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centriole

A Dictionary of Zoology | 1999 | | Â© A Dictionary of Zoology 1999, originally published by Oxford University Press 1999. (Hide copyright information) Copyright

centriole A hollow, cylindrical structure, normally one of a pair lying at right angles to one another, adjacent to the nuclear envelope in animal cells, and composed of nine sets of microtubules, each set arranged in triplets. Centrioles are thought to be organizers of microtubular structures in these cells, and during cell division a pair is found at each pole of the mitotic spindle.

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MICHAEL ALLABY. "centriole." A Dictionary of Zoology. 1999. Encyclopedia.com. 15 Nov. 2009 <http://www.encyclopedia.com>.

MICHAEL ALLABY. "centriole." A Dictionary of Zoology. 1999. Encyclopedia.com. (November 15, 2009). http://www.encyclopedia.com/doc/1O8-centriole.html

MICHAEL ALLABY. "centriole." A Dictionary of Zoology. 1999. Retrieved November 15, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O8-centriole.html

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	Drosophila asterless and Vertebrate Cep152 Are Orthologs Essential for Centriole Duplication Magazine article from: Genetics; 12/1/2008; ; 700+ words ; ...critical early in centriole duplication. CENTRIOLES are microtubule...ciliary axoneme. Centrioles duplicate only...forming a daughter centriole perpendicularly...initiation of centriole duplication...do not have centrioles and therefore...
	Stability and Robustness of an Organelle Number Control System: Modeling and Measuring Homeostatic Regulation of Centriole Abundance Magazine article from: Biophysical Journal; 9/1/2007; ; 700+ words ; ...that segregation of centrioles by the mitotic spindle...the steady-state centriole number distribution...can restore correct centriole copy number following...require association of centrioles with the mitotic spindle...involves modulation of centriole assembly as a function...
	Findings from University of California in biology reported. Newspaper article from: Science Letter; 10/6/2009; 700+ words ; ...contains exactly two centrioles, linked together...which is a mother centriole formed in a previous...with defects in centriole linkage. asq2 mutant...variable numbers of centrioles and centriole positioning defects...
	New life sciences study findings have been reported from National Institute of Diabetes and Digestive and Kidney Disease. Newspaper article from: Diabetes Week; 1/26/2009; 700+ words ; ...circumstances, centrioles can also selfassemble...free of an existing centriole (de novo assembly...only one daughter centriole is assembled per mother centriole." Song and colleagues...In Cell Biology (Centrioles: some self-assembly...
	Research on cancer research discussed by scientists at University of Pittsburgh. Newspaper article from: Cancer Weekly; 10/6/2009; 700+ words ; ...to maternal centrioles and that CUL1...suppressing centriole over-duplication...at maternal centrioles. PLK4 is required for centriole duplication...excessive daughter centriole formation at maternal centrioles. [Cancer Res...
	Researchers from University of California detail new studies and findings in the area of molecular biology. Newspaper article from: Science Letter; 4/21/2009; 700+ words ; ...of the preexisting centriole proteome from the green...the significance of centrioles in normal human tissue...WD40 domaincontaining centriole protein. We found...asymmetrical pattern in mature centrioles corresponding to sites...caused a reduction in centriole duplication, whereas...
	CSHL scientists discover link between control of chromosome duplication and segregation. Newspaper article from: NewsRx Health; 3/1/2009; 700+ words ; ...machines called centrioles. These duplicate...to produce two centriole pairs. Stillman...controls the number of centrioles in a cell. Before...engagement of the paired centrioles that stops the original centriole pair from duplicating...
	Investigators at University of California publish new data on genetics. Newspaper article from: Life Science Weekly; 11/3/2009; 700+ words ; ...localization to centrioles requires SAS...into the outer centriole wall. Unlike...functionality of centrioles, defining the...not required for centriole assembly but instead confers on centrioles the capacity to...
	Suppressors of zyg-1 Define Regulators of Centrosome Duplication and Nuclear Association in Caenorhabditis elegans Magazine article from: Genetics; 5/1/2007; ; 700+ words ; ...mother and daughter centrioles, which move a short...orthogonal orientation. Centriole synthesis then initiates...each preexisting centriole. Finally, the...complete daughter centrioles. The two resulting centriole pairs ultimately...
	Studies from Harvard University, Medical Department describe new findings in genetics. Newspaper article from: Life Science Weekly; 2/10/2009; 700+ words ; ...research from the United States, "The centriole is tire core structure of centrosome and cilium. Failure to restrict centriole duplication to once per cell cycle...medical importance, the mechanism of centriole formation is poorly understood...

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Related entries from encyclopedias, dictionaries, and thesauruses

	centriole Book article from: A Dictionary of Nursing centriole ( sen -tri-ohl) n. a small particle found in the cytoplasm of cells, near the nucleus. Centrioles are involved in the formation of the spindle and aster during cell division.
	Mitosis Book article from: Biology ...of small cylindrical bodies called centrioles. The centriole pairs replicate and then the two pairs of centrioles begin to move with their centrosomes...of microtubules that reach from each centriole pair across the cell toward the other...
	mitosis Book article from: The Columbia Encyclopedia, Sixth Edition ...begins to form. In animal cells the centrioles separate and move apart, and radiating...them. Some sets of fiber run from one centriole to the other; these are the spindle...plant cells the spindle forms without centrioles. During metaphase the chromosomes congregate...
	Cell Cycle and Cell Division Book article from: World of Microbiology and Immunology ...joined at a special region, the centromere. Structures called centrioles position themselves across from each other, at either end...zipper). One arm of each chromosome will migrate toward each centriole, pulled by the spindle fibers. During the final stage of...
	centrosome Book article from: A Dictionary of Biology ...The centrosomes of most animal cells contain a pair of centrioles . During metaphase of mitosis and meiosis, the centrosome separates into two regions, each containing one of the centrioles (where present). The two regions move to opposite...