Posted by Jim:
The Yellowstone crew is on its way back to AZ now after two intense weeks of sampling and experimentation. Some of the group participated in wide-ranging sampling of hot springs to characterize the “Extended Redfield Ratio” (i.e. C:N:P:Fe:Mo:Ti:Ni:Zn:etc) in diverse microbiota (photoautotrophs, chemotrophs, etc) in chemically diverse environments. Some amazingly weird conditions (at least for the Elser lab) were encountered, such as water at 98 degrees C and <1 pH. And >11 pH. A lot of effort also went into a series of studies to compare N transformations under chemotrophic and phototrophic conditions. I’ve posted some semi-random pictures on the Flickr site (see the link on the right).
Here’s a picture of yours truly carefully sampling a 80 degree C, pH 2.0 hot spring. Note the bison supervising in the background.