Staff Publications

Staff Publications

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    'Staff publications' is the digital repository of Wageningen University & Research

    'Staff publications' contains references to publications authored by Wageningen University staff from 1976 onward.

    Publications authored by the staff of the Research Institutes are available from 1995 onwards.

    Full text documents are added when available. The database is updated daily and currently holds about 240,000 items, of which 72,000 in open access.

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Record number 415324
Title Golgi body motility in the plant cell cortex correlates with actin cytoskeleton organization
Author(s) Akkerman, M.; Overdijk, O.; Schel, J.H.N.; Emons, A.M.C.; Ketelaar, T.
Source Plant and Cell Physiology 52 (2011)10. - ISSN 0032-0781 - p. 1844 - 1855.
Department(s) Laboratory of Cell Biology
Publication type Refereed Article in a scientific journal
Publication year 2011
Keyword(s) arabidopsis root hairs - nod factors induce - class-xi myosins - cortical microtubules - latrunculin b - pollen-tube - growth - elongation - expansion - reveals
Abstract The actin cytoskeleton is involved in the transport and positioning of Golgi bodies, but the actin-based processes that determine the positioning and motility behavior of Golgi bodies are not well understood. In this work, we have studied the relationship between Golgi body motility behavior and actin organization in intercalary growing root epidermal cells during different developmental stages. We show that in these cells two distinct actin configurations are present, depending on the developmental stage. In small cells of the early root elongation zone, fine filamentous actin (F-actin) occupies the whole cell, including the cortex. In larger cells in the late elongation zone that have almost completed cell elongation, actin filament bundles are interspersed with areas containing this fine F-actin and areas without F-actin. Golgi bodies in areas with the fine F-actin exhibit a non-directional, wiggling type of motility. Golgi bodies in areas containing actin filament bundles move up to 7 µm s-1. Since the motility of Golgi bodies changes when they enter an area with a different actin configuration, we conclude that the type of movement depends on the actin organization and not on the individual organelle. Our results show that the positioning of Golgi bodies depends on the local actin organization
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