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| | Amoeboid - Wikipedia, the free encyclopedia |
 | | Many protists exist as individual amoeboid cells, or take such a form at some point in their life-cycle. | | | The heliozoa include both freshwater and marine forms that use their axopods to capture small prey, and only have simple scales or spines for skeletal elements both groups appear to be polyphyletic. | | | The most famous such organism is Amoeba proteus; the name amoebae is variously used to describe its close relatives, other organisms similar to it, or the amoeboids in general. |
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http://en.wikipedia.org/wiki/Amoeboid
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| | Amoebae |
| | From comparisons of molecular data and from life history data, it is clear that the amoeboid body form is an adaptive form and that the amoebae are polyphyletic. | | | The amoeboid body form is widespread among the protists. | | | The amoeboid body form is one of the most widespread. |
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http://tolweb.org/accessory/Amoebae?acc_id=51
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| | Amoeboid Movement |
| | It is the most basic of all type of movements and perhaps the least well understood - though some amoebae have been studied now for 200 years. | | | While several theories have been trying to explain the amoeboid movement for last several decades there is overall agreement in following points – | | | These basic types are the - amoeboid movement, ciliary movement and muscular movement. |
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http://www.suite101.com/article.cfm/our_beautiful_bodies/90705
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| | Amoeboid motion (from muscle) -- Encyclopædia Britannica |
| | Many pseudopodia may be formed at the same time, and their actions do not seem to be coordinated. | | | More from Britannica on "Amoeboid motion (from muscle)"... | | | Amoeboid movement occurs as an extension of the cytoplasm, called a pseudopod (“false foot”), flows outward, deforms the cell boundary, and is followed by the rest of the cell. |
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http://www.britannica.com/eb/article-58932
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| | Transient expression of transferrin receptors and localisation of iron in amoeboid microglia in postnatal rats. |
| | Transferrin receptors were vigorously expressed in amoeboid microglia in rats ranging from 1 to 10 d of age but were undetectable in older rats. | | | There has been much speculation on the functional significance of transferrin receptors on amoeboid microglia in postnatal rats. | | | It is suggested that the receptors facilitate the acquisition of iron necessitated for various functions of amoeboid microglia in the developing brain. |
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http://www.arclab.org/medlineupdates/abstract_7649811.html
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| | Dr. Thomas M. Roberts - FSU Biological Science Faculty Member |
| | Thus, nematode sperm have become a valuable complement to more conventional systems for dissecting the molecular interactions responsible for amoeboid movement. | | | Amoeboid cell motility plays a vital role in physiological and pathological processes ranging from embryonic development and immunological defense to tumor metastasis. | | | Localized depolymerization of the major sperm protein cytoskeleton correlates with forward movement of the cell body in the amoeboid movement of nematode sperm. |
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http://www.bio.fsu.edu/faculty-robertst.php
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| | A Habit of Lies: Chapter 7 - The Wave Model for Capping and Cell Motility |
| | Although this book arises from consideration of particle movement on cell surfaces, this system is the only situation known to the author where such movement is actually a biological function. | | | "A Habit of Lies" is concerned with amoeboid cells, which have no cilia, but like ciliated protozoa are eukaryotic. | | | While there is evidence to support the existence of waves on cells, their study is not an active field, probably because observations on amoeboid cells seem difficult to make. |
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http://freespace.virgin.net/john.hewitt1/pg_ch07.htm
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| | A Habit of Lies: Chapter 3 - Observations on Cells to be Explained |
| | Their shapes changes from moment to moment, if they meet an obstacle they accommodate their shape to it. | | | Other human cell types are similar, even if not amoeboid, for example, nerve cells have amoeboid regions on them. | | | Many of the cells in multicellular organisms, including many important human cell types, are amoeboid in form, white blood cells for example. |
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http://freespace.virgin.net/john.hewitt1/pg_ch03.htm
(1954 words)
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| | Aquarium.Net June 1997 Sponges, out from under the counter...Ronald L. Shimek |
| | For those who either have blessedly forgotten any basic biology courses they have taken or who have never taken any, | | | Many other cell types have been named in sponges (Kozloff, 1990; Ruppert and Barnes, 1994), however, these are just amoeboid cells given different names due to their position and function. | | | At some other time that same cell could be given a different name, depending on where it was or what it was doing at the time. |
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http://www.reefs.org/library/aquarium_net/0697/0697_1.html
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| | CELL PHYSIOLOGY review |
| | Sort out which affect cilia, which affect amoeboid movement, which muscle contraction. | | | What does this have to do with amoeboid movement? | | | What is the basis for the sliding filament model for muscle contraction and the sliding tubule model for ciliary movement? |
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http://www.csun.edu/~vcbio001/revall580.html
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| | Reasons To Believe: Today's New Reason To Believe Archive - June 2004 |
| | The authors of this research describe the repeated, independent origins of the single-cell amoeboid eukaryotes. | | | The independent, multiple origins of the complex amoeboid form challenge the veracity of the theory of evolution, but find ready explanation if a Creator repeatedly used the same good designs as He brought life into existence. | | | Given its mechanism, evolution should not produce the same outcome repeatedly. |
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http://www.reasons.org/resources/new_reasons/200406.shtml
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| | Amoeboid Cells |
| | Amoeboids move by allowing their body masses to flow into the pseudopods they form. | | | Filose amoebae sometimes produce shells; all are included in the Cercozoa group, with some appearing closer to animals and others closer to fungus in form and behavior. | | | They seem to have developed independently in several types of microscopic organisms; protozoans include some amoeboids, but so do human white blood cells, which wrap pseudopods around invading organisms to engulf and devour them. |
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http://www.iscid.org/encyclopedia/Amoeboid_Cells
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| | Percolozoa - Wikipedia, the free encyclopedia |
| | Usually the amoeboid form is taken when food is plentiful, and the flagellate form is used for rapid locomotion. | | | These are superficially similar to the sporangia of the dictyostelids, but the amoebae only aggregate as individuals or in small groups and do not die to form the stalk. | | | They also include the acrasids, a group of social amoebae that aggregate to form sporangia. |
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http://en.wikipedia.org/wiki/Heterolobosea
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| | Myxomycetes - definition of Myxomycetes in Encyclopedia |
| | Once produced, spores release biflagellate or amoeboid gametes, which fuse pairwise to produce new plasmodia. | | | Under dry conditions they may form resting structures called sclerotia. | | | The cellular slime moulds or dictyostelids take the form of individual amoebae, but under stress aggregate to form a multicellular assembly called a pseudoplasmodium or slug. |
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http://encyclopedia.laborlawtalk.com/Myxomycetes
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| | Freshwater invertebrates |
| | While relatively few organisms use amoeboid motion for locomotion, many organisms rely on the process for specific tissue functions or at specific stages. | | | For example, amoeboid motion is a part of some developmental processes. | | | Part of the currently accepted model for amoeboid motion is the transformation of the gel-like state of the ectoplasm to the more fluid state of the endoplasm during cytoplasmic movements. |
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http://www.ruf.rice.edu/~bioslabs/studies/invertebrates/invertebrates.html#chaos
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| | 9.4.3.7 |
| | Amoeboid movement is associated with two properties -- cytoplasmic streaming, and the extension and retraction of pseudopods -- the motive effects of which could be simulated by medical nanorobots using metamorphic exterior surfaces (Section 5.3). | | | The 200-600 micron carnivorous Amoeba proteus also displays this form of locomotion and was the subject of the earliest studies, hence the name. | | | Embryonic cells in the fetus such as neurons often migrate long distances to their final location by amoeboid movement, after which they become fixed in tissue as sessile cells. |
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http://www.nanomedicine.com/NMI/9.4.3.7.htm
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| | AnimalPhylogeny2 |
| | Locomotion simply seems to be the result of the aggregate amoeboid locomotion of the individual cells. | | | As the mechanisms for pedal locomotory waves were improved by further evolution, one of the improvements may have been the development of contraction capability perpendicular to the longitudinal muscles. | | | This scheme suggests that the gradual evolution of multicellular organisms did not involve a gradual transition from amoeboid locomotion to muscular locomotion. |
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http://www.cco.caltech.edu/~brokawc/Bi11/AnimalPhylogeny2.html
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| | New NOAA Research Sheds Light on Pfiesteria Life Cycle |
| | The new research revealed no amoeboid stages in Pfiesteria's life cycle, bringing into question the nature of the toxicity ascribed to this species. | | | "Even though we found that Pfiesteria does not have toxic amoeboid stages, that does not mean Pfiesteria or other toxic harmful algal bloom species should not be of concern to the health of America's estuaries and coastal regions," said study co-author Dr. R. | | | With the help of this new technology, NOAA researchers were able to show that Pfiesteria has a simple life cycle like many similar marine dinoflagellates. |
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http://www.publicaffairs.noaa.gov/releases2002/june02/noaa02077.html
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| | amoeboid motion and the change from sol form to gel form: |
| | Subject: amoeboid motion and the change from sol form to gel form: | | | amoeboid motion and the change from sol form to gel form: | | | You know how Amoeboid motion requires the conversion of the cytoplasm from the sol form to a gel at the leading edge of the pseudopodium, and from gel to sol at the trailing edge of the cell, well how does this conversion occur and what are the mechansims involved in the conversion? |
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http://www.madsci.org/posts/archives/2003-10/1066673289.Cb.q.html
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| | Applied and Environmental Microbiology |
| | Recent research has demonstrated that the Pfiesteria toxin is a polyketide, closely related to pederin produced by the Pseudomonad symbionts of terrestrial Staphalynid beetles | | | Pfiesteria piscicida has a complex life cycle that includes at least 24 flagellated, amoeboid, and encysted stages or forms. | | | Amoeboid forms of Pfiesteria can then feed upon dead fish
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http://www.auburn.edu/academic/classes/biol/4600/dale/AEM17_files/slide0005.htm
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| | Elastic properties of nematoid arrangements formed by amoeboid cells |
| | A nematoid arrangement is formed if the interaction has an apolar symmetry. | | | In culture migrating and interacting amoeboid cells can form nematoid arrangements in analogy to a nematic liquid crystal phase. | | | Received 3 May 1999 and Received in final form 29 September 1999 |
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http://www.edpsciences.org/articles/epje/abs/2000/02/e9284/e9284.html
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| | Transformation of monocytes into amoeboid microglia in the corpus callosum of postnatal rats, as shown by labelling ... |
| | The phagocytic amoeboid microglia in the corpus callosum were unlabelled at first, although a few cells of a similar nature in the cavum septi pellucidi did show carbon particles in their cytoplasm. | | | The sequential appearance of carbon particles in monocytes, amoeboid microglia, and microglia, suggests that monocytes transform into microglia by way of an amoeboid microglial stage. | | | Two successive intravenous doses of carbon suspension were given at 24 hourly intervals into six days old rats. |
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http://www.arclab.org/medlineupdates/abstract_489472.html
(275 words)
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| | Dr. Stanley Shostak |
| | In a report entitled "A symbiogenetic theory for the origins of cnidocysts in Cnidaria," I argue that the separation of function which accompanies the separation of cnidarian epithelia and amoeboid cells coupled to the reintegration of function following recombination resembles the relationship of a host to a parasite. | | | Epithelial cells alone give rise to epithelia and muscle, while amoeboid cells (also known as interstitial cells) alone give rise to cnidocytes (the sources of cnidocysts), nerve, sensory cells as well as egg and sperm. | | | The answer, presented in detail in "Studies of asexual reproduction in Cnidaria," is that the mechanisms and controls of sexual and asexual reproduction only begin to correspond at terminal differentiation. |
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http://www.pitt.edu/~biohome/Dept/Frame/Faculty/shostak.htm
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| | Amoeboid marine algae |
| | Species of the phylum Chlorarachniophyta and the genus Reticulosphaera (Chrysophyceae/Heterokontophyta or Prymnesiophyta) may be often found. | | | Amoeboid algae are frequent in the upper sublittoral of tropical and subtropical oceans. |
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http://www.uni-giessen.de/~gf1114/rgschnetter/Amoeboid.html
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| | Amoeboid |
| | Has there been any new news on amoebas? | | | Help I really wondering already what an amoeba is made up of! | | | Posted: Thu Sep 22, 2005 11:10 am Post subject: Amoeboid |
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http://www.biology-online.org/biology-forum/about2437.html&highlight=
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| | Amoeboid Movement |
| | You are here: Media Library - Cell functions - Motility - Amoeboid Movement |
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http://www.cells.de/cellseng/1medienarchiv/Zellfunktionen/Motilitaet/Amoeboide_Bewegung/index.jsp
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| | Division Arasiomycota |
| | When bacteria become scarce, however, the amoeboid cells aggregate into a slug like colony, which soon grow into a multicellular reproductive structure. | | | These amoeboid cells reproduce through mitotic divisions as long as there is enough food. | | | Usually, when there are high numbers of bacteria available as food, cellular slime molds are solitary amoeboid cells, engulfing bacteria and moving with |
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http://www.sidwell.edu/us/science/vlb6/labs/Classification_Lab/Eukarya/Protista/Arasiomycota
(189 words)
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| | Government of Saskatchewan - amoeboid folds |
| | Location: Home > Nature and Environment > amoeboid folds | | | You can see additional results or refine this search with the Government of Saskatchewan's full search engine interface. | | | Below are the top 25 results of a search for "amoeboid folds" across all Government of Saskatchewan websites. |
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http://www.gov.sk.ca/topics/keyword/keyword?topic=nature-environment&keyword=3258
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| | Eukaryota (eucaryotes) 30/123 |
| | Phaeodarea (Common type of amoeboid protozoa having a phaeodium) | | | Nucleariidae (Amoeboid protists with fine pseudopodia found in soil and freshwater) | | | Athalamea (Granuloreticulosea that lack a test or shell) |
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http://www.alysion.org/life/Eukaryota.htm
(456 words)
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