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Ch. 27 & 28 Notes
Ch. 27 & 28 Notes

...  Experiments using prokaryotes have led to important advances in DNA technology  Prokaryotes are the principal agents in bioremediation  The use of organisms to remove pollutants from the environment  Prokaryotes are also major tools in  Mining, the synthesis of vitamins, production of antibiot ...
Retinal Ganglion Cells in Goldfish
Retinal Ganglion Cells in Goldfish

... total of 15 subtypes (four for three types, three for the other). The retina of the goldfish grows by a balloon-like expansion, and by the addition of new neurons, in annuli, at the margin. Therefore, a similar cell type may be examined at a variety of stages of development in the same retina, as we ...
Molecular General and Genetics
Molecular General and Genetics

... physical and chemical properties of cationic PODs have been the subject of numerous studies. Analysis and comparison of POD sequences has shown that plant PODs are not related to any known animal heme-containing POD, whereas they are structurally homologous to yeast cytochrome c POD and bacterial ca ...
Photosynthetic acclimation in the context of structural constraints to
Photosynthetic acclimation in the context of structural constraints to

... plasmodesmatal connections between mesophyll and phloem tissues are frequent, and sugar diffuses all the way from the mesophyll to the sieve elements via plasmodesmata (Gamalei 1989, 1991; van Bel 1993). In these species, the minor vein companion cells are very distinctive, with extremely abundant, ...
Arabidopsis mutants in sphingolipid synthesis as tools to
Arabidopsis mutants in sphingolipid synthesis as tools to

... interactions and tracking of fluorescent particles may give more information of the PD microdomains (Jacobson et al., 2007; Pike, 2009; Lingwood and Simons, 2010). Given the high elusiveness of the structure and organization of PD, microdomain studies require other approaches as the use of Arabidops ...
Japanese encephalitis virus replication is negatively regulated by
Japanese encephalitis virus replication is negatively regulated by

... several viral infections. Here we examine the role of autophagy in the life cycle of JEV, a neurotropic flavivirus. JEV infection leads to induction of autophagy in several cell types. JEV replication was significantly enhanced in neuronal cells where autophagy was rendered dysfunctional by ATG7 dep ...
Full-Text PDF
Full-Text PDF

... 3.1. gK/pUL20 Cause the Internalization of gD and gH/gL in Transfected Cells Whilst it is known that gM can mediate the internalization of gD and gH/gL [6], subsequent studies suggest that during infection other mechanisms may also be in place to mediate gD and gH/gL localization to viral assembly c ...
Translocation of Magnaporthe oryzae Effectors into
Translocation of Magnaporthe oryzae Effectors into

... Determining the nature of the interface between blast IH and the host cytoplasm is critical for understanding translocation of blast effectors into the host cytoplasm. So far, two lines of evidence suggest that IH are sealed within a distinct apoplastic compartment that is separated from both the sy ...
Long-Term Persistent Vesicular Stomatitis Virus and Rabies Virus
Long-Term Persistent Vesicular Stomatitis Virus and Rabies Virus

... persistently infected carrier cell line described previously (Holland & Villarreal, I974). It was established originally using B virions and T particles of the ts G3I mutant of Pringle (I97o). This carrier was twice re-exposed to ts 31 B virions at m.o.i. = IOO to ensure infection of every cell. (Th ...
COTYLEDON VASCULAR PATTERN2–Mediated
COTYLEDON VASCULAR PATTERN2–Mediated

... mutant, and because transgenic plants harboring full-length TAC clones failed to complement cvp2, we were able to further refine the map position of CVP2 to overlapping BACs T25N20 and F3F20. Additional potential CVP2-containing clones derived from a BAC F3F20 library and a binary cosmid library (Sc ...
Resistance of IAPs to methylation reprogramming may provide a
Resistance of IAPs to methylation reprogramming may provide a

... also reported in primordial germ cells (Walsh et al., 1998; Hajkova et al., 2002). However, a precise analysis by bisulphite sequencing of these elements at various critical stages of development is lacking. Such an analysis is particularly important in the light of observations of epigenetic inheri ...
Inflammation and fever
Inflammation and fever

... of their DNA, RNA and vital proteins. Extremly low temperature is able to form crystals inside the cell. Mild decrease in temperature causes paralysis of vasomotors and an increase in permeability of vessels. Blood viscosity rises proportionally with the lowering temperature and cells are destroyed ...
Auxin transport through non-hair cells sustains root
Auxin transport through non-hair cells sustains root

... Auxin distribution is controlled by the movement of auxin into and out of individual cells. Protonated auxin enters cells from the cell wall by diffusion, while the ion enters via the activity of AUX1/LAX auxin-influx facilitators. AUX1 activity increases efficiency of auxin uptake compared to diffu ...
Complex array of endobionts in Petalomonas sphagnophila
Complex array of endobionts in Petalomonas sphagnophila

... characteristics of P. sphagnophila is the presence of several green-pigmented particles B5 lm in diameter in its cytoplasm, which a previously published study suggested to be cyanobacterial endosymbionts. New data presented here, however, suggest that the green intracellular body may not be a cyanob ...
Molecular Plant-Microbe Interactions
Molecular Plant-Microbe Interactions

... MaEXP1 encodes an α-expansin protein and, furthermore, that MaEXP1, similar to its soybean counterparts, GmEXP1 and GmEXP2 (Lee et al. 2003), may exist as a single-copy gene. Transcript accumulation in roots following inoculation. The level of MaEXP1 transcript accumulation was analyzed in roots at ...
Short Article Zebrafish Slow Muscle Cell Migration Induces a Wave
Short Article Zebrafish Slow Muscle Cell Migration Induces a Wave

... change in cell shape is necessary for normal myofiber contractility and function. It has been thought that nascent myocytes that give rise to the chick myotome are derived from two populations of stem cells in the dermomyotome, the dorsomedial lip and the ventrolateral lip (Denetclaw et al., 1997, 2 ...
The membrane form of the DNA repair protein Ku interacts at the cell
The membrane form of the DNA repair protein Ku interacts at the cell

... Figure 1 Ku80 and MMP-9 interaction in yeast cells. (A) Schematic domain structure of full-length Ku80 and MMP-9 and schematic representation of deletion constructs. Ku80 (aa 222–732) fused to GAL4 DNA-binding domain was used as bait in a two-hybrid screen of cDNA human bone marrow library. (B) In t ...
Review Article Expression and Function of the Endocannabinoid
Review Article Expression and Function of the Endocannabinoid

... Endocannabinoids are important retrograde modulators of synaptic transmission throughout the nervous system. Cannabinoid receptors are seven transmembrane G-protein coupled receptors favoring Gi/o protein. They are known to play an important role in various processes, including metabolic regulation, ...
BS Biology: Physician Assistant
BS Biology: Physician Assistant

... prescribing medication; and counseling patients about preventative care. Upon graduation, PAs take a national certification examination administered by the National Commission on Certification of Physician Assistants. PAs work in all areas of medicine, with most working in general or family practice ...
Lactose Uptake Driven by Galactose Efflux in Streptococcus
Lactose Uptake Driven by Galactose Efflux in Streptococcus

... Organisms and growth conditions. S. thermophilus TS2 was used for all experiments. This strain is unable to ferment free galactose and excretes galactose into the extracellular environment when grown in medium containing excess lactose (21, 22). The organism was routinely propagated at 42°C in Ellik ...
univERsity oF copEnhAGEn
univERsity oF copEnhAGEn

... 2008), and cell wall pH has been measured by use of pHluorins (Gao et al., 2004) or apo-pHusion (Gjetting et al., 2012) secreted to the apoplast. Looking closer at these experiments, some obvious similarities are seen. It can be argued that successful experiments are often carried out in single cell ...
1.2 Unifying Themes of Biology
1.2 Unifying Themes of Biology

... • Homeostasis is the maintenance of constant, stable internal conditions through automatic response and behavior. Organisms must maintain homeostasis to survive in diverse environments • Temperature regulation ...
Two Plant–Viral Movement Proteins Traffic in the
Two Plant–Viral Movement Proteins Traffic in the

... localization and plasmodesmatal targeting. Later in the expression cycle, both fusion proteins were incorporated into vesicular structures. TGB2 associated with these structures on its own, but TGB3 could not be incorporated into the vesicles in the absence of TGB2. Moreover, in addition to localiza ...
Motor protein control of ion flux is an early step in embryonic left
Motor protein control of ion flux is an early step in embryonic left

... synthesize a number of recent findings into a different model for the initiation of LR asymmetry. The goal is not to focus on problems with the cilia model or to rule out cilia as part of LR patterning; some aspect of the cilia model is almost surely right (at least in mice). Instead, I would like t ...
Complex Receptive Fields in Primary Visual Cortex
Complex Receptive Fields in Primary Visual Cortex

... brightness modified the firing rate of a retinal ganglion cell. Kuffler (1953) would later demonstrate that Hartline’s receptive field had a specific spatial structure known as center surround, and in a series of studies to follow, Hubel and Wiesel (1959, 1961, 1962, 1965) would extend the term rece ...
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Amitosis

Amitosis (a- + mitosis) is absence of mitosis, the usual form of cell division in the cells of eukaryotes. There are several senses in which eukaryotic cells can be amitotic. One refers to capability for non-mitotic division and the other refers to lack of capability for division. In one sense of the word, which is now mostly obsolete, amitosis is cell division in eukaryotic cells that happens without the usual features of mitosis as seen on microscopy, namely, without nuclear envelope breakdown and without formation of mitotic spindle and condensed chromosomes as far as microscopy can detect. However, most examples of cell division formerly thought to belong to this supposedly ""non-mitotic"" class, such as the division of unicellular eukaryotes, are today recognized as belonging to a class of mitosis called closed mitosis. A spectrum of mitotic activity can be categorized as open, semi-closed, and closed mitosis, depending on the fate of the nuclear envelope. An exception is the division of ciliate macronucleus, which is not mitotic, and the reference to this process as amitosis may be the only legitimate use of the ""non-mitotic division"" sense of the term today. In animals and plants which normally have open mitosis, the microscopic picture described in the 19th century as amitosis most likely corresponded to apoptosis, a process of programmed cell death associated with fragmentation of the nucleus and cytoplasm. Relatedly, even in the late 19th century cytologists mentioned that in larger life forms, amitosis is a ""forerunner of degeneration"".Another sense of amitotic refers to cells of certain tissues that are usually no longer capable of mitosis once the organism has matured into adulthood. In humans this is true of various muscle and nerve tissue types; if the existing ones are damaged, they cannot be replaced with new ones of equal capability. For example, cardiac muscle destroyed by heart attack and nerves destroyed by piercing trauma usually cannot regenerate. In contrast, skin cells are capable of mitosis throughout adulthood; old skin cells that die and slough off are replaced with new ones. Human liver tissue also has a sort of dormant regenerative ability; it is usually not needed or expressed but can be elicited if needed.
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