Microcosm experiments deciphered resistome coalescence, risks and source-sink relationship of antibiotic resistance in the soil irrigated with reclaimed water

Journal of Hazardous Materials, Journal Year: 2025, Volume and Issue: 488, P. 137398 - 137398

Published: Jan. 26, 2025

Language: Английский

Mutualism breakdown underpins evolutionary rescue in an obligate cross-feeding bacterial consortium

Nature Communications, Journal Year: 2025, Volume and Issue: 16(1)

Published: April 11, 2025

Abstract Populations facing lethal environmental change can escape extinction through rapid genetic adaptation, a process known as evolutionary rescue. Despite extensive study, rescue is largely unexplored in mutualistic communities, where it likely constrained by the less adaptable partner. Here, we explored empirically likelihood, population dynamics, and mechanisms underpinning an obligate mutualism involving cross-feeding of amino acids between auxotrophic Escherichia coli strains. We found that over 80% populations overcame severe decline when exposed to two distinct types abrupt, stress. Of note, all cases only one strains survived metabolically bypassing auxotrophy. Crucially, consortium exhibited greater sensitivity both stressors than prototrophic control strain, such reversion autonomy was sufficient alleviate stress below levels. This common across other stresses, suggesting may be general feature acid–dependent mutualisms. Our results reveal depend critically on specific physiological details interacting partners, adding rich layers complexity endeavor predicting fate microbial communities intense deterioration.

Language: Английский

Bacterial specialists playing crucial roles in maintaining system stability and governing microbial diversity in bioremediation of oil-polluted sediments under typical deep-sea condition

Bioresource Technology, Journal Year: 2024, Volume and Issue: 413, P. 131498 - 131498

Published: Sept. 18, 2024

Language: Английский