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Structural characterisation and orientation of cell wall polymers in Arabidopsis thaliana stem

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2019
bitstream_4493.pdf (6.642Mb)
Authors
Simonović Radosavljević, Jasna
Stevanić, Jasna
Đikanović, Daniela
Mitrović, Aleksandra
Salmén, Lennart
Radotić, Ksenija
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Abstract
Plant cell walls are composed of a framework of cellulose microfibrils that are interconnected with heteropolysaccharides (lignin, hemicelluloses) in a specific manner. Plant cell walls form a large part of the plant body and define its characteristics. Structural organisation of the cell wall and related polymers is important for both mechanical properties of plants and chemical reactions occurring in the wall space, especially in the response to stress.By using imaging FTIR microscopy, run in transmission mode and at different polarisation modes (from 0° to 90°), it is possible to follow the chemical variability and the orientation of cell wall polymers (cellulose, hemicelluloses and lignin) of the Arabidopsis thaliana stem. The polarised FTIR measurements indicated that both xylan and lignin have parallel orientation with regard to the orientation of cellulose. It is believed that this structuring of lignin in the S2 layer of the cell wall might be a result of the spatial... constraints within the cell wall, occuring due to the previous deposition of cellulose/hemicellulose in a strongly oriented assembly.

Keywords:
cell wall / FTIR microscopy / cellulose / lignin
Source:
13th Symposium on the Flora of Southeastern Serbia and Neighboring Regions, 2019, 110-110-
Publisher:
  • Insitute for Nature Conservation of Serbia
  • Faculty of Science and Mathematics, Niš
Funding / projects:
  • Study of structure-function relationships in the plant cell wall and modifications of the wall structure by enzyme engineering (RS-173017)
  • Varijacije spoljašnje morfologije, gustine i unutrašnje arhitekture kostiju u odnosu na pol, starost i mehanički stres kod savremenih i arheoloških populacija (RS-145012)

ISBN: 978-86-80877-67-9

[ Google Scholar ]
Handle
https://hdl.handle.net/21.15107/rcub_rimsi_1758
URI
http://rimsi.imsi.bg.ac.rs/handle/123456789/1758
Collections
  • Radovi istraživača / Researchers’ publications
Institution/Community
Institut za multidisciplinarna istraživanja
TY  - CONF
AU  - Simonović Radosavljević, Jasna
AU  - Stevanić, Jasna
AU  - Đikanović, Daniela
AU  - Mitrović, Aleksandra
AU  - Salmén, Lennart
AU  - Radotić, Ksenija
PY  - 2019
UR  - http://rimsi.imsi.bg.ac.rs/handle/123456789/1758
AB  - Plant cell walls are composed of a framework of cellulose microfibrils that are
interconnected with heteropolysaccharides (lignin, hemicelluloses) in a specific
manner. Plant cell walls form a large part of the plant body and define its
characteristics. Structural organisation of the cell wall and related polymers is
important for both mechanical properties of plants and chemical reactions occurring
in the wall space, especially in the response to stress.By using imaging FTIR
microscopy, run in transmission mode and at different polarisation modes (from 0° to
90°), it is possible to follow the chemical variability and the orientation of cell wall
polymers (cellulose, hemicelluloses and lignin) of the Arabidopsis thaliana stem. The
polarised FTIR measurements indicated that both xylan and lignin have parallel
orientation with regard to the orientation of cellulose. It is believed that this structuring
of lignin in the S2 layer of the cell wall might be a result of the spatial constraints
within the cell wall, occuring due to the previous deposition of
cellulose/hemicellulose in a strongly oriented assembly.
PB  - Insitute for Nature Conservation of Serbia
PB  - Faculty of Science and Mathematics, Niš
C3  - 13th Symposium on the Flora of Southeastern Serbia and Neighboring Regions
T1  - Structural characterisation and orientation of cell wall polymers in Arabidopsis thaliana stem
SP  - 110-110
UR  - https://hdl.handle.net/21.15107/rcub_rimsi_1758
ER  - 
@conference{
author = "Simonović Radosavljević, Jasna and Stevanić, Jasna and Đikanović, Daniela and Mitrović, Aleksandra and Salmén, Lennart and Radotić, Ksenija",
year = "2019",
abstract = "Plant cell walls are composed of a framework of cellulose microfibrils that are
interconnected with heteropolysaccharides (lignin, hemicelluloses) in a specific
manner. Plant cell walls form a large part of the plant body and define its
characteristics. Structural organisation of the cell wall and related polymers is
important for both mechanical properties of plants and chemical reactions occurring
in the wall space, especially in the response to stress.By using imaging FTIR
microscopy, run in transmission mode and at different polarisation modes (from 0° to
90°), it is possible to follow the chemical variability and the orientation of cell wall
polymers (cellulose, hemicelluloses and lignin) of the Arabidopsis thaliana stem. The
polarised FTIR measurements indicated that both xylan and lignin have parallel
orientation with regard to the orientation of cellulose. It is believed that this structuring
of lignin in the S2 layer of the cell wall might be a result of the spatial constraints
within the cell wall, occuring due to the previous deposition of
cellulose/hemicellulose in a strongly oriented assembly.",
publisher = "Insitute for Nature Conservation of Serbia, Faculty of Science and Mathematics, Niš",
journal = "13th Symposium on the Flora of Southeastern Serbia and Neighboring Regions",
title = "Structural characterisation and orientation of cell wall polymers in Arabidopsis thaliana stem",
pages = "110-110",
url = "https://hdl.handle.net/21.15107/rcub_rimsi_1758"
}
Simonović Radosavljević, J., Stevanić, J., Đikanović, D., Mitrović, A., Salmén, L.,& Radotić, K.. (2019). Structural characterisation and orientation of cell wall polymers in Arabidopsis thaliana stem. in 13th Symposium on the Flora of Southeastern Serbia and Neighboring Regions
Insitute for Nature Conservation of Serbia., 110-110.
https://hdl.handle.net/21.15107/rcub_rimsi_1758
Simonović Radosavljević J, Stevanić J, Đikanović D, Mitrović A, Salmén L, Radotić K. Structural characterisation and orientation of cell wall polymers in Arabidopsis thaliana stem. in 13th Symposium on the Flora of Southeastern Serbia and Neighboring Regions. 2019;:110-110.
https://hdl.handle.net/21.15107/rcub_rimsi_1758 .
Simonović Radosavljević, Jasna, Stevanić, Jasna, Đikanović, Daniela, Mitrović, Aleksandra, Salmén, Lennart, Radotić, Ksenija, "Structural characterisation and orientation of cell wall polymers in Arabidopsis thaliana stem" in 13th Symposium on the Flora of Southeastern Serbia and Neighboring Regions (2019):110-110,
https://hdl.handle.net/21.15107/rcub_rimsi_1758 .

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