growth of the plant cell wall - Personal.psu.edu
... and crosslinking reactions. Unlike cellulose microfibrils, newly secreted matrix polysaccharides can diffuse some distance into the cell wall9, aided by cell TURGOR PRESSURE, which stretches the cell wall, increases its porosity and provides an energy gradient to drive polymers into the wall10. Cell ...
... and crosslinking reactions. Unlike cellulose microfibrils, newly secreted matrix polysaccharides can diffuse some distance into the cell wall9, aided by cell TURGOR PRESSURE, which stretches the cell wall, increases its porosity and provides an energy gradient to drive polymers into the wall10. Cell ...
Corresponding author: Dr. A. Lacey Samuels
... analysis, suggest phenylpropanoid metabolism in the rays may be more complex. For this reason, subsequent experiments to determine the subcellular distribution of monolignols in lignifying cells were done on tracheids themselves. To determine the subcellular location of the monolignols, the radioact ...
... analysis, suggest phenylpropanoid metabolism in the rays may be more complex. For this reason, subsequent experiments to determine the subcellular distribution of monolignols in lignifying cells were done on tracheids themselves. To determine the subcellular location of the monolignols, the radioact ...
What you need to know about stem cell therapies
... cells in order to replace tissue that was damaged from injury or disease. However as simple as this may sound, there are major obstacles to the successful use of these kinds of interventions, including the fact that the patient’s body may reject transplanted cells. As with organ transplantation, thi ...
... cells in order to replace tissue that was damaged from injury or disease. However as simple as this may sound, there are major obstacles to the successful use of these kinds of interventions, including the fact that the patient’s body may reject transplanted cells. As with organ transplantation, thi ...
Chromatin and the genome integrity network
... early steps of the homologous recombination process10. By contrast, another study reported that loss of RSC Initiating DSB repair in chromatin. Early studies of the actually leads to higher levels of NHEJ, to no defect in role of chromatin in DNA repair led to the ‘access, repair early steps of homo ...
... early steps of the homologous recombination process10. By contrast, another study reported that loss of RSC Initiating DSB repair in chromatin. Early studies of the actually leads to higher levels of NHEJ, to no defect in role of chromatin in DNA repair led to the ‘access, repair early steps of homo ...
Dominant-lethal alpha-tubulin mutants defective in microtubule depolymerization in yeast.
... showed that microtubule dynamics had ceased. Microtubules containing the mutant proteins did not depolymerize, even in the presence of nocodazole. These data support the view that ␣-tubulin is a GTPase-activating protein that acts, during microtubule polymerization, to stimulate GTP hydrolysis in - ...
... showed that microtubule dynamics had ceased. Microtubules containing the mutant proteins did not depolymerize, even in the presence of nocodazole. These data support the view that ␣-tubulin is a GTPase-activating protein that acts, during microtubule polymerization, to stimulate GTP hydrolysis in - ...
The argos Gene Encodes a Diffusible Factor
... 1987). In afgos w7’ discs it appears that many of the mystery cells inappropriately start differentiating as neurons and never leave the developing ommatidia. Occasionally, extra neural cells are detected between ommatidia, rather than associated with a specific cluster. It is not known whether thes ...
... 1987). In afgos w7’ discs it appears that many of the mystery cells inappropriately start differentiating as neurons and never leave the developing ommatidia. Occasionally, extra neural cells are detected between ommatidia, rather than associated with a specific cluster. It is not known whether thes ...
Shield formation at the onset of zebrafish gastrulation - MPI
... transition. Experiments in which single mesendodermal progenitors were transplanted into places of the gastrula where no other mesendodermal progenitors can be found have shown that these cells ingress in a cell-autonomous manner, suggesting that single-cell ingression is the primary mode for mesend ...
... transition. Experiments in which single mesendodermal progenitors were transplanted into places of the gastrula where no other mesendodermal progenitors can be found have shown that these cells ingress in a cell-autonomous manner, suggesting that single-cell ingression is the primary mode for mesend ...
PP Chapter 15 Clicker
... C. A portion of the cell membrane folding inward and pinching off. D. Diffusion of material through the cell wall. Explanation: When a message molecule reaches the specific receptor protein it can bind to, it sets off a series of chemical reactions that ultimately lead to the cell responding to the ...
... C. A portion of the cell membrane folding inward and pinching off. D. Diffusion of material through the cell wall. Explanation: When a message molecule reaches the specific receptor protein it can bind to, it sets off a series of chemical reactions that ultimately lead to the cell responding to the ...
Shield formation at the onset of zebrafish gastrulation
... ectodermal progenitors have been interpreted as evidence for mesendodermal progenitors undergoing single-cell ingression rather than involution (Shih and Fraser, 1995). By contrast, studies in which the movements of cells within the forming shield were analyzed have demonstrated that mesendodermal p ...
... ectodermal progenitors have been interpreted as evidence for mesendodermal progenitors undergoing single-cell ingression rather than involution (Shih and Fraser, 1995). By contrast, studies in which the movements of cells within the forming shield were analyzed have demonstrated that mesendodermal p ...
Chapter 3.05
... Several model organisms deficient in the expression of glycosyltransferases responsible for the biosynthesis of the linkage region tetrasaccharide have been reported (Table 2). Caenorhabditis elegans (C. elegans) is one of the tractable model organisms and synthesizes both HS and Chn.139,140 Genetic ...
... Several model organisms deficient in the expression of glycosyltransferases responsible for the biosynthesis of the linkage region tetrasaccharide have been reported (Table 2). Caenorhabditis elegans (C. elegans) is one of the tractable model organisms and synthesizes both HS and Chn.139,140 Genetic ...
Cell Wall Amine Oxidases: New Players in Root Xylem
... (Spm). Additionally, thermospermine (T-Spm), an isomer of Spm, which has not as yet been detected in mammalian cells, has been found to be widely distributed throughout the plant kingdom [14,15]. Put and Spd are essential for life, as Arabidopsis mutants defective in their biosynthetic pathways are ...
... (Spm). Additionally, thermospermine (T-Spm), an isomer of Spm, which has not as yet been detected in mammalian cells, has been found to be widely distributed throughout the plant kingdom [14,15]. Put and Spd are essential for life, as Arabidopsis mutants defective in their biosynthetic pathways are ...
Review The Role of Laminin in Embryonic Cell Polarization and
... from compaction does not need a basement membrane (Smyth et al., 1999). Furthermore, it is not until the blastocyst stage that two continuous basement membranes form, one deposited between the newly differentiated primitive endoderm cells and the remaining interior ICM cells and the other accumulati ...
... from compaction does not need a basement membrane (Smyth et al., 1999). Furthermore, it is not until the blastocyst stage that two continuous basement membranes form, one deposited between the newly differentiated primitive endoderm cells and the remaining interior ICM cells and the other accumulati ...
plant cell biology in the new millennium: new tools and new
... explosion in the availability of optical probes that can be used with these techniques. Chemists are continuously developing new fluorescent labels to allow imaging of proteins, nucleic acids, lipids, and just about any specific cell component. In addition, targeted probes for organelles and even sp ...
... explosion in the availability of optical probes that can be used with these techniques. Chemists are continuously developing new fluorescent labels to allow imaging of proteins, nucleic acids, lipids, and just about any specific cell component. In addition, targeted probes for organelles and even sp ...
Division, and Morphogenesis in Plants
... Ben Scheres and Renze Heidstra Department of Molecular Cell Biology ...
... Ben Scheres and Renze Heidstra Department of Molecular Cell Biology ...
New type of snRNP containing nuclear bodies in plant cells
... CBs proteins involved in histone gene transcript maturation (Wu and Gall, 1993; Abbott et al., 1999) and cell cycle regulation factors (cyclin E/cdk2) (Liu et al., 2000) have also been detected. CBs contain protein p80 coilin which is considered to be a marker of these structures (Andrade et al., 19 ...
... CBs proteins involved in histone gene transcript maturation (Wu and Gall, 1993; Abbott et al., 1999) and cell cycle regulation factors (cyclin E/cdk2) (Liu et al., 2000) have also been detected. CBs contain protein p80 coilin which is considered to be a marker of these structures (Andrade et al., 19 ...
Plankton Biol. Ecol. 52(2), Page 67, 2005
... were found during this incubation period (Fig. 2A). In the phosphorus-deficient medium, there was little change of ...
... were found during this incubation period (Fig. 2A). In the phosphorus-deficient medium, there was little change of ...
Caenorhabditis elegans lin-3
... n4441 is lin-3, which encodes the EGF ligand. Strong loss-offunction alleles of lin-3 cause a rod-like lethal phenotype, and lin-3 mutations can also cause sterility [36,37]. The n4929 mutant carries a G-to-A transition in the first nucleotide of exon 8 of lin-3 and is predicted to mutate an arginin ...
... n4441 is lin-3, which encodes the EGF ligand. Strong loss-offunction alleles of lin-3 cause a rod-like lethal phenotype, and lin-3 mutations can also cause sterility [36,37]. The n4929 mutant carries a G-to-A transition in the first nucleotide of exon 8 of lin-3 and is predicted to mutate an arginin ...
Strategies and New Developments in the Generation of Patient-Specific Pluripotent Stem Cells Yamanaka, REVIEW (2007) Cell Stem Cell 1. July 2007 pp 39- 49.
... embryos with germline transmission. Currently, this method has only been demonstrated with mouse zygotes. However, it does raise the possibility that discarded human IVF embryos could potentially be used as recipients for human ntES cell derivation instead of oocytes and even, hypothetically, that m ...
... embryos with germline transmission. Currently, this method has only been demonstrated with mouse zygotes. However, it does raise the possibility that discarded human IVF embryos could potentially be used as recipients for human ntES cell derivation instead of oocytes and even, hypothetically, that m ...
- UCL Discovery
... To determine the effect of overexpressing OA1 on the endocytic pathway, HeLa cells were transiently transfected with Myctagged OA1 wild-type (wt) and OA1 mutants, and the number of MVBs and lysosomes per mm2 of cytoplasm was analysed by electron microscopy. MVBs and lysosomes were distinguished on t ...
... To determine the effect of overexpressing OA1 on the endocytic pathway, HeLa cells were transiently transfected with Myctagged OA1 wild-type (wt) and OA1 mutants, and the number of MVBs and lysosomes per mm2 of cytoplasm was analysed by electron microscopy. MVBs and lysosomes were distinguished on t ...
Chloride Channels Regulate HIT Cell Volume but Cannot
... appropriate RNA), followed by PCR with the 3⬘ primer. As a positive control, interleukin-1␣ mRNA was amplified using primers supplied in the kit to produce a 308-bp cDNA product. The PCR products were then gel-purified and cloned into the pGEM T-Easy Cloning vector (Promega, Madison, WI). The result ...
... appropriate RNA), followed by PCR with the 3⬘ primer. As a positive control, interleukin-1␣ mRNA was amplified using primers supplied in the kit to produce a 308-bp cDNA product. The PCR products were then gel-purified and cloned into the pGEM T-Easy Cloning vector (Promega, Madison, WI). The result ...
Cell cycle
The cell cycle or cell-division cycle is the series of events that take place in a cell leading to its division and duplication (replication) that produces two daughter cells. In prokaryotes which lack a cell nucleus, the cell cycle occurs via a process termed binary fission. In cells with a nucleus, as in eukaryotes, the cell cycle can be divided into three periods: interphase, the mitotic (M) phase, and cytokinesis. During interphase, the cell grows, accumulating nutrients needed for mitosis, preparing it for cell division and duplicating its DNA. During the mitotic phase, the cell splits itself into two distinct daughter cells. During the final stage, cytokinesis, the new cell is completely divided. To ensure the proper division of the cell, there are control mechanisms known as cell cycle checkpoints.The cell-division cycle is a vital process by which a single-celled fertilized egg develops into a mature organism, as well as the process by which hair, skin, blood cells, and some internal organs are renewed. After cell division, each of the daughter cells begin the interphase of a new cycle. Although the various stages of interphase are not usually morphologically distinguishable, each phase of the cell cycle has a distinct set of specialized biochemical processes that prepare the cell for initiation of cell division.