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Amoeboid movement

Definition

noun

A crawling-like type of movement in which the cell forms temporary cytoplasmic projections called pseudopodia (false feet) towards the front of the cell.


Supplement

This type of movement is observed in amoebae (e.g. Amoeba proteus). Their cytoplasm consists of plasmasol (central fluid) surrounded by a more viscous plasmagel. The plasmagel is converted to plasmasol causing the cytoplasm to slide and form a pseudopodium in front to move the cell forward.

Cells that move this way are referred to as amoeboids. Apart from amoeba, other examples are cellular slime moulds (e.g. Dictyostelium discoideum), and human cells, particularly Kupffer cells of liver, monocytes, neutrophils, macrophages, and cancerous cells.


See also: pseudopodia, amoeboid.


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Actin filiments role in ameoboid movement

I know that during amoeboid movement the cytogel of the ectoplasm is converted to cytosol and is forced to the cells perifery at a localized ...

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by Thonzo
Sun Oct 05, 2008 2:01 pm
 
Forum: Microbiology
Topic: Actin filiments role in ameoboid movement
Replies: 6
Views: 5388

Behaviour of Amoebozoans

bionewbe asked: So, if the movements are similar, then what are the functions for the cytoplasmic movement of Physarum? ... that has yet to be sufficently answered by biologist and protozoologist. Amoeboid movement or cytoplasmic streaming has yet to be fully understood, however there ...

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by Ken Ramos
Sat Mar 11, 2006 10:52 am
 
Forum: Microbiology
Topic: Behaviour of Amoebozoans
Replies: 28
Views: 21364

Behaviour of Amoebozoans

... that they stream along as plasmodiums. So I'm just wondering how their movement is similar / different from Amoebas Oh, o.k. I see what you mean. ... amoebae and the plasmodium of myxomycetes. Both move by what is termed amoeboid movement, in which the pseudopodium is extended and the remaining ...

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by bionewbie
Sat Mar 11, 2006 3:20 am
 
Forum: Microbiology
Topic: Behaviour of Amoebozoans
Replies: 28
Views: 21364

Behaviour of Amoebozoans

... that they stream along as plasmodiums. So I'm just wondering how their movement is similar / different from Amoebas Oh, o.k. I see what you mean. ... amoebae and the plasmodium of myxomycetes. Both move by what is termed amoeboid movement, in which the pseudopodium is extended and the remaining ...

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by Ken Ramos
Sat Mar 11, 2006 2:19 am
 
Forum: Microbiology
Topic: Behaviour of Amoebozoans
Replies: 28
Views: 21364

Behaviour of Amoebozoans

bionewbe asks: But what happens with the movement of Amoeba & Physarum? Aren't they both part of the Amoebozoans? Are ... the ability to transition from the amoebo-flagellate form of locomotion to the amoeboid form of locomotion. There are also some other forms of amoebo-flagellates ...

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by Ken Ramos
Fri Mar 10, 2006 11:29 pm
 
Forum: Microbiology
Topic: Behaviour of Amoebozoans
Replies: 28
Views: 21364
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