Journal article
Microtubule-mediated wall anisotropy contributes to leaf blade flattening
- Abstract:
- Plant organs can adopt a wide range of shapes, resulting from highly directional cell growth and divisions. We focus here on leaves and leaf-like organs in Arabidopsis and tomato, characterized by the formation of thin, flat laminae. Combining experimental approaches with 3D mechanical modeling, we provide evidence that leaf shape depends on cortical microtubule mediated cellulose deposition along the main predicted stress orientations, in particular, along the adaxial-abaxial axis in internal cell walls. This behavior can be explained by a mechanical feedback and has the potential to sustain and even amplify a preexisting degree of flatness, which in turn depends on genes involved in the control of organ polarity and leaf margin formation.
- Publication status:
- Published
- Peer review status:
- Peer reviewed
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(Preview, Version of record, pdf, 7.2MB, Terms of use)
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- Publisher copy:
- 10.1016/j.cub.2020.07.076
Authors
- Publisher:
- Elsevier
- Journal:
- Current Biology More from this journal
- Volume:
- 30
- Issue:
- 20
- Pages:
- 3972-3985.e6
- Publication date:
- 2020-09-10
- Acceptance date:
- 2020-07-27
- DOI:
- EISSN:
-
1879-0445
- ISSN:
-
0960-9822
- Pmid:
-
32916107
- Language:
-
English
- Keywords:
- Pubs id:
-
1131543
- Local pid:
-
pubs:1131543
- Deposit date:
-
2020-12-17
- ARK identifier:
Terms of use
- Copyright holder:
- Zhao et al.
- Copyright date:
- 2020
- Rights statement:
- Copyright 2020 The Author(s). Published by Elsevier Inc. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
- Licence:
- CC Attribution-NonCommercial-NoDerivatives (CC BY-NC-ND)
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