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6 de feb. de 2020 · A major unresolved question is how bacteria living in complex communities respond to environmental changes. In communities, biotic interactions may either facilitate or constrain evolution ...
20 de nov. de 2019 · This bacteria–host evolutionary arms race exemplifies the Red Queen hypothesis, as survival and persistence of both depends on their innate ability to constantly overcome each other’s attacks ...
21 de oct. de 2021 · Bacteria can express genes obtained from other species to allow adaptation to different environmental conditions, for instance, imparting novel metabolic capacities (Levin & Cornejo, 2009). For example, changes of metabolic networks in E. coli are mostly derived from apparent horizontal gene transfer in the past 100 million years.
9 de sept. de 2021 · Furthermore, invasive infections are often caused by bacteria that colonize a different body site, such as the skin , nasopharynx , or gastrointestinal tract . Due to the process of niche adaptation, these bacteria are often well adapted to reside at anatomical sites of colonization, rather than sites of infection.
Bacterial adaptation Bacteria have been designed to be adaptable. Their surrounding layers and the genetic information for these and other structures associated with a bacterium are capable of alteration. Some alterations are reversible, disappearing when the particular pressure is lifted. Other alterations are maintained and can even be passed on to succeeding generations of bacteria.
4 de jul. de 2018 · Some bacteria can transfer to new host species, and this poses a risk to human health. Indeed, an estimated 60% of all human pathogens have originated from other animal species. Similarly, human ...
24 de nov. de 2022 · In nature, bacteria constantly navigate dynamic environments. To cope with fluctuations, bacteria have evolved different strategies. Some bacterial populations adapt by sensing the environment as a collective through the secretion of autoinducers that accumulate extracellularly and average out the noise inherent to individual sensing.
