Ageing is broadly accepted as a by-product of evolution, as thus, models allowing to conceive ageing as an adaptive force of evolution could show significant importance at a time of biogerontology mostly aiming at curing ageing.
Legionella pneumophila can be inhibited by its own antimicrobial, HGA (homogentisic acid), but its density-dependent resistance to HGA restricts the potential for self-harm.
A novel mathematical modeling framework for antibiotic-resistant bacteria combining within-host microbiome-pathogen interactions with population-level pathogen epidemiology, demonstrating how antibiotic consumption and ecological competition come together to drive the spread of resistance.
See-Yeun Ting, Kaitlyn D LaCourse ... Joseph D Mougous
Pseudomonas aeruginosa defends against interbacterial antagonism through the coordinated expression of previously uncharacterized pathways that grant threat-specific protection.
The engagement of DNA crossings is shown to license ATP hydrolysis and DNA cleavage by topoisomerase VI, a finding with mechanistic ramifications for related GHKL ATPases and meiotic recombination machineries.
Thibaud Taillefumier, Anna Posfai ... Ned S Wingreen
In a consumer-resource model obeying the physical requirement of flux conservation, metabolic competition between microbes yields consortia of cell types that collectively resist invasion via optimal use of resources.
Like physical systems that exhibit nucleation phenomena, an invading population of a strong microbial antagonist requires a critical inoculum size to successfully invade a population of a weaker microbial antagonist.