An alternative resource allocation strategy in the chemolithoautotrophic archaeon Methanococcus maripaludis.

ABSTRACT: Most microorganisms in nature spend the majority of time in a state of slow or zero growth and slow metabolism under limited energy or nutrient flux rather than growing at maximum rates. Yet, most of our knowledge has been derived from studies on fast-growing bacteria. Here, we systematically characterized the physiology of the methanogenic archaeon Methanococcus maripaludis during slow growth. M. maripaludis was grown in continuous culture under energy (formate)-limiting conditions at different dilution rates ranging from 0.09 to 0.002 h-1, the latter corresponding to 1% of its maximum growth rate under laboratory conditions (0.23 h-1). While the specific rate of methanogenesis correlated with growth rate as expected, the fraction of cellular energy used for maintenance increased and the

SUBMITTER: Muller AL 

PROVIDER: S-EPMC8072206 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature