Category

Microbial Life

<p>Explore the hidden world of microbes&mdash;from bacteria and archaea to microscopic fungi and protists. Discover how they communicate, cooperate, compete and shape their environments, and what these remarkable organisms can teach us about evolution, the origins of life and life beyond Earth.</p>

Essay · 21 Aug 2026 · 10 min read

Bacteria Talk, Compete and Sacrifice Each Other: Inside My PhD on C. difficile

Bacteria are far more social than they first appear. During my PhD, I explored how Clostridioides difficile forms protective biofilm communities, how chemical signals produced through LuxS may help coordinate this behaviour, and how interactions with other gut bacteria can determine whether it thrives or fails. The results led to an unexpected story involving bacterial communication, competition — and even viruses hidden inside bacterial genomes.