Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200053 (University of Belgrade, Institute for Multidisciplinary Research)

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Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 451-03-68/2020-14/200053 (University of Belgrade, Institute for Multidisciplinary Research) (en)
Ministarstvo prosvete, nauke i tehnološkog razvoja Republike Srbije, Ugovor br. 451-03-68/2020-14/200053 (Univerzitet u Beogradu, Institut za multidisciplinarna istraživanja) (sr_RS)
Министарство просвете, науке и технолошког развоја Републике Србије, Уговор бр. 451-03-68/2020-14/200053 (Универзитет у Београду, Институт за мултидисциплинарна истраживања) (sr)
Authors

Publications

Immobilization of yeast cell walls with surface displayed laccase from Streptomyces cyaneus within dopamine-alginate beads for dye decolorization

Popović, Nikolina; Pržulj, Dunja; Mladenović, Maja; Prodanović, Olivera; Ece, Selin; Ilić Đurđić, Karla; Ostafe, Raluca; Fischer, Rainer; Prodanović, Radivoje

(2021)

TY  - JOUR
AU  - Popović, Nikolina
AU  - Pržulj, Dunja
AU  - Mladenović, Maja
AU  - Prodanović, Olivera
AU  - Ece, Selin
AU  - Ilić Đurđić, Karla
AU  - Ostafe, Raluca
AU  - Fischer, Rainer
AU  - Prodanović, Radivoje
PY  - 2021
UR  - https://www.sciencedirect.com/science/article/pii/S0141813021008813
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/4404
AB  - High amounts of toxic textile dyes are released into the environment due to coloring and wastewaters treatment processes' inefficiency. To remove dyes from the environment and wastewaters, researchers focused on applying immobilized enzymes due to mild reaction conditions and enzyme nontoxicity. Laccases are oxidases with wide substrate specificity, capable of degradation of many different dye types. Laccase from Streptomyces cyaneus was expressed on the surface of Saccharomyces cerevisiae EBY100 cells. The specific activity of surface-displayed laccase was increased by toluene-induced lysis to 3.1 U/g of cell walls. For cell wall laccase immobilization within hydrogel beads, alginate was modified by dopamine using periodate oxidation and reductive amination and characterized by UV–Vis, FTIR, and NMR spectroscopy. Cell wall laccase was immobilized within alginate and dopamine-alginate beads additionally cross-linked by oxygen and laccase. The immobilized enzyme's specific activity was two times higher using dopamine-alginate compared to native alginate beads, and immobilization yield increased 16 times. Cell wall laccase immobilized within dopamine-alginate beads decolorized Amido Black 10B, Reactive Black 5, Evans Blue, and Remazol Brilliant Blue with 100% efficiency and after ten rounds of multiple-use retained decolorization efficiency of 90% with Evans Blue and 61% with Amido Black.
T2  - International Journal of Biological Macromolecules
T1  - Immobilization of yeast cell walls with surface displayed laccase from Streptomyces cyaneus within dopamine-alginate beads for dye decolorization
VL  - 181
SP  - 1072
EP  - 1080
DO  - 10.1016/j.ijbiomac.2021.04.115
ER  - 
@article{
author = "Popović, Nikolina and Pržulj, Dunja and Mladenović, Maja and Prodanović, Olivera and Ece, Selin and Ilić Đurđić, Karla and Ostafe, Raluca and Fischer, Rainer and Prodanović, Radivoje",
year = "2021",
url = "https://www.sciencedirect.com/science/article/pii/S0141813021008813, http://cherry.chem.bg.ac.rs/handle/123456789/4404",
abstract = "High amounts of toxic textile dyes are released into the environment due to coloring and wastewaters treatment processes' inefficiency. To remove dyes from the environment and wastewaters, researchers focused on applying immobilized enzymes due to mild reaction conditions and enzyme nontoxicity. Laccases are oxidases with wide substrate specificity, capable of degradation of many different dye types. Laccase from Streptomyces cyaneus was expressed on the surface of Saccharomyces cerevisiae EBY100 cells. The specific activity of surface-displayed laccase was increased by toluene-induced lysis to 3.1 U/g of cell walls. For cell wall laccase immobilization within hydrogel beads, alginate was modified by dopamine using periodate oxidation and reductive amination and characterized by UV–Vis, FTIR, and NMR spectroscopy. Cell wall laccase was immobilized within alginate and dopamine-alginate beads additionally cross-linked by oxygen and laccase. The immobilized enzyme's specific activity was two times higher using dopamine-alginate compared to native alginate beads, and immobilization yield increased 16 times. Cell wall laccase immobilized within dopamine-alginate beads decolorized Amido Black 10B, Reactive Black 5, Evans Blue, and Remazol Brilliant Blue with 100% efficiency and after ten rounds of multiple-use retained decolorization efficiency of 90% with Evans Blue and 61% with Amido Black.",
journal = "International Journal of Biological Macromolecules",
title = "Immobilization of yeast cell walls with surface displayed laccase from Streptomyces cyaneus within dopamine-alginate beads for dye decolorization",
volume = "181",
pages = "1072-1080",
doi = "10.1016/j.ijbiomac.2021.04.115"
}
Popović, N., Pržulj, D., Mladenović, M., Prodanović, O., Ece, S., Ilić Đurđić, K., Ostafe, R., Fischer, R.,& Prodanović, R. (2021). Immobilization of yeast cell walls with surface displayed laccase from Streptomyces cyaneus within dopamine-alginate beads for dye decolorization.
International Journal of Biological Macromolecules, 181, 1072-1080.
https://doi.org/10.1016/j.ijbiomac.2021.04.115
Popović N, Pržulj D, Mladenović M, Prodanović O, Ece S, Ilić Đurđić K, Ostafe R, Fischer R, Prodanović R. Immobilization of yeast cell walls with surface displayed laccase from Streptomyces cyaneus within dopamine-alginate beads for dye decolorization. International Journal of Biological Macromolecules. 2021;181:1072-1080
Popović Nikolina, Pržulj Dunja, Mladenović Maja, Prodanović Olivera, Ece Selin, Ilić Đurđić Karla, Ostafe Raluca, Fischer Rainer, Prodanović Radivoje, "Immobilization of yeast cell walls with surface displayed laccase from Streptomyces cyaneus within dopamine-alginate beads for dye decolorization" International Journal of Biological Macromolecules, 181 (2021):1072-1080,
https://doi.org/10.1016/j.ijbiomac.2021.04.115 .
3

Supplementary data for the article: Popović, N.; Pržulj, D.; Mladenović, M.; Prodanović, O.; Ece, S.; Ilić Đurđić, K.; Ostafe, R.; Fischer, R.; Prodanović, R. Immobilization of Yeast Cell Walls with Surface Displayed Laccase from Streptomyces Cyaneus within Dopamine-Alginate Beads for Dye Decolorization. International Journal of Biological Macromolecules 2021, 181, 1072–1080. https://doi.org/10.1016/j.ijbiomac.2021.04.115.

Popović, Nikolina; Pržulj, Dunja; Mladenović, Maja; Prodanović, Olivera; Ece, Selin; Ilić Đurđić, Karla; Ostafe, Raluca; Fischer, Rainer; Prodanović, Radivoje

(2021)

TY  - BOOK
AU  - Popović, Nikolina
AU  - Pržulj, Dunja
AU  - Mladenović, Maja
AU  - Prodanović, Olivera
AU  - Ece, Selin
AU  - Ilić Đurđić, Karla
AU  - Ostafe, Raluca
AU  - Fischer, Rainer
AU  - Prodanović, Radivoje
PY  - 2021
UR  - https://www.sciencedirect.com/science/article/pii/S0141813021008813
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/4405
T2  - International Journal of Biological Macromolecules
T1  - Supplementary data for the article: Popović, N.; Pržulj, D.; Mladenović, M.; Prodanović, O.; Ece, S.; Ilić Đurđić, K.; Ostafe, R.; Fischer, R.; Prodanović, R. Immobilization of Yeast Cell Walls with Surface Displayed Laccase from Streptomyces Cyaneus within Dopamine-Alginate Beads for Dye Decolorization. International Journal of Biological Macromolecules 2021, 181, 1072–1080. https://doi.org/10.1016/j.ijbiomac.2021.04.115.
ER  - 
@book{
author = "Popović, Nikolina and Pržulj, Dunja and Mladenović, Maja and Prodanović, Olivera and Ece, Selin and Ilić Đurđić, Karla and Ostafe, Raluca and Fischer, Rainer and Prodanović, Radivoje",
year = "2021",
url = "https://www.sciencedirect.com/science/article/pii/S0141813021008813, http://cherry.chem.bg.ac.rs/handle/123456789/4405",
journal = "International Journal of Biological Macromolecules",
title = "Supplementary data for the article: Popović, N.; Pržulj, D.; Mladenović, M.; Prodanović, O.; Ece, S.; Ilić Đurđić, K.; Ostafe, R.; Fischer, R.; Prodanović, R. Immobilization of Yeast Cell Walls with Surface Displayed Laccase from Streptomyces Cyaneus within Dopamine-Alginate Beads for Dye Decolorization. International Journal of Biological Macromolecules 2021, 181, 1072–1080. https://doi.org/10.1016/j.ijbiomac.2021.04.115."
}
Popović, N., Pržulj, D., Mladenović, M., Prodanović, O., Ece, S., Ilić Đurđić, K., Ostafe, R., Fischer, R.,& Prodanović, R. (2021). Supplementary data for the article: Popović, N.; Pržulj, D.; Mladenović, M.; Prodanović, O.; Ece, S.; Ilić Đurđić, K.; Ostafe, R.; Fischer, R.; Prodanović, R. Immobilization of Yeast Cell Walls with Surface Displayed Laccase from Streptomyces Cyaneus within Dopamine-Alginate Beads for Dye Decolorization. International Journal of Biological Macromolecules 2021, 181, 1072–1080. https://doi.org/10.1016/j.ijbiomac.2021.04.115..
International Journal of Biological Macromolecules.
Popović N, Pržulj D, Mladenović M, Prodanović O, Ece S, Ilić Đurđić K, Ostafe R, Fischer R, Prodanović R. Supplementary data for the article: Popović, N.; Pržulj, D.; Mladenović, M.; Prodanović, O.; Ece, S.; Ilić Đurđić, K.; Ostafe, R.; Fischer, R.; Prodanović, R. Immobilization of Yeast Cell Walls with Surface Displayed Laccase from Streptomyces Cyaneus within Dopamine-Alginate Beads for Dye Decolorization. International Journal of Biological Macromolecules 2021, 181, 1072–1080. https://doi.org/10.1016/j.ijbiomac.2021.04.115.. International Journal of Biological Macromolecules. 2021;
Popović Nikolina, Pržulj Dunja, Mladenović Maja, Prodanović Olivera, Ece Selin, Ilić Đurđić Karla, Ostafe Raluca, Fischer Rainer, Prodanović Radivoje, "Supplementary data for the article: Popović, N.; Pržulj, D.; Mladenović, M.; Prodanović, O.; Ece, S.; Ilić Đurđić, K.; Ostafe, R.; Fischer, R.; Prodanović, R. Immobilization of Yeast Cell Walls with Surface Displayed Laccase from Streptomyces Cyaneus within Dopamine-Alginate Beads for Dye Decolorization. International Journal of Biological Macromolecules 2021, 181, 1072–1080. https://doi.org/10.1016/j.ijbiomac.2021.04.115." International Journal of Biological Macromolecules (2021)

Immobilization of yeast cell walls with surface displayed laccase from Streptomyces cyaneus within dopamine-alginate beads for dye decolorization

Popović, Nikolina; Pržulj, Dunja; Mladenović, Maja; Prodanović, Olivera; Ece, Selin; Ilić Đurđić, Karla; Ostafe, Raluca; Fischer, Rainer; Prodanović, Radivoje

(2021)

TY  - JOUR
AU  - Popović, Nikolina
AU  - Pržulj, Dunja
AU  - Mladenović, Maja
AU  - Prodanović, Olivera
AU  - Ece, Selin
AU  - Ilić Đurđić, Karla
AU  - Ostafe, Raluca
AU  - Fischer, Rainer
AU  - Prodanović, Radivoje
PY  - 2021
UR  - https://www.sciencedirect.com/science/article/pii/S0141813021008813
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/4406
AB  - High amounts of toxic textile dyes are released into the environment due to coloring and wastewaters treatment processes' inefficiency. To remove dyes from the environment and wastewaters, researchers focused on applying immobilized enzymes due to mild reaction conditions and enzyme nontoxicity. Laccases are oxidases with wide substrate specificity, capable of degradation of many different dye types. Laccase from Streptomyces cyaneus was expressed on the surface of Saccharomyces cerevisiae EBY100 cells. The specific activity of surface-displayed laccase was increased by toluene-induced lysis to 3.1 U/g of cell walls. For cell wall laccase immobilization within hydrogel beads, alginate was modified by dopamine using periodate oxidation and reductive amination and characterized by UV–Vis, FTIR, and NMR spectroscopy. Cell wall laccase was immobilized within alginate and dopamine-alginate beads additionally cross-linked by oxygen and laccase. The immobilized enzyme's specific activity was two times higher using dopamine-alginate compared to native alginate beads, and immobilization yield increased 16 times. Cell wall laccase immobilized within dopamine-alginate beads decolorized Amido Black 10B, Reactive Black 5, Evans Blue, and Remazol Brilliant Blue with 100% efficiency and after ten rounds of multiple-use retained decolorization efficiency of 90% with Evans Blue and 61% with Amido Black.
T2  - International Journal of Biological Macromolecules
T1  - Immobilization of yeast cell walls with surface displayed laccase from Streptomyces cyaneus within dopamine-alginate beads for dye decolorization
VL  - 181
SP  - 1072
EP  - 1080
DO  - 10.1016/j.ijbiomac.2021.04.115
ER  - 
@article{
author = "Popović, Nikolina and Pržulj, Dunja and Mladenović, Maja and Prodanović, Olivera and Ece, Selin and Ilić Đurđić, Karla and Ostafe, Raluca and Fischer, Rainer and Prodanović, Radivoje",
year = "2021",
url = "https://www.sciencedirect.com/science/article/pii/S0141813021008813, http://cherry.chem.bg.ac.rs/handle/123456789/4406",
abstract = "High amounts of toxic textile dyes are released into the environment due to coloring and wastewaters treatment processes' inefficiency. To remove dyes from the environment and wastewaters, researchers focused on applying immobilized enzymes due to mild reaction conditions and enzyme nontoxicity. Laccases are oxidases with wide substrate specificity, capable of degradation of many different dye types. Laccase from Streptomyces cyaneus was expressed on the surface of Saccharomyces cerevisiae EBY100 cells. The specific activity of surface-displayed laccase was increased by toluene-induced lysis to 3.1 U/g of cell walls. For cell wall laccase immobilization within hydrogel beads, alginate was modified by dopamine using periodate oxidation and reductive amination and characterized by UV–Vis, FTIR, and NMR spectroscopy. Cell wall laccase was immobilized within alginate and dopamine-alginate beads additionally cross-linked by oxygen and laccase. The immobilized enzyme's specific activity was two times higher using dopamine-alginate compared to native alginate beads, and immobilization yield increased 16 times. Cell wall laccase immobilized within dopamine-alginate beads decolorized Amido Black 10B, Reactive Black 5, Evans Blue, and Remazol Brilliant Blue with 100% efficiency and after ten rounds of multiple-use retained decolorization efficiency of 90% with Evans Blue and 61% with Amido Black.",
journal = "International Journal of Biological Macromolecules",
title = "Immobilization of yeast cell walls with surface displayed laccase from Streptomyces cyaneus within dopamine-alginate beads for dye decolorization",
volume = "181",
pages = "1072-1080",
doi = "10.1016/j.ijbiomac.2021.04.115"
}
Popović, N., Pržulj, D., Mladenović, M., Prodanović, O., Ece, S., Ilić Đurđić, K., Ostafe, R., Fischer, R.,& Prodanović, R. (2021). Immobilization of yeast cell walls with surface displayed laccase from Streptomyces cyaneus within dopamine-alginate beads for dye decolorization.
International Journal of Biological Macromolecules, 181, 1072-1080.
https://doi.org/10.1016/j.ijbiomac.2021.04.115
Popović N, Pržulj D, Mladenović M, Prodanović O, Ece S, Ilić Đurđić K, Ostafe R, Fischer R, Prodanović R. Immobilization of yeast cell walls with surface displayed laccase from Streptomyces cyaneus within dopamine-alginate beads for dye decolorization. International Journal of Biological Macromolecules. 2021;181:1072-1080
Popović Nikolina, Pržulj Dunja, Mladenović Maja, Prodanović Olivera, Ece Selin, Ilić Đurđić Karla, Ostafe Raluca, Fischer Rainer, Prodanović Radivoje, "Immobilization of yeast cell walls with surface displayed laccase from Streptomyces cyaneus within dopamine-alginate beads for dye decolorization" International Journal of Biological Macromolecules, 181 (2021):1072-1080,
https://doi.org/10.1016/j.ijbiomac.2021.04.115 .
3

High-performance hydrogen evolution electrocatalysis using proton-intercalated TiO2 nanotube arrays as interactive supports for Ir nanoparticles

Lačnjevac, Uroš; Vasilić, Rastko; Dobrota, Ana; Đurđić, Slađana Z.; Tomanec, Ondřej; Zbořil, Radek; Mohajernia, Shiva; Nguyen, Nhat Truong; Skorodumova, Natalia; Manojlović, Dragan D.; Elezović, Nevenka; Pašti, Igor; Schmuki, Patrik

(Royal Society of Chemistry, 2020)

TY  - JOUR
AU  - Lačnjevac, Uroš
AU  - Vasilić, Rastko
AU  - Dobrota, Ana
AU  - Đurđić, Slađana Z.
AU  - Tomanec, Ondřej
AU  - Zbořil, Radek
AU  - Mohajernia, Shiva
AU  - Nguyen, Nhat Truong
AU  - Skorodumova, Natalia
AU  - Manojlović, Dragan D.
AU  - Elezović, Nevenka
AU  - Pašti, Igor
AU  - Schmuki, Patrik
PY  - 2020
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/4288
AB  - Developing ultraefficient electrocatalytic materials for the hydrogen evolution reaction (HER) with low content of expensive platinum group metals (PGMs) via low-energy-input procedures is the key to the successful commercialization of green water electrolysis technologies for sustainable production of high-purity hydrogen. In this study, we report a facile room-temperature synthesis of ultrafine metallic Ir nanoparticles on conductive, proton-intercalated TiO2 nanotube (H-TNT) arrays via galvanic displacement. A series of experiments demonstrate that a controlled transformation of the H-TNT surface microstructure from neat open-top tubes to disordered nanostripe bundles (“nanograss”) is highly beneficial for providing an abundance of exposed Ir active sites. Consequently, for nanograss-engineered composites, outstanding HER activity metrics are achieved even at very low Ir(III) precursor concentrations. An optimum Ir@TNT cathode loaded with 5.7 μgIr cm−2 exhibits an overpotential of −63 mV at −100 mA cm−2 and a mass activity of 34 A mgIr−1 at −80 mV under acidic conditions, along with excellent catalytic durability and structural integrity. Density functional theory (DFT) simulations reveal that the hydrogen-rich TiO2 surface not only stabilizes the deposited Ir and weakens its H binding strength to a moderate intensity, but also actively takes part in the HER mechanism by refreshing the Ir catalytic sites near the Ir|H–TiO2 interface, thus substantially promoting H2 generation. The comprehensive characterization combined with theory provides an in-depth understanding of the electrocatalytic behavior of H-TNT supported PGM nanoparticles and demonstrates their high potential as competitive electrocatalyst systems for the HER.
PB  - Royal Society of Chemistry
T2  - Journal of Materials Chemistry A
T1  - High-performance hydrogen evolution electrocatalysis using proton-intercalated TiO2 nanotube arrays as interactive supports for Ir nanoparticles
VL  - 8
IS  - 43
SP  - 22773
EP  - 22790
DO  - 10.1039/D0TA07492F
ER  - 
@article{
author = "Lačnjevac, Uroš and Vasilić, Rastko and Dobrota, Ana and Đurđić, Slađana Z. and Tomanec, Ondřej and Zbořil, Radek and Mohajernia, Shiva and Nguyen, Nhat Truong and Skorodumova, Natalia and Manojlović, Dragan D. and Elezović, Nevenka and Pašti, Igor and Schmuki, Patrik",
year = "2020",
url = "http://cherry.chem.bg.ac.rs/handle/123456789/4288",
abstract = "Developing ultraefficient electrocatalytic materials for the hydrogen evolution reaction (HER) with low content of expensive platinum group metals (PGMs) via low-energy-input procedures is the key to the successful commercialization of green water electrolysis technologies for sustainable production of high-purity hydrogen. In this study, we report a facile room-temperature synthesis of ultrafine metallic Ir nanoparticles on conductive, proton-intercalated TiO2 nanotube (H-TNT) arrays via galvanic displacement. A series of experiments demonstrate that a controlled transformation of the H-TNT surface microstructure from neat open-top tubes to disordered nanostripe bundles (“nanograss”) is highly beneficial for providing an abundance of exposed Ir active sites. Consequently, for nanograss-engineered composites, outstanding HER activity metrics are achieved even at very low Ir(III) precursor concentrations. An optimum Ir@TNT cathode loaded with 5.7 μgIr cm−2 exhibits an overpotential of −63 mV at −100 mA cm−2 and a mass activity of 34 A mgIr−1 at −80 mV under acidic conditions, along with excellent catalytic durability and structural integrity. Density functional theory (DFT) simulations reveal that the hydrogen-rich TiO2 surface not only stabilizes the deposited Ir and weakens its H binding strength to a moderate intensity, but also actively takes part in the HER mechanism by refreshing the Ir catalytic sites near the Ir|H–TiO2 interface, thus substantially promoting H2 generation. The comprehensive characterization combined with theory provides an in-depth understanding of the electrocatalytic behavior of H-TNT supported PGM nanoparticles and demonstrates their high potential as competitive electrocatalyst systems for the HER.",
publisher = "Royal Society of Chemistry",
journal = "Journal of Materials Chemistry A",
title = "High-performance hydrogen evolution electrocatalysis using proton-intercalated TiO2 nanotube arrays as interactive supports for Ir nanoparticles",
volume = "8",
number = "43",
pages = "22773-22790",
doi = "10.1039/D0TA07492F"
}
Lačnjevac, U., Vasilić, R., Dobrota, A., Đurđić, S. Z., Tomanec, O., Zbořil, R., Mohajernia, S., Nguyen, N. T., Skorodumova, N., Manojlović, D. D., Elezović, N., Pašti, I.,& Schmuki, P. (2020). High-performance hydrogen evolution electrocatalysis using proton-intercalated TiO2 nanotube arrays as interactive supports for Ir nanoparticles.
Journal of Materials Chemistry A
Royal Society of Chemistry., 8(43), 22773-22790.
https://doi.org/10.1039/D0TA07492F
Lačnjevac U, Vasilić R, Dobrota A, Đurđić SZ, Tomanec O, Zbořil R, Mohajernia S, Nguyen NT, Skorodumova N, Manojlović DD, Elezović N, Pašti I, Schmuki P. High-performance hydrogen evolution electrocatalysis using proton-intercalated TiO2 nanotube arrays as interactive supports for Ir nanoparticles. Journal of Materials Chemistry A. 2020;8(43):22773-22790
Lačnjevac Uroš, Vasilić Rastko, Dobrota Ana, Đurđić Slađana Z., Tomanec Ondřej, Zbořil Radek, Mohajernia Shiva, Nguyen Nhat Truong, Skorodumova Natalia, Manojlović Dragan D., Elezović Nevenka, Pašti Igor, Schmuki Patrik, "High-performance hydrogen evolution electrocatalysis using proton-intercalated TiO2 nanotube arrays as interactive supports for Ir nanoparticles" Journal of Materials Chemistry A, 8, no. 43 (2020):22773-22790,
https://doi.org/10.1039/D0TA07492F .
1
7
5

Leaf Soluble Sugars and Free Amino Acids as Important Components of Abscisic Acid—Mediated Drought Response in Tomato

Živanović, Bojana; Milić Komić, Sonja; Tosti, Tomislav; Vidović, Marija; Prokić, Ljiljana; Veljović Jovanović, Sonja

(MDPI, 2020)

TY  - JOUR
AU  - Živanović, Bojana
AU  - Milić Komić, Sonja
AU  - Tosti, Tomislav
AU  - Vidović, Marija
AU  - Prokić, Ljiljana
AU  - Veljović Jovanović, Sonja
PY  - 2020
UR  - http://cherry.chem.bg.ac.rs/handle/123456789/4266
AB  - Water deficit has a global impact on plant growth and crop yield. Climate changes are going to increase the intensity, duration and frequency of severe droughts, particularly in southern and south-eastern Europe, elevating the water scarcity issues. We aimed to assess the contribution of endogenous abscisic acid (ABA) in the protective mechanisms against water deficit, including stomatal conductance, relative water potential and the accumulation of osmoprotectants, as well as on growth parameters. To achieve that, we used a suitable model system, ABA-deficient tomato mutant, flacca and its parental line. Flacca mutant exhibited constitutively higher levels of soluble sugars (e.g., galactose, arabinose, sorbitol) and free amino acids (AAs) compared with the wild type (WT). Water deficit provoked the strong accumulation of proline in both genotypes, and total soluble sugars only in flacca. Upon re-watering, these osmolytes returned to the initial levels in both genotypes. Our results indicate that flacca compensated higher stomatal conductance with a higher constitutive level of free sugars and AAs. Additionally, we suggest that the accumulation of AAs, particularly proline and its precursors and specific branched-chain AAs in both, glucose and sucrose in flacca, and sorbitol in WT, could contribute to maintaining growth rate during water deficit and recovery in both tomato genotypes.
PB  - MDPI
T2  - Plants
T1  - Leaf Soluble Sugars and Free Amino Acids as Important Components of Abscisic Acid—Mediated Drought Response in Tomato
VL  - 9
IS  - 9
SP  - 1147
DO  - 10.3390/plants9091147
ER  - 
@article{
author = "Živanović, Bojana and Milić Komić, Sonja and Tosti, Tomislav and Vidović, Marija and Prokić, Ljiljana and Veljović Jovanović, Sonja",
year = "2020",
url = "http://cherry.chem.bg.ac.rs/handle/123456789/4266",
abstract = "Water deficit has a global impact on plant growth and crop yield. Climate changes are going to increase the intensity, duration and frequency of severe droughts, particularly in southern and south-eastern Europe, elevating the water scarcity issues. We aimed to assess the contribution of endogenous abscisic acid (ABA) in the protective mechanisms against water deficit, including stomatal conductance, relative water potential and the accumulation of osmoprotectants, as well as on growth parameters. To achieve that, we used a suitable model system, ABA-deficient tomato mutant, flacca and its parental line. Flacca mutant exhibited constitutively higher levels of soluble sugars (e.g., galactose, arabinose, sorbitol) and free amino acids (AAs) compared with the wild type (WT). Water deficit provoked the strong accumulation of proline in both genotypes, and total soluble sugars only in flacca. Upon re-watering, these osmolytes returned to the initial levels in both genotypes. Our results indicate that flacca compensated higher stomatal conductance with a higher constitutive level of free sugars and AAs. Additionally, we suggest that the accumulation of AAs, particularly proline and its precursors and specific branched-chain AAs in both, glucose and sucrose in flacca, and sorbitol in WT, could contribute to maintaining growth rate during water deficit and recovery in both tomato genotypes.",
publisher = "MDPI",
journal = "Plants",
title = "Leaf Soluble Sugars and Free Amino Acids as Important Components of Abscisic Acid—Mediated Drought Response in Tomato",
volume = "9",
number = "9",
pages = "1147",
doi = "10.3390/plants9091147"
}
Živanović, B., Milić Komić, S., Tosti, T., Vidović, M., Prokić, L.,& Veljović Jovanović, S. (2020). Leaf Soluble Sugars and Free Amino Acids as Important Components of Abscisic Acid—Mediated Drought Response in Tomato.
Plants
MDPI., 9(9), 1147.
https://doi.org/10.3390/plants9091147
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