BAUMANN, O (1992) STRUCTURAL INTERACTIONS OF ACTIN-FILAMENTS AND ENDOPLASMIC-RETICULUM IN HONEYBEE PHOTORECEPTOR CELLS. CELL AND TISSUE RESEARCH, 268 (1). pp. 71-79. ISSN 0302-766X,
Full text not available from this repository.Abstract
Fluorescent phallotoxins and heavy meromyosin were used to reveal the organization of the actin cytoskeleton in honeybee photoreceptor cells, and the relationship of actin filaments to the submicrovillar, palisade-like cisternae of the endoplasmic reticulum (ER). Bundles of unipolar actin filaments (pointed end towards the cell center) protrude from the microvillar bases and extend through cytoplasmic bridges that traverse the submicrovillar ER. Within the cytoplasmic bridges, the filaments are regularly spaced and tightly apposed to the ER membrane. In addition, actin filaments are deployed close to the microvillar bases to form a loose web. Actin filaments are scarce in cell areas remote from the rhabdom; these areas contain microtubule-associated ER domains. The results suggest that the actin system of the submicrovillar cytoplasm shapes the submicrovillar ER cisternae, and that the distinct ER domains interact with different cytoskeletal elements.
| Item Type: | Article |
|---|---|
| Uncontrolled Keywords: | RHABDOMERAL MICROVILLI; DRONE; ORGANELLES; MICROTUBULES; TOPOGRAPHY; APPARATUS; DYNAMICS; MOVEMENT; CALCIUM; MUSCLE; PHOTORECEPTOR CELLS; CYTOSKELETON; ACTIN FILAMENTS; ENDOPLASMIC RETICULUM, SMOOTH; APIS-MELLIFERA (INSECTA) |
| Depositing User: | Dr. Gernot Deinzer |
| Last Modified: | 19 Oct 2022 08:44 |
| URI: | https://pred.uni-regensburg.de/id/eprint/54584 |
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