Hormonal control of cell division and elongation
... more proximal cortical and epidermis cells. The newly formed lateral auxin response maximum leads to ectopic QC and columella specification, indicating that auxin plays a crucial role in stem cell specification in roots (Fig. 1; Sabatini et al., 1999). RETINOBLASTOMA-RELATED protein (RBR) is the pla ...
... more proximal cortical and epidermis cells. The newly formed lateral auxin response maximum leads to ectopic QC and columella specification, indicating that auxin plays a crucial role in stem cell specification in roots (Fig. 1; Sabatini et al., 1999). RETINOBLASTOMA-RELATED protein (RBR) is the pla ...
Mammalian Cdc7–Dbf4 protein kinase complex is essential for
... necessary, the assembly of pre-RCs during G1 is not sufficient to initiate DNA replication. During the G1–S transition, cells must enter the second state in which DNA replication can be initiated. This process requires the activation of two S-phase-promoting kinases: cyclindependent kinases, Cdks, a ...
... necessary, the assembly of pre-RCs during G1 is not sufficient to initiate DNA replication. During the G1–S transition, cells must enter the second state in which DNA replication can be initiated. This process requires the activation of two S-phase-promoting kinases: cyclindependent kinases, Cdks, a ...
A Vacuolar Processing Enzyme, dVPE, Is Involved in Seed Coat
... Figures 6A to 6D show the cytological changes in the inner integuments of developing wild-type seeds at the torpedoshaped-embryo stages. At first, cells in the ii2 layer started shrinkage and plasmolysis (Figure 6A). The plasma membrane and tonoplast are partially disrupted (indicated by an asterisk ...
... Figures 6A to 6D show the cytological changes in the inner integuments of developing wild-type seeds at the torpedoshaped-embryo stages. At first, cells in the ii2 layer started shrinkage and plasmolysis (Figure 6A). The plasma membrane and tonoplast are partially disrupted (indicated by an asterisk ...
Introduction to Physiology: The Human Body Organization of the Body
... • Allows for the removal of waste substances • Urea and uric acid • Excess ions and water • Filtration occurs in the kidney by first absorbing large quantities of plasma, and then returning to the blood those substances that are of nutritional value (glucose, amino acids, water, and ions), while ...
... • Allows for the removal of waste substances • Urea and uric acid • Excess ions and water • Filtration occurs in the kidney by first absorbing large quantities of plasma, and then returning to the blood those substances that are of nutritional value (glucose, amino acids, water, and ions), while ...
chapter2 467..477 - Caister Academic Press
... strategy of obtaining energy and biosynthetic materials from their surroundings: acquiring them from other living bacterial cells. These types of microbes have been found in a diverse variety of environments, and may play an important role in modulating microbial population structure and dynamics, a ...
... strategy of obtaining energy and biosynthetic materials from their surroundings: acquiring them from other living bacterial cells. These types of microbes have been found in a diverse variety of environments, and may play an important role in modulating microbial population structure and dynamics, a ...
Antibiotics for research
... scientists identifying and isolating active moieties responsible for antibacterial activity. Today antibiotics are widely used in the Life Sciences not only to eliminate contamination, but also to identify bacterial mechanisms of resistance, protein modification and DNA/RNA manipulation to develop n ...
... scientists identifying and isolating active moieties responsible for antibacterial activity. Today antibiotics are widely used in the Life Sciences not only to eliminate contamination, but also to identify bacterial mechanisms of resistance, protein modification and DNA/RNA manipulation to develop n ...
Intercellular adhesion and cell separation in plants
... When two leaves or stems of the same plant come into chance contact they do not fuse, but remain distinct. Likewise pollen tubes that germinate on an epidermal surface other than the stigma do not interact with it. However during flower formation in many species, fusion of floral organs such as carp ...
... When two leaves or stems of the same plant come into chance contact they do not fuse, but remain distinct. Likewise pollen tubes that germinate on an epidermal surface other than the stigma do not interact with it. However during flower formation in many species, fusion of floral organs such as carp ...
CELL DIVISION AND DNA SYNTHESIS IN TETRAHYMENA
... at which D N A synthesis begins is also demonstrated by the change in the utilization of H 3thymidine of the medium for macronuclear D N A synthesis. Amino acid deprivation before D N A synthesis begins prevents the subsequent uptake of H3-thymidine into macronuclear D N A although macronuclear D N ...
... at which D N A synthesis begins is also demonstrated by the change in the utilization of H 3thymidine of the medium for macronuclear D N A synthesis. Amino acid deprivation before D N A synthesis begins prevents the subsequent uptake of H3-thymidine into macronuclear D N A although macronuclear D N ...
pdf
... intermediate water film of lower refractive index (when compared to the refractive index of the cell) and unknown thickness, and because of the uncertainty of the behavior of the wave at the water-cell wall interface. In addition, the uncertainty of refractive indices of the bacterial cell walls in ...
... intermediate water film of lower refractive index (when compared to the refractive index of the cell) and unknown thickness, and because of the uncertainty of the behavior of the wave at the water-cell wall interface. In addition, the uncertainty of refractive indices of the bacterial cell walls in ...
Identification of seven new cut genes involved in
... shown in Table 1, twelve of the twenty-one mutants examined fell into the previously identified five loci: cut1 was allelic to five strains (380, 474, 514, 686, and 693); top2 to three (4, 137, and 640); cut7 to two (138 and 611); and two strains to cut5 (401) and cut9 (98), respectively. The other ...
... shown in Table 1, twelve of the twenty-one mutants examined fell into the previously identified five loci: cut1 was allelic to five strains (380, 474, 514, 686, and 693); top2 to three (4, 137, and 640); cut7 to two (138 and 611); and two strains to cut5 (401) and cut9 (98), respectively. The other ...
The functions of the cytoskeleton and associated
... thaliana (Azimzadeh et al., 2008). TON1 Recruiting Motif proteins (TRMs) have been recently shown to interact with TON1 in Arabidopsis. One of TRMs (TRM1) is found to bind and recruit TON1 to the cortical MTs (Drevensek et al., 2012). Recently, it has been reported that the activity of a regulatory ...
... thaliana (Azimzadeh et al., 2008). TON1 Recruiting Motif proteins (TRMs) have been recently shown to interact with TON1 in Arabidopsis. One of TRMs (TRM1) is found to bind and recruit TON1 to the cortical MTs (Drevensek et al., 2012). Recently, it has been reported that the activity of a regulatory ...
315-332
... A secondary cell wall, if present, is laid down internally to the primary cell wall at the onset of differentiation, once cell growth has ceased. Secondary cell wall composition and ultrastructure in spermatophytes varies from one cell type to another as well as between plant species. This variabili ...
... A secondary cell wall, if present, is laid down internally to the primary cell wall at the onset of differentiation, once cell growth has ceased. Secondary cell wall composition and ultrastructure in spermatophytes varies from one cell type to another as well as between plant species. This variabili ...
Text S1.
... frame. In an analogous manner we computed the information provided by the room frame in addition to the arena frame. For some cells, most of the information was provided by one dominant frame and the other frame provided little extra information. But we also observed several cells in which the arena ...
... frame. In an analogous manner we computed the information provided by the room frame in addition to the arena frame. For some cells, most of the information was provided by one dominant frame and the other frame provided little extra information. But we also observed several cells in which the arena ...
Mineral formation by bacteria in natural microbial communities
... mineral elements. Since bacteria are most frequently found as part of microbial communities it is within this context that their mineral-forming ability will be discussed. z 1998 Published by Elsevier Science B.V. All rights reserved. Keywords : Bacteria; Microbial ecology; Mineral formation ...
... mineral elements. Since bacteria are most frequently found as part of microbial communities it is within this context that their mineral-forming ability will be discussed. z 1998 Published by Elsevier Science B.V. All rights reserved. Keywords : Bacteria; Microbial ecology; Mineral formation ...
CN Theveneau
... region from r6 to r8. Crests from r3 and r5 migrate rostrally and caudally to join adjacent streams leaving two NC-free zones opposite to r3 and r5 (Kulesa et al., 2010; Kuriyama and Mayor, 2008; Lumsden and Guthrie, 1991; Lumsden et al., 1991; Sechrist et al., 1993). Several signaling pathways cont ...
... region from r6 to r8. Crests from r3 and r5 migrate rostrally and caudally to join adjacent streams leaving two NC-free zones opposite to r3 and r5 (Kulesa et al., 2010; Kuriyama and Mayor, 2008; Lumsden and Guthrie, 1991; Lumsden et al., 1991; Sechrist et al., 1993). Several signaling pathways cont ...
analysis of the significance of a periodic, cell size
... implies that the wild type cells are always 2' larger than the mutant of corresponding age, it follows directly that the average cell size in a wild type population will always be 2' larger than in small mutant populations. From equation (10) the average amount of poly(A)+mRNA in wild type cells is ...
... implies that the wild type cells are always 2' larger than the mutant of corresponding age, it follows directly that the average cell size in a wild type population will always be 2' larger than in small mutant populations. From equation (10) the average amount of poly(A)+mRNA in wild type cells is ...
Light Chain λ and Ig κ Immature B Cell Stage in Mice Without Ig
... inefficient. However, despite the lack of L chain, these mice are healthy and can mount an efficient immune response (11). During B cell development gene segments encoding Ig H chains rearrange first by D (diversity) to JH recombination at the pro-B cell stage. This is followed by VH to D-JH recom ...
... inefficient. However, despite the lack of L chain, these mice are healthy and can mount an efficient immune response (11). During B cell development gene segments encoding Ig H chains rearrange first by D (diversity) to JH recombination at the pro-B cell stage. This is followed by VH to D-JH recom ...
When Cells Become Organelle Donors
... the alveolar epithelium that are necessary to facilitate mitochondrial transfer. The failure to transfer mitochondria to healthy alveolar epithelium is probably caused by a general lack of interaction between mesenchymal stem cells and alveolar epithelium in the absence of damage signals, but it is ...
... the alveolar epithelium that are necessary to facilitate mitochondrial transfer. The failure to transfer mitochondria to healthy alveolar epithelium is probably caused by a general lack of interaction between mesenchymal stem cells and alveolar epithelium in the absence of damage signals, but it is ...
Tumor Stem Cells and Malignant Cells, One and the Same
... indicates that the population of cells grew continuously in culture (to this day); therefore, the cells were “immortal” or capable of continuous self-renewal. Some the leukemia-lymphoma cell lines were presumed to be monoclonal that is derived from one malignant cell and that the current multiclonal ...
... indicates that the population of cells grew continuously in culture (to this day); therefore, the cells were “immortal” or capable of continuous self-renewal. Some the leukemia-lymphoma cell lines were presumed to be monoclonal that is derived from one malignant cell and that the current multiclonal ...
regulation of cell growth by vitreous humour
... Chesapeake Biological Laboratories, Inc., Hunt Valley, Maryland 21031, U.SA. ...
... Chesapeake Biological Laboratories, Inc., Hunt Valley, Maryland 21031, U.SA. ...
- eScholarship@UMMS
... found that the tetraploid cells arrested in G1, whereas many of the mononucleate cells in the same preparations continued cycling. By temporally separating the G1 arrest from the action of the drug, these workers provided evidence that the arrest was specific to the binucleate condition. Further ind ...
... found that the tetraploid cells arrested in G1, whereas many of the mononucleate cells in the same preparations continued cycling. By temporally separating the G1 arrest from the action of the drug, these workers provided evidence that the arrest was specific to the binucleate condition. Further ind ...
physiological and chemical architecture of a lobster ganglion with
... difference appears to lie in an asymmetric distribution of the enzyme that synthesizes GABA from glutamate, glutamic decarboxylase, the pathway for subsequent degradation being about equally active in the two types of axons (14). The mechanisms regulating the levels of the enzymes, on the other hand ...
... difference appears to lie in an asymmetric distribution of the enzyme that synthesizes GABA from glutamate, glutamic decarboxylase, the pathway for subsequent degradation being about equally active in the two types of axons (14). The mechanisms regulating the levels of the enzymes, on the other hand ...
THINK ABOUT IT
... The Nucleus Chromosomes contain the genetic information that is passed from one generation of cells to the next. Most of the time, the threadlike chromosomes are spread throughout the nucleus in the form of chromatin—a complex of DNA bound to proteins. When a cell divides, its chromosomes condense a ...
... The Nucleus Chromosomes contain the genetic information that is passed from one generation of cells to the next. Most of the time, the threadlike chromosomes are spread throughout the nucleus in the form of chromatin—a complex of DNA bound to proteins. When a cell divides, its chromosomes condense a ...
Nondestructive Manipulation of Single Live Plant Cell by Laser
... material, various nonlinear photophysical and photochemical dynamic processes, such as, shockwave, cavitation bubble, plasma, and so on, are induced as a result of high efficient multiphoton absorption, mutual interactions between excited states, and/or ionization (8-12). Especially, the force of th ...
... material, various nonlinear photophysical and photochemical dynamic processes, such as, shockwave, cavitation bubble, plasma, and so on, are induced as a result of high efficient multiphoton absorption, mutual interactions between excited states, and/or ionization (8-12). Especially, the force of th ...