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Descripción
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| Numerous useful species belong to the Brassicaceae: vegetables, oleaginous, condiments ? There is increasing interest in this family due to an antitumor activity of glucosinolates and isothiocyanates from these plants. The family comprises over 3,500 species and many remain unexplored, but could have a direct potential use or may serve as a source of genes for cultivated plants. In order to conserve this remarkable germplasm, long-term seed storage is crucial to develop plant ex situ conservation strategies. Water content and temperature are critical factors contributing to seed longevity during storage. The effect of water content on seed ageing was studied for a storage period up to eight years in seven (wild and cultivated) species. Seeds were stored at different environments comprising a factorial combination of temperatures and eight water contents. Storage temperatures ranged from 45ºC to ca. -170ºC. Seed longevity showed high variability among species. Extreme desiccation at 45ºC showed damaging effects to seed longevity for some species, while for others no effect was detected. Lipid content could be related to longevity, but only in some storage conditions. The relative longevity of a species at high water contents did not correlate with that observed at low water contents. The relative position of some of the species as long- or short-lived varied depending on the humidity at which the storage behaviour was evaluated. Therefore, predictions of survival under desiccated conditions based on results obtained at high humidity might be problematic for some species. | |
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Internacional
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Si |
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Nombre congreso
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State of the World''''s Plant Symposium |
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Tipo de participación
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970 |
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Lugar del congreso
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London, UK |
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Revisores
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Si |
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ISBN o ISSN
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0000-0000 |
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DOI
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Fecha inicio congreso
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10/05/2016 |
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Fecha fin congreso
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12/05/2016 |
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Desde la página
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39 |
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Hasta la página
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39 |
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Título de las actas
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State of the World''''s Plant Symposium |