Paola’s second preprint is about an urban lake methanogenic community corroding iron. Jaramillo, P. A. P., & Rotaru, A. E. (2019). Lifeless Clostridia stimulate methanogenesis on Fe0 in an urban lake corrosive community. bioRxiv, 556704 We observed that dead Clostridium stimulate the growth of methanogens, however not as previously assumed via acetate-transfer. CO2-reductive methanogens were stimulated by the Clostridium [FeFe]-hydrogenases (abundant in their genomes) released after the collapse of the acetogens. Clostridia genome-screening indicated they are the N2-fixers (a process that is very energy intensive), thus their collapse releases readily fixed N2 for the methanogens to use, reducing the energy expenses for the later.
On the 28th of February, Paola submitted her Ph.D. thesis, which includes 6 manuscripts (3 already submitted). Very curious to hear what the committee thinks about Paola’s work. Wishing her best of luck, it’s been fantastic working together. Hope we will continue working together for a bit longer after her defense. Picture link: https://www.swri.org/industries/corrosion-science-process-engineering
Jo, now an Assistant Prof. at Aarhus University visited us on the 10th of January. Jo presented her recent work on corrosion by acetogenic bacteria. It was great to see Jo again and discuss possible future collaborations.
Ever wondered who’s corroding those chemical weapons oozing mustard gas in the Baltic sea, wonder no more: “Baltic #Methanosarcina and #Clostridium compete for electrons from metallic iron”. Check Paola’s #firstpreprint #bioRxiv #MIC #ironcorrosion funded by the Danish Research Council (Sapere Aude program): Palacios et al., 2018 BiRxiv 530386
I have been granted tenure after three years as Assistant Professor at the University of Southern Denmark. Today, 1st of November 2018, is my first day in the capacity of tenured Associate Professor. I am excited about my new role and curious to learn and develop further.