Sulfur is limiting the glucosinolate accumulation in nasturtium <em>in vitro</em> plants (<em>Tropaeolum majus</em> L.)
It is well established that sulfate fertilisation significantly enhances the content of mustard oil glucosides in glucosinolate containing plants. However, with respect to tissue cultures and in vitro-plants, corresponding data are missing. In this study the influence of sulfur on the accumulation o...
| Main Authors: | , , |
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| Format: | Article |
| Language: | English |
| Published: |
Julius Kühn-Institut
2012-12-01
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| Series: | Journal of Applied Botany and Food Quality |
| Online Access: | https://ojs.openagrar.de/index.php/JABFQ/article/view/2182 |
| Summary: | It is well established that sulfate fertilisation significantly enhances the content of mustard oil glucosides in glucosinolate containing plants. However, with respect to tissue cultures and in vitro-plants, corresponding data are missing. In this study the influence of sulfur on the accumulation of glucosinolates was analyzed in nasturtium in vitro-plants (Tropaeolum majus). The glucotropaeolin content in plants grown on standard media (MS) varied between 10 and 50 μmol/g DW, corresponding to only about 20 % to 70 % of the glucotropaeolin content in earth grown plants. A fivefold enhancement of the sulfate concentration resulted in a massive increase in the glucotropaeolin content of the in vitro-plants. A decline of sulfate in the medium leads to corresponding diminutions of the glucosinolates accumulated. These data clearly demonstrate the high impact of sulfur availability on glucosinolate biosynthesis and accumulation. |
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| ISSN: | 1613-9216 1439-040X |