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Arbuscular mycorrhizal fungi increase grain zinc concentration and modify the expression of root ZIP transporter genes in a modern barley (Hordeum vulgare) cultivar.
Plant Sci. 2018 Sep; 274:163-170.PS

Abstract

The positive effects of arbuscular mycorrhizal fungi (AMF) on the zinc (Zn) nutrition of a number of cereal species has been demonstrated, but for Hordeum vulgare (barley), this has been scarcely investigated. Zn is taken up by ZIP transporters in the roots, and several barley ZIP transporter genes are up-regulated under Zn deficient conditions. We grew a modern cultivar of barley (cv. Compass) at five different soil Zn concentrations ranging from no addition through to a toxic concentration. The plants were either inoculated with the AMF Rhizophagus irregularis, or mock-inoculated. At harvest, measurements of biomass, tissue Zn concentration, and expression of ZIP transporter genes were taken. Inoculation of barley with AMF resulted in improved grain and straw Zn concentrations, especially at low soil Zn concentrations, but did not increase the biomass of the plants. Of the five HvZIP genes tested that are up-regulated under low Zn conditions, one gene (HvZIP13) was significantly up-regulated by mycorrhizal colonisation at the lowest Zn treatment. Two other ZIP genes were down-regulated in mycorrhizal plants under low soil Zn. Inoculation with AMF has an effect on ZIP transporter genes in the roots of barley plants. Furthermore, AMF may be more useful for improving quality of barley grain in terms of Zn concentrations, rather than improving yield.

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Authors+Show Affiliations

Watts-Williams SJ
The Waite Research Institute and The School of Agriculture, Food and Wine, The University of Adelaide, Glen Osmond, South Australia, Australia; Australian Research Council Centre of Excellence in Plant Energy Biology, The University of Adelaide, Glen Osmond, South Australia, Australia. Electronic address: stephanie.watts-williams@adelaide.edu.au.
Cavagnaro TR
The Waite Research Institute and The School of Agriculture, Food and Wine, The University of Adelaide, Glen Osmond, South Australia, Australia.

MeSH

Cation Transport ProteinsGene Expression Regulation, PlantGenes, PlantHordeumMycorrhizaePlant ProteinsPlant RootsSeedsZinc

Pub Type(s)

Journal Article

Language

eng

PubMed ID

30080600

Citation

Watts-Williams, Stephanie J., and Timothy R. Cavagnaro. "Arbuscular Mycorrhizal Fungi Increase Grain Zinc Concentration and Modify the Expression of Root ZIP Transporter Genes in a Modern Barley (Hordeum Vulgare) Cultivar." Plant Science : an International Journal of Experimental Plant Biology, vol. 274, 2018, pp. 163-170.
Watts-Williams SJ, Cavagnaro TR. Arbuscular mycorrhizal fungi increase grain zinc concentration and modify the expression of root ZIP transporter genes in a modern barley (Hordeum vulgare) cultivar. Plant Sci. 2018;274:163-170.
Watts-Williams, S. J., & Cavagnaro, T. R. (2018). Arbuscular mycorrhizal fungi increase grain zinc concentration and modify the expression of root ZIP transporter genes in a modern barley (Hordeum vulgare) cultivar. Plant Science : an International Journal of Experimental Plant Biology, 274, 163-170. https://doi.org/10.1016/j.plantsci.2018.05.015
Watts-Williams SJ, Cavagnaro TR. Arbuscular Mycorrhizal Fungi Increase Grain Zinc Concentration and Modify the Expression of Root ZIP Transporter Genes in a Modern Barley (Hordeum Vulgare) Cultivar. Plant Sci. 2018;274:163-170. PubMed PMID: 30080600.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Arbuscular mycorrhizal fungi increase grain zinc concentration and modify the expression of root ZIP transporter genes in a modern barley (Hordeum vulgare) cultivar. AU - Watts-Williams,Stephanie J, AU - Cavagnaro,Timothy R, Y1 - 2018/05/23/ PY - 2018/02/15/received PY - 2018/05/04/revised PY - 2018/05/20/accepted PY - 2018/8/7/entrez PY - 2018/8/7/pubmed PY - 2018/10/10/medline KW - Arbuscular mycorrhizal fungi KW - Barley KW - Biofortification KW - Hordeum vulgare KW - ZIP transporter KW - Zinc SP - 163 EP - 170 JF - Plant science : an international journal of experimental plant biology JO - Plant Sci VL - 274 N2 - The positive effects of arbuscular mycorrhizal fungi (AMF) on the zinc (Zn) nutrition of a number of cereal species has been demonstrated, but for Hordeum vulgare (barley), this has been scarcely investigated. Zn is taken up by ZIP transporters in the roots, and several barley ZIP transporter genes are up-regulated under Zn deficient conditions. We grew a modern cultivar of barley (cv. Compass) at five different soil Zn concentrations ranging from no addition through to a toxic concentration. The plants were either inoculated with the AMF Rhizophagus irregularis, or mock-inoculated. At harvest, measurements of biomass, tissue Zn concentration, and expression of ZIP transporter genes were taken. Inoculation of barley with AMF resulted in improved grain and straw Zn concentrations, especially at low soil Zn concentrations, but did not increase the biomass of the plants. Of the five HvZIP genes tested that are up-regulated under low Zn conditions, one gene (HvZIP13) was significantly up-regulated by mycorrhizal colonisation at the lowest Zn treatment. Two other ZIP genes were down-regulated in mycorrhizal plants under low soil Zn. Inoculation with AMF has an effect on ZIP transporter genes in the roots of barley plants. Furthermore, AMF may be more useful for improving quality of barley grain in terms of Zn concentrations, rather than improving yield. SN - 1873-2259 UR - https://www.unboundmedicine.com/medline/citation/30080600/Arbuscular_mycorrhizal_fungi_increase_grain_zinc_concentration_and_modify_the_expression_of_root_ZIP_transporter_genes_in_a_modern_barley__Hordeum_vulgare__cultivar_ DB - PRIME DP - Unbound Medicine ER -