The impact of tocochromanols on early seedling development and NO release

Plant seeds and fruits are the main source for tocochromanols (tocopherols and tocotrienols) collectively known as Vitamin E in human nutrition. Seeds are particularly rich in gamma-tocopherol. The reason for the abundance of gamma-tocopherol in seeds is not yet clear. We analysed the influence of e...

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Veröffentlicht in:Journal of plant physiology. - 1979. - 162(2005), 7 vom: 08. Juli, Seite 771-6
1. Verfasser: Desel, Christine (VerfasserIn)
Weitere Verfasser: Krupinska, Karin
Format: Aufsatz
Sprache:English
Veröffentlicht: 2005
Zugriff auf das übergeordnete Werk:Journal of plant physiology
Schlagworte:Journal Article Research Support, Non-U.S. Gov't Nitric Oxide 31C4KY9ESH gamma-Tocopherol 8EF1Z1238F
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520 |a Plant seeds and fruits are the main source for tocochromanols (tocopherols and tocotrienols) collectively known as Vitamin E in human nutrition. Seeds are particularly rich in gamma-tocopherol. The reason for the abundance of gamma-tocopherol in seeds is not yet clear. We analysed the influence of endogenous gamma-tocopherols on early development of seedlings from various barley cultivars. For this purpose progression of seedling development was monitored by the mean root length 48 h after imbibition. Our observations suggest that endogenous gamma-tocopherol has a negative impact on seedling development by controlling germination and postgermination events. We propose that gamma-tocopherol exerts its influence on seedling development by controlling the content of nitric oxide (NO) in germinating seeds 
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