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The effects of soil phosphorus and zinc availability on plant responses to mycorrhizal fungi: a physiological and molecular assessment.
Sci Rep. 2019 10 16; 9(1):14880.SR

Abstract

The positive effects of arbuscular mycorrhizal fungi (AMF) have been demonstrated for plant biomass, and zinc (Zn) and phosphorus (P) uptake, under soil nutrient deficiency. Additionally, a number of Zn and P transporter genes are affected by mycorrhizal colonisation or implicated in the mycorrhizal pathway of uptake. However, a comprehensive study of plant physiology and gene expression simultaneously, remains to be undertaken. Medicago truncatula was grown at different soil P and Zn availabilities, with or without inoculation of Rhizophagus irregularis. Measures of biomass, shoot elemental concentrations, mycorrhizal colonisation, and expression of Zn transporter (ZIP) and phosphate transporter (PT) genes in the roots, were taken. Mycorrhizal plants had a greater tolerance of both P and Zn soil deficiency; there was also evidence of AMF protecting plants against excessive Zn accumulation at high soil Zn. The expression of all PT genes was interactive with both P availability and mycorrhizal colonisation. MtZIP5 expression was induced both by AMF and soil Zn deficiency, while MtZIP2 was down-regulated in mycorrhizal plants, and up-regulated with increasing soil Zn concentration. These findings provide the first comprehensive physiological and molecular picture of plant-mycorrhizal fungal symbiosis with regard to soil P and Zn availability. Mycorrhizal fungi conferred tolerance to soil Zn and P deficiency and this could be linked to the induction of the ZIP transporter gene MtZIP5, and the PT gene MtPT4.

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Authors+Show Affiliations

Nguyen TD
The School of Agriculture, Food & Wine and The Waite Research Institute, The University of Adelaide, Glen Osmond, South Australia, 5064, Australia. The Australian Research Council Centre of Excellence in Plant Energy Biology, The University of Adelaide, Glen Osmond, South Australia, 5064, Australia. Institute of Biotechnology, Hue University, Provincial Road 10, Ngoc Anh, Phu Thuong, Phu Vang, Thua Thien Hue, 49000, Vietnam.
Cavagnaro TR
The School of Agriculture, Food & Wine and The Waite Research Institute, The University of Adelaide, Glen Osmond, South Australia, 5064, Australia.
Watts-Williams SJ
The School of Agriculture, Food & Wine and The Waite Research Institute, The University of Adelaide, Glen Osmond, South Australia, 5064, Australia. stephanie.watts-williams@adelaide.edu.au. The Australian Research Council Centre of Excellence in Plant Energy Biology, The University of Adelaide, Glen Osmond, South Australia, 5064, Australia. stephanie.watts-williams@adelaide.edu.au.

MeSH

BiomassCation Transport ProteinsGene Expression Regulation, PlantHumansIon TransportMedicago truncatulaMycorrhizaePhosphorusPlant ProteinsPlant ShootsRhizophoraceaeSoilSymbiosisZinc

Pub Type(s)

Journal Article
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

31619728

Citation

Nguyen, Thi Diem, et al. "The Effects of Soil Phosphorus and Zinc Availability On Plant Responses to Mycorrhizal Fungi: a Physiological and Molecular Assessment." Scientific Reports, vol. 9, no. 1, 2019, p. 14880.
Nguyen TD, Cavagnaro TR, Watts-Williams SJ. The effects of soil phosphorus and zinc availability on plant responses to mycorrhizal fungi: a physiological and molecular assessment. Sci Rep. 2019;9(1):14880.
Nguyen, T. D., Cavagnaro, T. R., & Watts-Williams, S. J. (2019). The effects of soil phosphorus and zinc availability on plant responses to mycorrhizal fungi: a physiological and molecular assessment. Scientific Reports, 9(1), 14880. https://doi.org/10.1038/s41598-019-51369-5
Nguyen TD, Cavagnaro TR, Watts-Williams SJ. The Effects of Soil Phosphorus and Zinc Availability On Plant Responses to Mycorrhizal Fungi: a Physiological and Molecular Assessment. Sci Rep. 2019 10 16;9(1):14880. PubMed PMID: 31619728.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - The effects of soil phosphorus and zinc availability on plant responses to mycorrhizal fungi: a physiological and molecular assessment. AU - Nguyen,Thi Diem, AU - Cavagnaro,Timothy R, AU - Watts-Williams,Stephanie J, Y1 - 2019/10/16/ PY - 2019/01/31/received PY - 2019/09/30/accepted PY - 2019/10/18/entrez PY - 2019/10/18/pubmed PY - 2020/11/3/medline SP - 14880 EP - 14880 JF - Scientific reports JO - Sci Rep VL - 9 IS - 1 N2 - The positive effects of arbuscular mycorrhizal fungi (AMF) have been demonstrated for plant biomass, and zinc (Zn) and phosphorus (P) uptake, under soil nutrient deficiency. Additionally, a number of Zn and P transporter genes are affected by mycorrhizal colonisation or implicated in the mycorrhizal pathway of uptake. However, a comprehensive study of plant physiology and gene expression simultaneously, remains to be undertaken. Medicago truncatula was grown at different soil P and Zn availabilities, with or without inoculation of Rhizophagus irregularis. Measures of biomass, shoot elemental concentrations, mycorrhizal colonisation, and expression of Zn transporter (ZIP) and phosphate transporter (PT) genes in the roots, were taken. Mycorrhizal plants had a greater tolerance of both P and Zn soil deficiency; there was also evidence of AMF protecting plants against excessive Zn accumulation at high soil Zn. The expression of all PT genes was interactive with both P availability and mycorrhizal colonisation. MtZIP5 expression was induced both by AMF and soil Zn deficiency, while MtZIP2 was down-regulated in mycorrhizal plants, and up-regulated with increasing soil Zn concentration. These findings provide the first comprehensive physiological and molecular picture of plant-mycorrhizal fungal symbiosis with regard to soil P and Zn availability. Mycorrhizal fungi conferred tolerance to soil Zn and P deficiency and this could be linked to the induction of the ZIP transporter gene MtZIP5, and the PT gene MtPT4. SN - 2045-2322 UR - https://www.unboundmedicine.com/medline/citation/31619728/The_effects_of_soil_phosphorus_and_zinc_availability_on_plant_responses_to_mycorrhizal_fungi:_a_physiological_and_molecular_assessment_ DB - PRIME DP - Unbound Medicine ER -
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