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January 27, 2012
Arsenic Bacteria Ride Again. (Or Don't).
You may not have heard much about the arsenic-bacteria controversy recently, but you're about to hear quite a bit more. Rosie Redfield of UBC, one of the fastest and most vocal critics of the original paper, has been trying to reproduce it in her own group. There's a manuscript in preparation, but since she's been blogging on some of the progress, the import is clear: it hasn't been going well for the "bacteria can take up arsenic in their biomolecules" hypothesis. Scrolling back at that link will give you the story.
Here's a summary at Nature News (with a clarification from Redfield on one point). I look forward to seeing how this plays out - but remember, the startling results always have to prove themselves by happening again. Einmal ist keinmal.
Update: there's another story here, too. Redfield has been posting results as they come along, in a very prominent example of "open science". The first question is: will this affect journal publication? That is, will some editors look askance? The second point is to be found in that Nature News article, where Felisa Wolfe-Simon refers to those "website experiments", and how she basically can't discuss them until she sees them in a journal. Note that it's not "the UBC experiments" or "Redfield's experiments" - they're "website experiments", and thus (apparently) have more to prove.
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