Biofortification of durum wheat (Triticum turgidum L. ssp. durum (Desf.) Husnot) grains with nutrients. Issue 1 (1st January 2017)

• Record Type: Journal Article
• Authors: Pataco, Inês Maria; Lidon, Fernando Cebola; Ramos, Inês; Oliveira, Karliana; Guerra, Mauro; Pessoa, Maria Fernanda; Carvalho, Maria Luísa; Ramalho, José Cochicho; Leitão, António Eduardo; Santos, José Paulo; Campos, Paula Scotti; Silva, Maria Manuela; Pais, Isabel P.; Reboredo, Fernando Henrique
• Is Part Of: Journal of plant interactions. Volume 12:Issue 1(2017)
• Page Start: 39
• Page End: 50
• Publication Date: 2017-01-01
• Subjects: Biofortification -- durum wheat -- mineral kinetics -- nutrients accumulation; Plant ecophysiology -- Periodicals; Plants -- Periodicals; Toxins -- Periodicals; 581.7
• DOI: 10.1080/17429145.2016.1278049
• Languages: English
• ISSNs: 1742-9145

Abstract

ABSTRACT: Durum wheat ( Triticum turgidum L. ssp. durum (Desf.) Husnot) was grown under conditions to promote mineral biofortification at the grain level. Along plant development, biomass accumulation and the kinetics of nutrients accumulation were assessed, identifying the nutrient fluxes of roots and shoots, and the timescale constraints of crop biofortification. Plants were grown under environmentally controlled conditions, submitted to four increasing concentrations of nutrient solutions (1-, 2-, 4- and 6-fold) of micro- (Fe, Zn, Cu and Mn) and macronutrients (Ca, K, P and Mg). The threshold of mineral toxicity was not reached as evaluated through plant biomass accumulation, but considering grain yield, the twofold nutrient concentration was the best treatment for biofortification. In the different treatments, the contents and the mineral unrests of roots uptake and shoots translocation varied, at different magnitudes and trends, before the onset of booting and from the physiological maturity onwards. Except for Cu, all mineral nutrients were mainly detected in the bran and embryo of the grains; therefore, the production of biofortified pasta for human consumption requires the use of integral semolina.