Morphogenesis
... (1) Holoblastic: entire egg cleaves (equal or unequal) (2) Meroblastic: only a small disc of cytoplasm cleaves ...
... (1) Holoblastic: entire egg cleaves (equal or unequal) (2) Meroblastic: only a small disc of cytoplasm cleaves ...
Role of inducible NO synthase in cell signalling
... by iNOS interact with thiol groups or transition-metalcontaining proteins and can alter protein function or initiate gene expression to protect cells. There is a continuous shift at even higher concentrations of NO towards cell damage or apoptosis, with other factors in the microenvironment of a cel ...
... by iNOS interact with thiol groups or transition-metalcontaining proteins and can alter protein function or initiate gene expression to protect cells. There is a continuous shift at even higher concentrations of NO towards cell damage or apoptosis, with other factors in the microenvironment of a cel ...
Bellairs pm6.5 - The International Journal of Developmental Biology
... they form a monolayer over the yolk mass and exhibit contact inhibition of locomotion, although after they have covered the entire yolk surface they abandon this behaviour and cease to be monolayered. Other examples were reported for Fundulus embryos (Trinkaus, 1984) but otherwise there appear to be ...
... they form a monolayer over the yolk mass and exhibit contact inhibition of locomotion, although after they have covered the entire yolk surface they abandon this behaviour and cease to be monolayered. Other examples were reported for Fundulus embryos (Trinkaus, 1984) but otherwise there appear to be ...
Morphological classification of plant cell deaths
... Programmed cell death (PCD) is an integral part of plant development and of responses to abiotic stress or pathogens. Although the morphology of plant PCD is, in some cases, well characterised and molecular mechanisms controlling plant PCD are beginning to emerge, there is still confusion about the ...
... Programmed cell death (PCD) is an integral part of plant development and of responses to abiotic stress or pathogens. Although the morphology of plant PCD is, in some cases, well characterised and molecular mechanisms controlling plant PCD are beginning to emerge, there is still confusion about the ...
cell – structure and function
... (i) The plasma membrane encloses the cell contents. (ii) It provides cell shape (in animal cells) e.g. the characteristic shape of red blood cells, nerve cells, and bone cells. (iii) It allows transport of certain substances into and out of the cell but not all substances so much it is termed ‘selec ...
... (i) The plasma membrane encloses the cell contents. (ii) It provides cell shape (in animal cells) e.g. the characteristic shape of red blood cells, nerve cells, and bone cells. (iii) It allows transport of certain substances into and out of the cell but not all substances so much it is termed ‘selec ...
Additional Science Biology Summary
... Most human and animal cells have the following parts: A nucleus, which controls the activities of the cell Cytoplasm, in which most of the chemical reactions take place A cell membrane, which controls the passage of substances into and out of the cell Mitochondria, which are where most energy is re ...
... Most human and animal cells have the following parts: A nucleus, which controls the activities of the cell Cytoplasm, in which most of the chemical reactions take place A cell membrane, which controls the passage of substances into and out of the cell Mitochondria, which are where most energy is re ...
Parallels between tissue repair and embryo morphogenesis
... consisting largely of the production of neutrophils and then macrophages, which emigrate from the rich capillary network within the granulation tissue. These cells kill invading microbes, and mop up cell and matrix debris; they are also a rich source of growth factors and cytokines that possibly coo ...
... consisting largely of the production of neutrophils and then macrophages, which emigrate from the rich capillary network within the granulation tissue. These cells kill invading microbes, and mop up cell and matrix debris; they are also a rich source of growth factors and cytokines that possibly coo ...
Division Cycle in Yeast
... vides a visual marker of the position of the cell in the cycle. We have taken advantage of these features of the S. cerevisiae cell cycle in the isolation and characterization of 150 temperature-sensitive mutants of the cell division cycle (cdc mutants). These mutants are temperature-sensitive in t ...
... vides a visual marker of the position of the cell in the cycle. We have taken advantage of these features of the S. cerevisiae cell cycle in the isolation and characterization of 150 temperature-sensitive mutants of the cell division cycle (cdc mutants). These mutants are temperature-sensitive in t ...
Effect of Water Stress on Cell Division and Cell
... Little is known about the effects of water stress on rates of cell division or on mitotic activity in leaves. Roots have received more attention. In roots there was a rapid decrease in mitotic activity after imposition of water stress (Yee and Rost, 1982; Robertson et al., 1990b; Bitonti et al., 199 ...
... Little is known about the effects of water stress on rates of cell division or on mitotic activity in leaves. Roots have received more attention. In roots there was a rapid decrease in mitotic activity after imposition of water stress (Yee and Rost, 1982; Robertson et al., 1990b; Bitonti et al., 199 ...
2 fermentation:principlesandtechnology
... possibly vitamins plus oxygen if aerobic. The nutrients should be formulated to promote the synthesis of the target product, either cell biomass or a specific metabolite. In most industrial fermentation processes there are several stages where media are required. They may include several inoculum (s ...
... possibly vitamins plus oxygen if aerobic. The nutrients should be formulated to promote the synthesis of the target product, either cell biomass or a specific metabolite. In most industrial fermentation processes there are several stages where media are required. They may include several inoculum (s ...
THE RESPIRATORY SYSTEM
... Each alveoli wall usually lies between two neighbouring alveoli and is called an inter-alveolar septum. An alveolar septum consists of two thin squamous epithelial layers between which lie capillaries, fibroblasts, elastic and reticular fibers and macrophages. The capillaries and the connectiv ...
... Each alveoli wall usually lies between two neighbouring alveoli and is called an inter-alveolar septum. An alveolar septum consists of two thin squamous epithelial layers between which lie capillaries, fibroblasts, elastic and reticular fibers and macrophages. The capillaries and the connectiv ...
Pulsatile Stretch Remodels Cell-to-Cell Communication in Cultured
... 24 hours of relaxation. Nonpulsatile (static) stretch produced qualitatively similar but significantly smaller changes than pulsatile stretch. Thus, pulsatile linear stretch in vitro causes marked upregulation of proteins that form electrical and mechanical junctions, as well as a concomitant increa ...
... 24 hours of relaxation. Nonpulsatile (static) stretch produced qualitatively similar but significantly smaller changes than pulsatile stretch. Thus, pulsatile linear stretch in vitro causes marked upregulation of proteins that form electrical and mechanical junctions, as well as a concomitant increa ...
Mechanisms of cell rearrangement and cell
... 12 hours after the second molt and finishing 36 hours later To understand better how distinct TF cell clusters are formed, shortly before puparium formation. Stacks emerge in a twoovaries were stained with phalloidin, which binds to actin dimensional pattern which is oriented along the medial-latera ...
... 12 hours after the second molt and finishing 36 hours later To understand better how distinct TF cell clusters are formed, shortly before puparium formation. Stacks emerge in a twoovaries were stained with phalloidin, which binds to actin dimensional pattern which is oriented along the medial-latera ...
CD38 positive natural killer cells may be involved in progression of
... Abstract: This study is to investigate the role of CD38 positive natural killer (NK) cells in peripheral blood (PB) and synovial fluid (SF) in the pathogenesis of rheumatoid arthritis (RA). Paired samples of PB and synovial fluid (SF) were obtained from patients with RA, osteoarthritis (OA), and ura ...
... Abstract: This study is to investigate the role of CD38 positive natural killer (NK) cells in peripheral blood (PB) and synovial fluid (SF) in the pathogenesis of rheumatoid arthritis (RA). Paired samples of PB and synovial fluid (SF) were obtained from patients with RA, osteoarthritis (OA), and ura ...
Rapid Identification of ESKAPE Bacterial Strains Using an
... requires expensive instruments that are costly to operate and maintain [8,9]. The cost and size of these instruments also restricts their use for point-of-care medicine and necessitates the establishment of centralized labs for high-throughput analysis of clinical samples. The assays in most modern ...
... requires expensive instruments that are costly to operate and maintain [8,9]. The cost and size of these instruments also restricts their use for point-of-care medicine and necessitates the establishment of centralized labs for high-throughput analysis of clinical samples. The assays in most modern ...
Cannibalism and fratricide: mechanisms and raisons d`être
... the global transcription pattern at the onset of sporulation11. A complex network consisting of the histidine kinases KinA–E, the phosphorelay proteins Spo0F and Spo0B, several phosphatases and other transcriptional regulators controls the level of Spo0A~P in the cell. This network monitors and resp ...
... the global transcription pattern at the onset of sporulation11. A complex network consisting of the histidine kinases KinA–E, the phosphorelay proteins Spo0F and Spo0B, several phosphatases and other transcriptional regulators controls the level of Spo0A~P in the cell. This network monitors and resp ...
Immunohistochemical study of parathyroid hormone-related
... possible that the urothelial cell layers which normally express PTHrP during the dierentiation of the bladder have been stimulated to grow by the denervation. During this process of `re-differentiation', a more immature epithelium becomes prominent, and is less susceptible to apoptosis as a result ...
... possible that the urothelial cell layers which normally express PTHrP during the dierentiation of the bladder have been stimulated to grow by the denervation. During this process of `re-differentiation', a more immature epithelium becomes prominent, and is less susceptible to apoptosis as a result ...
A DNA damage checkpoint pathway coordinates the
... RNAi procedures: To perform the silencing constructs of atr1 and chk1 genes, we constructed a recipient plasmid carrying the gpdII promoter, an efficient constitutive promoter from Agaricus bisporus previously used in C. cinerea (BURNS et al. 2005); as a fungal transcriptional terminator we used the ...
... RNAi procedures: To perform the silencing constructs of atr1 and chk1 genes, we constructed a recipient plasmid carrying the gpdII promoter, an efficient constitutive promoter from Agaricus bisporus previously used in C. cinerea (BURNS et al. 2005); as a fungal transcriptional terminator we used the ...
4)Cell wall
... 1-They are heterotrophs. That is, they cannot manufacture their own food from simple compounds as plants are able to do. So they are dependent on other organisms to produce their foods, e.g., sugars, starches, proteins, fats, etc. Fungi can be further divided into saprobes, parasites, symbionts, fac ...
... 1-They are heterotrophs. That is, they cannot manufacture their own food from simple compounds as plants are able to do. So they are dependent on other organisms to produce their foods, e.g., sugars, starches, proteins, fats, etc. Fungi can be further divided into saprobes, parasites, symbionts, fac ...
THE RESPIRATORY SYSTEM
... Each alveoli wall usually lies between two neighbouring alveoli and is called an inter-alveolar septum. An alveolar septum consists of two thin squamous epithelial layers between which lie capillaries, fibroblasts, elastic and reticular fibers and macrophages. The capillaries and the connectiv ...
... Each alveoli wall usually lies between two neighbouring alveoli and is called an inter-alveolar septum. An alveolar septum consists of two thin squamous epithelial layers between which lie capillaries, fibroblasts, elastic and reticular fibers and macrophages. The capillaries and the connectiv ...
Growth of a Tryptophanase-producing Thermophile
... and anteiso-C, :o acids are the major cellular fatty acids. The type strain is strain IAM 13621. ...
... and anteiso-C, :o acids are the major cellular fatty acids. The type strain is strain IAM 13621. ...
THE RESPIRATORY SYSTEM
... Each alveoli wall usually lies between two neighbouring alveoli and is called an inter-alveolar septum. An alveolar septum consists of two thin squamous epithelial layers between which lie capillaries, fibroblasts, elastic and reticular fibers and macrophages. The capillaries and the connectiv ...
... Each alveoli wall usually lies between two neighbouring alveoli and is called an inter-alveolar septum. An alveolar septum consists of two thin squamous epithelial layers between which lie capillaries, fibroblasts, elastic and reticular fibers and macrophages. The capillaries and the connectiv ...
Vacuolar system distribution in Arabidopsis
... different sizes were visible in all cells. Electron microscopy observations combined with immunogold labelling experiments, carried out on similar structures in other laboratories, showed that the larger compartments are ERassociated bodies, while the smaller ones are Golgi bodies (Hawes et al., 200 ...
... different sizes were visible in all cells. Electron microscopy observations combined with immunogold labelling experiments, carried out on similar structures in other laboratories, showed that the larger compartments are ERassociated bodies, while the smaller ones are Golgi bodies (Hawes et al., 200 ...
Cell culture
Cell culture is the process by which cells are grown under controlled conditions, generally outside of their natural environment. In practice, the term ""cell culture"" now refers to the culturing of cells derived from multicellular eukaryotes, especially animal cells, in contrast with other types of culture that also grow cells, such as plant tissue culture, fungal culture, and microbiological culture (of microbes). The historical development and methods of cell culture are closely interrelated to those of tissue culture and organ culture. Viral culture is also related, with cells as hosts for the viruses. The laboratory technique of maintaining live cell lines (a population of cells descended from a single cell and containing the same genetic makeup) separated from their original tissue source became more robust in the middle 20th century.