Precise control of plant stem cell activity through parallel regulatory
... does therefore not necessarily imply either extra division, failure to differentiate or more cells with CSC-like identity. Live-imaging of root development is also not an optimal solution to monitor CSC activity, due to the experimental duration, small sample sizes and growth and movement in all dim ...
... does therefore not necessarily imply either extra division, failure to differentiate or more cells with CSC-like identity. Live-imaging of root development is also not an optimal solution to monitor CSC activity, due to the experimental duration, small sample sizes and growth and movement in all dim ...
Membrane trafficking in Drosophila wing and eye development
... patterning. Indeed, founding members of several important signaling pathways that are conserved across many species, such as Wingless, Notch, and Hedgehog, were first identified by studying genetic mutants in Drosophila that perturb the development of these tissues. In developmental contexts inter-cel ...
... patterning. Indeed, founding members of several important signaling pathways that are conserved across many species, such as Wingless, Notch, and Hedgehog, were first identified by studying genetic mutants in Drosophila that perturb the development of these tissues. In developmental contexts inter-cel ...
Isolation and purification of cell wall polysaccharide of Bacillus
... chemical c o m p o s i t i o n s is shown by the fact that the total a m o u n t of hexose per milligram of polysaccharide is the same as that of galactose for each sample (Table 1). Successful isolation of a pure polysaccharide from B. anthracis will ultimately lead to p r o p e r c h a r a c t e r ...
... chemical c o m p o s i t i o n s is shown by the fact that the total a m o u n t of hexose per milligram of polysaccharide is the same as that of galactose for each sample (Table 1). Successful isolation of a pure polysaccharide from B. anthracis will ultimately lead to p r o p e r c h a r a c t e r ...
comparative study of extracellular fibrils on the ectodermal layer in
... R. pipiens with the sperm of Rana catesbeiana. Early gastrulae lack extracellular fibrils. Late gastrulae, however, did have an amorphous layer of extracellular materials coating the inner aspect of the roof of the blastocoel. The scarcity of fibrils inXenopus and the lack of them in Rana, can be in ...
... R. pipiens with the sperm of Rana catesbeiana. Early gastrulae lack extracellular fibrils. Late gastrulae, however, did have an amorphous layer of extracellular materials coating the inner aspect of the roof of the blastocoel. The scarcity of fibrils inXenopus and the lack of them in Rana, can be in ...
Zebra Fish and Finding the Cure for Fanconi Anemia
... zebrafish chronically infected with Pseudocapillaria (3 months post infection in experiment 2) showed increased numbers of neutrophils compared to intestine of uninfected fish. ...
... zebrafish chronically infected with Pseudocapillaria (3 months post infection in experiment 2) showed increased numbers of neutrophils compared to intestine of uninfected fish. ...
rumex l. species induce apoptosis in 1301, eol-1 and h
... more sensitive to the extracts used in the experiment. Only extracts of the fruits of R. obtusifolius are characterized by greater activity on the cell line 1301. It was also noted that within a given species (for two leukemia lines) there were small differences in IC50 values for: the roots and lea ...
... more sensitive to the extracts used in the experiment. Only extracts of the fruits of R. obtusifolius are characterized by greater activity on the cell line 1301. It was also noted that within a given species (for two leukemia lines) there were small differences in IC50 values for: the roots and lea ...
Life: The Science of Biology, 9e
... Net movement is directional until equilibrium is reached. Diffusion is the net movement from regions of greater concentration to regions of lesser concentration. ...
... Net movement is directional until equilibrium is reached. Diffusion is the net movement from regions of greater concentration to regions of lesser concentration. ...
Cellular Senescence and the Biology of Aging, Disease, and Frailty
... health. Aging is the major risk factor for cardiovascular disease, cancer, Alzheimer’s disease, diabetes, arthritis, osteoporosis, blindness, and several other chronic conditions with profound consequences and enormous medical costs. For many, aging also leads to the incapacity to respond to stress ...
... health. Aging is the major risk factor for cardiovascular disease, cancer, Alzheimer’s disease, diabetes, arthritis, osteoporosis, blindness, and several other chronic conditions with profound consequences and enormous medical costs. For many, aging also leads to the incapacity to respond to stress ...
STRUCTURE-FUNCTION RELATIONSHIPS IN
... tron-opaque line at the lipid-cytoplasmic junction is prominent . Although such droplets may be of moderate size, they are generally small and occur in groups . Groups of small droplets are most frequently located adjacent to larger droplets or to the large, central droplet . Only amorphous ground s ...
... tron-opaque line at the lipid-cytoplasmic junction is prominent . Although such droplets may be of moderate size, they are generally small and occur in groups . Groups of small droplets are most frequently located adjacent to larger droplets or to the large, central droplet . Only amorphous ground s ...
ch 7
... Most joints of the skeleton are ____________________ joints, which are more complex than fibrous or cartilaginous joints. What is the articular end of this kind of joint covered with? These joints have a joint ___________________ formed from the ________________ and the ______________. This space is ...
... Most joints of the skeleton are ____________________ joints, which are more complex than fibrous or cartilaginous joints. What is the articular end of this kind of joint covered with? These joints have a joint ___________________ formed from the ________________ and the ______________. This space is ...
- Wiley Online Library
... cells (Eschen-Lippold et al., 2012). Consistent with the previous studies, we found that in M. truncatula, the AtUBQ10 promoter provided uniform expression in cells throughout the root (Figure S1a, b). The MtBCP1 promoter drives AM symbiosis-specific gene expression specifically in regions of the ro ...
... cells (Eschen-Lippold et al., 2012). Consistent with the previous studies, we found that in M. truncatula, the AtUBQ10 promoter provided uniform expression in cells throughout the root (Figure S1a, b). The MtBCP1 promoter drives AM symbiosis-specific gene expression specifically in regions of the ro ...
The Human Body in Health and Illness
... Cell Structure and Function Summary (cont’d.) Cell Structure Function Ribosomes Sites of protein synthesis Lysosomes ...
... Cell Structure and Function Summary (cont’d.) Cell Structure Function Ribosomes Sites of protein synthesis Lysosomes ...
Chapter 6 The Cell
... Regulation • The cytoskeleton helps to support the cell and maintain its shape • It interacts with motor proteins to produce motility • Inside the cell, vesicles can travel along “monorails” provided by the cytoskeleton • Recent evidence suggests that the cytoskeleton may help regulate biochemical a ...
... Regulation • The cytoskeleton helps to support the cell and maintain its shape • It interacts with motor proteins to produce motility • Inside the cell, vesicles can travel along “monorails” provided by the cytoskeleton • Recent evidence suggests that the cytoskeleton may help regulate biochemical a ...
Positive and negative roles for cddO in cell cycle
... in Gi/Gr> Before Start, cells can enter any of these developmental pathways, but once Start has been traversed cells are committed to complete the subsequent S-phase and mitosis. In S.cerevisiae, the Cdc28 cyclin-dependent kinase is required at Start (reviewed in 4), as well as a number of structura ...
... in Gi/Gr> Before Start, cells can enter any of these developmental pathways, but once Start has been traversed cells are committed to complete the subsequent S-phase and mitosis. In S.cerevisiae, the Cdc28 cyclin-dependent kinase is required at Start (reviewed in 4), as well as a number of structura ...
The Cell
... Regulation • The cytoskeleton helps to support the cell and maintain its shape • It interacts with motor proteins to produce motility • Inside the cell, vesicles can travel along “monorails” provided by the cytoskeleton • Recent evidence suggests that the cytoskeleton may help regulate biochemical a ...
... Regulation • The cytoskeleton helps to support the cell and maintain its shape • It interacts with motor proteins to produce motility • Inside the cell, vesicles can travel along “monorails” provided by the cytoskeleton • Recent evidence suggests that the cytoskeleton may help regulate biochemical a ...
Endoplasmosis and exoplasmosis: the evolutionary principles
... This concept is in line with the fact that there are many similarities between different forms of endoplasmosis or exoplasmosis, meaning trans- and cis-membrane fusion events, respectively. A common feature of endoplasmosis is the requirement for coat proteins at the plasmatic face of the membrane ( ...
... This concept is in line with the fact that there are many similarities between different forms of endoplasmosis or exoplasmosis, meaning trans- and cis-membrane fusion events, respectively. A common feature of endoplasmosis is the requirement for coat proteins at the plasmatic face of the membrane ( ...
CYTOCHALASIN B: ASPECTS OF PHAGOCYTOSIS IN NUTRIENT
... less than 37 /tg per ml. They observed that the cells in the nutrient medium were of less than normal size after exposures to the drug lasting for 24 h. This led them to suggest that cytochalasin B in this concentration interferes with food uptake in Tetrahymena. We too, have observed that addition ...
... less than 37 /tg per ml. They observed that the cells in the nutrient medium were of less than normal size after exposures to the drug lasting for 24 h. This led them to suggest that cytochalasin B in this concentration interferes with food uptake in Tetrahymena. We too, have observed that addition ...
Chapter 6
... Regulation • The cytoskeleton helps to support the cell and maintain its shape • It interacts with motor proteins to produce motility • Inside the cell, vesicles can travel along “monorails” provided by the cytoskeleton • Recent evidence suggests that the cytoskeleton may help regulate biochemical a ...
... Regulation • The cytoskeleton helps to support the cell and maintain its shape • It interacts with motor proteins to produce motility • Inside the cell, vesicles can travel along “monorails” provided by the cytoskeleton • Recent evidence suggests that the cytoskeleton may help regulate biochemical a ...
Role of reactive oxygen species in cell signalling pathways Abstract
... signalling molecules : they are small, and can diffuse short distances ; there are several mechanisms for their production, some of which are rapid and controllable ; and there are numerous mechanisms for their rapid removal. Work based on the release of ROS by cells which do not have a role in phag ...
... signalling molecules : they are small, and can diffuse short distances ; there are several mechanisms for their production, some of which are rapid and controllable ; and there are numerous mechanisms for their rapid removal. Work based on the release of ROS by cells which do not have a role in phag ...
Extracellular matrix
In biology, the extracellular matrix (ECM) is a collection of extracellular molecules secreted by cells that provides structural and biochemical support to the surrounding cells. Because multicellularity evolved independently in different multicellular lineages, the composition of ECM varies between multicellular structures; however, cell adhesion, cell-to-cell communication and differentiation are common functions of the ECM.The animal extracellular matrix includes the interstitial matrix and the basement membrane. Interstitial matrix is present between various animal cells (i.e., in the intercellular spaces). Gels of polysaccharides and fibrous proteins fill the interstitial space and act as a compression buffer against the stress placed on the ECM. Basement membranes are sheet-like depositions of ECM on which various epithelial cells rest.The plant ECM includes cell wall components, like cellulose, in addition to more complex signaling molecules. Some single-celled organisms adopt multicelluar biofilms in which the cells are embedded in an ECM composed primarily of extracellular polymeric substances (EPS).