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Arbuscular mycorrhizal fungal inoculation and soil zinc fertilisation affect the productivity and the bioavailability of zinc and iron in durum wheat.
Mycorrhiza. 2019 Oct; 29(5):445-457.M

Abstract

There is a growing recognition of the role of arbuscular mycorrhizal fungi (AMF) in food security, specifically the potential for AMF to enhance the yield and mineral nutrition-including phosphorus, zinc (Zn), and iron (Fe)-of food crops. However, the bioavailability of Zn and Fe for humans in the grain of cereal crops can be overestimated by failing to consider the abundance of phytic acid (PA). This is because PA can chelate the micronutrients, making them difficult to absorb. In order to understand the effect of an AM fungus and soil Zn concentration on the productivity and nutritional quality of food parts, this study examined the growth and nutritional responses of durum wheat, with and without inoculation with Rhizophagus irregularis, at five soil Zn concentrations. Growth and nutrient responses of the plants to soil Zn amendment was stronger than responses to AMF. However, the protective effect of AMF under soil Zn toxicity conditions was observed as reduced Zn concentration in the mycorrhizal durum wheat grain at Zn50. Here, AMF inoculation increased the concentration of PA in durum wheat grain but had no effect on the concentration of Zn and Fe; this consequently reduced the predicted bioavailability of grain Zn and Fe, which could lead to a decrease in nutritional quality of the grain. This research suggests that in soil with low (available) phosphorus and Zn concentrations, AMF may reduce the food quality of durum wheat because of an increase in PA concentration, and thus, a decrease in the bioavailability of Zn and Fe.

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Publisher Full Text (DOI)

Authors+Show Affiliations

Tran BTT
The School of Agriculture, Food and Wine, and the Waite Research Institute, The University of Adelaide, Waite Campus, PMB1, Glen Osmond, SA, 5064, Australia. Faculty of Agriculture and Forestry, Taynguyen University, Buon Ma Thuot City, Daklak Province, 63131, Vietnam.
Cavagnaro TR
The School of Agriculture, Food and Wine, and the Waite Research Institute, The University of Adelaide, Waite Campus, PMB1, Glen Osmond, SA, 5064, Australia.
Watts-Williams SJ
The School of Agriculture, Food and Wine, and the Waite Research Institute, The University of Adelaide, Waite Campus, PMB1, Glen Osmond, SA, 5064, Australia. stephanie.watts-williams@adelaide.edu.au. Australian Research Council Centre of Excellence in Plant Energy Biology, The University of Adelaide, Waite Campus, PMB1, Glen Osmond, SA, 5064, Australia. stephanie.watts-williams@adelaide.edu.au.

MeSH

Biological AvailabilityCrops, AgriculturalFertilizersIronMycorrhizaeSoilSoil MicrobiologyTriticumZinc

Pub Type(s)

Journal Article

Language

eng

PubMed ID

31456075

Citation

Tran, Binh T T., et al. "Arbuscular Mycorrhizal Fungal Inoculation and Soil Zinc Fertilisation Affect the Productivity and the Bioavailability of Zinc and Iron in Durum Wheat." Mycorrhiza, vol. 29, no. 5, 2019, pp. 445-457.
Tran BTT, Cavagnaro TR, Watts-Williams SJ. Arbuscular mycorrhizal fungal inoculation and soil zinc fertilisation affect the productivity and the bioavailability of zinc and iron in durum wheat. Mycorrhiza. 2019;29(5):445-457.
Tran, B. T. T., Cavagnaro, T. R., & Watts-Williams, S. J. (2019). Arbuscular mycorrhizal fungal inoculation and soil zinc fertilisation affect the productivity and the bioavailability of zinc and iron in durum wheat. Mycorrhiza, 29(5), 445-457. https://doi.org/10.1007/s00572-019-00911-4
Tran BTT, Cavagnaro TR, Watts-Williams SJ. Arbuscular Mycorrhizal Fungal Inoculation and Soil Zinc Fertilisation Affect the Productivity and the Bioavailability of Zinc and Iron in Durum Wheat. Mycorrhiza. 2019;29(5):445-457. PubMed PMID: 31456075.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Arbuscular mycorrhizal fungal inoculation and soil zinc fertilisation affect the productivity and the bioavailability of zinc and iron in durum wheat. AU - Tran,Binh T T, AU - Cavagnaro,Timothy R, AU - Watts-Williams,Stephanie J, Y1 - 2019/08/27/ PY - 2019/05/01/received PY - 2019/08/12/accepted PY - 2019/8/29/pubmed PY - 2020/2/19/medline PY - 2019/8/29/entrez KW - Biofortification KW - Micronutrient bioavailability KW - Phytic acid KW - Plant nutrition KW - Rhizophagus irregularis SP - 445 EP - 457 JF - Mycorrhiza JO - Mycorrhiza VL - 29 IS - 5 N2 - There is a growing recognition of the role of arbuscular mycorrhizal fungi (AMF) in food security, specifically the potential for AMF to enhance the yield and mineral nutrition-including phosphorus, zinc (Zn), and iron (Fe)-of food crops. However, the bioavailability of Zn and Fe for humans in the grain of cereal crops can be overestimated by failing to consider the abundance of phytic acid (PA). This is because PA can chelate the micronutrients, making them difficult to absorb. In order to understand the effect of an AM fungus and soil Zn concentration on the productivity and nutritional quality of food parts, this study examined the growth and nutritional responses of durum wheat, with and without inoculation with Rhizophagus irregularis, at five soil Zn concentrations. Growth and nutrient responses of the plants to soil Zn amendment was stronger than responses to AMF. However, the protective effect of AMF under soil Zn toxicity conditions was observed as reduced Zn concentration in the mycorrhizal durum wheat grain at Zn50. Here, AMF inoculation increased the concentration of PA in durum wheat grain but had no effect on the concentration of Zn and Fe; this consequently reduced the predicted bioavailability of grain Zn and Fe, which could lead to a decrease in nutritional quality of the grain. This research suggests that in soil with low (available) phosphorus and Zn concentrations, AMF may reduce the food quality of durum wheat because of an increase in PA concentration, and thus, a decrease in the bioavailability of Zn and Fe. SN - 1432-1890 UR - https://www.unboundmedicine.com/medline/citation/31456075/Arbuscular_mycorrhizal_fungal_inoculation_and_soil_zinc_fertilisation_affect_the_productivity_and_the_bioavailability_of_zinc_and_iron_in_durum_wheat_ DB - PRIME DP - Unbound Medicine ER -