Results 251 to 260 of about 1,389,981 (273)
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Weed Science, 2022
AbstractThe full spectrum of herbicide resistance in a weed can vary according to the mechanistic basis and cannot be implied from the selective pressure. Common ragweed (Ambrosia artemisiifolia L.) is an important weed species of horticultural crops that has developed resistance to linuron based on either target site– or non–target site resistance ...
Martin Laforest +5 more
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AbstractThe full spectrum of herbicide resistance in a weed can vary according to the mechanistic basis and cannot be implied from the selective pressure. Common ragweed (Ambrosia artemisiifolia L.) is an important weed species of horticultural crops that has developed resistance to linuron based on either target site– or non–target site resistance ...
Martin Laforest +5 more
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R-factor trimethoprim resistance mechanism: An insusceptible target site
Biochemical and Biophysical Research Communications, 1974Abstract R-factor R388 increases the resistance of Escherichia coli to trimethoprim by 10,000 fold, and mediates the synthesis of an addional dihydrofolate reductase that is less susceptible to trimethoprim by a similar order of magnitude. The dihydrofolate reductase conferred by the R-factor was of a larger molecular weight than the wild-type ...
S G, Amyes, J T, Smith
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Novel target sites in bacteria for overcoming antibiotic resistance
Advanced Drug Delivery Reviews, 2005Resistance to marketed antibiotics continues to increase. During the last 10 years some 200 bacterial genome sequences have become available, giving rise to expectations that genomics would provide a plethora of novel targets and hence a flood of new therapeutic agents.
Michael T, Black, John, Hodgson
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Plant Physiology and Biochemistry
Shortawn foxtail (Alopecurus aequalis Sobol.) is a noxious weed in China. The resistance of A. aequalis developed rapidly due to the long-term application of acetolactate synthase (ALS)-inhibiting herbicides. Here, a suspected mesosulfuron-methyl-resistant A.
You Zhan +5 more
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Shortawn foxtail (Alopecurus aequalis Sobol.) is a noxious weed in China. The resistance of A. aequalis developed rapidly due to the long-term application of acetolactate synthase (ALS)-inhibiting herbicides. Here, a suspected mesosulfuron-methyl-resistant A.
You Zhan +5 more
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Bacterial resistance to antibiotics: Modified target sites
Advanced Drug Delivery Reviews, 2005Alteration in the target sites of antibiotics is a common mechanism of resistance. Examples of clinical strains showing resistance can be found for every class of antibiotic, regardless of the mechanism of action. Target site changes often result from spontaneous mutation of a bacterial gene on the chromosome and selection in the presence of the ...
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Non-target Site Mechanisms of Resistance to Herbicides
Critical Reviews in Plant Sciences, 2017ABSTRACTEvolution of resistance in weeds to herbicides is threatening world agricultural production. Weed management has become more complicated with the development of non-target site resistance (NTSR) to herbicides in weeds. The NTSR mechanisms can be caused by herbicide metabolism, altered patterns of translocation, and herbicide absorption ...
Hossein Ghanizadeh, Kerry C. Harrington
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Target‐site mutation accumulation among ALS inhibitor‐resistant Palmer amaranth
Pest Management Science, 2018AbstractBACKGROUNDPalmer amaranth (Amaranthus palmeri S. Wats) is one of the most common and troublesome weeds in the USA. Palmer amaranth resistance to acetolactate synthase (ALS) inhibitors is widespread in the USA, as in Arkansas. The cross‐resistance patterns and mechanism of resistance are not known.
Shilpa Singh +5 more
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Altered target sites as a mechanism of herbicide resistance
Crop Protection, 2000Abstract Over 200 distinct herbicide resistant weed biotypes have evolved worldwide. In most of these, resistance is conferred by an altered target site, i.e. a modified target protein with reduced affinity for the herbicide(s) in question. This has been documented for herbicides that target most major known sites of action, including those that ...
Malcolm D. Devine, Amit Shukla
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Johnsongrass (Sorghum Halepense) Pollen Expresses Accase Target-site Resistance
Weed Technology, 2007Three studies were conducted to develop pollen tests for the screening of acetyl coenzyme-A carboxylase (ACCase) target-site resistance in a biotype of johnsongrass. The assays were based on germination of johnsongrass pollen in media supplemented with clethodim.
Ian C. Burke +4 more
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Weed Biology and Management, 2014
Sagittaria trifolia L. is one of the most serious weeds in paddy fields in Japan. Since the late 1990s, severe infestations of S. trifolia have occurred following applications of sulfonylurea herbicides in Akita prefecture. In this study, two accessions of S.
Satoshi Iwakami +4 more
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Sagittaria trifolia L. is one of the most serious weeds in paddy fields in Japan. Since the late 1990s, severe infestations of S. trifolia have occurred following applications of sulfonylurea herbicides in Akita prefecture. In this study, two accessions of S.
Satoshi Iwakami +4 more
openaire +1 more source