Silicon increases iron use efficiency in cucumber – a strategy 1 model plant
Конференцијски прилог (Објављена верзија)
Метаподаци
Приказ свих података о документуАпстракт
Silicon (Si) and iron (Fe) are respectively the second and the fourth most abundant minerals in
the earth’s crust. While the essentiality of Fe has been discovered in the middle of the 19th century, Si is still not fully accepted as an essential element for higher plants. Due to poor Fe availability for higher plants, especially in alkaline and calcareous soils, Fe deficiency represents a major limiting factor for crop production worldwide, affecting both crop yield and quality, with a strong negative impact on human health.
Here we investigated the key physiological, biochemical and molecular parameters involved in
the processes of root acquisition and tissue utilization of Fe by cucumber (Cucumis sativus L.), as
both Strategy 1 model and Si-accumulating species.
Silicon nutrition increased the accumulation of apoplastic Fe and Fe-mobilizing compounds in
roots, as well as upregulated the expression of genes (AHA1, FRO2, IRT1) encoding the main components
of the reduction-based ...Fe uptake machinery (Pavlovic et al., 2013). In leaves, Si affected
relative Fe distribution by enhancing Fe remobilization from old leaves via increased NA accumulation and expression of the YSL1, which stimulated Fe chelation and its retranslocation to younger leaves (Pavlovic et al., 2016). This for the first time demonstrated a new beneficial role of Si, i.e. in increasing nutrient acquisition, transport and utilization by crops.
References:
Pavlovic J., Samardzic J., Kostic L., Laursen K.H., Natic M., Timotijevic G., Schjoerring J.K., Nikolic M. (2016): Ann. Bot. 118, 271-280.
Pavlovic J., Samardzic J., Maksimović V., Timotijevic G., Stevic N., Laursen K.H., Hansen T.H., Husted S., Schjoerring J.K., Liang Y., Nikolic M. (2013): New Phytol. 198, 1096-1107.
Кључне речи:
cucumber (Cucumis sativus L.), iron deficiency, leaf retranslocation, root acquisition, siliconИзвор:
3rd International Conference on Plant Biology (22nd SPPS Meeting), June 9-12, 2018, Belgrade, Serbia, 2018Издавач:
- Serbian Plant Physiology Society; Institute for Biological Research “Siniša Stanković”, University of Belgrade; Faculty of Biology, University of Belgrade
Институција/група
Institut za multidisciplinarna istraživanjaTY - CONF AU - Pavlović, Jelena AU - Nikolic, Miroslav PY - 2018 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/2139 AB - Silicon (Si) and iron (Fe) are respectively the second and the fourth most abundant minerals in the earth’s crust. While the essentiality of Fe has been discovered in the middle of the 19th century, Si is still not fully accepted as an essential element for higher plants. Due to poor Fe availability for higher plants, especially in alkaline and calcareous soils, Fe deficiency represents a major limiting factor for crop production worldwide, affecting both crop yield and quality, with a strong negative impact on human health. Here we investigated the key physiological, biochemical and molecular parameters involved in the processes of root acquisition and tissue utilization of Fe by cucumber (Cucumis sativus L.), as both Strategy 1 model and Si-accumulating species. Silicon nutrition increased the accumulation of apoplastic Fe and Fe-mobilizing compounds in roots, as well as upregulated the expression of genes (AHA1, FRO2, IRT1) encoding the main components of the reduction-based Fe uptake machinery (Pavlovic et al., 2013). In leaves, Si affected relative Fe distribution by enhancing Fe remobilization from old leaves via increased NA accumulation and expression of the YSL1, which stimulated Fe chelation and its retranslocation to younger leaves (Pavlovic et al., 2016). This for the first time demonstrated a new beneficial role of Si, i.e. in increasing nutrient acquisition, transport and utilization by crops. References: Pavlovic J., Samardzic J., Kostic L., Laursen K.H., Natic M., Timotijevic G., Schjoerring J.K., Nikolic M. (2016): Ann. Bot. 118, 271-280. Pavlovic J., Samardzic J., Maksimović V., Timotijevic G., Stevic N., Laursen K.H., Hansen T.H., Husted S., Schjoerring J.K., Liang Y., Nikolic M. (2013): New Phytol. 198, 1096-1107. PB - Serbian Plant Physiology Society; Institute for Biological Research “Siniša Stanković”, University of Belgrade; Faculty of Biology, University of Belgrade C3 - 3rd International Conference on Plant Biology (22nd SPPS Meeting), June 9-12, 2018, Belgrade, Serbia T1 - Silicon increases iron use efficiency in cucumber – a strategy 1 model plant UR - https://hdl.handle.net/21.15107/rcub_rimsi_2139 ER -
@conference{ author = "Pavlović, Jelena and Nikolic, Miroslav", year = "2018", abstract = "Silicon (Si) and iron (Fe) are respectively the second and the fourth most abundant minerals in the earth’s crust. While the essentiality of Fe has been discovered in the middle of the 19th century, Si is still not fully accepted as an essential element for higher plants. Due to poor Fe availability for higher plants, especially in alkaline and calcareous soils, Fe deficiency represents a major limiting factor for crop production worldwide, affecting both crop yield and quality, with a strong negative impact on human health. Here we investigated the key physiological, biochemical and molecular parameters involved in the processes of root acquisition and tissue utilization of Fe by cucumber (Cucumis sativus L.), as both Strategy 1 model and Si-accumulating species. Silicon nutrition increased the accumulation of apoplastic Fe and Fe-mobilizing compounds in roots, as well as upregulated the expression of genes (AHA1, FRO2, IRT1) encoding the main components of the reduction-based Fe uptake machinery (Pavlovic et al., 2013). In leaves, Si affected relative Fe distribution by enhancing Fe remobilization from old leaves via increased NA accumulation and expression of the YSL1, which stimulated Fe chelation and its retranslocation to younger leaves (Pavlovic et al., 2016). This for the first time demonstrated a new beneficial role of Si, i.e. in increasing nutrient acquisition, transport and utilization by crops. References: Pavlovic J., Samardzic J., Kostic L., Laursen K.H., Natic M., Timotijevic G., Schjoerring J.K., Nikolic M. (2016): Ann. Bot. 118, 271-280. Pavlovic J., Samardzic J., Maksimović V., Timotijevic G., Stevic N., Laursen K.H., Hansen T.H., Husted S., Schjoerring J.K., Liang Y., Nikolic M. (2013): New Phytol. 198, 1096-1107.", publisher = "Serbian Plant Physiology Society; Institute for Biological Research “Siniša Stanković”, University of Belgrade; Faculty of Biology, University of Belgrade", journal = "3rd International Conference on Plant Biology (22nd SPPS Meeting), June 9-12, 2018, Belgrade, Serbia", title = "Silicon increases iron use efficiency in cucumber – a strategy 1 model plant", url = "https://hdl.handle.net/21.15107/rcub_rimsi_2139" }
Pavlović, J.,& Nikolic, M.. (2018). Silicon increases iron use efficiency in cucumber – a strategy 1 model plant. in 3rd International Conference on Plant Biology (22nd SPPS Meeting), June 9-12, 2018, Belgrade, Serbia Serbian Plant Physiology Society; Institute for Biological Research “Siniša Stanković”, University of Belgrade; Faculty of Biology, University of Belgrade.. https://hdl.handle.net/21.15107/rcub_rimsi_2139
Pavlović J, Nikolic M. Silicon increases iron use efficiency in cucumber – a strategy 1 model plant. in 3rd International Conference on Plant Biology (22nd SPPS Meeting), June 9-12, 2018, Belgrade, Serbia. 2018;. https://hdl.handle.net/21.15107/rcub_rimsi_2139 .
Pavlović, Jelena, Nikolic, Miroslav, "Silicon increases iron use efficiency in cucumber – a strategy 1 model plant" in 3rd International Conference on Plant Biology (22nd SPPS Meeting), June 9-12, 2018, Belgrade, Serbia (2018), https://hdl.handle.net/21.15107/rcub_rimsi_2139 .