How Does A Minced Up Sponge Reconstruct Itself ?

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Offline neilep

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How Does A Minced Up Sponge Reconstruct Itself ?
« on: 13/11/2012 19:45:54 »
Dearest Spongeologists,

As a sheepy I of course luff sponges . Sponges are my all time favourite squishy things that live in the sea.

Look here's one in all it's glory.

He's called Reginald.


[attachment=17250]
A Sponge Being Very Proud  Just Moment Ago !

 
Sponges are sheeposed to be a very simple form of life...and yet...should I perchance mince one up in a mincer and then place all the sponge cells into a soup they will eventually recontrsuct themselves back into a sponge !!

klevur eh ?

How Does A Sponge Do That ?....Why ?...Do Sponges regularly get minced or is it a self-repair mechanism ?


whajafink


hugs and shmishes


mwah mwah mwah


neil
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Men are the same as women, just inside out !

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Offline RD

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Re: How Does A Minced Up Sponge Reconstruct Itself ?
« Reply #1 on: 14/11/2012 00:58:55 »
... is it a self-repair mechanism ?

sounds more like the equivalent of vegetative propagation in plants.

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Offline Lab Rat

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Re: How Does A Minced Up Sponge Reconstruct Itself ?
« Reply #2 on: 05/03/2013 14:19:52 »
Regeneration- same process as when a salamander grows a new tail or limb.

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Online evan_au

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Re: How Does A Minced Up Sponge Reconstruct Itself ?
« Reply #3 on: 06/03/2013 10:33:41 »
Humans and Salamanders have many very specialised cells such as digestive cells, eye cells and skin cells. It is not easy to transform one specialised cell type to another (unless you use techniques like induced pluripotent stem cells). So salamanders regenerating a lost appendage use a regrowth mechanism where specialised cells adjacent to the wound multiply to recreate the lost appendage, creating cells similar to the cells doing the regrowth. But a toe would not regrow an eye (or vice-versa).

In contrast, sponges have a few slightly-specialised cells that can naturally transform from one cell type to another in a living sponge. A soup of these sponge cells naturally transforms into the mix of cell types that forms a new living sponge.
I imagine that sponges on a coral reef regularly get mashed by the waves, so total self-repair is a good strategy...

For another portrait of Reginald, see:  http://en.wikipedia.org/wiki/Sponge

Starfish seem somewhere in-between; they have specialised cells, but in some species, a lost arm can regrow a digestive system: http://en.wikipedia.org/wiki/Starfish#Regeneration