What`s New in the Plant Cell Cycle?
... They do this if deprived of nutrient (Van’t Hof 1966) or if stressed in other ways such as low temperature (Francis and Barlow 1988). Such non-cycling cells are said to be in G0. A stunning example of G0 cells in the plant is the quiescent centre in root apical meristems (RAMs). First predicted and ...
... They do this if deprived of nutrient (Van’t Hof 1966) or if stressed in other ways such as low temperature (Francis and Barlow 1988). Such non-cycling cells are said to be in G0. A stunning example of G0 cells in the plant is the quiescent centre in root apical meristems (RAMs). First predicted and ...
What`s New in the Plant Cell Cycle?
... They do this if deprived of nutrient (Van’t Hof 1966) or if stressed in other ways such as low temperature (Francis and Barlow 1988). Such non-cycling cells are said to be in G0. A stunning example of G0 cells in the plant is the quiescent centre in root apical meristems (RAMs). First predicted and ...
... They do this if deprived of nutrient (Van’t Hof 1966) or if stressed in other ways such as low temperature (Francis and Barlow 1988). Such non-cycling cells are said to be in G0. A stunning example of G0 cells in the plant is the quiescent centre in root apical meristems (RAMs). First predicted and ...
Flat file for auto loading into the CBO 1.0 version. Individual sections
... single diploid cell undergoes two nuclear divisions following a single round of DNA replication in order to produce four daughter cells that contain half the number of chromosomes as the diploid cell. Meiotic division occurs during the formation of gametes from diploid organisms and at the beginning ...
... single diploid cell undergoes two nuclear divisions following a single round of DNA replication in order to produce four daughter cells that contain half the number of chromosomes as the diploid cell. Meiotic division occurs during the formation of gametes from diploid organisms and at the beginning ...
Insulin-Resistance, Browning
... In humans, brown fat is abundant at birth but is rapidly replaced by white adipose tissue (WAT) and is relatively scarce in the adult as an identifiable tissue. Brown fat cells are interspersed within WAT of rodents and humans. Activation of BAT requires 3-adrenergic receptor agonism. ...
... In humans, brown fat is abundant at birth but is rapidly replaced by white adipose tissue (WAT) and is relatively scarce in the adult as an identifiable tissue. Brown fat cells are interspersed within WAT of rodents and humans. Activation of BAT requires 3-adrenergic receptor agonism. ...
to a prolonged period of sucrose deprivation
... the cell dry weight and total fatty acids (Fig. 5). The increase in the cell dry weight was attributable to a rapid accumulation of sucrose in the vacuolar reservoir and starch in plastids (not shown), whereas the increase in total cell fatty acids was attributable to the synthesis of new cytoplasmi ...
... the cell dry weight and total fatty acids (Fig. 5). The increase in the cell dry weight was attributable to a rapid accumulation of sucrose in the vacuolar reservoir and starch in plastids (not shown), whereas the increase in total cell fatty acids was attributable to the synthesis of new cytoplasmi ...
Limits to Cell Size
... Limits to Cell Size Background Cells are the basic units of life. When cells become damaged, or simply grow too old, and need to be replaced, they undergo division: mitosis and cytokinesis. Also, when an organism grows in size, it’s due to the replication and reproduction of cells. Large organisms a ...
... Limits to Cell Size Background Cells are the basic units of life. When cells become damaged, or simply grow too old, and need to be replaced, they undergo division: mitosis and cytokinesis. Also, when an organism grows in size, it’s due to the replication and reproduction of cells. Large organisms a ...
The in vitro development of blastocyst
... which ES cells can be used in blastocyst injection experiments to form chimaeras of a broad tissue spectrum as well as germ-line chimaeras (Bradley, Evans, Kaufman & Robertson, 1984). Other advantages of ES cells lie in the fact that they can be made from mouse strains which carry recessive lethal m ...
... which ES cells can be used in blastocyst injection experiments to form chimaeras of a broad tissue spectrum as well as germ-line chimaeras (Bradley, Evans, Kaufman & Robertson, 1984). Other advantages of ES cells lie in the fact that they can be made from mouse strains which carry recessive lethal m ...
Biology
... Use of microscope to observe movement of water in plants and to compare sizes of various types of cells Examination under the microscope an animal cell (e.g. from frog’s blood) and a plant cell (e.g. from onion epidermis), using an appropriate temporary staining technique, such as iodine or methylen ...
... Use of microscope to observe movement of water in plants and to compare sizes of various types of cells Examination under the microscope an animal cell (e.g. from frog’s blood) and a plant cell (e.g. from onion epidermis), using an appropriate temporary staining technique, such as iodine or methylen ...
Par-complex proteins promote proliferative
... prompted us to examine a potential role for this complex in VZ progenitors by reducing Par3 protein. We targeted three different regions of Par3 with short hairpin sequences (see Materials and methods), one of which had previously been shown to mediate successful knockdown of the protein (Plusa et a ...
... prompted us to examine a potential role for this complex in VZ progenitors by reducing Par3 protein. We targeted three different regions of Par3 with short hairpin sequences (see Materials and methods), one of which had previously been shown to mediate successful knockdown of the protein (Plusa et a ...
The Cell Membrane
... Use this site to watch the animation and take a short quiz. How the Sodium-Potassium Pump Works Be sure to read about the Na+ - K+ pump in your book. It outlines the steps very clearly. 4. Explain (in detail) how the sodium potassium pumps works. 5. Name the organs (or tissues) in the human body tha ...
... Use this site to watch the animation and take a short quiz. How the Sodium-Potassium Pump Works Be sure to read about the Na+ - K+ pump in your book. It outlines the steps very clearly. 4. Explain (in detail) how the sodium potassium pumps works. 5. Name the organs (or tissues) in the human body tha ...
The Involvement of the Fibronectin Type II-like Modules
... rim of b-blades III and IV of the hemopexin-like COOH-terminal domain (C domain)2. However, alternative interactions of the gelatinase A C domain with TIMP-4 (14) and cell surface components such as the avb3 integrin receptor (15), fibronectin (16), and heparin (16 –18) have also been identified. Th ...
... rim of b-blades III and IV of the hemopexin-like COOH-terminal domain (C domain)2. However, alternative interactions of the gelatinase A C domain with TIMP-4 (14) and cell surface components such as the avb3 integrin receptor (15), fibronectin (16), and heparin (16 –18) have also been identified. Th ...
Questions on the integrity of the neuromuscular junction
... locomotion and cellular integrity. Thus it appears that apoptosis is not a major factor in the senescent decline of C. elegans. Consistent with this conclusion, mutants defective in apoptosis do not exhibit lifespan changes (Hengartner, Exp. Geront., v.32, pp.363-374, 1997), and apoptotic gene expr ...
... locomotion and cellular integrity. Thus it appears that apoptosis is not a major factor in the senescent decline of C. elegans. Consistent with this conclusion, mutants defective in apoptosis do not exhibit lifespan changes (Hengartner, Exp. Geront., v.32, pp.363-374, 1997), and apoptotic gene expr ...
PDF
... the position indicated by the filled arrowhead at the left margin of Figure 2A, these vessels are lined up in the direction of view. As a result, the xylem appears as one narrow band. At the positions highlighted by open arrowheads, several xylem vessels can be seen lying in parallel with each other ...
... the position indicated by the filled arrowhead at the left margin of Figure 2A, these vessels are lined up in the direction of view. As a result, the xylem appears as one narrow band. At the positions highlighted by open arrowheads, several xylem vessels can be seen lying in parallel with each other ...
Cumulative cell division time asymmetry in Staphyloccus aureus
... a shift in the relative positions along the cell envelop as shown in Fig 2c. A change in size implies that the envelop gets stretched or pulled during and after division which makes it difficult that some envelop positions have a constant spatial relationship with the orthogonal planes of division. Th ...
... a shift in the relative positions along the cell envelop as shown in Fig 2c. A change in size implies that the envelop gets stretched or pulled during and after division which makes it difficult that some envelop positions have a constant spatial relationship with the orthogonal planes of division. Th ...
Energy Converion: Mitochondria and Chloroplasts
... Figure 14 -8 The structure of a mitochondrion. Molecular Biology of the Cell, 5th Ed. ...
... Figure 14 -8 The structure of a mitochondrion. Molecular Biology of the Cell, 5th Ed. ...
Cell shape determination in Escherichia coli
... machinery respond to change the diameter of the rod cylinder? It has been proposed [37] that a change in growth rate may be sensed as a change in cytoplasmic turgor pressure, hence a change in the stress placed on the cell envelope. The stress theory of morphogenesis is discussed in detail by Harol ...
... machinery respond to change the diameter of the rod cylinder? It has been proposed [37] that a change in growth rate may be sensed as a change in cytoplasmic turgor pressure, hence a change in the stress placed on the cell envelope. The stress theory of morphogenesis is discussed in detail by Harol ...
Show and tell: cell biology of pathogen invasion
... protein interactions in vivo. This FRET-related method relies on measurements of the reduction in the time that the donor fluorescent molecule remains in the excited state in the presence of an acceptor molecule as a measure of protein–protein interaction [5,6,23,24]. Other variations on FRET, suc ...
... protein interactions in vivo. This FRET-related method relies on measurements of the reduction in the time that the donor fluorescent molecule remains in the excited state in the presence of an acceptor molecule as a measure of protein–protein interaction [5,6,23,24]. Other variations on FRET, suc ...
Extracellular matrix
In biology, the extracellular matrix (ECM) is a collection of extracellular molecules secreted by cells that provides structural and biochemical support to the surrounding cells. Because multicellularity evolved independently in different multicellular lineages, the composition of ECM varies between multicellular structures; however, cell adhesion, cell-to-cell communication and differentiation are common functions of the ECM.The animal extracellular matrix includes the interstitial matrix and the basement membrane. Interstitial matrix is present between various animal cells (i.e., in the intercellular spaces). Gels of polysaccharides and fibrous proteins fill the interstitial space and act as a compression buffer against the stress placed on the ECM. Basement membranes are sheet-like depositions of ECM on which various epithelial cells rest.The plant ECM includes cell wall components, like cellulose, in addition to more complex signaling molecules. Some single-celled organisms adopt multicelluar biofilms in which the cells are embedded in an ECM composed primarily of extracellular polymeric substances (EPS).