Disrupting hierarchical control of nitrogen fixation enables carbon-dependent regulation of ammonia excretion in soil diazotrophs.

The click here energetic requirements for biological nitrogen fixation necessitate stringent regulation of this process in response to diverse environmental constraints.To ensure that the nitrogen fixation machinery is expressed only under appropriate physiological conditions, the dedicated NifL-NifA regulatory system, prevalent in Proteobacteria,

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Rifaximin-mediated gut microbiota regulation modulates the function of microglia and protects against CUMS-induced depression-like behaviors in adolescent rat

Abstract Background Chronic unpredictable mild stress (CUMS) can not only lead to depression-like behavior but also change the composition of the gut microbiome.Regulating the gut microbiome can have an antidepressant effect, but the mechanism by which it improves depressive symptoms is not clear.Short-chain fatty acids (SCFAs) are small molecular

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