Abstract
Fructooligosaccharides (FOS) have received a great deal of attention for their properties as prebiotic components. Several plants store FOS in their tissues as carbohydrate source or as osmoregulators. In comparison with the other natural FOS sources, cereals, in particular durum wheat, store a significant amount of these oligosaccharides during their growth. To gain a deeper insight on the relationships between FOS and plant/kernel development, FOS levels were analysed in the grains and stems of a widely cultivated durum wheat cultivar (Simeto), during the whole period of grain filling. In addition, a broad analysis of FOS contents was carried out by comparing their levels in the stems and grains of 45 cultivars of durum wheat harvested at two development stages. Results show a large variation among cultivars in their capability to metabolise FOS.
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