Xylem parenchyma cell walls lack a gravitropic response in conifer compression wood
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2015
Authors
Donaldson, Lloyd
Nanayakkara, Bernadette

Radotić, Ksenija

Đikanović, Daniela

Mitrović, Aleksandra

Bogdanović Pristov, Jelena

Simonović Radosavljević, Jasna

Kalauzi, Aleksandar

Article (Published version)

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Cell wall fluorescence and immunocytochemistry demonstrate that xylem parenchyma cell walls do not show changes in structure and composition related to gravitropic response comparable to those of tracheids, even when they have lignified secondary cell walls. Tracheid cell walls in compression wood have altered composition and structure which generates the strain responsible for correction of stem lean as part of the gravitropic response of woody plants. Xylem parenchyma cell walls vary among conifer species and can be lignified secondary walls (spruce) or unlignified primary walls (pine). It can be expected that xylem parenchyma with lignified secondary cell walls might show features of compression wood comparable to those of tracheids that have a similar type of cell wall. A comparison of xylem parenchyma cell walls in normal and compression wood in species with lignified and non-lignified parenchyma cell walls provides a unique opportunity to understand the process of reaction wood f...ormation in conifers. Using both UV/visible fluorescence microscopy of cell wall fluorophores and immunocytochemistry of galactan and mannan epitopes, we demonstrate that xylem parenchyma cell walls do not show the changes in composition and structure typical of compression wood tracheids. Adjacent cells of different types but with similar cell wall structure can undergo cell wall developmental changes related to support or defence functions independent of their neighbours. Tracheids are sensitive to gravitropic signals while xylem parenchyma cells are not.
Keywords:
Xylem parenchyma / Suberin / Mannan / Lignification / Galactan / Compression wood / Cell wallSource:
Planta, 2015, 242, 6, 1413-1424Publisher:
- Springer, New York
Funding / projects:
- Study of structure-function relationships in the plant cell wall and modifications of the wall structure by enzyme engineering (RS-173017)
- New Zealand Ministry of Business Innovation and EmploymentNew Zealand Ministry of Business, Innovation and Employment (MBIE)
DOI: 10.1007/s00425-015-2381-6
ISSN: 0032-0935
PubMed: 26287313
WoS: 000363042600011
Scopus: 2-s2.0-84944352247
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Institut za multidisciplinarna istraživanjaTY - JOUR AU - Donaldson, Lloyd AU - Nanayakkara, Bernadette AU - Radotić, Ksenija AU - Đikanović, Daniela AU - Mitrović, Aleksandra AU - Bogdanović Pristov, Jelena AU - Simonović Radosavljević, Jasna AU - Kalauzi, Aleksandar PY - 2015 UR - http://rimsi.imsi.bg.ac.rs/handle/123456789/844 AB - Cell wall fluorescence and immunocytochemistry demonstrate that xylem parenchyma cell walls do not show changes in structure and composition related to gravitropic response comparable to those of tracheids, even when they have lignified secondary cell walls. Tracheid cell walls in compression wood have altered composition and structure which generates the strain responsible for correction of stem lean as part of the gravitropic response of woody plants. Xylem parenchyma cell walls vary among conifer species and can be lignified secondary walls (spruce) or unlignified primary walls (pine). It can be expected that xylem parenchyma with lignified secondary cell walls might show features of compression wood comparable to those of tracheids that have a similar type of cell wall. A comparison of xylem parenchyma cell walls in normal and compression wood in species with lignified and non-lignified parenchyma cell walls provides a unique opportunity to understand the process of reaction wood formation in conifers. Using both UV/visible fluorescence microscopy of cell wall fluorophores and immunocytochemistry of galactan and mannan epitopes, we demonstrate that xylem parenchyma cell walls do not show the changes in composition and structure typical of compression wood tracheids. Adjacent cells of different types but with similar cell wall structure can undergo cell wall developmental changes related to support or defence functions independent of their neighbours. Tracheids are sensitive to gravitropic signals while xylem parenchyma cells are not. PB - Springer, New York T2 - Planta T1 - Xylem parenchyma cell walls lack a gravitropic response in conifer compression wood EP - 1424 IS - 6 SP - 1413 VL - 242 DO - 10.1007/s00425-015-2381-6 ER -
@article{ author = "Donaldson, Lloyd and Nanayakkara, Bernadette and Radotić, Ksenija and Đikanović, Daniela and Mitrović, Aleksandra and Bogdanović Pristov, Jelena and Simonović Radosavljević, Jasna and Kalauzi, Aleksandar", year = "2015", abstract = "Cell wall fluorescence and immunocytochemistry demonstrate that xylem parenchyma cell walls do not show changes in structure and composition related to gravitropic response comparable to those of tracheids, even when they have lignified secondary cell walls. Tracheid cell walls in compression wood have altered composition and structure which generates the strain responsible for correction of stem lean as part of the gravitropic response of woody plants. Xylem parenchyma cell walls vary among conifer species and can be lignified secondary walls (spruce) or unlignified primary walls (pine). It can be expected that xylem parenchyma with lignified secondary cell walls might show features of compression wood comparable to those of tracheids that have a similar type of cell wall. A comparison of xylem parenchyma cell walls in normal and compression wood in species with lignified and non-lignified parenchyma cell walls provides a unique opportunity to understand the process of reaction wood formation in conifers. Using both UV/visible fluorescence microscopy of cell wall fluorophores and immunocytochemistry of galactan and mannan epitopes, we demonstrate that xylem parenchyma cell walls do not show the changes in composition and structure typical of compression wood tracheids. Adjacent cells of different types but with similar cell wall structure can undergo cell wall developmental changes related to support or defence functions independent of their neighbours. Tracheids are sensitive to gravitropic signals while xylem parenchyma cells are not.", publisher = "Springer, New York", journal = "Planta", title = "Xylem parenchyma cell walls lack a gravitropic response in conifer compression wood", pages = "1424-1413", number = "6", volume = "242", doi = "10.1007/s00425-015-2381-6" }
Donaldson, L., Nanayakkara, B., Radotić, K., Đikanović, D., Mitrović, A., Bogdanović Pristov, J., Simonović Radosavljević, J.,& Kalauzi, A.. (2015). Xylem parenchyma cell walls lack a gravitropic response in conifer compression wood. in Planta Springer, New York., 242(6), 1413-1424. https://doi.org/10.1007/s00425-015-2381-6
Donaldson L, Nanayakkara B, Radotić K, Đikanović D, Mitrović A, Bogdanović Pristov J, Simonović Radosavljević J, Kalauzi A. Xylem parenchyma cell walls lack a gravitropic response in conifer compression wood. in Planta. 2015;242(6):1413-1424. doi:10.1007/s00425-015-2381-6 .
Donaldson, Lloyd, Nanayakkara, Bernadette, Radotić, Ksenija, Đikanović, Daniela, Mitrović, Aleksandra, Bogdanović Pristov, Jelena, Simonović Radosavljević, Jasna, Kalauzi, Aleksandar, "Xylem parenchyma cell walls lack a gravitropic response in conifer compression wood" in Planta, 242, no. 6 (2015):1413-1424, https://doi.org/10.1007/s00425-015-2381-6 . .