Biofortification strategies to increase grain zinc and iron concentrations in wheat

Govindan, Velu; Ortiz-Monasterio, Iván; Çakmak, İsmail; Hao, Yuanfeng; Singh, Ravi P.

doi:10.1016/j.jcs.2013.09.001

Cited by 384 publications

(298 citation statements)

References 73 publications

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“…For all groups treated with micronutrient fertilizers, in biological and mineral form, better plant vigour was observed. This confirmed that increased micronutrient fertilization (particularly with Zn(II)) can affect seed vitality and vigour of plants [25].…”

Section: Yield Propertiessupporting

confidence: 66%

Biofortification of maize with micronutrients by Spirulina

et al. 2015

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Abstract:The aim of the present work was to examine the effect of the application of Spirulina platensis post-extraction residues enriched with Zn(II), Mn(II), Cu(II) via biosorption as micronutrient fertilizer for the biofortification of maize grains with micronutrients in field tests. As a nominal dose 2.5 kg ha -1 of zinc, 1.0 kg ha -1 of manganese and 0.5 kg ha -1 of copper were applied. The preparation was applied also in higher doses (150%, 200%) to investigate agronomic biofortification of maize grains. In field trials, obtained grain yield (7.2 Mg ha -1 for Spirulina 100%) was higher than in control group (6.2 Mg ha -1 ) and commercial reference product (6.6 Mg ha -1 ). For the same dose of micronutrients, their bioavailability was higher for bio-preparations than for reference fertilizer. The highest content of micronutrients delivered to plants (2.15 mg kg -1 -Cu, 7.07 mg kg -1 -Mn, 29.0 mg kg -1 -Zn) was observed for maize grains fertilized with preparation of Spirulina 150%, which signifies that biofortified maize grain was obtained. Corn grains biofortified with micronutrients can be used as staple food or feed preventing from micronutrient malnutrition. The application of micronutrient biocomponents based on Spirulina biomass allows to manufacture a valuable fertilizer with bioavailable micronutrients.

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Section: Yield Propertiessupporting

confidence: 66%

Biofortification of maize with micronutrients by Spirulina

et al. 2015

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“…While no differences between groups were reported for plant height and root length, the analysis of the vigor of plants showed that plants treated with any type of micronutrient fertilizers were characterized by better vigor. This observation confirmed the statement that increased micronutrient fertilization (especially zinc fertilization), positively, affected seed vitality and vigor of plants [7].…”

Section: Discussionsupporting

confidence: 89%

“…Micronutrient fertilization was shown to be the most common and most efficient way of micronutrient application to plants, and it was proved to be an effective tool for the agronomic biofortification of grains of maize, wheat etc. [7]. Increased content of micronutrients in grains was shown after soil application, foliar spraying as well as the combination of these two ways of fertilization [8].…”

Section: Introductionmentioning

confidence: 99%

Biofortification of maize grains with micronutrients by enriched biomass of blackcurrant seeds

et al. 2015

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Effect of the application of blackcurrant seed post-extraction residues (BS) enriched via biosorption with Zn(II), Mn(II) and Cu(II) was examined in field tests on maize. As a nominal dose (100%), 2.5 kg of zinc, 1 kg of manganese and 0.5 kg of copper per hectare, were applied. The preparation was applied, also, in higher doses (150%, 200%).Crop yield and quality were assessed and multielemental analysis of grains was conducted. Grain yield obtained for maize treated with different doses of micronutrients (7.3 and 7.2 Mg ha -1 for BS 100% and BS 200%, respectively) was higher than in control group (6.2 Mg ha -1 ) and similar to a commercial reference product (7.1 Mg ha -1 ).Bioavailability of micronutrients from BS was shown to be higher than from reference commercial fertilizer. The highest content of micronutrients delivered to plants was observed for groups fertilized with BS in nominal dose of micronutrients (1.79, 7.08 and 28.55 mg kg -1 for Cu, Mn and Zn, respectively). The content of each micronutrient was 5.6% (Cu) 12.1% (Mn) and 12.6% (Zn) higher than in untreated group and 8.9% (Cu) 9.7% (Mn) and 8.7% (Zn) higher than commercial reference micronutrient fertilizer. New biocomponents are cheap and biodegradable carriers of nutrients which can be released in controlled way.

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“…Not only grain Fe and Zn concentrations displayed the very close positive correlation in a number of germplasm resources, but also they had some same characteristics like significant positive correlation with grain protein content, as well as negative correlation with the traits of glutenin content, plant height and grain number per m 2 (Oury et al 2006;Morgounov et al 2007). Hence, it was inferred that physiological and genetic factors involved in Zn and Fe deposition in the seeds are same or very similar, or the alleles for Zn and Fe deposition in the grain co-segregate or pleiotropic (Velu et al 2014). In the present research, the grain Zn concentration was significantly related to the agronomic traits such as plant height and number of spikelets per plant of T. timopheevii ssp.…”

Section: Discussionsupporting

confidence: 46%

Zn and Fe concentration variations of grain and flag leaf and the Relationship with NAM-G1 Gene in Triticum timopheevii (Zhuk.) Zhuk. ssp. timopheevii

Liu

Zhang

et al. 2017

Cereal Research Communications

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Grains of 12 accessions of Triticum timopheevii (Zhuk.) Zhuk. ssp. timopheevii (AAGG, 2n = 4x = 28) and one bread wheat cultivar Chinese Spring (CS) and one durum wheat cultivar Langdon (LDN) grown across two years were analyzed for grain iron (Fe) and zinc (Zn) concentrations. All the 12 tested T. timopheevii ssp. timopheevii genotypes showed significantly higher concentration of grain Fe and Zn than CS and LDN. Aboundant genetic variability of both the Fe and Zn concentrations was observed among the T. timopheevii ssp. timopheevii accessions, averagely varied from 47.06 to 90.26 mg kg -1 and from 30.05 to 65.91 mg kg -1 , respectively. Their grain Fe and Zn concentrations between years exhibited a significantly positive correlation with the correlation coefficients r = 0.895 and r = 0.891, respectively, indicating the highly genetic stability. Flag leaf possessed twice or three times higher concentrations for both Fe and Zn than grain, and a significantly high positive correlation appeared between the two organs with r = 0.648 for Fe and r = 0.957 for Zn concentrations, respectively, suggesting flag leaves might be indirectly used for evaluating grain Zn and Fe contents. Significant correlations occurred between grain Fe and Zn concentrations, and between grain Zn concentration and the two agronomic traits of plant height and number of spikelets per spike. Both the concentrations were not related to seed size or weight as well as NAM-G1 gene, implying the higher grain Fe and Zn concentrations of T. timopheevii ssp. timopheevii species are not ascribed to concentration effects of seed and the genetic control of NAM-G1 gene. There might be some other biological factors impacting the grain's Zn and Fe concentrations. These results indicated T. timopheevii ssp. timopheevii species might be a promising genetic resource with high Fe and Zn concentrations for the biofortification of current wheat cultivars. Keywords IntroductionIt has been reported that micronutrient malnutrition, particularly deficiencies in Fe and Zn, afflicts a very large proportion of the world's people. The World Health Organization estimated that more than 2 billion people have deficiencies in Zn and Fe, resulting in overall poor health, anemia, increased morbidity and mortality rates, and low worker productivity (Hotz and Brown 2004;Welch and Graham 2004;Bouis 2007;Cakmak 2008;Salim-Ur-Rehman et al. 2010). Currently, the phenomena which are termed "hidden hunger" (FAO 2002), generally occur in developing countries, where most people rely on cereal grain as their staple food.Bread wheat (Triticum aestivum L.) is one of the most important staple food crops, providing 28% of world's edible dry matter (Cakmak 2008). So, the composition and nutritional quality of wheat grain have a significant impact on human health and wellbeing worldwide (Chatzav et al. 2010;Wang et al. 2011). In the past, a great effort has been made for improving wheat grain yield and resistance to leaf diseases (He et al. 2004). However, little attention was given to microm...

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Biofortification strategies to increase grain zinc and iron concentrations in wheat

Cited by 384 publications

References 73 publications

Biofortification of maize with micronutrients by Spirulina

Biofortification of maize with micronutrients by Spirulina

Biofortification of maize grains with micronutrients by enriched biomass of blackcurrant seeds

Zn and Fe concentration variations of grain and flag leaf and the Relationship with NAM-G1 Gene in Triticum timopheevii (Zhuk.) Zhuk. ssp. timopheevii

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