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Sunday, August 30, 2009
Photosynthetic Viruses Keep World's Oxygen Levels Up
From New Scientist:
NEXT time you take in a lungful of oxygen, consider this: it was made possible in part by ocean viruses.
The viruses, which infect single-celled algae called cyanobacteria, are hyperefficient photosynthesisers thanks to a unique set of genes.
Previous work had shown that cyanophage viruses have some photosynthesis genes, apparently used to keep the host cyanobacteria on life support during the infection, which otherwise knocks out the cells' basic functions.
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Baghdad city witnessed a series of bomb blasts causing a death toll of At least 97 and injuring more than 580. Death toll may further rise as still there are people caught within the crumbling masses. It is said that at least six bombs detonated in close proximity to government ministries. Eye witnesses reveal that finance and foreign ministries were the areas mainly targeted. Trucks carrying explosives were the main causative agent of the explosions. One explosion caused the breakage of windows in Iraq’s parliament building in the Green Zone government and diplomatic complex which is under the cover of tight security. A ministry employee girl who was lucky to survive was appalled by the incident. She told press that she saw the corpse of security guards, journalists etc. It is noteworthy that these gruesome chains of blasts have took place few months before the national elections which were slated to take place in January. Baghdad’s security spokesman while addressing the journalists said that another attempt prospective explosion using bomb planted in a car was thwarted by security forces and two Al-Qaeda members were detained
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