowering the glucosinolate content. Few analytical data on glucosinolate concentrations in...
| Veröffentlicht in: | The New phytologist. - 1979. - 151(2001), 3 vom: 28. Sept., Seite 621-626 |
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| 1. Verfasser: | |
| Weitere Verfasser: | , , , |
| Format: | Online-Aufsatz |
| Sprache: | English |
| Veröffentlicht: |
2001
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| Zugriff auf das übergeordnete Werk: | The New phytologist |
| Schlagworte: | Journal Article Hyperaccumulation Thlaspi caerulescens glucosinolate sinalbin zinc |
| Zusammenfassung: | • Previous investigations suggest that in species of the Brassicaceae hyperaccumulation of heavy metals might provide an ecological advantage by protecting the plants against herbivores and/or pathogens while lowering the glucosinolate content. Few analytical data on glucosinolate concentrations in hyperaccumulators are available for supporting this 'trade-off' hypothesis. • This is the first report on the influence of zinc (Zn) hyperaccumulation on the concentrations of individual glucosinolates in Thlaspi caerulescens exposed to different Zn concentrations. • The most abundant glucosinolate within both roots and shoots was p-hydroxybenzyl glucosinolate (sinalbin). Zn hyperaccumulation decreased sinalbin concentrations in shoots, whereas root concentrations increased with Zn accumulation. These changes in sinalbin concentrations were mainly responsible for Zn-induced alterations of total glucosinolate contents. Quantitatively less important was a Zn-induced decrease of indolylglucosinolates observed in both roots and shoots and that of 3-butenylglucosinolate found in roots. • The results presented here support the view of a trade-off between Zn and glucosinolates in shoots but not in roots of Thlaspi caerulescens |
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| Beschreibung: | Date Revised 15.04.2021 published: Print Citation Status PubMed-not-MEDLINE |
| ISSN: | 1469-8137 |
| DOI: | 10.1046/j.0028-646x.2001.00221.x |