Results 21 to 30 of about 3,683,995 (257)
eLife, 2013 Fluoroquinolones (FQ) are the recommended antimicrobial treatment for typhoid, a severe systemic infection caused by the bacterium Salmonella enterica serovar Typhi. FQ-resistance mutations in S.
Stephen Baker +8 more
doaj +1 more source
Evidence for an ecological cost of enhanced herbicide metabolism in Lolium rigidum [PDF]
, 2009 1. In some cases, evaluation of resource competitive interactions between herbicide resistant vs. susceptible weed ecotypes provides evidence for the expression of fitness costs associated with evolved herbicide-resistant gene traits. Such fitness costs
Martin M. Vila‐Aiub +5 more
core +1 more source
Prevalence and potential fitness cost of weak phosphine resistance in Tribolium castaneum (Herbst) in eastern Australia [PDF]
, 2015 The prevalence of resistance to phosphine in the rust-red flour beetle, Tribolium castaneum, from eastern Australia was investigated, as well as the potential fitness cost of this type of resistance.
Pavic, Hervoika +3 more
core +2 more sources
One problem, too many solutions: How costly is honest signalling of need?
PLoS ONE, 2019 The "cost of begging" is a prominent prediction of costly signalling theory, suggesting that offspring begging has to be costly in order to be honest. Seminal signalling models predict that there is a unique equilibrium cost function for the offspring ...
Szabolcs Számadó +2 more
doaj +1 more source
Fitness cost of a mcr-1-carrying IncHI2 plasmid.
PLoS ONE, 2018 IncHI2 is a common type of large mcr-1-carrying plasmids that have been found worldwide. Large plasmids could impose metabolic burden for host bacterial strains, we therefore examine the stability and fitness cost of a mcr-1-carrying 265.5-kb IncHI2 ...
Ke Ma, Yu Feng, Zhiyong Zong
doaj +1 more source
Fitness of Herbicide-Resistant Weeds: Current Knowledge and Implications for Management
Plants, 2019 Herbicide resistance is the ultimate evidence of the extraordinary capacity of weeds to evolve under stressful conditions. Despite the extraordinary plant fitness advantage endowed by herbicide resistance mutations in agroecosystems under herbicide ...
Martin M. Vila-Aiub
doaj +1 more source
Physical fitness in preschool children : correlates and intervention effects [PDF]
, 2011 Summary: Children’s physical fitness has decreased over the last decades. At the same time, the prevalence of overweight and obesity in children has increased dramatically. For public health, these trends are alarming because overweight and a decrease in
Bänteli-Niederer, Iris
core +1 more source
Frontiers in Microbiology, 2017 Daptomycin-resistant (DAP-R) Staphylococcus aureus strains are well documented, but have not been reported in China. To elucidate the evolution adaptability and fitness cost of DAP-R S. aureus, three DAP susceptible strains, Pre3 (MRSA, ST239-t037), Pre5
Shuguang Li +5 more
doaj +1 more source
Metabolic Perturbations Caused by the Over-Expression of mcr-1 in Escherichia coli
Frontiers in Microbiology, 2020 Rapid dissemination of the plasmid-born polymyxin resistance gene mcr-1 poses a critical medical challenge. MCR-1 expression is tightly controlled and imposes a fitness cost on the bacteria.
Yi-Yun Liu +15 more
doaj +1 more source
Frontiers in Ecology and Evolution, 2023 The steep rise of infections caused by bacteria that are resistant to antimicrobial agents threatens global health. However, the association between antimicrobial use and the prevalence of resistance is not straightforward.
Amalia Bogri +3 more
doaj +1 more source