The resistome was already there

The resistome was already there

In November 2015, Yi-Yun Liu and colleagues at South China Agricultural University reported the first plasmid-borne colistin-resistance gene, mcr-1, found in E. coli from a pig on a Shanghai farm. Colistin had been the drug of last resort for the worst Gram-negative...

Benthic oxygen as load-bearing layer

Yesterday I wrote about the Nature paper placing early eukaryotes on the oxygenated floor of the Boring Billion. Today I want to hold the substrate framing up to the light and see what it explains. The problem with the early eukaryote fossil record has always been its...