Link to our preprint Our research revealed a new type of microbial interaction on Fe0 between methanogens (positively affected) and acetogens (negatively affected). Methanogens that were otherwise ineffective at metabolizing Fe0-electrons, become effective when co-existing with acetogens. We hypothesize methanogens do so by taking advantage of H2-evolving enzymes released by methanogens. We note the necessity to study the effects of associations between physiological groups on Fe0-corrosion, and not solely the effects of cultured isolates.
At the end of November 2019, Mon successfully defended her Ph.D. She did a beautiful job in front of an expert committee including A/Prof. Annette Rowe (Uni. Cincinnati), A/Prof. Diana Sousa (Uni. Wageningen) and chaired by Prof. Don Canfield (SDU). Also, right before the defense, we got the good news that two articles included in Mon’s thesis were accepted for publication. Two days later, Mon took up a new challenge and started a postdoc at the LBNL (Laurence Berkeley National Labs, CA, USA). She’s now up to other exciting adventures in the environmental microbiology of deep biosphere and rhizosphere.