Effect of cortex stiffness variation on cleavage in animal cells

Cytokinesis is the division of the cytoplasm and the plasma membrane into two. Nuclear division and cytokinesis take a relatively short time to happen in animal cells in which cytokinesis takes place by means of furrowing. Here we consider the cleavage of the animal cells only. Although the basic division mechanisms appear to be similar in all animal cells, the divisions that take place during early embryonic development, which are termed as cleavages, are not exactly the same as those that occur later. In early embryos cell divisions merely partition the existing cytoplasm without any apparent change in the total volume. During the cleavage period there is no growth. Animal cells attain a roughly spherical configuration before division. In these cells, cell division is concluded by the formation of a cleavage furrow in the equatorial plane that constricts the entire cell and finally squeezes it into two parts.


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Doebler, R; Basaran, N; Goldston, H; Holloway, PW (Elsevier BV, 1999-02-01)
Analysis of the binding of hydrophobic peptides or proteins to membranes generally assumes that the solute is monomeric in both the aqueous phase and the membrane. Simulations were performed to examine the effect of solute self-association in the aqueous phase on the binding of monomeric solute to lipid vesicles. Aggregation lowered the initial concentration of monomeric solute, which was then maintained at a relatively constant value at the expense of the aggregated solute, as the lipid concentration was i...
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Nanofiltration is a membrane process capable of separation of small molecules and multivalent ions due to their size and/or charge. NF is mainly used in aqueous applications. However, there are many processes that can take advantages of NF in molecules separation dissolved in organic solvents. Main challenge in Organic Solvent Nanofiltration is the limited number of membranes which can withstand a wide range solvents and have stable, predictable separation performance. Cellulose is an alternative polymer th...
Effects of Isoflurane, Halothane, and Chloroform on the Interactions and Lateral Organization of Lipids in the Liquid-Ordered Phase
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The first quantitative insight has been obtained into the effects that volatile anesthetics have on the interactions and lateral organization of lipids in model membranes that mimic "lipid rafts". Specifically, nearest-neighbor recogntion measurements, in combination with Monte Carlo simulations, have been used to investigate the action of isoflurane, halothane, and chloroform on the compactness and lateral organization of cholesterol-rich bilayers of 1,2-dipalmitoylsn-glycero-3-phosphocholine (DPPC) in the...
Impact of dietary calcium tetraborate supplementation on the mineral content of egg and eggshell of laying quails
İflazoğlu, Sera; İflazoğlu Mutlu, Seda; Şimsek, Ülkü Gülcihan; Mutlu, Muhsin; Tatlı Seven, Pınar; Yılmaz, Ayşen (2021-04-01)
Boron (B) is a trace element that plays an important role in the mineral, cell membrane, hormone, and enzyme metabolism of animals and humans. The aim of this study was to examine the effect of dietary calcium tetraborate (CaB4O7) supplementation on the mineral composition of egg content and eggshell of laying quails. For this purpose, a total of 20 male and 40 female quails, 6-week-old, were equally divided into 2 groups (control and additive groups) in 5 replicates (6 birds/replicate) and given CaB4O7...
Effect of g-quadruplex formation on uv-induced damage and nucleotide excision repair
Azgari, Cem; Adebali, Ogün (Orta Doğu Teknik Üniversitesi Enformatik Enstitüsü; 2022-10)
G-quadruplexes (G4s) are non-B DNA structures formed by four or more guanine tetrads stabilized by a charged ion. The formation and cellular functions of G4s are widely studied. G4s are known to localize at telomeres and promoters with a range of functions including maintaining genome integrity at telomeres and suppressing or initiating transcription. Moreover, G4s can cause mutagenesis if they stay persistent during replication [1]. Although thermodynamically stable G4s are linked to double-strand breaks a...
Citation Formats
N. AKKAS and M. KERMANIAN, “Effect of cortex stiffness variation on cleavage in animal cells,” 1993, vol. 84, p. 67, Accessed: 00, 2020. [Online]. Available: https://hdl.handle.net/11511/65382.