TY  - CHAP
AU  - Kirkby, Ernest A.
AU  - Nikolic, Miroslav
AU  - White, Philip John
AU  - Xu, Guohua
PY  - 2023
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1612
AB  - This chapter describes the role of nutrients in regulating plant processes underlying yield formation. The yield of crop plants is
controlled by biomass production and its partitioning to harvested plant organs. Biomass production is dependent on the capture
of light energy, through the photosynthetic activity of leaves (i.e., source activity) and leaf area, to provide carbon and energy
for the entire plant. Roots supply plants with water and nutrients from the soil. Nutrients are required for leaf growth and as
integral constituents of the photosynthetic apparatus. Nutrient supply also affects photosynthesis and leaf senescence indirectly
via photooxidation, hydraulic and phytohormonal signals as well as by sugar signaling. Nutrients impact respiration as constituents
of the respiratory electron chain and by their influence on the efficiency of respiratory ATP synthesis. The chapter
describes how photosynthate partitioning to plant organs is controlled by the capacity of these organs to utilize assimilates for
growth and storage, that is, their sink strength, and how this is influenced by nutrient supply. Nutrients play an important role
in regulating sink formation, for example, by their effects on plant architecture, flowering, pollination, and tuber initiation, as
well as in controlling storage processes in the sink organs. Nutrient supply also modifies endogenous concentrations of phytohormones
that regulate sink source relationships. The source and sink organs are physically separated. Therefore, long-distance
transport of photosynthates and nutrients in the phloem from source to sink is essential for growth and plant yield. The principles
of phloem loading of assimilates at source sites, phloem transport, and phloem unloading at the sink sites are described.
PB  - Academic Press
T2  - Marschner’s Mineral Nutrition of Plants
T1  - Mineral nutrition, yield, and source-sink relationships
EP  - 200
SP  - 131
DO  - 10.1016/B978-0-12-819773-8.00015-0
ER  - 

@inbook{
author = "Kirkby, Ernest A. and Nikolic, Miroslav and White, Philip John and Xu, Guohua",
year = "2023",
abstract = "This chapter describes the role of nutrients in regulating plant processes underlying yield formation. The yield of crop plants is
controlled by biomass production and its partitioning to harvested plant organs. Biomass production is dependent on the capture
of light energy, through the photosynthetic activity of leaves (i.e., source activity) and leaf area, to provide carbon and energy
for the entire plant. Roots supply plants with water and nutrients from the soil. Nutrients are required for leaf growth and as
integral constituents of the photosynthetic apparatus. Nutrient supply also affects photosynthesis and leaf senescence indirectly
via photooxidation, hydraulic and phytohormonal signals as well as by sugar signaling. Nutrients impact respiration as constituents
of the respiratory electron chain and by their influence on the efficiency of respiratory ATP synthesis. The chapter
describes how photosynthate partitioning to plant organs is controlled by the capacity of these organs to utilize assimilates for
growth and storage, that is, their sink strength, and how this is influenced by nutrient supply. Nutrients play an important role
in regulating sink formation, for example, by their effects on plant architecture, flowering, pollination, and tuber initiation, as
well as in controlling storage processes in the sink organs. Nutrient supply also modifies endogenous concentrations of phytohormones
that regulate sink source relationships. The source and sink organs are physically separated. Therefore, long-distance
transport of photosynthates and nutrients in the phloem from source to sink is essential for growth and plant yield. The principles
of phloem loading of assimilates at source sites, phloem transport, and phloem unloading at the sink sites are described.",
publisher = "Academic Press",
journal = "Marschner’s Mineral Nutrition of Plants",
booktitle = "Mineral nutrition, yield, and source-sink relationships",
pages = "200-131",
doi = "10.1016/B978-0-12-819773-8.00015-0"
}

Kirkby, E. A., Nikolic, M., White, P. J.,& Xu, G.. (2023). Mineral nutrition, yield, and source-sink relationships. in Marschner’s Mineral Nutrition of Plants
Academic Press., 131-200.
https://doi.org/10.1016/B978-0-12-819773-8.00015-0

Kirkby EA, Nikolic M, White PJ, Xu G. Mineral nutrition, yield, and source-sink relationships. in Marschner’s Mineral Nutrition of Plants. 2023;:131-200.
doi:10.1016/B978-0-12-819773-8.00015-0 .

Kirkby, Ernest A., Nikolic, Miroslav, White, Philip John, Xu, Guohua, "Mineral nutrition, yield, and source-sink relationships" in Marschner’s Mineral Nutrition of Plants (2023):131-200,
https://doi.org/10.1016/B978-0-12-819773-8.00015-0 . .

TY  - JOUR
AU  - Pavlović, Jelena
AU  - Kostić Kravljanac, Ljiljana
AU  - Bosnić, Predrag
AU  - Kirkby, Ernest A.
AU  - Nikolic, Miroslav
PY  - 2021
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1425
AB  - Silicon (Si) is not classified as an essential element for plants, but numerous studies have demonstrated its beneficial effects in a variety of species and environmental conditions, including low nutrient availability. Application of Si shows the potential to increase nutrient availability in the rhizosphere and root uptake through complex mechanisms, which still remain unclear. Silicon-mediated transcriptional regulation of element transporters for both root acquisition and tissue homeostasis has recently been suggested as an important strategy, varying in detail depending on plant species and nutritional status. Here, we summarize evidence of Si-mediated acquisition, uptake and translocation of nutrients: nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), sulfur (S), iron (Fe), zinc (Zn), manganese (Mn), copper (Cu), boron (B), chlorine (Cl), and nickel (Ni) under both deficiency and excess conditions. In addition, we discuss interactions of Si-with beneficial elements: aluminum (Al), sodium (Na), and selenium (Se). This review also highlights further research needed to improve understanding of Si-mediated acquisition and utilization of nutrients and vice versa nutrient status-mediated Si acquisition and transport, both processes which are of high importance for agronomic practice (e.g., reduced use of fertilizers and pesticides).
PB  - Frontiers Media Sa, Lausanne
T2  - Frontiers in Plant Science
T1  - Interactions of Silicon With Essential and Beneficial Elements in Plants
VL  - 12
DO  - 10.3389/fpls.2021.697592
ER  - 

@article{
author = "Pavlović, Jelena and Kostić Kravljanac, Ljiljana and Bosnić, Predrag and Kirkby, Ernest A. and Nikolic, Miroslav",
year = "2021",
abstract = "Silicon (Si) is not classified as an essential element for plants, but numerous studies have demonstrated its beneficial effects in a variety of species and environmental conditions, including low nutrient availability. Application of Si shows the potential to increase nutrient availability in the rhizosphere and root uptake through complex mechanisms, which still remain unclear. Silicon-mediated transcriptional regulation of element transporters for both root acquisition and tissue homeostasis has recently been suggested as an important strategy, varying in detail depending on plant species and nutritional status. Here, we summarize evidence of Si-mediated acquisition, uptake and translocation of nutrients: nitrogen (N), phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg), sulfur (S), iron (Fe), zinc (Zn), manganese (Mn), copper (Cu), boron (B), chlorine (Cl), and nickel (Ni) under both deficiency and excess conditions. In addition, we discuss interactions of Si-with beneficial elements: aluminum (Al), sodium (Na), and selenium (Se). This review also highlights further research needed to improve understanding of Si-mediated acquisition and utilization of nutrients and vice versa nutrient status-mediated Si acquisition and transport, both processes which are of high importance for agronomic practice (e.g., reduced use of fertilizers and pesticides).",
publisher = "Frontiers Media Sa, Lausanne",
journal = "Frontiers in Plant Science",
title = "Interactions of Silicon With Essential and Beneficial Elements in Plants",
volume = "12",
doi = "10.3389/fpls.2021.697592"
}

Pavlović, J., Kostić Kravljanac, L., Bosnić, P., Kirkby, E. A.,& Nikolic, M.. (2021). Interactions of Silicon With Essential and Beneficial Elements in Plants. in Frontiers in Plant Science
Frontiers Media Sa, Lausanne., 12.
https://doi.org/10.3389/fpls.2021.697592

Pavlović J, Kostić Kravljanac L, Bosnić P, Kirkby EA, Nikolic M. Interactions of Silicon With Essential and Beneficial Elements in Plants. in Frontiers in Plant Science. 2021;12.
doi:10.3389/fpls.2021.697592 .

Pavlović, Jelena, Kostić Kravljanac, Ljiljana, Bosnić, Predrag, Kirkby, Ernest A., Nikolic, Miroslav, "Interactions of Silicon With Essential and Beneficial Elements in Plants" in Frontiers in Plant Science, 12 (2021),
https://doi.org/10.3389/fpls.2021.697592 . .

TY  - JOUR
AU  - Nikolic, Miroslav
AU  - Kirkby, Ernest A.
AU  - Cakmak, Ismail
PY  - 2014
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/755
PB  - Springer, Dordrecht
T2  - Plant and Soil
T1  - Obituary for Professor Volker Romheld (1941-2013)
EP  - 48
IS  - 1-2
SP  - 47
VL  - 383
DO  - 10.1007/s11104-014-2185-7
ER  - 

@article{
author = "Nikolic, Miroslav and Kirkby, Ernest A. and Cakmak, Ismail",
year = "2014",
publisher = "Springer, Dordrecht",
journal = "Plant and Soil",
title = "Obituary for Professor Volker Romheld (1941-2013)",
pages = "48-47",
number = "1-2",
volume = "383",
doi = "10.1007/s11104-014-2185-7"
}

Nikolic, M., Kirkby, E. A.,& Cakmak, I.. (2014). Obituary for Professor Volker Romheld (1941-2013). in Plant and Soil
Springer, Dordrecht., 383(1-2), 47-48.
https://doi.org/10.1007/s11104-014-2185-7

Nikolic M, Kirkby EA, Cakmak I. Obituary for Professor Volker Romheld (1941-2013). in Plant and Soil. 2014;383(1-2):47-48.
doi:10.1007/s11104-014-2185-7 .

Nikolic, Miroslav, Kirkby, Ernest A., Cakmak, Ismail, "Obituary for Professor Volker Romheld (1941-2013)" in Plant and Soil, 383, no. 1-2 (2014):47-48,
https://doi.org/10.1007/s11104-014-2185-7 . .

TY  - JOUR
AU  - Nikolic, Miroslav
AU  - Nikolić, Nina
AU  - Liang, Yongchao
AU  - Kirkby, Ernest A.
AU  - Romheld, V
PY  - 2007
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/176
AB  - A basic problem in silicon (Si) uptake studies in biology is the lack of an appropriate radioactive isotope. Radioactive germanium-68 (Ge-68) has been used previously as a Si tracer in biological materials, but its suitability for the study of Si transport in higher plants is still untested. In this study, we investigated Ge-68-traced Si uptake by four crop species differing widely in uptake capacity for Si, including rice (Oryza sativa), barley (Hordeum vulgare), cucumber (Cucumis sativus), and tomato (Lycopersicon esculentum). Maintenance of a Ge-68:Si molar ratio that was similar in the plant tissues of all four plant species to that supplied in the nutrient solution over a wide range of Si concentrations demonstrated the absence of discrimination between Ge-68 and Si. Further, using the Ge-68 tracer, a typical Michaelis-Menten uptake kinetics for Si was found in rice, barley, and cucumber. Compared to rice, the relative proportion of root-to-shoot translocated Si was lower in barley and cucumber and especially in tomato (only 30%). Uptake and translocation of Si in rice, barley, and cucumber (Si accumulators) were strongly inhibited by 2,4-dinitrophenol and HgCl2, but in tomato, as a Si-excluding species, both inhibitors produced the opposite effect. In conclusion, our results suggest the use of the Ge-68 tracer method as an appropriate choice for future studies of Si transport in plants. Our findings also indicate that the restriction of Si from symplast to apoplast in the cortex of Si excluders is a metabolically active process.
PB  - Amer Soc Plant Biologists, Rockville
T2  - Plant Physiology
T1  - Germanium-68 as an Adequate Tracer for Silicon Transport in Plants. Characterization of Silicon Uptake in Different Crop Species
EP  - 503
IS  - 1
SP  - 495
VL  - 143
DO  - 10.1104/pp.106.090845
ER  - 

@article{
author = "Nikolic, Miroslav and Nikolić, Nina and Liang, Yongchao and Kirkby, Ernest A. and Romheld, V",
year = "2007",
abstract = "A basic problem in silicon (Si) uptake studies in biology is the lack of an appropriate radioactive isotope. Radioactive germanium-68 (Ge-68) has been used previously as a Si tracer in biological materials, but its suitability for the study of Si transport in higher plants is still untested. In this study, we investigated Ge-68-traced Si uptake by four crop species differing widely in uptake capacity for Si, including rice (Oryza sativa), barley (Hordeum vulgare), cucumber (Cucumis sativus), and tomato (Lycopersicon esculentum). Maintenance of a Ge-68:Si molar ratio that was similar in the plant tissues of all four plant species to that supplied in the nutrient solution over a wide range of Si concentrations demonstrated the absence of discrimination between Ge-68 and Si. Further, using the Ge-68 tracer, a typical Michaelis-Menten uptake kinetics for Si was found in rice, barley, and cucumber. Compared to rice, the relative proportion of root-to-shoot translocated Si was lower in barley and cucumber and especially in tomato (only 30%). Uptake and translocation of Si in rice, barley, and cucumber (Si accumulators) were strongly inhibited by 2,4-dinitrophenol and HgCl2, but in tomato, as a Si-excluding species, both inhibitors produced the opposite effect. In conclusion, our results suggest the use of the Ge-68 tracer method as an appropriate choice for future studies of Si transport in plants. Our findings also indicate that the restriction of Si from symplast to apoplast in the cortex of Si excluders is a metabolically active process.",
publisher = "Amer Soc Plant Biologists, Rockville",
journal = "Plant Physiology",
title = "Germanium-68 as an Adequate Tracer for Silicon Transport in Plants. Characterization of Silicon Uptake in Different Crop Species",
pages = "503-495",
number = "1",
volume = "143",
doi = "10.1104/pp.106.090845"
}

Nikolic, M., Nikolić, N., Liang, Y., Kirkby, E. A.,& Romheld, V.. (2007). Germanium-68 as an Adequate Tracer for Silicon Transport in Plants. Characterization of Silicon Uptake in Different Crop Species. in Plant Physiology
Amer Soc Plant Biologists, Rockville., 143(1), 495-503.
https://doi.org/10.1104/pp.106.090845

Nikolic M, Nikolić N, Liang Y, Kirkby EA, Romheld V. Germanium-68 as an Adequate Tracer for Silicon Transport in Plants. Characterization of Silicon Uptake in Different Crop Species. in Plant Physiology. 2007;143(1):495-503.
doi:10.1104/pp.106.090845 .

Nikolic, Miroslav, Nikolić, Nina, Liang, Yongchao, Kirkby, Ernest A., Romheld, V, "Germanium-68 as an Adequate Tracer for Silicon Transport in Plants. Characterization of Silicon Uptake in Different Crop Species" in Plant Physiology, 143, no. 1 (2007):495-503,
https://doi.org/10.1104/pp.106.090845 . .