cytochemical localization of acid phosphatases in euglena gracilis
... were r e s u s p e n d e d in a cacodylate-buffered (0.05 ~i; p H 7.2) solution of 4 per cent g l u t a r a l d e h y d e with 5 per cent sucrose, a n d left at 0 - 2 ° C for 30 m i n u t e s with occasional stirring. After 1 hour, the cells were washed two times in m a l a t e buffer (0.05 M, p H ...
... were r e s u s p e n d e d in a cacodylate-buffered (0.05 ~i; p H 7.2) solution of 4 per cent g l u t a r a l d e h y d e with 5 per cent sucrose, a n d left at 0 - 2 ° C for 30 m i n u t e s with occasional stirring. After 1 hour, the cells were washed two times in m a l a t e buffer (0.05 M, p H ...
Evidence for Gal3p`s Cytoplasmic Location
... apparently excluded from the nucleus but that Gal80p is located in both the cytoplasm and the nucleus and exhibits nucleoctyoplasmic shuttling. Alterations of Gal80p and Gal3p localizations have distinct effects on GAL gene induction. These results suggest that the subcellular localization patterns ...
... apparently excluded from the nucleus but that Gal80p is located in both the cytoplasm and the nucleus and exhibits nucleoctyoplasmic shuttling. Alterations of Gal80p and Gal3p localizations have distinct effects on GAL gene induction. These results suggest that the subcellular localization patterns ...
Histone H3 phosphorylation is required for the initiation, but not
... Colocalization was not observed between BrdU incorporated during the first 5 hours of S-phase, immediately following release from HU-block, and anti-PH3 staining 6 hours later in the subsequent G2 (Fig. 1E-H). To additionally determine the specificity of BrdU labeling in the above experiments, we la ...
... Colocalization was not observed between BrdU incorporated during the first 5 hours of S-phase, immediately following release from HU-block, and anti-PH3 staining 6 hours later in the subsequent G2 (Fig. 1E-H). To additionally determine the specificity of BrdU labeling in the above experiments, we la ...
Regulation by Polyamines of Ornithine
... whereas in untreated and putrescine- or spermidinetreated cultures, cells lost their motility before cell division (data not shown; for references, see Harris, 1989). These findings indicate that spermine affects the transition from the G1 to the S phase. In this context, it is important to know tha ...
... whereas in untreated and putrescine- or spermidinetreated cultures, cells lost their motility before cell division (data not shown; for references, see Harris, 1989). These findings indicate that spermine affects the transition from the G1 to the S phase. In this context, it is important to know tha ...
Receptor-Mediated Endocytosis in Plant Cells
... fluorescence image of the same field showing the location of the fluorescent elicitor (b, d, f, h, j, I, n, p, and r). As seen in the micrographs, soon after addition of the elicitor, sufficient amounts of the ligand accumulated at the cell surface to form a fluorescent outline surrounding each cell ...
... fluorescence image of the same field showing the location of the fluorescent elicitor (b, d, f, h, j, I, n, p, and r). As seen in the micrographs, soon after addition of the elicitor, sufficient amounts of the ligand accumulated at the cell surface to form a fluorescent outline surrounding each cell ...
Microfilaments Intermediate filaments
... Intermediate filaments range in diameter from 8–12 nanometers, larger than microfilaments but smaller than microtubules They support cell shape and fix organelles in place Intermediate filaments are more permanent cytoskeleton fixtures than the other two classes ...
... Intermediate filaments range in diameter from 8–12 nanometers, larger than microfilaments but smaller than microtubules They support cell shape and fix organelles in place Intermediate filaments are more permanent cytoskeleton fixtures than the other two classes ...
Cells in Physcomitrella patens
... Background: Differentiated plant cells can retain the capacity to be reprogrammed into pluripotent stem cells during regeneration. This capacity is associated with both cell cycle reactivation and acquisition of specific cellular characters. However, the molecular mechanisms underlying the reprogram ...
... Background: Differentiated plant cells can retain the capacity to be reprogrammed into pluripotent stem cells during regeneration. This capacity is associated with both cell cycle reactivation and acquisition of specific cellular characters. However, the molecular mechanisms underlying the reprogram ...
Cellular programs for arbuscular mycorrhizal symbiosis
... from the roots of phosphate-deprived plants [7], activate AM fungal metabolism and this results in hyphal branching in proximity to the root [8,9]. Following contact with the root surface, the fungus forms a hyphopodium through which it penetrates the epidermis. Entry into the epidermal cell and su ...
... from the roots of phosphate-deprived plants [7], activate AM fungal metabolism and this results in hyphal branching in proximity to the root [8,9]. Following contact with the root surface, the fungus forms a hyphopodium through which it penetrates the epidermis. Entry into the epidermal cell and su ...
Weekly Lesson Plans Teacher: Alicia Penfield Class: AP Biology
... The students will… The students will… Explain metabolism and the Explain why photosynthesis role of matter and energy in is an anabolic reaction, and this process. its overall purpose. Distinguish exergonic and Summarize each stage of endergonic reactions, and photosynthesis, including the g ...
... The students will… The students will… Explain metabolism and the Explain why photosynthesis role of matter and energy in is an anabolic reaction, and this process. its overall purpose. Distinguish exergonic and Summarize each stage of endergonic reactions, and photosynthesis, including the g ...
Why the activity of a gene depends on its neighbors
... middle of the gene or the terminus). Because TNFAIP2 is only 11 kb, it is soon transcribed and detaches; however, it often reattaches to be retranscribed (arrows). After 30 min the pioneer has transcribed 60 kb into SAMD4A, and reattached TNFAIP2 now lies close to the middle of SAMD4A (but no longer ...
... middle of the gene or the terminus). Because TNFAIP2 is only 11 kb, it is soon transcribed and detaches; however, it often reattaches to be retranscribed (arrows). After 30 min the pioneer has transcribed 60 kb into SAMD4A, and reattached TNFAIP2 now lies close to the middle of SAMD4A (but no longer ...
Cell migration: mechanisms of rear detachment and the formation of
... Cell migration is central to many biological and pathological processes, including embryogenesis, tissue repair and regeneration as well as cancer and the inflammatory response. In general, cell migration can be usefully conceptualized as a cyclic process. The initial response of a cell to a migrati ...
... Cell migration is central to many biological and pathological processes, including embryogenesis, tissue repair and regeneration as well as cancer and the inflammatory response. In general, cell migration can be usefully conceptualized as a cyclic process. The initial response of a cell to a migrati ...
to a prolonged period of sucrose deprivation
... the cell dry weight and total fatty acids (Fig. 5). The increase in the cell dry weight was attributable to a rapid accumulation of sucrose in the vacuolar reservoir and starch in plastids (not shown), whereas the increase in total cell fatty acids was attributable to the synthesis of new cytoplasmi ...
... the cell dry weight and total fatty acids (Fig. 5). The increase in the cell dry weight was attributable to a rapid accumulation of sucrose in the vacuolar reservoir and starch in plastids (not shown), whereas the increase in total cell fatty acids was attributable to the synthesis of new cytoplasmi ...
Neural stem cells in mammalian development
... Neural stem cells (NSCs) and their progeny in the developing forebrain. The NSCs (shown in blue) of the lateral ventricular wall change their shape and produce different progeny as the brain develops. They begin as neuroepithelial cells and transform into radial glial cells, which mature into astroc ...
... Neural stem cells (NSCs) and their progeny in the developing forebrain. The NSCs (shown in blue) of the lateral ventricular wall change their shape and produce different progeny as the brain develops. They begin as neuroepithelial cells and transform into radial glial cells, which mature into astroc ...
CELL STRUCTURE EXPLORATION ACTIVITIES
... is due by the end of the class period Friday, September 19, 2003. You may complete the work in class so you might want to do them in order. These activities will be done in class but you can also do them at The Task: Create concept cards for each of the following this packet in any order. Be sure t ...
... is due by the end of the class period Friday, September 19, 2003. You may complete the work in class so you might want to do them in order. These activities will be done in class but you can also do them at The Task: Create concept cards for each of the following this packet in any order. Be sure t ...
Deccox vs. Bovatec
... Bovatec works primarily on a single developmental stage of coccidia, providing a more narrow range of action than Deccox. Research has shown the total oocyst reduction with Bovatec to be 96%. Research studies evaluating the performance of both anticoccidial agents under the same conditions report si ...
... Bovatec works primarily on a single developmental stage of coccidia, providing a more narrow range of action than Deccox. Research has shown the total oocyst reduction with Bovatec to be 96%. Research studies evaluating the performance of both anticoccidial agents under the same conditions report si ...
Unit 8 Notes (Protista)
... • All obtain energy by photosynthesis. • All have chlorophyll a, but may have various other chlorophylls and different accessory pigments. • Phyla – Euglenophyta • One to three flagella, at their apical (leading) end ...
... • All obtain energy by photosynthesis. • All have chlorophyll a, but may have various other chlorophylls and different accessory pigments. • Phyla – Euglenophyta • One to three flagella, at their apical (leading) end ...
Bioinspirations: Cell-Inspired Small-Scale
... of molecular interactions is to be included in a single cell for greater behavioral complexity, compartmentation of the reactions within the cell can be utilized (Long et al. 2005; Noireaux et al. 2005). It is important to note that membrane-bounded compartments (e.g., liposomes) that are passive—an ...
... of molecular interactions is to be included in a single cell for greater behavioral complexity, compartmentation of the reactions within the cell can be utilized (Long et al. 2005; Noireaux et al. 2005). It is important to note that membrane-bounded compartments (e.g., liposomes) that are passive—an ...
Dates and Date Functions
... If you were to enter the date value 1/1/1900 in a cell, and then display formulas (or format it as a number), you would see 1 in the cell because that is the first date ...
... If you were to enter the date value 1/1/1900 in a cell, and then display formulas (or format it as a number), you would see 1 in the cell because that is the first date ...
Microinjected Fluorescent Phalloidin in Vivo
... cytoskeleton, particularly in the cell cortex. As phalloidin is known to have a stabilizing effect on F-actin, this may influence the natural microfilament turnover. Therefore, the microinjection of derivatized plant actin that is competent to co-assemble with endogenous actin would be an excellent ...
... cytoskeleton, particularly in the cell cortex. As phalloidin is known to have a stabilizing effect on F-actin, this may influence the natural microfilament turnover. Therefore, the microinjection of derivatized plant actin that is competent to co-assemble with endogenous actin would be an excellent ...
Cell transport with the environment
... Osmosis: The process of diffusion involving only the water molecule. Water molecules still move from an area of high concentration to an area of low concentration without the involvement of ATP. ...
... Osmosis: The process of diffusion involving only the water molecule. Water molecules still move from an area of high concentration to an area of low concentration without the involvement of ATP. ...
H3K4me3 demethylation by the histone
... H3 lysine 36 mono-methylation (H3K36me1), induced by the Set2 methyltransferase, is required for the recruitment of the Cdc45/GINS holo-helicase component Cdc45 (25). In eukaryotes, PR-Set7 adds one methyl group to H4K20, favoring the assembly of the core helicase (26,27). The methylation of the lys ...
... H3 lysine 36 mono-methylation (H3K36me1), induced by the Set2 methyltransferase, is required for the recruitment of the Cdc45/GINS holo-helicase component Cdc45 (25). In eukaryotes, PR-Set7 adds one methyl group to H4K20, favoring the assembly of the core helicase (26,27). The methylation of the lys ...
Translational control of meiotic cell cycle progression
... structure in the 5⬘ UTR, and eIF4G serves as a crucial scaffold to bring those two proteins together. eIF4G also binds an additional key regulator of translation initiation, poly(A)-binding protein (PABP) (Tarun and Sachs, 1996). An important outstanding question for how sequential developmental eve ...
... structure in the 5⬘ UTR, and eIF4G serves as a crucial scaffold to bring those two proteins together. eIF4G also binds an additional key regulator of translation initiation, poly(A)-binding protein (PABP) (Tarun and Sachs, 1996). An important outstanding question for how sequential developmental eve ...
Cell cycle
The cell cycle or cell-division cycle is the series of events that take place in a cell leading to its division and duplication (replication) that produces two daughter cells. In prokaryotes which lack a cell nucleus, the cell cycle occurs via a process termed binary fission. In cells with a nucleus, as in eukaryotes, the cell cycle can be divided into three periods: interphase, the mitotic (M) phase, and cytokinesis. During interphase, the cell grows, accumulating nutrients needed for mitosis, preparing it for cell division and duplicating its DNA. During the mitotic phase, the cell splits itself into two distinct daughter cells. During the final stage, cytokinesis, the new cell is completely divided. To ensure the proper division of the cell, there are control mechanisms known as cell cycle checkpoints.The cell-division cycle is a vital process by which a single-celled fertilized egg develops into a mature organism, as well as the process by which hair, skin, blood cells, and some internal organs are renewed. After cell division, each of the daughter cells begin the interphase of a new cycle. Although the various stages of interphase are not usually morphologically distinguishable, each phase of the cell cycle has a distinct set of specialized biochemical processes that prepare the cell for initiation of cell division.