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Arbuscular Mycorrhizal Symbiosis Mitigates Iron (Fe)-Deficiency Retardation in Alfalfa (Medicago sativa L.) Through the Enhancement of Fe Accumulation and Sulfur-Assisted Antioxidant Defense.
Int J Mol Sci. 2020 Mar 23; 21(6)IJ

Abstract

Iron (Fe)-deficiency is one of the major constraints affecting growth, yield and nutritional quality in plants. This study was performed to elucidate how arbuscular mycorrhizal fungi (AMF) alleviate Fe-deficiency retardation in alfalfa (Medicago sativa L.). AMF supplementation improved plant biomass, chlorophyll score, Fv/Fm (quantum efficiency of photosystem II), and Pi_ABS (photosynthesis performance index), and reduced cell death, electrolyte leakage, and hydrogen peroxide accumulation in alfalfa. Moreover, AMF enhanced ferric chelate reductase activity as well as Fe, Zn, S and P in alfalfa under Fe-deficiency. Although Fe-transporters (MsIRT1 and MsNramp1) did not induce in root but MsFRO1 significantly induced by AMF under Fe deficiency in roots, suggesting that AMF-mediated Fe enhancement is related to the bioavailability of Fe at rhizosphere/root apoplast rather than the upregulation of Fe transporters under Fe deficiency in alfalfa. Several S-transporters (MsSULTR1;1, MsSULTR1;2, MsSULTR1;3, and MsSULTR3;1) markedly increased following AMF supplementation with or without Fe-deficiency alfalfa. Our study further suggests that Fe uptake system is independently influenced by AMF regardless of the S status in alfalfa. However, the increase of S in alfalfa is correlated with the elevation of GR and S-metabolites (glutathione and cysteine) associated with antioxidant defense under Fe deficiency.

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Authors+Show Affiliations

Rahman MA
Grassland and Forage Division, National Institute of Animal Science, Rural Development Administration, Cheonan 31000, Korea.
Parvin M
Molecular Plant Physiology Laboratory, Department of Botany, University of Rajshahi, Rajshahi 6205, Bangladesh.
Das U
Molecular Plant Physiology Laboratory, Department of Botany, University of Rajshahi, Rajshahi 6205, Bangladesh.
Ela EJ
Molecular Plant Physiology Laboratory, Department of Botany, University of Rajshahi, Rajshahi 6205, Bangladesh.
Lee SH
Grassland and Forage Division, National Institute of Animal Science, Rural Development Administration, Cheonan 31000, Korea.
Lee KW
Grassland and Forage Division, National Institute of Animal Science, Rural Development Administration, Cheonan 31000, Korea.
Kabir AH
Molecular Plant Physiology Laboratory, Department of Botany, University of Rajshahi, Rajshahi 6205, Bangladesh.

MeSH

AntioxidantsIronIron DeficienciesMedicago sativaMineralsMycorrhizaeOxidative StressPhenotypeSulfurSymbiosis

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32210097

Citation

Rahman, Md Atikur, et al. "Arbuscular Mycorrhizal Symbiosis Mitigates Iron (Fe)-Deficiency Retardation in Alfalfa (Medicago Sativa L.) Through the Enhancement of Fe Accumulation and Sulfur-Assisted Antioxidant Defense." International Journal of Molecular Sciences, vol. 21, no. 6, 2020.
Rahman MA, Parvin M, Das U, et al. Arbuscular Mycorrhizal Symbiosis Mitigates Iron (Fe)-Deficiency Retardation in Alfalfa (Medicago sativa L.) Through the Enhancement of Fe Accumulation and Sulfur-Assisted Antioxidant Defense. Int J Mol Sci. 2020;21(6).
Rahman, M. A., Parvin, M., Das, U., Ela, E. J., Lee, S. H., Lee, K. W., & Kabir, A. H. (2020). Arbuscular Mycorrhizal Symbiosis Mitigates Iron (Fe)-Deficiency Retardation in Alfalfa (Medicago sativa L.) Through the Enhancement of Fe Accumulation and Sulfur-Assisted Antioxidant Defense. International Journal of Molecular Sciences, 21(6). https://doi.org/10.3390/ijms21062219
Rahman MA, et al. Arbuscular Mycorrhizal Symbiosis Mitigates Iron (Fe)-Deficiency Retardation in Alfalfa (Medicago Sativa L.) Through the Enhancement of Fe Accumulation and Sulfur-Assisted Antioxidant Defense. Int J Mol Sci. 2020 Mar 23;21(6) PubMed PMID: 32210097.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Arbuscular Mycorrhizal Symbiosis Mitigates Iron (Fe)-Deficiency Retardation in Alfalfa (Medicago sativa L.) Through the Enhancement of Fe Accumulation and Sulfur-Assisted Antioxidant Defense. AU - Rahman,Md Atikur, AU - Parvin,Monika, AU - Das,Urmi, AU - Ela,Esrat Jahan, AU - Lee,Sang-Hoon, AU - Lee,Ki-Won, AU - Kabir,Ahmad Humayan, Y1 - 2020/03/23/ PY - 2020/03/01/received PY - 2020/03/16/revised PY - 2020/03/20/accepted PY - 2020/3/27/entrez PY - 2020/3/27/pubmed PY - 2020/12/15/medline KW - Fe-chelate reductase KW - Fe-deficiency KW - Fe-mobilization KW - Medicago sativa KW - alfalfa KW - arbuscular mycorrhizal fungi KW - symbiosis JF - International journal of molecular sciences JO - Int J Mol Sci VL - 21 IS - 6 N2 - Iron (Fe)-deficiency is one of the major constraints affecting growth, yield and nutritional quality in plants. This study was performed to elucidate how arbuscular mycorrhizal fungi (AMF) alleviate Fe-deficiency retardation in alfalfa (Medicago sativa L.). AMF supplementation improved plant biomass, chlorophyll score, Fv/Fm (quantum efficiency of photosystem II), and Pi_ABS (photosynthesis performance index), and reduced cell death, electrolyte leakage, and hydrogen peroxide accumulation in alfalfa. Moreover, AMF enhanced ferric chelate reductase activity as well as Fe, Zn, S and P in alfalfa under Fe-deficiency. Although Fe-transporters (MsIRT1 and MsNramp1) did not induce in root but MsFRO1 significantly induced by AMF under Fe deficiency in roots, suggesting that AMF-mediated Fe enhancement is related to the bioavailability of Fe at rhizosphere/root apoplast rather than the upregulation of Fe transporters under Fe deficiency in alfalfa. Several S-transporters (MsSULTR1;1, MsSULTR1;2, MsSULTR1;3, and MsSULTR3;1) markedly increased following AMF supplementation with or without Fe-deficiency alfalfa. Our study further suggests that Fe uptake system is independently influenced by AMF regardless of the S status in alfalfa. However, the increase of S in alfalfa is correlated with the elevation of GR and S-metabolites (glutathione and cysteine) associated with antioxidant defense under Fe deficiency. SN - 1422-0067 UR - https://www.unboundmedicine.com/medline/citation/32210097/Arbuscular_Mycorrhizal_Symbiosis_Mitigates_Iron__Fe__Deficiency_Retardation_in_Alfalfa__Medicago_sativa_L___Through_the_Enhancement_of_Fe_Accumulation_and_Sulfur_Assisted_Antioxidant_Defense_ DB - PRIME DP - Unbound Medicine ER -