There have been some recent advances, notably in soil bacteria. For example: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC127570/ http://www.ncbi.nlm.nih.gov/pmc

There have been some recent advances, notably in soil bacteria. For example: http://www.ncbi.nlm.nih.gov/pmc/articles/PMC127570/ http://www.ncbi.nlm.nih.gov/pmc/articles/PMC127570/ (you can also find some more popular accounts if you look around.) We'll probably be making advances in that area for a long, long time, what with the number and variety of microorganisms out there.