On growth and formins

Plant Signaling & Behavior
Fatima CvrčkováViktor Žárský

Abstract

Development of the plant aerial organs epidermis involves a complex interplay of cytoskeletal rearrangements, membrane trafficking-dependent cell surface expansion, and intra- and intercellular signaling, resulting in a pattern of perfectly interlocking pavement cells. While recent detailed in vivo observations convincingly identify microtubules rather than actin as key players at the early stages of development of pavement cell lobes in Arabidopsis, mutations affecting the actin-nucleating ARP2/3 complex are long known to reduce pavement cell lobing, suggesting a central role for actin. We have now shown that functional impairment of the Arabidopsis formin FH1 enhances both microtubule dynamics and pavement cell lobing. While formins are best known for their ability to nucleate actin, many members of this old gene family now emerge as direct or indirect regulators of the microtubule cytoskeleton, and our findings suggest that they might co-ordinate action of the two cytoskeletal systems during pavement cell morphogenesis.

References

Mar 17, 2005·BioEssays : News and Reviews in Molecular, Cellular and Developmental Biology·Jaideep Mathur
Jun 6, 2009·The New Phytologist·Viktor ŽárskýMichal Hála
Jul 28, 2009·Biochimica Et Biophysica Acta·F Bartolini, G G Gundersen
Jan 19, 2011·The Plant Journal : for Cell and Molecular Biology·Alexandre MartinièreJohn Runions
Dec 21, 2012·The New Phytologist·Miroslava K ZhiponovaEugenia Russinova
Dec 7, 2013·Frontiers in Plant Science·Alexander Ivakov, Staffan Persson
Dec 30, 2014·International Journal of Molecular Sciences·Fatima CvrčkováViktor Žárský
Jan 8, 2016·Plant & Cell Physiology·Amparo RoseroFatima Cvrčková
Sep 1, 2014·Functional Plant Biology : FPB·Eveline JacquesKris Vissenberg

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