Environmental and endogenous control of cortical microtubule orientation

Chen, Xu and Wu, Shuang and Li, Zengyu and Friml, Jiří (2016) Environmental and endogenous control of cortical microtubule orientation. Trends in Cell Biology, 26 (6). pp. 409-419. ISSN 0962-8924

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Official URL: http://dx.doi.org/10.1016/j.tcb.2016.02.003

Abstract

Plant growth requires a tight coordination of cell shape and anisotropic expansion. Owing to their immobility, plant cells determine body architecture through the orientation of cell division and cell expansion. Microtubule cytoskeleton represents a versatile cellular structure essential for coordinating flexible cell morphogenesis. Previous studies have identified a large number of microtubule-associated regulators that control microtubule dynamics; however, the mechanisms by which microtubule reorientation responds to exogenous and environmental stimuli are largely unknown. In this review, we describe the molecular details of microtubule dynamics that are required for cortical microtubule array pattern formation, and recapitulate current knowledge on the mechanisms by which various environmental and endogenous stimuli control cortical microtubule reorientation. Microtubule reorientation requires the activity of microtubule-associated proteins, including regulators of microtubule nucleation, severing, polymerization (and depolymerization), bundling, and interactions with cellulose microfilaments.Predominant cortical microtubule orientations determine plant cell morphology and the direction of organ outgrowth.In response to endogenous and environmental signals, cortical microtubules reorient and form various array patterns.

Item Type: Article
DOI: 10.1016/j.tcb.2016.02.003
Uncontrolled Keywords: Auxin, microtubule, Environmental stimuli, Reorientation
Subjects: 500 Science > 580 Plants > 581 Botany
Research Group: Friml Group
SWORD Depositor: Sword Import User
Depositing User: Sword Import User
Date Deposited: 16 Apr 2018 11:39
Last Modified: 16 Apr 2018 11:39
URI: https://repository.ist.ac.at/id/eprint/1002

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