The beneficial effects of Si on iron deficiency stress alleviation in barley: modulation of Strategy II genes expression and metal redistribution
Authors
Nikolic, Dragana B.Nesic, Sofija
Bosnic, Dragana
Kostić, Ljiljana
Nikolic, Miroslav
Samardzic, Jelena
Conference object (Published version)
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University of Copenhagen, Denmark
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The beneficial effects of silicon (Si) on various abiotic and biotic stresses in plants are well established; however, molecular
mechanisms are not completely understood. An ameliorative effect of Si on iron (Fe) deficiency stress has only been shown
on plants which use the reduction-based strategy (Strategy I) for Fe acquisition. The aim of our study was to investigate
influence of Si on Fe deficiency stress alleviation in a cereal plant which uses the chelation-based strategy (Strategy II) for
Fe acquisition, and barley was chosen as a representative.
Si successfully ameliorated Fe deficiency in barley, attenuating chlorosis and biomass loss of the youngest leaves, as well
as ROS accumulation, accompanied with the recovered activities of antioxidative enzymes, ascorbate peroxidase and
catalase. Si increased Fe content in the youngest leaves of Fe deprived plants, as well as Fe concentration in the watersoluble
(w-s) fraction. On the other hand, w-s concentration and total con...tent of optimally supplied microelements, Mn and
Zn, were decreased in Si supplied plants. The expression of Strategy II genes was modulated under the influence of Si. An
expeditious increase in the gene expression was detected in Fe deficient roots. Moreover, a dramatic Si-promoted
upregulation of some of the investigated genes was detected in leaves.
Fe deficiency in plants due to low Fe availability in soils has a considerable impact on both yield and nutritional value of
crops. New findings presented in our study may support development of strategies to overcome this substantial agricultural
problem.
Keywords:
Silicon, Iron deficiency, Strategy II plantsSource:
Plant Biology Europe 2018 Conference Abstract Book, 2018Publisher:
- University of Copenhagen, Denmark
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Institut za multidisciplinarna istraživanjaTY - CONF AU - Nikolic, Dragana B. AU - Nesic, Sofija AU - Bosnic, Dragana AU - Kostić, Ljiljana AU - Nikolic, Miroslav AU - Samardzic, Jelena PY - 2018 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/2478 AB - The beneficial effects of silicon (Si) on various abiotic and biotic stresses in plants are well established; however, molecular mechanisms are not completely understood. An ameliorative effect of Si on iron (Fe) deficiency stress has only been shown on plants which use the reduction-based strategy (Strategy I) for Fe acquisition. The aim of our study was to investigate influence of Si on Fe deficiency stress alleviation in a cereal plant which uses the chelation-based strategy (Strategy II) for Fe acquisition, and barley was chosen as a representative. Si successfully ameliorated Fe deficiency in barley, attenuating chlorosis and biomass loss of the youngest leaves, as well as ROS accumulation, accompanied with the recovered activities of antioxidative enzymes, ascorbate peroxidase and catalase. Si increased Fe content in the youngest leaves of Fe deprived plants, as well as Fe concentration in the watersoluble (w-s) fraction. On the other hand, w-s concentration and total content of optimally supplied microelements, Mn and Zn, were decreased in Si supplied plants. The expression of Strategy II genes was modulated under the influence of Si. An expeditious increase in the gene expression was detected in Fe deficient roots. Moreover, a dramatic Si-promoted upregulation of some of the investigated genes was detected in leaves. Fe deficiency in plants due to low Fe availability in soils has a considerable impact on both yield and nutritional value of crops. New findings presented in our study may support development of strategies to overcome this substantial agricultural problem. PB - University of Copenhagen, Denmark C3 - Plant Biology Europe 2018 Conference Abstract Book T1 - The beneficial effects of Si on iron deficiency stress alleviation in barley: modulation of Strategy II genes expression and metal redistribution UR - https://hdl.handle.net/21.15107/rcub_rimsi_2478 ER -
@conference{ author = "Nikolic, Dragana B. and Nesic, Sofija and Bosnic, Dragana and Kostić, Ljiljana and Nikolic, Miroslav and Samardzic, Jelena", year = "2018", abstract = "The beneficial effects of silicon (Si) on various abiotic and biotic stresses in plants are well established; however, molecular mechanisms are not completely understood. An ameliorative effect of Si on iron (Fe) deficiency stress has only been shown on plants which use the reduction-based strategy (Strategy I) for Fe acquisition. The aim of our study was to investigate influence of Si on Fe deficiency stress alleviation in a cereal plant which uses the chelation-based strategy (Strategy II) for Fe acquisition, and barley was chosen as a representative. Si successfully ameliorated Fe deficiency in barley, attenuating chlorosis and biomass loss of the youngest leaves, as well as ROS accumulation, accompanied with the recovered activities of antioxidative enzymes, ascorbate peroxidase and catalase. Si increased Fe content in the youngest leaves of Fe deprived plants, as well as Fe concentration in the watersoluble (w-s) fraction. On the other hand, w-s concentration and total content of optimally supplied microelements, Mn and Zn, were decreased in Si supplied plants. The expression of Strategy II genes was modulated under the influence of Si. An expeditious increase in the gene expression was detected in Fe deficient roots. Moreover, a dramatic Si-promoted upregulation of some of the investigated genes was detected in leaves. Fe deficiency in plants due to low Fe availability in soils has a considerable impact on both yield and nutritional value of crops. New findings presented in our study may support development of strategies to overcome this substantial agricultural problem.", publisher = "University of Copenhagen, Denmark", journal = "Plant Biology Europe 2018 Conference Abstract Book", title = "The beneficial effects of Si on iron deficiency stress alleviation in barley: modulation of Strategy II genes expression and metal redistribution", url = "https://hdl.handle.net/21.15107/rcub_rimsi_2478" }
Nikolic, D. B., Nesic, S., Bosnic, D., Kostić, L., Nikolic, M.,& Samardzic, J.. (2018). The beneficial effects of Si on iron deficiency stress alleviation in barley: modulation of Strategy II genes expression and metal redistribution. in Plant Biology Europe 2018 Conference Abstract Book University of Copenhagen, Denmark.. https://hdl.handle.net/21.15107/rcub_rimsi_2478
Nikolic DB, Nesic S, Bosnic D, Kostić L, Nikolic M, Samardzic J. The beneficial effects of Si on iron deficiency stress alleviation in barley: modulation of Strategy II genes expression and metal redistribution. in Plant Biology Europe 2018 Conference Abstract Book. 2018;. https://hdl.handle.net/21.15107/rcub_rimsi_2478 .
Nikolic, Dragana B., Nesic, Sofija, Bosnic, Dragana, Kostić, Ljiljana, Nikolic, Miroslav, Samardzic, Jelena, "The beneficial effects of Si on iron deficiency stress alleviation in barley: modulation of Strategy II genes expression and metal redistribution" in Plant Biology Europe 2018 Conference Abstract Book (2018), https://hdl.handle.net/21.15107/rcub_rimsi_2478 .