Hersch Posted October 15, 2008 Posted October 15, 2008 ive done some research into the use of irradiation in decontaminating products of bacteria. Ive found that fruits when treated with UV light have the ability to build up resistance to the bacteria via the hormetic effect. Do you guys think it can work the other way around as well? can bacteria build up mechanisms to become resistant to the effects of UV?
Mr Skeptic Posted October 18, 2008 Posted October 18, 2008 They can, to some extent. But not easily. Radiation has been something they have been exposed to forever, and are still not resistant to.
CharonY Posted October 18, 2008 Posted October 18, 2008 Actually almost all bacteria (or cells in general) have a certain amount of UV resistance, otherwise they would not be able to withstand sun radiation. The degree varies extremely between species though. One of the most radiation resistant ones (to my knowledge) is Deinococcus radiodurans. However, all resistances are dosage dependent.
Mr Skeptic Posted October 18, 2008 Posted October 18, 2008 Yes, I've even heard of a fungus that thrives (not just survives) on radiation in a nuclear reactor.
CharonY Posted October 20, 2008 Posted October 20, 2008 Well, yeah. IIRC they reported an enhanced growth of Cryptococcus species. Though the reason for it is still unclear.
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now