Formation of Earlywood, Latewood, and Heartwood Regulation of
... concentration of ABA did not change seasonally and that it did not change when earlywood was transformed into latewood or the termination of cambial activity. ...
... concentration of ABA did not change seasonally and that it did not change when earlywood was transformed into latewood or the termination of cambial activity. ...
University of Groningen Bromodeoxyuridine does not contribute to
... rates, we first established baseline SCE rates in both normal and BS cells. We used primary fibroblasts and EBVtransformed lymphoblasts from healthy donors and BS patients for our analysis. Logarithmically growing cells were pulsed with 40 M for one cell division (18 h for fibroblasts, 24 h for lym ...
... rates, we first established baseline SCE rates in both normal and BS cells. We used primary fibroblasts and EBVtransformed lymphoblasts from healthy donors and BS patients for our analysis. Logarithmically growing cells were pulsed with 40 M for one cell division (18 h for fibroblasts, 24 h for lym ...
1749-8104-8-5 - Cambridge Repository
... place. During neural tube formation in the zebrafish embryo, the generation of the apical specializations of the lumen must occur in the center of the neural rod after the neural cells have undergone convergence, invagination and interdigitation across the midline. How this coordination is achieved ...
... place. During neural tube formation in the zebrafish embryo, the generation of the apical specializations of the lumen must occur in the center of the neural rod after the neural cells have undergone convergence, invagination and interdigitation across the midline. How this coordination is achieved ...
Craniates in Time and Taxa
... Hollow sphere is called the ________ and it contains a hollow space… the _____________. Excessive yolk impedes cell division… such that a ______________ develops on an otherwise undivided yolk. What taxonomic group(s) would utilize this mode? ...
... Hollow sphere is called the ________ and it contains a hollow space… the _____________. Excessive yolk impedes cell division… such that a ______________ develops on an otherwise undivided yolk. What taxonomic group(s) would utilize this mode? ...
Morphogenesis
... Hollow sphere is called the ________ and it contains a hollow space… the _____________. Excessive yolk impedes cell division… such that a ______________ develops on an otherwise undivided yolk. What taxonomic group(s) would utilize this mode? ...
... Hollow sphere is called the ________ and it contains a hollow space… the _____________. Excessive yolk impedes cell division… such that a ______________ develops on an otherwise undivided yolk. What taxonomic group(s) would utilize this mode? ...
functional differentiation of enterocytes in the follicle
... Tritiated valine at a concentration of 1 mM was presented to the luminal surface of rat mid-jejunum for a period of 45 s, as described in the previous section. A typical autoradiograph of sectioned tissue taken in the region of a Peyer's patch is shown in Fig. 1 A. Radioactivity is seen to be concen ...
... Tritiated valine at a concentration of 1 mM was presented to the luminal surface of rat mid-jejunum for a period of 45 s, as described in the previous section. A typical autoradiograph of sectioned tissue taken in the region of a Peyer's patch is shown in Fig. 1 A. Radioactivity is seen to be concen ...
chlamydomonas gymnogama and - The Journal of Cell Biology
... cytoplasmic interior takes place. Thus, as gametes and decomposition of old wall raises interesting develop toward sexual maturity, they produce questions about the extracellular control of wall large numbers of osmiophilic globules which ap- organization. Evidence for continual cell wall pear to ex ...
... cytoplasmic interior takes place. Thus, as gametes and decomposition of old wall raises interesting develop toward sexual maturity, they produce questions about the extracellular control of wall large numbers of osmiophilic globules which ap- organization. Evidence for continual cell wall pear to ex ...
Fission yeast meu14+ is required for proper nuclear division and
... Meiosis produces haploid gametes in eukaryotic organisms through two successive meiotic divisions. The fission yeast Schizosaccharomyces pombe is a useful model organism to study the mechanisms that regulate processes that occur during meiosis (e.g. recombination, chromosome behavior, and sporulatio ...
... Meiosis produces haploid gametes in eukaryotic organisms through two successive meiotic divisions. The fission yeast Schizosaccharomyces pombe is a useful model organism to study the mechanisms that regulate processes that occur during meiosis (e.g. recombination, chromosome behavior, and sporulatio ...
Vp-1 Neurospora crassa circadian clock in chemostat culture
... Neurospora crassa is a filamentous fungus and a model organism for the study of the molecular basis of circadian clocks. Rhythmic sporulation of this organism is maintained for prolonged periods in the dark with a periodicity of approximately 22 h. Three genes; frequency, white collar-1 and white co ...
... Neurospora crassa is a filamentous fungus and a model organism for the study of the molecular basis of circadian clocks. Rhythmic sporulation of this organism is maintained for prolonged periods in the dark with a periodicity of approximately 22 h. Three genes; frequency, white collar-1 and white co ...
Isolation of Chinese Hamster Ovary Cell Mutants Requiring the
... Most of the isolates (11/18) exhibit two- to threefold resistance to taxol but, unlike mutants selected for resistance to colchicine, colcemid, or griseofulvin (8), they show no crossresistance to other common microtubule-active drugs and are not temperature-sensitive for growth. This class of mutan ...
... Most of the isolates (11/18) exhibit two- to threefold resistance to taxol but, unlike mutants selected for resistance to colchicine, colcemid, or griseofulvin (8), they show no crossresistance to other common microtubule-active drugs and are not temperature-sensitive for growth. This class of mutan ...
4-4 Connective Tissue
... • Understand the fundamental characteristics, classifications, structure/functions and locations of the 4 basic types of tissue and membranes: ...
... • Understand the fundamental characteristics, classifications, structure/functions and locations of the 4 basic types of tissue and membranes: ...
Suppression of Pyk2 Kinase and Cellular Activities by FIP200
... tyrosine kinases with unique structural features. These two kinases exhibit ⵑ45% amino acid identity and they both lack the Src homology 2 or 3 domains that are present in many other cytoplasmic tyrosine kinases. Both Pyk2 and FAK have large NH2- and COOH-terminal noncatalytic domains that flank a c ...
... tyrosine kinases with unique structural features. These two kinases exhibit ⵑ45% amino acid identity and they both lack the Src homology 2 or 3 domains that are present in many other cytoplasmic tyrosine kinases. Both Pyk2 and FAK have large NH2- and COOH-terminal noncatalytic domains that flank a c ...
MES-4: an autosome-associated histone
... single X animals are usually fertile (Garvin et al., 1998). Second, in germ cells of wild-type hermaphrodites the X chromosomes lack numerous marks of active chromatin (Kelly et al., 2002), whereas in germ cells of mes-2, mes-3 or mes-6 hermaphrodites the X chromosomes display those marks (Fong et a ...
... single X animals are usually fertile (Garvin et al., 1998). Second, in germ cells of wild-type hermaphrodites the X chromosomes lack numerous marks of active chromatin (Kelly et al., 2002), whereas in germ cells of mes-2, mes-3 or mes-6 hermaphrodites the X chromosomes display those marks (Fong et a ...
Jamming prokaryotic cell-to-cell communications in a model biofilm†
... parameters: n ¼ 2.4, bg9 molecules/s, gg ¼ ln(2)/900 s1, ag ¼ ln(2)/2600 s1, and n12000 s with Kg ¼ 4.7 nM. The strength of the green fluorescent response also depends on the idiosyncrasies of the cells in the array.18,19 The plasmid copy number, the spatial distribution, and the fluctuating rea ...
... parameters: n ¼ 2.4, bg9 molecules/s, gg ¼ ln(2)/900 s1, ag ¼ ln(2)/2600 s1, and n12000 s with Kg ¼ 4.7 nM. The strength of the green fluorescent response also depends on the idiosyncrasies of the cells in the array.18,19 The plasmid copy number, the spatial distribution, and the fluctuating rea ...
CHOI, JOON W., EVELYN B. SHERR, AND BARRY F. SHERR
... and Hagstrom (1995) included lowering the seawater salinity to < 127~0,incubation of bacteria with detergent to promote effective binding of DAPI to DNA, and a 2-propanol rinse to visualize nucleoids by removing most of the nonselectively bound DAPI. We modified this protocol somewhat. We found it n ...
... and Hagstrom (1995) included lowering the seawater salinity to < 127~0,incubation of bacteria with detergent to promote effective binding of DAPI to DNA, and a 2-propanol rinse to visualize nucleoids by removing most of the nonselectively bound DAPI. We modified this protocol somewhat. We found it n ...
Endocytosis of cigarette-smoke condensate by rabbit alveolar
... temperature effectively inhibits such mechanisms [22]. On the other hand, an increased fluorescence was observed in both phagocytic and non-phagocytic cells at 4oc compared to control samples. Therefore, in the present study, we cannot exclude that some of the fluorescence originates either from flu ...
... temperature effectively inhibits such mechanisms [22]. On the other hand, an increased fluorescence was observed in both phagocytic and non-phagocytic cells at 4oc compared to control samples. Therefore, in the present study, we cannot exclude that some of the fluorescence originates either from flu ...
PubMed Central CANADA
... generation, through down-regulating the mitochondrial death genes, Bcl2/adenovirus E1Binteracting proteins (BNIP)3, BNIP3-like (BNIP3L; also known as NIX) (21) and MLN64 (also known as the steroidogenic acute regulatory-related lipid transfer protein 3) (23). To date, how these death genes are down- ...
... generation, through down-regulating the mitochondrial death genes, Bcl2/adenovirus E1Binteracting proteins (BNIP)3, BNIP3-like (BNIP3L; also known as NIX) (21) and MLN64 (also known as the steroidogenic acute regulatory-related lipid transfer protein 3) (23). To date, how these death genes are down- ...
Brassinosteroid signal transduction – choices of signals and receptors
... All multicellular organisms have evolved mechanisms to perceive and respond to extracellular chemical signals, including endogenous hormones and external cues from the environment, pathogens and symbiotic organisms. Among these signaling molecules, steroids and small peptides are widely used in both ...
... All multicellular organisms have evolved mechanisms to perceive and respond to extracellular chemical signals, including endogenous hormones and external cues from the environment, pathogens and symbiotic organisms. Among these signaling molecules, steroids and small peptides are widely used in both ...
The src
... So, what is src ? Cells transformed by the v-src oncogene exhibit various cellular alterations v-src affects a wide variety of cellular targets The first BIG step: using serum to immunoprecipitate the v-Src protein ...
... So, what is src ? Cells transformed by the v-src oncogene exhibit various cellular alterations v-src affects a wide variety of cellular targets The first BIG step: using serum to immunoprecipitate the v-Src protein ...
fibulins: a versatile family of extracellular matrix proteins
... and their associations with different tissue compartments as an initial approach to understanding their biological role. Information regarding the tissue deposition of all of the fibulin isoforms has been obtained using northern blots, in situ hybridization and immunohistology. The resulting data ar ...
... and their associations with different tissue compartments as an initial approach to understanding their biological role. Information regarding the tissue deposition of all of the fibulin isoforms has been obtained using northern blots, in situ hybridization and immunohistology. The resulting data ar ...
Molecular sieving properties of the cytoplasm of Escherichia coli and
... there are few studies that address the mobility of macromolecules in bacterial cells (Elowitz et al., 1999; Konopka et al., 2006; 2009; Mullineaux et al., 2006; van den Bogaart et al., 2007; Slade et al., 2009a,b; Kumar et al., 2010). For GFP in the cytoplasm of E. coli, the diffusion coefficients a ...
... there are few studies that address the mobility of macromolecules in bacterial cells (Elowitz et al., 1999; Konopka et al., 2006; 2009; Mullineaux et al., 2006; van den Bogaart et al., 2007; Slade et al., 2009a,b; Kumar et al., 2010). For GFP in the cytoplasm of E. coli, the diffusion coefficients a ...
Identification of Diphtheria Toxin Receptor and a
... PHTHERIA toxin (DT) ~ is a cytotoxic protein which inhibits cellular protein synthesis (4, 40) in eukaryotes by catalyzing the ADP-ribosylation of EF-2, which results in its inactivation (9, 12). The first step of intoxication by DT is binding of the toxin to a susceptible cell. A specific receptor ...
... PHTHERIA toxin (DT) ~ is a cytotoxic protein which inhibits cellular protein synthesis (4, 40) in eukaryotes by catalyzing the ADP-ribosylation of EF-2, which results in its inactivation (9, 12). The first step of intoxication by DT is binding of the toxin to a susceptible cell. A specific receptor ...
chlamydomonas gymnogama and
... cytoplasmic interior takes place. Thus, as gametes and decomposition of old wall raises interesting develop toward sexual maturity, they produce questions about the extracellular control of wall large numbers of osmiophilic globules which ap- organization. Evidence for continual cell wall pear to ex ...
... cytoplasmic interior takes place. Thus, as gametes and decomposition of old wall raises interesting develop toward sexual maturity, they produce questions about the extracellular control of wall large numbers of osmiophilic globules which ap- organization. Evidence for continual cell wall pear to ex ...
Association between cell wall-related processes and
... the ORFs annotation computational predictions from genome sequences combined with experimental verification were usually applied. The use of current genomic, transcriptomic and proteomic approaches still provides not enough information for assignment of specific functions to all unknown genes (Li ...
... the ORFs annotation computational predictions from genome sequences combined with experimental verification were usually applied. The use of current genomic, transcriptomic and proteomic approaches still provides not enough information for assignment of specific functions to all unknown genes (Li ...
N-terminal and C-terminal plasma membrane
... (Received 12 May 1999, revised 1 June 1999, accepted 13 August 1999) ...
... (Received 12 May 1999, revised 1 June 1999, accepted 13 August 1999) ...
Cellular differentiation
In developmental biology, cellular differentiation isa cell changes from one cell type to another. Most commonly this is a less specialized type becoming a more specialized type, such as during cell growth. Differentiation occurs numerous times during the development of a multicellular organism as it changes from a simple zygote to a complex system of tissues and cell types. Differentiation continues in adulthood as adult stem cells divide and create fully differentiated daughter cells during tissue repair and during normal cell turnover. Some differentiation occurs in response to antigen exposure. Differentiation dramatically changes a cell's size, shape, membrane potential, metabolic activity, and responsiveness to signals. These changes are largely due to highly controlled modifications in gene expression and are the study of epigenetics. With a few exceptions, cellular differentiation almost never involves a change in the DNA sequence itself. Thus, different cells can have very different physical characteristics despite having the same genome.A cell that can differentiate into all cell types of the adult organism is known as pluripotent. Such cells are called embryonic stem cells in animals and meristematic cells in higher plants. A cell that can differentiate into all cell types, including the placental tissue, is known as totipotent. In mammals, only the zygote and subsequent blastomeres are totipotent, while in plants many differentiated cells can become totipotent with simple laboratory techniques. In cytopathology, the level of cellular differentiation is used as a measure of cancer progression. ""Grade"" is a marker of how differentiated a cell in a tumor is.