Cytoplasmic streaming
From Wikipedia, the free encyclopedia
 |
This article needs attention from an expert in Molecular and Cellular Biology. (February 2009) |
 |
This article includes a list of references, related reading or external links, but its sources remain unclear because it lacks inline citations. (August 2009) |
Cytoplasmic streaming is the directed flow of cytosol (the liquid component of the cytoplasm) and organelles around large fungal and plant cells through the mediation of actin. This movement aids in the delivery of nutrients, metabolites, genetic information, and other materials to all parts of the cell. Cytoplasmic streaming occurs along actin filaments in the cytoskeleton of the cell.
Cyclosis is the circulation or streaming of the cytoplasm within some living cells. In plant cells, chloroplasts may be moved around with the stream, possibly to a position of optimum light absorption for photosynthesis. The rate of motion is usually affected by light exposure, temperature, and pH levels.
The flow of cytoplasm may be stopped by:
- Adding Lugol's iodine solution
- Adding Cytochalasin D (dissolved in dimethyl sulfoxide)
References [edit]
- Britannica
- Riddle, Donald L; Blumenthal, Thomas; Meyer, Barbara J et al., eds. (1997). "Section III: Establishment of Polarity in the One-Cell Embryo". C. elegans II (2nd ed.). Cold Spring Harbor (NY: Cold Spring Harbor Laboratory Press. ISBN 0-87969-532-3.
- Lodish, Harvey; Berk, Arnold; Zipursky, S Lawrence; Matsudaira, Paul; Baltimore, David; Darnell, James (2000). "Figure 18-40 Cytoplasmic streaming in cylindrical giant algae". Molecular Cell Biology (4th ed.). New York: W. H. Freeman. ISBN 0-7167-3136-3.
- Lodish 2000, Section 18.5: Actin and Myosin in Nonmuscle Cells
External links [edit]
- Measurement of Cyclosis in Elodea
- Video of Cyclosis in Canadian Pondweed
- Video of Cyclosis (Elodea).
 |
This cell biology article is a stub. You can help Wikipedia by expanding it. |
