FTIR analysis of xylem vessel cell walls in twining stem of Dioscorea balcanica
Authors
Simonović Radosavljević, Jasna
Radotić, Ksenija

Janošević, Dušica
Mouille, Gregory
Mitrović, Aleksandra

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Using stem cross sections of Dioscorea balcanica, as a model, we detected changes in anatomy and structural organization of xylem vessel cell walls (CWs) linked to stem twining in liana plants. UV microscopy, scanning electron microscopy and Fourier transform infrared (FTIR) microspectrometry were used. Different microfibrils orientation in vessel CWs of twisted compared to straight internodes, revealed by histological examination, coincide with the lower lignin content, the lower amount of xylan and cellulose, and the higher amount of xyloglucan, showed by FTIR. Xylem vessels resist high mechanical strain developed in twisted internodes by decreased CW rigidity (lower lignin content) and extensibility (higher xyloglucan content), and increased elasticity (lower xylan content).
Keywords:
FTIR analysis, xylem vessel cell walls, liana plantsSource:
15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, 2021, I, 312-315Publisher:
- Society of Physical Chemists of Serbia
Funding / projects:
- Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200053 (University of Belgrade, Institute for Multidisciplinary Research) (RS-200053)
- Ministry of Education, Science and Technological Development, Republic of Serbia, Grant no. 200178 (University of Belgrade, Faculty of Biology) (RS-200178)
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Institut za multidisciplinarna istraživanjaTY - CONF AU - Simonović Radosavljević, Jasna AU - Radotić, Ksenija AU - Janošević, Dušica AU - Mouille, Gregory AU - Mitrović, Aleksandra PY - 2021 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/1822 AB - Using stem cross sections of Dioscorea balcanica, as a model, we detected changes in anatomy and structural organization of xylem vessel cell walls (CWs) linked to stem twining in liana plants. UV microscopy, scanning electron microscopy and Fourier transform infrared (FTIR) microspectrometry were used. Different microfibrils orientation in vessel CWs of twisted compared to straight internodes, revealed by histological examination, coincide with the lower lignin content, the lower amount of xylan and cellulose, and the higher amount of xyloglucan, showed by FTIR. Xylem vessels resist high mechanical strain developed in twisted internodes by decreased CW rigidity (lower lignin content) and extensibility (higher xyloglucan content), and increased elasticity (lower xylan content). PB - Society of Physical Chemists of Serbia C3 - 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry T1 - FTIR analysis of xylem vessel cell walls in twining stem of Dioscorea balcanica EP - 315 SP - 312 VL - I UR - https://hdl.handle.net/21.15107/rcub_rimsi_1822 ER -
@conference{ author = "Simonović Radosavljević, Jasna and Radotić, Ksenija and Janošević, Dušica and Mouille, Gregory and Mitrović, Aleksandra", year = "2021", abstract = "Using stem cross sections of Dioscorea balcanica, as a model, we detected changes in anatomy and structural organization of xylem vessel cell walls (CWs) linked to stem twining in liana plants. UV microscopy, scanning electron microscopy and Fourier transform infrared (FTIR) microspectrometry were used. Different microfibrils orientation in vessel CWs of twisted compared to straight internodes, revealed by histological examination, coincide with the lower lignin content, the lower amount of xylan and cellulose, and the higher amount of xyloglucan, showed by FTIR. Xylem vessels resist high mechanical strain developed in twisted internodes by decreased CW rigidity (lower lignin content) and extensibility (higher xyloglucan content), and increased elasticity (lower xylan content).", publisher = "Society of Physical Chemists of Serbia", journal = "15th International Conference on Fundamental and Applied Aspects of Physical Chemistry", title = "FTIR analysis of xylem vessel cell walls in twining stem of Dioscorea balcanica", pages = "315-312", volume = "I", url = "https://hdl.handle.net/21.15107/rcub_rimsi_1822" }
Simonović Radosavljević, J., Radotić, K., Janošević, D., Mouille, G.,& Mitrović, A.. (2021). FTIR analysis of xylem vessel cell walls in twining stem of Dioscorea balcanica. in 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry Society of Physical Chemists of Serbia., I, 312-315. https://hdl.handle.net/21.15107/rcub_rimsi_1822
Simonović Radosavljević J, Radotić K, Janošević D, Mouille G, Mitrović A. FTIR analysis of xylem vessel cell walls in twining stem of Dioscorea balcanica. in 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry. 2021;I:312-315. https://hdl.handle.net/21.15107/rcub_rimsi_1822 .
Simonović Radosavljević, Jasna, Radotić, Ksenija, Janošević, Dušica, Mouille, Gregory, Mitrović, Aleksandra, "FTIR analysis of xylem vessel cell walls in twining stem of Dioscorea balcanica" in 15th International Conference on Fundamental and Applied Aspects of Physical Chemistry, I (2021):312-315, https://hdl.handle.net/21.15107/rcub_rimsi_1822 .