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INVESTIGATION OF Si-LIGNIN INTERACTION BY FLUORESCENCE TECHNIQUES AND ATOMIC FORCE MICROSCOPY- POSSIBLE APPLICATION IN AGRICULTURE

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2022
bitstream_4271.pdf (650.1Kb)
Authors
Bartolić, Dragana
Đikanović, Daniela
Stanković, Mira
Prokopijević, Miloš
Jovanović, Jelena
Dragišić Maksimović, Jelena
Radotić, Ksenija
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Abstract
Silica is beneficial element for plants. Many studies of silica show the useful effects that Si can provide on plant-environment relationships in a wide variety of crops, as increase in growth and yield and improvement of resistance to metal toxicity, salt stress, drought resistance etc. The occurrence of Si within a plant is a result of its uptake in the form of soluble Si(OH)4 or Si(OH)3O ion from the soil, and its polymerization at a final location. Si is mostly accumulated in the cell walls (CWs), thus providing strengthening of CWs, increasing mechanical strength, and alleviating effects of various biotic and abiotic types of stress. Lignin, as one of the main components of the plant CW, is a natural phenolic polymer with high molecular weight and complex structure. Accumulation of silica in plants is directly connected with chemistry and structure of lignin. Silicon affects the composition of CWs by its binding to the phenolic and carbohydrate CW components in polymerization reac...tions by altering linkages of non-cellulosic polymers and lignin. We studied, in an in vitro system, the interaction of SiO2 with the peroxidase catalyzed polymerization of a lignin monomer into the lignin model compound (DHP). Fluorescence microscopy and spectroscopy combined with AFM technique showed that Si was bound to the final polymer, and the structure of the Si-DHP differed from pure DHP. We show that Si significantly influence on lignin structure. The results contribute to understanding of Si binding to lignin in cell walls, which may have impact on possible Si applications in agriculture.

Keywords:
Silica / lignin / cell wall / fluorescence / AFM
Source:
XIII International Scientific Agriculture Symposium “AGROSYM 2022”, 2022, 341-
Publisher:
  • East Sarajevo : Faculty of Agriculture, 2022
Funding / projects:
  • Study of structure-function relationships in the plant cell wall and modifications of the wall structure by enzyme engineering (RS-173017)

ISBN: 978-99976-987-3-5

[ Google Scholar ]
Handle
https://hdl.handle.net/21.15107/rcub_rimsi_1704
URI
http://rimsi.imsi.bg.ac.rs/handle/123456789/1704
Collections
  • Radovi istraživača / Researchers’ publications
Institution/Community
Institut za multidisciplinarna istraživanja
TY  - CONF
AU  - Bartolić, Dragana
AU  - Đikanović, Daniela
AU  - Stanković, Mira
AU  - Prokopijević, Miloš
AU  - Jovanović, Jelena
AU  - Dragišić Maksimović, Jelena
AU  - Radotić, Ksenija
PY  - 2022
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1704
AB  - Silica is beneficial element for plants. Many studies of silica show the useful effects that Si can provide on plant-environment relationships in a wide variety of crops, as increase in growth and yield and improvement of resistance to metal toxicity, salt stress, drought resistance etc. The occurrence of Si within a plant is a result of its uptake in the form of soluble Si(OH)4 or Si(OH)3O ion from the soil, and its polymerization at a final location. Si is mostly accumulated in the cell walls (CWs), thus providing strengthening of CWs, increasing mechanical strength, and alleviating effects of various biotic and abiotic types of stress. Lignin, as one of the main components of the plant CW, is a natural phenolic polymer with high molecular weight and complex structure. Accumulation of silica in plants is directly connected with chemistry and structure of lignin. Silicon affects the composition of CWs by its binding to the phenolic and carbohydrate CW components in polymerization reactions by altering linkages of non-cellulosic polymers and lignin. We studied, in an in vitro system, the interaction of SiO2 with the peroxidase catalyzed polymerization of a lignin monomer into the lignin model compound (DHP). Fluorescence microscopy and spectroscopy combined with AFM technique showed that Si was bound to the final polymer, and the structure of the Si-DHP differed from pure DHP. We show that Si significantly influence on lignin structure. The results contribute to understanding of Si binding to lignin in cell walls, which may have impact on possible Si applications in agriculture.
PB  - East Sarajevo : Faculty of Agriculture, 2022
C3  - XIII International Scientific Agriculture Symposium “AGROSYM 2022”
T1  - INVESTIGATION OF Si-LIGNIN INTERACTION BY FLUORESCENCE TECHNIQUES AND ATOMIC FORCE MICROSCOPY- POSSIBLE APPLICATION IN AGRICULTURE
SP  - 341
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1704
ER  - 
@conference{
author = "Bartolić, Dragana and Đikanović, Daniela and Stanković, Mira and Prokopijević, Miloš and Jovanović, Jelena and Dragišić Maksimović, Jelena and Radotić, Ksenija",
year = "2022",
abstract = "Silica is beneficial element for plants. Many studies of silica show the useful effects that Si can provide on plant-environment relationships in a wide variety of crops, as increase in growth and yield and improvement of resistance to metal toxicity, salt stress, drought resistance etc. The occurrence of Si within a plant is a result of its uptake in the form of soluble Si(OH)4 or Si(OH)3O ion from the soil, and its polymerization at a final location. Si is mostly accumulated in the cell walls (CWs), thus providing strengthening of CWs, increasing mechanical strength, and alleviating effects of various biotic and abiotic types of stress. Lignin, as one of the main components of the plant CW, is a natural phenolic polymer with high molecular weight and complex structure. Accumulation of silica in plants is directly connected with chemistry and structure of lignin. Silicon affects the composition of CWs by its binding to the phenolic and carbohydrate CW components in polymerization reactions by altering linkages of non-cellulosic polymers and lignin. We studied, in an in vitro system, the interaction of SiO2 with the peroxidase catalyzed polymerization of a lignin monomer into the lignin model compound (DHP). Fluorescence microscopy and spectroscopy combined with AFM technique showed that Si was bound to the final polymer, and the structure of the Si-DHP differed from pure DHP. We show that Si significantly influence on lignin structure. The results contribute to understanding of Si binding to lignin in cell walls, which may have impact on possible Si applications in agriculture.",
publisher = "East Sarajevo : Faculty of Agriculture, 2022",
journal = "XIII International Scientific Agriculture Symposium “AGROSYM 2022”",
title = "INVESTIGATION OF Si-LIGNIN INTERACTION BY FLUORESCENCE TECHNIQUES AND ATOMIC FORCE MICROSCOPY- POSSIBLE APPLICATION IN AGRICULTURE",
pages = "341",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1704"
}
Bartolić, D., Đikanović, D., Stanković, M., Prokopijević, M., Jovanović, J., Dragišić Maksimović, J.,& Radotić, K.. (2022). INVESTIGATION OF Si-LIGNIN INTERACTION BY FLUORESCENCE TECHNIQUES AND ATOMIC FORCE MICROSCOPY- POSSIBLE APPLICATION IN AGRICULTURE. in XIII International Scientific Agriculture Symposium “AGROSYM 2022”
East Sarajevo : Faculty of Agriculture, 2022., 341.
https://hdl.handle.net/21.15107/rcub_rimsi_1704
Bartolić D, Đikanović D, Stanković M, Prokopijević M, Jovanović J, Dragišić Maksimović J, Radotić K. INVESTIGATION OF Si-LIGNIN INTERACTION BY FLUORESCENCE TECHNIQUES AND ATOMIC FORCE MICROSCOPY- POSSIBLE APPLICATION IN AGRICULTURE. in XIII International Scientific Agriculture Symposium “AGROSYM 2022”. 2022;:341.
https://hdl.handle.net/21.15107/rcub_rimsi_1704 .
Bartolić, Dragana, Đikanović, Daniela, Stanković, Mira, Prokopijević, Miloš, Jovanović, Jelena, Dragišić Maksimović, Jelena, Radotić, Ksenija, "INVESTIGATION OF Si-LIGNIN INTERACTION BY FLUORESCENCE TECHNIQUES AND ATOMIC FORCE MICROSCOPY- POSSIBLE APPLICATION IN AGRICULTURE" in XIII International Scientific Agriculture Symposium “AGROSYM 2022” (2022):341,
https://hdl.handle.net/21.15107/rcub_rimsi_1704 .

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