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Characterization of selenium-enriched wheat by agronomic biofortification.

Cereals are far from being the main sources of Se on a content basis, but they are likely the major contributors to intake on a dietary basis. To assess their potential to assimilate and biotransform Se, bread and durum wheat were enriched with Se through foliar and soil addition at an equivalent field rate of...

Sequential zinc and iron biofortification of bread-wheat grains: from controlled to uncontrolled environments.

The development of knowledge on bread wheat (Triticum aestivum L.) biofortification in zinc (Zn) and iron (Fe), related to its potential agronomical use and the nutritional and technological implications, is becoming important to strategies for improving human nutrition. In this context, we studied the accumulation of Zn and Fe in grains, considering potential uptake and...

Selenium supplementation of Portuguese wheat cultivars through foliar treatment in actual field conditions.

The present paper focuses on the ability of bread and durum wheat—Triticum aestivum L. and Triticum durum Desf., respectively—to accumulate Se after supplementation via a foliar-addition procedure. in J Radioanal Nucl Chem 297 (2): 227–231. Leia o trabalho completo aqui.

Selenium determination in cereal plants and cultivation soils by radiochemical neutron activation analysis.

Cereals are by far the most significant agricultural crops, not only on a gross tonnage basis, but also by what they represent in terms of energy supply and dietary intake for human nutrition worldwide. Portugal is no exception to such pattern. The Portuguese situation is difficult to assess though, due to scarce information and lack...

Determination of selenium in bread-wheat samples grown under a Se-supplementation regime in actual field conditions.

This paper focuses on determining the ability of bread wheat to accumulate selenium after supplementation. One of the methods for supplementing this element in plants is foliar application with selenium solutions. in Journal of Radioanalytical and Nuclear Chemistry, 291: 231-235. Leia o trabalho completo aqui.

Radiotracing selenium in bread-wheat seeds for a Se-biofortification program – An optimization study in seed enrichment.

This study addresses the protocol for preparing Se-enriched wheat seeds, with the specific purpose of optimizing the administration of Se to the seeds prior to sowing. in Journal of Radioanalytical and Nuclear Chemistry, 291: 193-195. Leia o trabalho completo aqui.

Genomic reshuffling in advanced lines of hexaploid tritordeum.

Genomic restructuring was detected in newly synthesized tritordeum by molecular and cytogenetic tools. Genomic stability is expected for advanced tritordeum lines (HchHchAABB; 2n = 42) with multiple generations of self-fertilization. This study intends to confirm or decline this hypothesis by characterizing three advanced tritordeum lines and their parental species using cytogenetics, inter-simple sequence repeat (ISSR)...

Use of the synthetic Oligo-pTa535 and Oligo-pAs1 probes for identification of Hordeum chilense-origin chromosomes in hexaploid. tritordeum.

In this study, we hybridized, for the first time, the Oligo-pTa535 and Oligo-pAs1 probes on mitotic chromosomes of hexaploid tritordeum using ND-FISH. Tritordeum (HchHchAABB) is the synthetic amphiploid resultant from crosses between wild barley (HchHch) and cultivated durum wheat (AABB). in Genetic Resources and Crop Evolution 63(6):945-951. Leia o trabalho completo aqui.

Differential Physiological Responses of Portuguese Bread Wheat (Triticum aestivum L.) Genotypes under Aluminium Stress

The major limitation of cereal production in acidic soils is aluminium (Al) phytotoxicity which inhibits root growth. Recent evidence indicates that different genotypes within the same species have evolved different mechanisms to cope with this stress. With these facts in mind, root responses of two highly Al tolerant Portuguese bread wheat genotypes—Barbela 7/72/92 and Viloso...