Peroxisomes

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bionewbie
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Peroxisomes

Post by bionewbie » Tue Oct 03, 2006 7:59 pm

Hi, I just have a really quick question: what is the origin of peroxisomes - is it from the ER or the Golgi? The reason that I am confused is because peroxisomes are very similar to lysosomes, but they are different organelles. I just need some clarification. Thanks
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honeev
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Post by honeev » Wed Oct 04, 2006 12:39 am

Lysosomes are built in the Golgi apparatus.. but peroxisomes, no..

Peroxisomes are self replicating organelles like mitochondria. They replicate by enlarging and then budding to produce new peroxisomes. Peroxisomes may also be formed directly...

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honeev
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Post by honeev » Wed Oct 04, 2006 1:08 am

if you want to know its origin or from where it evolved... the endosymbiotic origin of peroxisomes was previously proposed... juz like mitochondria as they are self-replicating organelles... but recent findings indicate peroxisomes are likely to originate or evolve from ER




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World only have two things: Things you can eat and things you no can eat."

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Condraz23
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Post by Condraz23 » Wed Oct 04, 2006 2:46 pm

Structurally, peroxisomes and lysosomes are quite different since peroxisomes have a crystalline core. I don't think they are endosymbionts.
Last edited by Condraz23 on Mon Jun 04, 2007 12:28 pm, edited 1 time in total.

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MrMistery
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Post by MrMistery » Wed Oct 04, 2006 5:32 pm

still an active research site. complicated mechanism of budding and formation. it's still not known how a peroxisome knows when to split(maybe a recent discovery?!)
one of my main interests, but, unfortunately, not much to read about it..
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honeev
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Post by honeev » Thu Oct 05, 2006 7:14 am

you can check out this article about peroxisome if you like...
http://www.biology-online.org/articles/ ... xisome.htm



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"Why you care about small things? World very simple place...
World only have two things: Things you can eat and things you no can eat."

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