
	Where results make sense

Topic: Pseudopodia

Related Topics

Central vacuole

Flagella

Protist

In the News (Fri 10 Jul 09)

Northern Trust

Marvin Harrison

Peter Chernin

Gary Locke

Match Play

Penelope Cruz

Mickey Rourke

AR Rahman

Danny Boyle

Hugh Jackman

	Purification of pseudopodia from polarized cells reveals redistribution and activation of Rac through assembly of a ...
		Percent pseudopodia growth is the amount of pseudopodia protein on the undersurface of the membrane induced by cells exposed to an LPA gradient relative to cells in the absence of LPA.
		Whole cells on culture dishes or pseudopodia in the growth and retraction phase were isolated as described in panel a and analyzed for tyrosine phosphorylation by Western blotting with anti-phosphotyrosine antibodies.
		pseudopodia extension in response to an LPA gradient (Fig.
	www.jcb.org /cgi/content/full/156/4/725 (7435 words)

	ameba. The Columbia Encyclopedia, Sixth Edition. 2001-05
		Amebas constantly change the shape of their bodies as a result of the phenomenon known as ameboid movement, involving the formation of temporary extensions (pseudopodia, or false feet) of the body.
		Pseudopodia, used in locomotion and feeding, may be rounded at the tip (lobopodia), pointed (filopodia), branched and fused together (rhizopodia), or somewhat rigid and pointed (axopodia).
		Other ameboid protozoans of the phylum Sarcodina include the marine radiolarians, which form silicate skeletons; their freshwater counterparts, the heliozoans; and the shell-bearing foraminiferans.
	www.bartleby.com /65/am/ameba.html (572 words)

	AMNESTY - LoveToKnow Article on AMNESTY
		In the former wider sense, amoebae are found in sluggish waters, fresh and salt, all over the world; they readily make their appearance in infusions putrefying after infection from aerially carried germs, and the leucocytes or colorless blood corpuscles of Metazoa are essentially amoebae in their structure and behaviour.
		The protoplasm of the individual is divided into a centrally placed body, the nucleus, of relatively stable shape, and the cytoplasm, itself divided into an outer, clearer ectoplasm (" ectosarc ") and an inner, more granular endoplasm (" endosarc "), passing into one another.
		The movements of amoebae are of several kinds, (i) The amoeba may grow out irregularly into blunt lobes, the pseudopodia, some being emitted while others are retracted, and so may advance in any direction by the emission of pseudopodia thitherward, and the enlargement of these by the passage of the organism into them.
	www.1911encyclopedia.org /A/AM/AMNESTY.htm (422 words)

	Amoebae: Protists Which Move and Feed Using Pseudopodia (Site not responding. Last check: 2007-11-05)
		The stiffened pseudopodia of radiolaria and heliozoa tend to extend radially and are called actinopoda.
		Unsupported pseudopodia may be lobose (broad) or filose (thread-like), many may be produced at the same time (polypodial) or cells may migrate with a single advancing pseudopodium (monopodial).
		The forms of pseudopodia: from left: polypodial and lobose, monopodial and lobose, filose, conical, granuloreticulose, tapering actinopods, non-tapering actinopods.
	tolweb.org /accessory/Amoebae?acc_id=51 (776 words)

	skelly2
		The pseudopodia are are filiments that extend out of the test by means of apertures or punctures.
		The pseudopodia of the foram is unique because of it's ability to anastomose, or detach and reattach to the organism.
		Pseudopodia perform most of the necessary functions of the foram, including feeding, movement, test building, attachment, and have a hand in respiration and reproduction.
	www.earth.rochester.edu /ees207/Kelly/SKELLY2.HTM (379 words)

	ERK and RhoA Differentially Regulate Pseudopodia Growth and Retraction during Chemotaxis -- Brahmbhatt and Klemke 278 ...
		B, cells were allowed to extend pseudopodia for 60 min (time 0) as described in A, and then the LPA gradient was removed from the bottom compartment and pseudopodia allowed to retract for the indicated times.
		Pseudopodia protein on the underside of the membrane was determined as described under "Experimental Procedures." D, COS-7 cells were transfected with the empty vector (Mock), the vector encoding HA-tagged kinase dead Raf-1 mutant (HA-Raf-KD), or HA-tagged wild type Raf-1 (HA-Raf-WT).
		Pseudopodia formation was initiated using LPA as a gradient and pseudopodium protein determined as described above.
	www.jbc.org /cgi/content/full/278/15/13016 (7041 words)

	Protista
		Pseudopodia are used for locomotion and other functions in the subphylum sarcodina.
		We don't know for sure how pseudopodia work, but involve cytoplasmic streaming, phase changes (liquid-solid) of the cytoplasm and possibly protein fibers (actin).
		Protozoans use cellular structures known as contractile vacuoles, which are fluid-filled vacuoles that fill and expel fluid and waste to the exterior of the cell.
	www-msc.bhsu.edu /~ssarver/protista.htm (324 words)

	New Page 0
		The animal-like protists (protozoans) are differentiated from one another by their mode of locomotion: by pseudopodia, flagella, cilia, or no mobility.
		The outer surface of the organism is surrounded by a cell membrane.
		Pseudopodia are also used to surround and capture food in a temporary stomach (forming a food vacuole).
	cas.bellarmine.edu /tietjen/AnimalDiversity/Protists.htm (1359 words)

	Protozoa: Amoebae: Naked. An introduction to amoebae with photomicrographs. (Site not responding. Last check: 2007-11-05)
		It has been known for a long time that the general direction of an amoeba's movement is a chemotaxic response to concentration gradients of nutrient (and other) substances in the surrounding water, and that most amoebae maintain a fairly definite shape, with a recognizable front and back end, during all of their activities.
		They move by extending pseudopodia (Latin, false feet) which are able to absorb food particles and which increase and decrease in size by a process called protoplasmic streaming, which term describes it well.
		Here is an amoeba in full flight (so to speak) extending its pseudopodia towards a group of algal cells which could well become its next meal.
	micrographia.com /specbiol/protis/homamoeb/amoe0100.htm (1121 words)

	Olympus Microscopy Resource Center
		Amoebas are primitive organisms characterized by their flowing movements, extending cytoplasm outward to form pseudopodia (false feet); this type of movement is considered to be the most primitive form of animal locomotion.
		In response to chemical stimuli from smaller organisms, pseudopodia are induced to envelop the organism, at the same time forming a vacuole (cavity).
		Digestive enzymes are secreted into the cavity and the nutrients diffuse from the vacuole into the cytoplasm.
	www.olympusmicro.com /moviegallery/pondscum/protozoa/amoeba (156 words)

	Poster Abstracts
		It was demonstrated that the morphology of induced pinocytosis (the number and size of pinocytotic pseudopodia) depends on the kind of inducer.
		Pinocytotic pseudopodia are developed due to the circular localised detachment of the microfilament layer from the plasma membrane with the exception of a central region of fast contact.
		The size of pseudopodia is related to the area of detachment.
	www.elso.org /index.php?id=abstr2002&lid=1057 (379 words)

	Measurement of number and cross-sectional area of basal cell pseudopodia: a new morphometric method -- Okagaki et al. ...
		Measurement of number and cross-sectional area of basal cell pseudopodia: a new morphometric method -- Okagaki et al.
		the pseudopodia to the base area of the basal cell, using the transmission
		pseudopodia per basal cell (N) and the ratio of the areas (F) measured in
	www.jcb.org /cgi/content/abstract/91/3/629 (216 words)

	MSN Encarta - Search View - Amoeba (Site not responding. Last check: 2007-11-05)
		The search seeks the exact word or phrase that you type, so if you don’t find your choice, try searching for a key word in your topic or recheck the spelling of a word or name.
		Amoeba, any of a group of unicellular organisms characterized by their locomotive method of extending cytoplasm outward to form pseudopodia (false feet).
		Chemical stimuli from smaller organisms, the amoeba's food, induce the formation of pseudopodia, pairs of which envelop the organism, at the same time forming a cavity, or vacuole.
	encarta.msn.com /text_761557743__1/Amoeba.html (301 words)

	Pseudopodia (Site not responding. Last check: 2007-11-05)
		Measurement of number and cross-sectional area of basal cell pseudopodia: a new...
		Regulation of lymphocyte pseudopodia formation by triggering the integrin alpha...
		ERK and RhoA Differentially Regulate Pseudopodia Growth and Retraction during Ch...
	www.scienceoxygen.com /biology/88.html (205 words)

	Introduction to the Testaceafilosea (Site not responding. Last check: 2007-11-05)
		There are a number of protists that are amoeboid; that is, they are more or less shapeless and move by means of extensions known as pseudopodia ("false feet").
		A number of amoebas are referred to as testate: they are partially enclosed in a shell, or test, that may be made of organic material, agglutinated particles, calcium carbonate, or silica.
		Although these testate amoebae are non-photosynthetic and lack flagellated stages, their coating of siliceous scales is similar to that seen in some chromists, such as certain chrysophytes; for this reason, we have included the Testaceafilosea in the Chromista.
	www.ucmp.berkeley.edu /chromista/testaceafilosea.html (365 words)

	Lee, Mol Vis 2003; 9:624-634.
		Induction of pseudopodia by blocking ROCK in the presence of FGF-2 stimulation was further determined in a time dependent manner (Figure 3B).
		Organization of pseudopodia was completely blocked by either neutralizing antibody to FGF-2 or LY2940002, suggesting that pseudopodia formation (or blocking of pseudopodia formation) is also a downstream event to PI 3-kinase (Figure 3C).
		The spindle shaped cells with prominent pseudopodia are likely the activated mesenchymal cells that actively participate in wound healing, as observed in an in vivo wound healing model [49].
	www.molvis.org /molvis/v9/a76 (6215 words)

	The Scripps Research Institute - News and Views
		FAK has a role to play in motility and invasion because it is present in the projections that cells form when they are invading new tissue.
		Pseudopodia are foot-like extensions that cells use for probing an area and crawling.
		Another important cancer enzyme that is often overexpressed in cancer cells and is localized to pseudopodia are enzymes known as matrix metalloproteinases (MMPs).
	www.scripps.edu /newsandviews/e_20030127/schlaepfer2.html (644 words)

	pseudopodium -- Encyclopædia Britannica
		also called pseudopod temporary or semipermanent extension of the cytoplasm, used in locomotion and feeding by all sarcodine protozoans (i.e., those with pseudopodia; see sarcodine) and some flagellate protozoans.
		Pseudopodia are formed by some cells of higher animals (e.g., white blood corpuscles) and by amoebas.
		During amoeboid feeding, pseudopodia either flow around and engulf prey or trap...
	www.britannica.com /eb/article-9061695?tocId=9061695&query=null&ct=null (377 words)

	Oysters in the Classroom: Hunting for Hemocytes (Site not responding. Last check: 2007-11-05)
		These hemocytes appear to be filled with small "grains" and have long pseudopodia that extend from the outer surface of the cell.
		The pseudopodia are used for mobility and the capture of foreign bodies and disease causing organisms like dermo, Perkinsus marinus');return false">Perkinsus marinus.
		Focus on the hemocytes and observe their pseudopodia in action (Figure 3).
	www.mdsg.umd.edu /oysters/oysblood.htm (626 words)

	Quantitative Pseudopodia Assay and Pseudopodia Purification Kit (Site not responding. Last check: 2007-11-05)
		The CHEMICON Quantitative Pseudopodia Assay Kit is a novel system designed to specifically isolate and quantitate extending or retracting pseudopodia from the cell body.
		The assay is ideal for screening pharmacological agents that either stimulate or inhibit pseudopodia formation as well as for the identification of novel drug targets that impact cell chemotaxis.
		This Kits provides a quick and efficient system to purify pseudopodia proteins and their responses to various natural or synthetic compounds that specifically impact the microenvironment of the pseudopodial organelle including signaling processes, integrins or other adhesion receptors, and unique gene products.
	www.apoptag.com /Featured/Pseudopodia.asp (454 words)

	Microscope - information about microbes (Site not responding. Last check: 2007-11-05)
		Cells produce delicate pseudopodia with extrusomes, which extend radially from the cell and normally adhere to the substrate.
		Two short curved flagella arise from the dorsal side of the cell and are relatively inactive in trophic cells, and are very hard to see.
		Cells may withdraw pseudopodia, and swim using the flagella.
	microscope.mbl.edu /scripts/microscope.php?func=imgDetail&imageID=506 (192 words)

	Vannella mira - plate (Site not responding. Last check: 2007-11-05)
		During the development of the floating form pseudopodia elongate, but sometimes the development may "freeze" and floating amoeba for a long time has short, curved, relatively thick pseudopodia.
		Floating form with all cytoplasm in the conical basal thickenings of 3-4 pseudopodia (in this case the basement of pseudopodia consists of the granuloplasm).
		Floating form with 7-11 pseudopodia, producing the impression of a cell rotating, with pseudopodia lagging behind.
	amoeba.ifmo.ru /species/vannellidae/vmira.htm (307 words)

	Rhizopod sarcodines
		pseudopodia: reticulopodia, long, thin pseudopodia that fuse into a network; filopodia, like the reticulopodia but nonfusing; and lobopodia, the blunter pseudopodia of the amoebas.
		Pseudopodia, which characterize these amoebas, are extended to encircle food (bacteria or smaller protists), and then close around it to ingest it, forming a food vacuole.
		All reproduce asexually by binary fission and are characterized, as said earlier, by pseudopodia.
	www.sidwell.edu /us/science/vlb6/labs/Classification_Lab/Eukarya/Protista/Rhizopod (495 words)

	Ameba Coloring (Site not responding. Last check: 2007-11-05)
		Protists are classified by how they move, some have cilia or flagella, but the ameba has an unusual way of creeping along by stretching its cytoplasm into fingerlike extensions called pseudopodia.
		(The word "pseudopodia" means "false foot".) When looking at ameba under a microscope, an observer will note that no ameba looks the same as any other, the cell membrane is very flexible and allows for the ameba to change shape.
		The pseudopodia extend out and wrap around a food particle in a process call phagocytosis.
	www.biologycorner.com /worksheets/amebacolor.html (450 words)

	Amoeba Model (Site not responding. Last check: 2007-11-05)
		Amebas use mobile extensions of the cytoplasm called pseudopodia for movement and food capture.
		Protozoans that form pseudopodia have two type of cytoplasm, an outer, more viscous portion called the ectoplasm and an inner, more fluid portion called the endoplasm.
		In addition to their locomotor role, pseudopodia can be used to engulf prey in a process known as phagocytosis.
	bioweb.uwlax.edu /zoolab/Table_of_Contents/Lab-2b/Amoeba_Model/amoeba_model.htm (188 words)

	Postal Microscopical Society (Site not responding. Last check: 2007-11-05)
		Before nuclear division A. proteus withdraws its pseudopodia, assumes a spherical shape covered by numerous very short pseudopodia and ceases active movement.
		The inner ends of these pinocytic channels are difficult to follow into the granuloplasm, but there is no doubt vacuoles containing albumen are pinched off there, and presumably digestion of this almost pure protein takes place.
		Blunt pseudopodia issue from the ovoid aperture of the shell, make attachments and pull the animal along.
	homepage.ntlworld.com /postalmicsoc/amoebalore2.html (2032 words)

	Department of Biological Sciences - University at Albany - State University of New York
		Organelles and surface-attached polystyrene microspheres remained firmly attached to the microtubule cytoskeletons of detergent-extracted pseudopodia.
		Reticulopodia, the diagnostic cytoplasmic appendage of the foraminifera, are complex networks of branched and anastomosed pseudopodia.
		Microtubules represented the majority of the assembled tubulin polymers in the detergent extracted pseudopodia, however these transformed into helical filaments upon exposure to 10 mM Ca2+ or 50 mM Mg2+.
	www.albany.edu /faculty/jefft/research.html (1207 words)

	Chemicon Launches Novel Kits for the Analysis of Cell Pseudopodia (Site not responding. Last check: 2007-11-05)
		The Pseudopodia Purification Kit (ECM660) and the Quantitative Pseudopodia Assay (ECM650) meet the emerging need for understanding the spacio-temporal organization of cell signaling pathways and cytoskeletal changes in response to chemical gradients.
		The kit is ideal for quantification of pseudopodia, gradient sensing, confocal imaging and time-lapse photography of stimulated cells.
		This kit provides the first commercially available method for isolation of both the extending cell pseudopodia and the trailing cell body, thus allowing for differential pseudopodia and trailing cell body protein harvesting and expression analysis.
	www.apoptag.com /company/PR/Pseudopodia.asp (504 words)

	Klemke Laboratory - Research (Site not responding. Last check: 2007-11-05)
		We found that activation of MLCK by ERK is important for pseudopodia extension, whereas RhoA is necessary for pseudopodia retraction.
		In collaboration with colleagues at TSRI we have utilized multidimensional protein identification technology and large-scale proteomics to identify novel proteins localized to the pseudopodia of migrating cells.
		Though little is known about its biological function and regulation, Lasp-1 is an actin-binding scaffolding protein that is overexpressed in 8-12% of breast cancers and is correlated to increased incidences of metastasis.
	www.scripps.edu /imm/klemke/research.html (431 words)

Try your search on: Qwika (all wikis)