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Mechanics and Modeling of Plant Cell Growth
Mechanics and Modeling of Plant Cell Growth

Localization of polysaccharides in isolated and intact cuticles of
Localization of polysaccharides in isolated and intact cuticles of

File
File

... • Structure and Composition – Microtubules are hollow, cylindrical structures. – The microtubule is a set of globular proteins arranged in longitudinal rows called protofilaments. – Microtubules contain 13 protofilaments. – Each protofilament is assembled from dimers of α- and ß-tubulin subunits ass ...
Organelle Assembly in Yeast: Characterization of
Organelle Assembly in Yeast: Characterization of

... assigned to more than 33 complementation groups. The mutants exhibit hybrid protein-independent defects in the sorting of normal vacuolar enzymes including CPY, PrA, and PrB (46). Upon missorting, the precursor forms of these proteins are secreted, presumably because the selective vacuole protein de ...
Mitochondria use actin filaments as rails for fast translocation in
Mitochondria use actin filaments as rails for fast translocation in

... mitochondria moving slowly along microtubules (0.220.05 m m s1), while in our study, mitochondria movement along microtubules was less than our limit of detection (0.3 m m s1). In any case, our in vivo study shows that mitochondria and peroxisomes in Arabidopsis and tobacco move quickly and over ...
Cell death in Leishmania induced by stress and differentiation
Cell death in Leishmania induced by stress and differentiation

... under oxidative stress.26 Additionally, Leishmania amazonensis promastigotes display DNA laddering and chromatin condensation in dense clusters (leading to the breakdown of the nuclear membrane) upon heat-shock, corresponding to classical features of PCD.27 PCD could therefore be present during diff ...
An ADP/ATP-Specific Mitochondrial Carrier Protein
An ADP/ATP-Specific Mitochondrial Carrier Protein

PPT5 - Ycmou
PPT5 - Ycmou

... Germination of Endospores  When conditions are favorable reactivation of endospore starts involves activation, germination, and outgrowth.  Even if an endospore is located in plentiful nutrients, it may fail to germinate unless activation has taken place which may be triggered by heating the endos ...
Protein Analysis - GRiSP Research Solutions
Protein Analysis - GRiSP Research Solutions

... by cellular lysis using a buffer containing detergents to further enrich the protein of interest within the extract. Frequently, cultured cells can be ruptured using a detergent buffer without mechanical methods. The chemical structure of detergents enables them to disrupt membranes and solublize pr ...
The Drosophila centriole – conversion of
The Drosophila centriole – conversion of

... associated with fully elongated daughters that had a smaller diameter (Fig. 2E) likely due to the incomplete C-tubule. Serial sections failed to reveal additional centrioles in this region. Therefore, stem cells were at the beginning of interphase and the centriole pairs examined were inherited from ...
Cellulose orientation determines mechanical anisotropy in onion
Cellulose orientation determines mechanical anisotropy in onion

... immediate high-amplitude initial deformation that was followed by a slow, time-dependent creep (Fig. 2). It is clear that extension is much larger transverse to the cellulose orientation than parallel to it. The rate of creep always decreases with time during 60 min of measurement (data not shown). ...
Oral Cavity
Oral Cavity

... • The muscle fibers of the tensor veli palatini converge as they descend from their origin to form a narrow tendon, which turns medially around the pterygoid hamulus. • The tendon, together with the tendon of the opposite side, expands to form the palatine poneurosis. • When the muscles of the two s ...
Wnt signaling
Wnt signaling

... phosphorylation of three domains of Dishevelled (Dvl), a family of cytosolic signal transducer molecules. • Activation of Dvl ultimately leads to phosphorylation and consequently inhibition of GSK-3 • Inhibition of GSK-3 results in stabilisation and consequent cytosolic accumulation of -catenin, ...
NuMA assembles into an extensive filamentous structure when
NuMA assembles into an extensive filamentous structure when

... participates in the re-assembly of the daughter cell nuclei at the end of mitosis (Compton and Cleveland, 1993), and that it is a component of splicing complexes (Zeng et al., 1994b). In addition to these proposed specific functions for NuMA within the cell nucleus, there have also been proposals th ...
From milliseconds to millions of years: guard cells and
From milliseconds to millions of years: guard cells and

... occurred via a H2O2 secondary messenger. It will be interesting to ascertain the extent to which reactive oxygen species regulate this channel type in Vicia faba and in other plant species. Endomembrane Ca2+ efflux in response to ABA has been studied extensively and several secondary messengers have ...
Larynx - KSUMSC
Larynx - KSUMSC

... • Narrow in the region of the vestibular folds (rima vestibuli). • Narrowest in the region of the vocal folds (rima glottidis). • Divided into three parts: A. Supraglottic part, the part above the vestibular folds, is called the vestibule. B. Ventricle: The part between the vestibular & the vocal fo ...
Binding Sites for Bacterial Flagella at the Surface of the Soil Amoeba
Binding Sites for Bacterial Flagella at the Surface of the Soil Amoeba

... embedding. Coverslipswere removed from the polymerized blocks after these had been softened by plunging into boiling water. Thin sections of chosen groups of cells were cut parallel to the original planar glass substrate on a diamond knife mounted on a Huxley ultramicrotome. Sections collected on un ...
Adaptation of Microorganisms to Cold Temperatures, Weak Acid
Adaptation of Microorganisms to Cold Temperatures, Weak Acid

... or resistance to increased “doses” of particular stresses. Different types of organism possess different inherent resistances and susceptibilities to stress. For instance, Gram-negative bacteria are regarded as being more sensitive to cold shock, chilling, and freezing than Gram-positive bacteria (S ...
ZO-3, a Novel Member of the MAGUK Protein Family Found at the
ZO-3, a Novel Member of the MAGUK Protein Family Found at the

... that ZO-1 binds to occludin (15) and the Ras target AF-6 (47). Additional observations suggest that ZO-1 has the capacity to bind spectrin (15, 20), although localization of this cytoskeletal protein to the tight junction has not been documented. These observations, together with the protein-bindin ...
ANISOTROPIC EXPANSION OF THE PLANT CELL WALL
ANISOTROPIC EXPANSION OF THE PLANT CELL WALL

... wall surrounds neighboring cells in a continuous sheet and stretching it requires a large force. These features preclude plants from ...
Structure and function of tomato disease resistance proteins van
Structure and function of tomato disease resistance proteins van

... Besides the genes that have been isolated and confirmed to function as R gene, numerous R gene homologues have been identified in genome sequencing and annotation programs. In Arabidopsis, TNLs form the largest group of NB-LRR proteins (Meyers et al., 1999), whereas this class is absent in monocots ...
Xylem Structure and Function
Xylem Structure and Function

... parenchyma cells in active xylem tissue retain a functional protoplasm and can store carbohydrates in the form of starch. These cells also play an important role in wound healing by forming callus and can differentiate to regenerate functional xylem cells. Sclerenchyma cells provide mechanical suppor ...
4 - Merck Millipore
4 - Merck Millipore

... Reference Tables for Buffer Formulation ...
POP-1 and Anterior–Posterior Fate Decisions in
POP-1 and Anterior–Posterior Fate Decisions in

... Junkersdorf and Schierenberg, 1992; Mello et al., 1992; Hutter and Schnabel, 1995). For example, the MS descendant born from the division sequence p-a-a-p-p undergoes apoptosis even if every blastomere except for MS is killed (Mello et al., 1992). Thus, in some lineages, cell fates do not appear to ...
Single-channel electrophysiology reveals a distinct and uniform
Single-channel electrophysiology reveals a distinct and uniform

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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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