Principles of redox control in photosynthesis gene
... Redox control of photosynthesis genes – a common principle in photosynthesising cells Perceptional redox control by oxygen Perceptional redox control occurs if the environmental stimulus induces a redox signal within the perceiving sensory system. Among photosynthetic organisms, oxygen has been iden ...
... Redox control of photosynthesis genes – a common principle in photosynthesising cells Perceptional redox control by oxygen Perceptional redox control occurs if the environmental stimulus induces a redox signal within the perceiving sensory system. Among photosynthetic organisms, oxygen has been iden ...
Engineering microfluidic concentration gradient generators for
... A microfluidic gradient generator manipulates small volumes of reagents, usually in nanolitres or microlitres, through networks of sub-micron to micrometer sized channels. The advances in microfabrication technology led to the continuous miniaturization of channel geometries, thereby reducing gradie ...
... A microfluidic gradient generator manipulates small volumes of reagents, usually in nanolitres or microlitres, through networks of sub-micron to micrometer sized channels. The advances in microfabrication technology led to the continuous miniaturization of channel geometries, thereby reducing gradie ...
Dopamine transporter: involvement in selective dopaminergic
... and it is believed to control the intensity and duration of DAergic neurotransmission by setting the concentration of DA in the extracellular space. Depending on cellular conditions, DAT is able to transport DA bi-directionally, but at normal membrane potential and Naþ gradient the inward transport ...
... and it is believed to control the intensity and duration of DAergic neurotransmission by setting the concentration of DA in the extracellular space. Depending on cellular conditions, DAT is able to transport DA bi-directionally, but at normal membrane potential and Naþ gradient the inward transport ...
Engineering microfluidic concentration gradient generators for
... A microfluidic gradient generator manipulates small volumes of reagents, usually in nanolitres or microlitres, through networks of sub-micron to micrometer sized channels. The advances in microfabrication technology led to the continuous miniaturization of channel geometries, thereby reducing gradie ...
... A microfluidic gradient generator manipulates small volumes of reagents, usually in nanolitres or microlitres, through networks of sub-micron to micrometer sized channels. The advances in microfabrication technology led to the continuous miniaturization of channel geometries, thereby reducing gradie ...
Chediak-Higashi–Like Granules in Acute
... Fig 1. (A1) Two neutrophils from a case of APL with CH-like granules. The promyelocytes looks normal in all parameters except in the primary granules. They are more abundant than normally seen; they are immature, different sized, and there is no dark purple of blue mature azure granules. The PMN loo ...
... Fig 1. (A1) Two neutrophils from a case of APL with CH-like granules. The promyelocytes looks normal in all parameters except in the primary granules. They are more abundant than normally seen; they are immature, different sized, and there is no dark purple of blue mature azure granules. The PMN loo ...
Human Dendritic Cell Subsets In Vivo Colony
... G-CSF are well-known. For example, GM-CSF has been used as an effective vaccine adjuvant for protein- and peptide-based vaccines (15, 16). G-CSF, despite mobilizing large numbers of mononuclear cells, does not increase the severity of acute graft-versushost disease after allogeneic bone marrow trans ...
... G-CSF are well-known. For example, GM-CSF has been used as an effective vaccine adjuvant for protein- and peptide-based vaccines (15, 16). G-CSF, despite mobilizing large numbers of mononuclear cells, does not increase the severity of acute graft-versushost disease after allogeneic bone marrow trans ...
Rho signaling pathway and apical constriction in the - ICB-USP
... did observe a slight increase in the number of picnotic nuclei in the optic vesicle, these were not detected in the lens placode. Thus, we exclude the possibility that our phenotype is generated by a toxic effect of the drugs and conclude that these data indicate that both actin filament polymerizati ...
... did observe a slight increase in the number of picnotic nuclei in the optic vesicle, these were not detected in the lens placode. Thus, we exclude the possibility that our phenotype is generated by a toxic effect of the drugs and conclude that these data indicate that both actin filament polymerizati ...
The Shwachman-Diamond SBDS protein localizes to the nucleolus
... marrow failure in patients with SDS, although a subset of patients develops aplastic anemia. Lymphocyte defects7 and bone marrow stromal-cell dysfunction8 have also been described in patients with SDS. Thus, the disease phenotype is not restricted to myeloid cells but affects multiple hematopoietic ...
... marrow failure in patients with SDS, although a subset of patients develops aplastic anemia. Lymphocyte defects7 and bone marrow stromal-cell dysfunction8 have also been described in patients with SDS. Thus, the disease phenotype is not restricted to myeloid cells but affects multiple hematopoietic ...
Functional redundancy of mammalian Polycomb genes
... vertebrae, ectopic ribs are indicated by red arrowheads. In ventral views of rib cages, numbers of vertebrae to which ribs were attached are indicated. C1 vertebrae are counted as first vertebrae. In the scapula, note that the absence of acromion and generation of holes in the center of blades in Me ...
... vertebrae, ectopic ribs are indicated by red arrowheads. In ventral views of rib cages, numbers of vertebrae to which ribs were attached are indicated. C1 vertebrae are counted as first vertebrae. In the scapula, note that the absence of acromion and generation of holes in the center of blades in Me ...
Grape berry vacuole: a complex and heterogeneous membrane
... observable in some cells (Figure 2). The diversity of vacuolar functions parallels their diversity in ...
... observable in some cells (Figure 2). The diversity of vacuolar functions parallels their diversity in ...
articles - Saleh Lab
... organisms, such as Drosophila, certain cells can efficiently take up dsRNA but seem to be unable to transmit this dsRNA to other cells in the body4. dsRNA uptake without further transmission to other cells has also been reported for some mammalian cell types5–7. Other organisms (such as C. elegans o ...
... organisms, such as Drosophila, certain cells can efficiently take up dsRNA but seem to be unable to transmit this dsRNA to other cells in the body4. dsRNA uptake without further transmission to other cells has also been reported for some mammalian cell types5–7. Other organisms (such as C. elegans o ...
7 - Dynamic Microtubules and the Texture of Plant Cell Walls
... Van Iterson (1937) deduced that Tradescantia stamen hairs would have more or less transverse wall fibers. This is consistent with the biophysical explanation that transverse stress, which is twice the longitudinal force in an expanding cylinder, must be resisted by transverse hoop-reinforcement. Thi ...
... Van Iterson (1937) deduced that Tradescantia stamen hairs would have more or less transverse wall fibers. This is consistent with the biophysical explanation that transverse stress, which is twice the longitudinal force in an expanding cylinder, must be resisted by transverse hoop-reinforcement. Thi ...
Gain and Loss of Photosynthetic Membranes during
... The mature, functional chloroplasts of plants develop from proplastids, which are small, undifferentiated plastids that contain little or no thylakoids or photosynthetic complexes. In flowering plants (angiosperms), the transition from proplastids to photosynthetically competent chloroplasts takes p ...
... The mature, functional chloroplasts of plants develop from proplastids, which are small, undifferentiated plastids that contain little or no thylakoids or photosynthetic complexes. In flowering plants (angiosperms), the transition from proplastids to photosynthetically competent chloroplasts takes p ...
- Wiley Online Library
... p53 is localized to the nucleus in which it can activate or repress the transcription of many genes involved in regulating the main cellular responses to stress, such as cell cycle arrest, DNA repair, senescence and apoptosis, among others (Fig 1; [3,6–10]). It has, therefore, been proposed that p53 ...
... p53 is localized to the nucleus in which it can activate or repress the transcription of many genes involved in regulating the main cellular responses to stress, such as cell cycle arrest, DNA repair, senescence and apoptosis, among others (Fig 1; [3,6–10]). It has, therefore, been proposed that p53 ...
nimO is required for the G1/S transition
... restrictive temperature (43°C). nimO is therefore necessary for DNA synthesis, but the experiment does not show whether it is needed for initiation, elongation, or both. This question was resolved by measuring DNA synthesis in a reciprocal shift assay. nimO18 conidia were germinated at permissive te ...
... restrictive temperature (43°C). nimO is therefore necessary for DNA synthesis, but the experiment does not show whether it is needed for initiation, elongation, or both. This question was resolved by measuring DNA synthesis in a reciprocal shift assay. nimO18 conidia were germinated at permissive te ...
Salinity Effects on the Activity of Plasma Membrane H+ and Ca2+
... treatment (Bittisnich et al., 1989; Lynch et al., 1989; Okazaki et al., 1996), although others attribute these data to methodological drawbacks of dye loading (Cramer and Jones, 1996). The origin of these [Ca2 ]cyt changes is not clear. Both Ca2 transport through the plasma membrane and Ca2 relea ...
... treatment (Bittisnich et al., 1989; Lynch et al., 1989; Okazaki et al., 1996), although others attribute these data to methodological drawbacks of dye loading (Cramer and Jones, 1996). The origin of these [Ca2 ]cyt changes is not clear. Both Ca2 transport through the plasma membrane and Ca2 relea ...
Basic Fibroblast Growth Factor in Atria and Ventricles of the
... a dual effect; it stimulates embryonic myoblast proliferation (25, 26) and inhibits differentiation independently of cell division (42). bFGF is highly mitogenic for adult skeletal muscle stem (satellite) cells (3), is accumulated in satellite cell-rich muscles (25), and is thus considered to partic ...
... a dual effect; it stimulates embryonic myoblast proliferation (25, 26) and inhibits differentiation independently of cell division (42). bFGF is highly mitogenic for adult skeletal muscle stem (satellite) cells (3), is accumulated in satellite cell-rich muscles (25), and is thus considered to partic ...
The Role Of The Planar Cell Polarity Pathway In The Second Heart
... formation is essential for the survival of the embryo mainly due to its primary embryonic function of supplying oxygen and nutrients as required during development. ...
... formation is essential for the survival of the embryo mainly due to its primary embryonic function of supplying oxygen and nutrients as required during development. ...
An autophagy-related kinase is essential for the symbiotic
... involves the formation of an infection peg from the hyphopodium (specialized fungal cell involved in attachment to the plant host), which mediates fungal hyphal growth into the epidermal cell, and then a pre-penetration apparatus, which anticipates the direction of hyphal penetration in the plant ce ...
... involves the formation of an infection peg from the hyphopodium (specialized fungal cell involved in attachment to the plant host), which mediates fungal hyphal growth into the epidermal cell, and then a pre-penetration apparatus, which anticipates the direction of hyphal penetration in the plant ce ...
Inducers of Plant Systemic Acquired Resistance Regulate NPR1
... Gabriela M. Pastori and Christine H. Foyer (2002). Common Components, Networks, and Pathways of Cross-Tolerance to Stress. The Central Role of "Redox" and Abscisic Acid-Mediated Controls Plant Physiology 2002 129: 460-468. ...
... Gabriela M. Pastori and Christine H. Foyer (2002). Common Components, Networks, and Pathways of Cross-Tolerance to Stress. The Central Role of "Redox" and Abscisic Acid-Mediated Controls Plant Physiology 2002 129: 460-468. ...
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... 19746), the ZPA is too far from the tip to exert its polarizing activity (Summerbell, 1974a). It follows that the cells at the tip remember their exposure to the ZPA when they go on to form a reduplication. They may be said to have a positional memory. It is not known how long cells must be exposed ...
... 19746), the ZPA is too far from the tip to exert its polarizing activity (Summerbell, 1974a). It follows that the cells at the tip remember their exposure to the ZPA when they go on to form a reduplication. They may be said to have a positional memory. It is not known how long cells must be exposed ...
Lipopolysaccharide modulates neutrophil recruitment and
... change in acute inflammation? and 3) What are the molecular mechanisms of LPS-induced changes in lymphatic contractions? To address these questions, we designed a series of experiments to specifically delineate the association of two key innate immune cell populations, neutrophils and macrophages, w ...
... change in acute inflammation? and 3) What are the molecular mechanisms of LPS-induced changes in lymphatic contractions? To address these questions, we designed a series of experiments to specifically delineate the association of two key innate immune cell populations, neutrophils and macrophages, w ...
Acquisition of Hox codes during gastrulation and axial elongation in
... onset at primitive streak stages is absolutely required for a correct Hox patterning function. Most efforts to elucidate the molecular mechanisms that underlie regionalised Hox gene expression have focussed on relatively late developmental stages (reviewed by Deschamps et al., 1999). The few studies ...
... onset at primitive streak stages is absolutely required for a correct Hox patterning function. Most efforts to elucidate the molecular mechanisms that underlie regionalised Hox gene expression have focussed on relatively late developmental stages (reviewed by Deschamps et al., 1999). The few studies ...
Dictyostelium discoideum mutant synag 7 with altered G
... less sensitive to cyclic AMP than in wild-type cells, but in both cases the concentration of cyclic AMP that induced a response in 50% of the populations was between 10~ and 10 M (Table 1). Because synag 7 cells belong to different batches of cells, differences in their growing conditions may affect ...
... less sensitive to cyclic AMP than in wild-type cells, but in both cases the concentration of cyclic AMP that induced a response in 50% of the populations was between 10~ and 10 M (Table 1). Because synag 7 cells belong to different batches of cells, differences in their growing conditions may affect ...
The Young Mouse Heart Is Composed of Myocytes Heterogeneous
... progenitor cells that controls cardiomyogenesis imposes a reinterpretation of the fundamental mechanisms of growth and senescence of the heart.1 Traditionally, the heart was viewed as an organ characterized by a predetermined number of myocytes which is defined shortly after birth and is preserved t ...
... progenitor cells that controls cardiomyogenesis imposes a reinterpretation of the fundamental mechanisms of growth and senescence of the heart.1 Traditionally, the heart was viewed as an organ characterized by a predetermined number of myocytes which is defined shortly after birth and is preserved t ...
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.