Results 21 to 30 of about 8,073,312 (304)

Herbicide cycling has diverse effects on evolution of resistance in Chlamydomonas reinhardtii [PDF]

open access: yes, 2012
Cycling pesticides has been proposed as a means of retarding the evolution of resistance, but its efficacy has rarely been empirically tested. We evolved populations of Chlamydomonas reinhardtii in the presence of three herbicides: atrazine, glyphosate ...
Alekshun   +54 more
core   +1 more source

Effect of N-fertilization, fungicide treatment, seed density and abiotic stress factors on the total ß-glucan content of six-rowed winter barley (Hordeum vulgare L.)

open access: yesJournal of Applied Botany and Food Quality, 2013
In Germany, the first six-rowed waxy winter barley cultivar (cv.) `Waxyma` was registered in 2008. Besides changes in starch composition, waxy barley is rich in ß-glucans offering new applications in the food industry as ß-glucans reduce the blood ...
Gisela Jansen   +3 more
doaj   +1 more source

An RNA modification enzyme directly senses reactive oxygen species for translational regulation in Enterococcus faecalis

open access: yesNature Communications, 2023
Bacteria possess elaborate systems to manage reactive oxygen and nitrogen species (ROS) arising from exposure to the mammalian immune system and environmental stresses.
Wei Lin Lee   +10 more
doaj   +1 more source

Lack of correlation between constitutive and induced resistance to a herbivore in crucifer plants: real or flawed by experimental methods? [PDF]

open access: yes, 2009
The correlation between constitutive and induced resistance to herbivores in plants has long been of interest to evolutionary biologists, and various approaches to determining levels of resistance have been used in this field of research.
Dicke, M.   +4 more
core   +2 more sources

Changes in insulin sensitivity over time and associated factors in HIV-infected adolescents [PDF]

open access: yes, 2018
OBJECTIVE: To compare prevalence of insulin resistance between perinatally HIV-infected (PHIV+) and perinatally HIV-exposed, but uninfected adolescents (PHEU), determine incidence of and contributory factors to new and resolved cases of insulin ...
Dimeglio, Linda A.   +13 more
core   +2 more sources

Understanding cisplatin resistance using cellular models [PDF]

open access: yes, 2007
Many mechanisms of cisplatin resistance have been proposed from studies of cellular models of resistance including changes in cellular drug accumulation, detoxification of the drug, inhibition of apoptosis and repair of the DNA adducts.
Davey, Mary W., Stordal, Britta
core   +2 more sources

The inheritance of resistance to bacterial leaf spot of lettuce caused by Xanthomonas campestris pv. vitians in three lettuce cultivars. [PDF]

open access: yes, 2014
Lettuce yields can be reduced by the disease bacterial leaf spot (BLS) caused by the pathogen Xanthomonas campestris pv. vitians (Xcv) and host resistance is the most feasible method to reduce disease losses. The cultivars La Brillante, Pavane and Little
Antonise, Rudie   +5 more
core   +2 more sources

The integrated concept of disease resistance; a new view including horizontal and vertical resistance in plants [PDF]

open access: yes, 1977
Horizontal, uniform, race-non-specific or stable resistance can be discerned according to Van der Plank, from vertical, differential, race-specific or unstable resistance by a test in which a number of host genotypes (cultivars or clones) are tested ...
Parlevliet, J.E., Zadoks, J.C.
core   +2 more sources

Radiation induced oscillatory Hall effect in high mobility GaAs/AlGaAs devices [PDF]

open access: yes, 2004
We examine the radiation induced modification of the Hall effect in high mobility GaAs/AlGaAs devices that exhibit vanishing resistance under microwave excitation.
A.A. Koulakov   +21 more
core   +2 more sources

Lack of phenotypic and evolutionary cross-resistance against parasitoids and pathogens in Drosophila melanogaster [PDF]

open access: yes, 2012
BackgroundWhen organisms are attacked by multiple natural enemies, the evolution of a resistance mechanism to one natural enemy will be influenced by the degree of cross-resistance to another natural enemy.
A Fytrou   +52 more
core   +7 more sources

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