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Stability and Robustness of an Organelle Number Control System: Modeling and Measuring Homeostatic Regulation of Centriole Abundance
Biophysical Journal; 9/1/2007; Marshall, Wallace F; 787 words
; ... report we examine the control of centriole copy number. We develop a simple ... approach we show that segregation of centrioles by the mitotic spindle can shape the specificity of the steady-state centriole number distribution but is neither ...
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IVF failure rate linked to defect in sperm
The Independent - London; 10/26/1999; Cherry Norton Health Correspondent; 461 words
; ... poor swimming ability to a defective centriole in the neck of the sperm, which explains ... injecting sperm that have a defective centriole all we end up with is an embryo that ... international symposium in Rome. The centriole, found just behind the sperm head, allows ...
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 "AAP General News (Australia)")
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Fed: sperm to blame for more infertility scientists
AAP General News (Australia); 10/25/1999; 144 words
; AAP General News (Australia) 10-25-1999 Fed: sperm to blame for more infertility ... defect in a tiny aspect on the neck of the sperm called the centriole. He says a defective or absent centriole stops the embryo from dividing, which is the basis of ...
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"Imperfections and oddities" in the origin of the nucleus
Paleobiology; 1/1/2005; Margulis, Lynn; Dolan, Michael F; Whiteside, Jessica H; 787 words
; ... undulipodium (the "9(2)+0" kinetosome/centriole and its shaft, the "9(2)+2"microtubular ... microtubule-associated proteins (MAPs). MAPs include an ATPase called dynein ... pericentrin (Table 1). Microtubules and MAPs constitute the main structural elements ...
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Distinctive cytoskeletal organization in erythrocytes of the cold-seep Vesicomyid clam, Calyptogena kilmeri.
The Biological Bulletin; 2/1/1998; Cohen, William D. Tamburri, Mario N.; 787 words
; ... demonstrated by experimentally induced MB reassembly in the living cells (Nemhauser et al., 1983) - and is presumed to be the same centriole that was involved in MB biogenesis during erythrocyte differentiation. Erythrocytes of the Australian species A. trapezia ...
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Comparative development of the spermatozoids of cycads and Ginkgo biloba.
The Botanical Review; 1/1/2004; Norstog, Knut J. Gifford, Ernest M. Stevenson, Dennis Wm.; 787 words
; ... but follow Gifford and Lin (1974, 1975) in referring to the centriole-like units forming the cortex of the blepharoplast as probasal ... relationships in cycads and Ginkgo of blepharoplast probasal bodies to centrioles and flagellar basal bodies (Figs. 1-4 and 8-10), the formation ...
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Cover.
The Biological Bulletin; 8/1/2000; 294 words
; ... chitons is that the sperm organelles are apparently abandoned in a membrane bag on the egg surface. If this is indeed the case, then inheritance, not only of mitochondria, but also of centrioles and other cytoplasmic components, would be maternal.
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Letters
The Scientist; 6/30/2003; Anonymous; 787 words
; ... photosynthesis, flagellar motility and assembly; centriole/basal body biochemistry and formation ... organelles of higher eukaryotic cells (centrioles, flagella, etc.), it is even more useful ... a variety of cell organelles (e.g., centrioles, flagella, nuclei). A central library ...
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[gamma]-Tubulin in Basal Land Plants: Characterization, Localization, and Implication in the Evolution of Acentriolar Microtubule Organizing Centers
Plant Cell; 1/1/2004; Shimamura, Masaki; Brown, Roy C; Lemmon, Betty E; Akashi, Tomohiro; Et al; 787 words
; ... basal land plants (e.g., discrete centrosomes with and without centrioles and the plastid surface in monoplastidic meiosis of bryophytes ... the centrosome, a compound structure composed of a central centriole pair embedded in an amorphous matrix with astral microtubules ...
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Secrets of a Cellular Machine: New Clues to the Architecture of Flagella and Cilia.
Ascribe Higher Education News Service; 7/31/2006; 787 words
; ... attaches the axoneme to the cell, called the basal body, consists of nine relatively short triplets. A similar structure, the centriole, organizes the microtubules that attach to chromosomes during cell division.) Given that we had a large supply of axonemes ...
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