Pericentriolar recycling endosomes

The pericentriolar recycling endosome is a fascinating organelle. It localizes within the centriolar regions of an animal cell where it does its job of degrading and recycling cell debris, including bacterial remnants.  The location of this activity is reminescent of a model for animal mitotic evolution that is shown in this blog. In this model, a primitive cytopharnyx is used to capture bacterial prey by attaching “microtubules” to it that are then pulled back into the cytopharnyx along with the bacteria for consumption by the cell.

On a random note, if eukaryotes evolved from prokaryotes, there should be evidence for microtubules in at least some bacteria, right?  Click here.

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About frankabernathy

I am a retired cell biologist and alumnus of Ohio State University. I became interested in chromosomes as far back as the 1960's when I wrote a term paper on the effects of radiomimetic drugs on chromosomes. I was fascinated at how they could break apart and reform new structures so easily. I became further involved in the early 1970's after taking a cytogenetics course at the University of Arkansas. I took that knowledge with me to Ohio State in 1980 where I eventually worked on my research and completed my Ph.D. dissertation, "Studies on Eukaryotic DNA Superstructure". My studies and later research suggested that the DNA within the eukaryotic chromosome is not the simple, linear molecular thread so widely suggested in all the classic textbooks published today. Instead, it may be the culmination of a geologically rapid set of endosymbiotic events where microorganisms plug into each other to create something greater than themselves. Feel free to contact me at fabernathy@sbcglobal.net.
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