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A Shift toward Smaller Cell Size via Manipulation of Cell Cycle Gene
A Shift toward Smaller Cell Size via Manipulation of Cell Cycle Gene

Plant Oligosaccharides – Outsiders among Elicitors?
Plant Oligosaccharides – Outsiders among Elicitors?

... Such a limited number of studies on the characterization of endogenous oligoglycans is in dissonance with an extremely large variety of these compounds in plants. Multiple chromatographic steps divide oligomeric glycans isolated and concentrated from clarified homogenate of plant tissues into numero ...
Avoidance of Four-way Junctions and
Avoidance of Four-way Junctions and

... Figure 2. Antitubulin labeling of isodiametric, premitotic epidermal cells. (a and b) In the upper cell in a, cortical MTs radiate from several points of intense fluorescence (e.g., black arrows). These can be traced in b (e.g., white arrow) to strands radiating from the nucleus. In the lower cell ...
dextran by suspension-cultured plant cells
dextran by suspension-cultured plant cells

... the 70K FITC-dextran were taken up into the vacuoles of cells but not protoplasts after a l h incubation period. This apparent difference in the ability of cells and protoplasts to internalise FITCdextrans was confirmed using samples of both commercial and purified 20K FITC-dextran as putative endoc ...
On the so-called "Sexual" Method of Spore
On the so-called "Sexual" Method of Spore

... For various reasons, it seemed to me that the process which Schaudinn (1902) and others—including myself (1908)—were driven to regard as a form of conjugation, was, perhaps, capable of being interpreted in some other way. After much idle guessing, I concluded that the only method of throwing light u ...
2015 Biology Pacing Guide
2015 Biology Pacing Guide

Age associated changes in erythrocyte membrane surface charge
Age associated changes in erythrocyte membrane surface charge

... the blood was collected with 3.8% sodium citrate from jugular vein and used for the isolation of erythrocytes and erythrocyte membranes. The general physical health of rats with respect to body weight and movement abilities were monitored throughout the duration of GSP therapy and the changes were f ...
Control of cell cycle transcription during G1 and S phases
Control of cell cycle transcription during G1 and S phases

... Cells commit to enter a new cell cycle during G1 by activating cyclin–CDK-dependent transcription (FIG. 1). G1–S transcriptional activation during late G1 promotes entry into S phase after which expression is turned off. This creates a wave of transcription, which peaks at the G1‑to‑S transition (BO ...
Membrane Lipids in the Function of Serotonin and Adrenergic
Membrane Lipids in the Function of Serotonin and Adrenergic

... largest and most diverse protein family in mammals, involved in signal transduction across membranes [1, 2]. GPCRs are typically seven transmembrane domain proteins and include >800 members which are encoded by ~5% of human genes [3]. Since GPCRs regulate multiple physiological processes, they have ...
9700/02 - StudyGuide.PK
9700/02 - StudyGuide.PK

A Smooth Muscle-specific Monoclonal Antibody Recognizes Smooth
A Smooth Muscle-specific Monoclonal Antibody Recognizes Smooth

... Department of Pathology, SM-30, University of Washington, Seattle, Washington 98195. Dr. Lu's present address is Genetic Systems, Inc., 3005 1st Avenue, Seattle, Washington 98121. ...
Role for Rab7 in maturation of late autophagic vacuoles
Role for Rab7 in maturation of late autophagic vacuoles

... Fig. 2. Rab7 localised in the membranes of autophagic vacuoles. (A) Subcellular fractionation of rat liver. Rab7 was detected by western blotting in both autophagic vacuolar membranes and lysosomal/late endosomal membranes. The characterisation of the fractions has previously been published (Kabeya ...
γ-Tubulin Is Essential for Microtubule Organization and
γ-Tubulin Is Essential for Microtubule Organization and

... with weak similarity to amino acid permease family proteins. RT-PCR analysis showed that At5g05630 RNA is present in tubg2-1 plants at the same level as in wild-type plants in all tissue examined (data not shown). This result, plus the fact that tubg2-1 homozygous plants have no visible phenotype, s ...
PLANT DEFENCES AGAINST PATHOGENS David Guest and John
PLANT DEFENCES AGAINST PATHOGENS David Guest and John

... with a host range restricted to a few plant species or even to cultivars within a species. The key difference between these two types of necrotroph is the specificity of the toxin(s) produced. Necrotrophs with a broad host range secrete toxins that act on metabolic targets common to many plants. In ...
Effects of Single Amino Acid Substitution on the Biophysical
Effects of Single Amino Acid Substitution on the Biophysical

... are considered as more difficult to deal with in clinical practice [1,2]. As a category of promising molecules, antimicrobial peptides (AMPs) have been widely investigated for their outstanding properties, such as rapid action, broad killing spectrum and difficulty in evoking resistance. Naturally e ...
Sample pages 2 PDF
Sample pages 2 PDF

... grows in size and changes shape depending on genetic inheritance and environmental influences such as mechanical loading. Perhaps the most obvious change is the increase in height and weight that is experienced during our adolescent years. These changes are influenced by gravity because the size of ou ...
Middle ear cavity and its contents
Middle ear cavity and its contents

... Thin, semitransparent membrane, nearly oval in form. Separates the tympanic cavity from the bottom of the external acoustic meatus The greater part of its circumference is thickened, and forms a fibrocartilaginous ring which is fixed in the tympanic sulcus at the inner end of the meatus. Anterior an ...
MONODEHYROASCORBATE REDUCTASE4 Is Required for Seed
MONODEHYROASCORBATE REDUCTASE4 Is Required for Seed

... It has been proposed that the APX/MDAR system on the peroxisomal membrane acts as a cordon to intercept H2O2 that is not detoxified by catalase and prevent it from damaging membrane lipids and integral proteins and escaping from the immediate vicinity of the peroxisome surface out into the cytosol ( ...
A Model for Cell Proliferation in a Developing Organism
A Model for Cell Proliferation in a Developing Organism

... Proliferation. A cell is selected uniformly at random. If the cell at site i is selected, it moves to site i + 1 pushing all cells to the right of it up by one. A new unmarked cell now occupies site i. Times between proliferation events are iid exp(λ). Equivalently. You can think of independent homo ...
Diacylglycerol kinases - University of Toronto Mississauga
Diacylglycerol kinases - University of Toronto Mississauga

... tissue-specific alternative splicing of DGKs h, g, y, ~, and D, and probably other isotypes, allows for additional regulation [31,34,35,58,59]. This complexity permits cell- or tissue-specific regulation of each DGK isotype depending on the availability of cofactors and the type of stimulus that the ...
Signaling tip growth in plants Zhenbiao Yang
Signaling tip growth in plants Zhenbiao Yang

... tubes into bulbous tubes (H Li and Z Yang, unpublished data). These results indicate that Rop controls not only the establishment of cell polarity but also tip growth, as does CDC42 in tip-growing fission yeast [8]. The bulbous phenotype is analogous to tip swelling accompanied by non-localized intr ...
Kratsch, H.A . and R.R. Wise.  2000.  The ultrastructure of chilling stress.  Plant, Cell Environment 23: 337-350.
Kratsch, H.A . and R.R. Wise.  2000.  The ultrastructure of chilling stress.  Plant, Cell Environment 23: 337-350.

... Figure 1. Symptoms of chilling injury in chloroplasts. Figure 1a, spinach (Spinacia oleracea, cv. Bloomsdale) chloroplast from a plant grown under permissive conditions (6 weeks of 12 h days at 300 mmol photons m2 s-1 23 °C and 12 h nights 21 °C) showing well developed grana and a single, large star ...
The ultrastructure of chilling stress
The ultrastructure of chilling stress

... Figure 1. Symptoms of chilling injury in chloroplasts. Figure 1a, spinach (Spinacia oleracea, cv. Bloomsdale) chloroplast from a plant grown under permissive conditions (6 weeks of 12 h days at 300 mmol photons m2 s-1 23 °C and 12 h nights 21 °C) showing well developed grana and a single, large star ...
Archaea Topics in Biodiversity
Archaea Topics in Biodiversity

... It was first thought that most archaea were extremophiles, existing at the environmental limits of abiotic factor ranges. Recently, it has been found that there are numerous archaea living in a broad range of habitats and environmental conditions. Some Haloarchaea undergo phenotypic switching and gr ...
The Biochemistry and Structural Biology of Plant
The Biochemistry and Structural Biology of Plant

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Endomembrane system

The endomembrane system is composed of the different membranes that are suspended in the cytoplasm within a eukaryotic cell. These membranes divide the cell into functional and structural compartments, or organelles. In eukaryotes the organelles of the endomembrane system include: the nuclear membrane, the endoplasmic reticulum, the Golgi apparatus, lysosomes, vesicles, endosomes and the cell membrane. The system is defined more accurately as the set of membranes that form a single functional and developmental unit, either being connected directly, or exchanging material through vesicle transport. Importantly, the endomembrane system does not include the membranes of mitochondria or chloroplasts.The nuclear membrane contains two lipid bilayers that encompass the contents of the nucleus. The endoplasmic reticulum (ER) is a synthesis and transport organelle that branches into the cytoplasm in plant and animal cells. The Golgi apparatus is a series of multiple compartments where molecules are packaged for delivery to other cell components or for secretion from the cell. Vacuoles, which are found in both plant and animal cells (though much bigger in plant cells), are responsible for maintaining the shape and structure of the cell as well as storing waste products. A vesicle is a relatively small, membrane-enclosed sac that stores or transports substances. The cell membrane, is a protective barrier that regulates what enters and leaves the cell. There is also an organelle known as the Spitzenkörper that is only found in fungi, and is connected with hyphal tip growth.In prokaryotes endomembranes are rare, although in many photosynthetic bacteria the plasma membrane is highly folded and most of the cell cytoplasm is filled with layers of light-gathering membrane. These light-gathering membranes may even form enclosed structures called chlorosomes in green sulfur bacteria.The organelles of the endomembrane system are related through direct contact or by the transfer of membrane segments as vesicles. Despite these relationships, the various membranes are not identical in structure and function. The thickness, molecular composition, and metabolic behavior of a membrane are not fixed, they may be modified several times during the membrane's life. One unifying characteristic the membranes share is a lipid bilayer, with proteins attached to either side or traversing them.
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