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Spine-Scale Reorientation in Apedinella radians (Pedinellales, Chrysophyceae): the Microarchitecture and Immunocytochemistry of the Associated Cytoskeleton
Citation
Koutoulis, A and McFadden, GI and Wetherbee, R, Spine-Scale Reorientation in Apedinella radians (Pedinellales, Chrysophyceae): the Microarchitecture and Immunocytochemistry of the Associated Cytoskeleton, Protoplasma: An International Journal of Cell Biology, 147, (1) pp. 25-41. ISSN 0033-183X (1988) [Refereed Article]
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Abstract
Motile unicells of Apedinella radians have the extraordinary ability
to instantaneously reorient six elongate spine-scales located on the
cell surface. Extracellular striated fibrous connectors (termed microligaments)
attach spine-scales to discrete regions of the plasma
membrane underlain by intricate cytoplasmic plaques. A complex
cytoskeleton is associated with the plaques and appears responsible for spine-scale movement. Three cytoskeletal proteins have thus far been identified by immunofluorescence using anti-tubulin, anti-actin, and anti-centrin. The three-dimensional configuration of the cytoskeleton has been established and consists of filamentous bundles of actin and centrin which form stellate systems interconnecting the plaques. Additionally, there is a network of microtubular triads which originate on the surface of the nuclear envelope and subtend the plasma membrane and also support several tentacular protrusions. It is proposed that contraction of the actin and/or centrin filamentous bundles is responsible for the reorientation of the spinescales.
Item Details
Item Type: | Refereed Article |
---|---|
Research Division: | Biological Sciences |
Research Group: | Plant biology |
Research Field: | Phycology (incl. marine grasses) |
Objective Division: | Expanding Knowledge |
Objective Group: | Expanding knowledge |
Objective Field: | Expanding knowledge in the biological sciences |
UTAS Author: | Koutoulis, A (Professor Anthony Koutoulis) |
ID Code: | 70918 |
Year Published: | 1988 |
Web of Science® Times Cited: | 37 |
Deposited By: | Research Division |
Deposited On: | 2011-07-05 |
Last Modified: | 2011-07-06 |
Downloads: | 0 |
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