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Scientists discover animal-like urea cycle in tiny diatoms in the ocean
Date:5/11/2011

gests that diatoms have followed a fundamentally different evolutionary path from plants--the dominant oxygen producers in terrestrial environments, green algae, and other closely related organisms.

Rather, prior to evolutionary acquisition of photosynthetic machinery, the ancestors of diatoms were possibly more closely related to the ancestors of animals than to plants.

This relatedness has resulted in diatoms and animals sharing some similar biochemical pathways such as the urea cycle.

Although it appears that animals and diatoms ultimately use the urea cycle for different purposes, they are evolutionarily linked in a way that animals and plants are not.


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Contact: Cheryl Dybas
cdybas@nsf.gov
703-292-7734
National Science Foundation
Source:Eurekalert  

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Scientists discover animal-like urea cycle in tiny diatoms in the ocean
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