Confined-microtubule assembly shapes three-dimensional cell wall structures in xylem vessels. Sasaki, T., Saito, K., Inoue, D., Serk, H., Sugiyama, Y., Pesquet, E., Shimamoto, Y., & Oda, Y. Nature Communications, 14(1):6987, November, 2023. Number: 1 Publisher: Nature Publishing Group![Confined-microtubule assembly shapes three-dimensional cell wall structures in xylem vessels [link]](https://bibbase.org/img/filetypes/link.svg "link")
Paper doi abstract bibtex Properly patterned deposition of cell wall polymers is prerequisite for the morphogenesis of plant cells. A cortical microtubule array guides the two-dimensional pattern of cell wall deposition. Yet, the mechanism underlying the three-dimensional patterning of cell wall deposition is poorly understood. In metaxylem vessels, cell wall arches are formed over numerous pit membranes, forming highly organized three-dimensional cell wall structures. Here, we show that the microtubule-associated proteins, MAP70-5 and MAP70-1, regulate arch development. The map70-1 map70-5 plants formed oblique arches in an abnormal orientation in pits. Microtubules fit the aperture of developing arches in wild-type cells, whereas microtubules in map70-1 map70-5 cells extended over the boundaries of pit arches. MAP70 caused the bending and bundling of microtubules. These results suggest that MAP70 confines microtubules within the pit apertures by altering the physical properties of microtubules, thereby directing the growth of pit arches in the proper orientation. This study provides clues to understanding how plants develop three-dimensional structure of cell walls.
@article{sasaki_confined-microtubule_2023,
title = {Confined-microtubule assembly shapes three-dimensional cell wall structures in xylem vessels},
volume = {14},
copyright = {2023 The Author(s)},
issn = {2041-1723},
url = {https://www.nature.com/articles/s41467-023-42487-w},
doi = {10.1038/s41467-023-42487-w},
abstract = {Properly patterned deposition of cell wall polymers is prerequisite for the morphogenesis of plant cells. A cortical microtubule array guides the two-dimensional pattern of cell wall deposition. Yet, the mechanism underlying the three-dimensional patterning of cell wall deposition is poorly understood. In metaxylem vessels, cell wall arches are formed over numerous pit membranes, forming highly organized three-dimensional cell wall structures. Here, we show that the microtubule-associated proteins, MAP70-5 and MAP70-1, regulate arch development. The map70-1 map70-5 plants formed oblique arches in an abnormal orientation in pits. Microtubules fit the aperture of developing arches in wild-type cells, whereas microtubules in map70-1 map70-5 cells extended over the boundaries of pit arches. MAP70 caused the bending and bundling of microtubules. These results suggest that MAP70 confines microtubules within the pit apertures by altering the physical properties of microtubules, thereby directing the growth of pit arches in the proper orientation. This study provides clues to understanding how plants develop three-dimensional structure of cell walls.},
language = {en},
number = {1},
urldate = {2023-11-24},
journal = {Nature Communications},
author = {Sasaki, Takema and Saito, Kei and Inoue, Daisuke and Serk, Henrik and Sugiyama, Yuki and Pesquet, Edouard and Shimamoto, Yuta and Oda, Yoshihisa},
month = nov,
year = {2023},
note = {Number: 1
Publisher: Nature Publishing Group},
keywords = {Cell wall, Microtubules, Plant cytoskeleton},
pages = {6987},
}
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