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Showing 1 to 20 of 25 for “"Acetolactate Synthase"”.
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Characterization and Management of Acetolactate Synthase Inhibiting Herbicide Resistant Mouse-Ear Cress (Arabidopsis thaliana) in Winter Wheat
The first case of field evolved acetolactate synthase (ALS) inhibiting herbicide resistance in the model plant, mouse-ear cress, was reported in winter wheat fields in Westmoreland County, Virginia. A putative resistant (R) mouse-ear population was assessed for ALS resistance relative to a putative …
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A Search for Ketol Acid Reductoisomerase and Acetolactate Synthase in the Tissue of Valine-Fed and Valine-Deprived Rats
Made available in DSpace on 2015-05-13T15:26:55Z (GMT). No. of bitstreams: 2 license.txt: 4848 bytes, checksum: 96035ab3f5e1c23cc7138a224ce498bd (MD5) 7624120.PDF: 7227298 bytes, checksum: 57d3ff3325e9b3e10099756accc5288a (MD5) Previous issue date: 1976
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Investigation of the efficacy of identified acetolactate synthase inhibitors, peptidyl cysteine protease inhibitors, thiolactomycins, and thiosemicarbazone compounds against Mycobacterium tuberculosis
… We therefore assessed 121 derivatives from the acetolactate synthase inhibitors, cysteine protease inhibitors, thiosemicarbazones, and thiolactomycins classes of compounds for in vitro efficacy against M. tuberculosis using the resazurin microtitre plate assay afterwhich active compounds were …
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Prohexadione Calcium for Turfgrass Management and Poa annua Control and Molecular Assessment of the Acetolactate Synthase Gene in Poa annua
… characterizing possible resistance to acetolactate synthase (ALS) inhibiting herbicides in annual bluegrass. Several selective herbicides for annual bluegrass control inhibit ALS. Since many weeds have developed resistance to ALS-inhibiting herbicides, the ALS gene in annual bluegrass …
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Characterization of Acetolactate Synthase-Inhibiting Herbicide-Resistant Smooth Pigweed and Corn Weed Management Programs Utilizing Mesotrione in Combinations with Other Herbicides
Repeated use of acetolactate synthase (ALS)-inhibiting herbicides in recent years has resulted in the selection of 89 weed species resistant to these herbicides. One management strategy that can eliminate or slow the development of resistance is applying mixtures of herbicides with different modes …
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Investigations on the Interations of Acetolactate Synthase (ALS)-Inhibiting Herbicides with Growth Regulator and non ALS-Inhibiting Herbicides in Corn (Zea mays) and Selected Weeds
Herbicide combinations are common in corn production in the United States to control broadleaf and grass weed species. Studies were conducted in 1995 and 1996 to: (1) investigate the interactions of 2,4-D and dicamba with halosulfuron-methyl on common lambsquarters and common ragweed control in …
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Synthesis and structure-activity relationship studies of novel anti-infectives for cross screening in tuberculosis and malaria disease models
… diversity sites were designed for synthesis. Acetolactate synthase (also known as acetohydroxyacid synthase) is the enzyme which catalyzes the first step in the biosynthesis of branched chain amino acids, including valine, leucine and isoleucine. It is a target for several classes of …
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Physiological response of sulfonylurea-tolerant soybean to thifensulfuron and imazethapyr
… imazethapyr, an imidazolinone herbicide, inhibit acetolactate synthase (ALS) and used for weed management in soybean production. Tank mixing thifensulfuron with imazethapyr would provide an excellent weed control spectrum for soybean production in Illinois but soybean injury precludes its use. A …
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Poison hemlock (conium Maculatum L.) : biology, implications for pastures and response to herbicides
… spring using amino acid biosynthesis inhibitors, acetolactate synthase (ALS) inhibitors and growth regulator herbicides. Results indicate poison hemlock is a prolific and viable seed producer (between 1,700 to 39,000 seed per plant), and portions of seed were capable of germination upon maturity, …
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Control and Fecundity of Palmer Amaranth (Amaranthus palmeri) and Common Ragweed (Ambrosia artemisiifolia) from Soybean Herbicides Applied at Various Growth and Development Stages
… possess widespread resistance to glyphosate and acetolactate synthase (ALS) inhibiting herbicides resulting in the use of protoporphyrinogen oxidase- (PPO) inhibitors to control these biotypes, although PPO-resistant biotypes are increasing. New soybean herbicide-resistant trait technologies …
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Non-target-site resistance to ALS inhibitors in waterhemp
The acetolactate synthase (ALS) enzyme, or acetohydroxyacid synthase (AHAS) enzyme, is an essential enzyme in branched-chain amino acid biosynthesis, and is the target site of five families of herbicides referred to as ALS inhibitors. Waterhemp (Amaranthus tuberculatus) is considered one of the …
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Weed Control in Cucumber Cucumis sativus, Pumpkin Cucurbita maxima, and Summer Squash Cucurbita pepo with Halosulfuron
… crops. The response of several populations of acetolactate synthase inhibiting (ALS) resistant smooth pigweed to postemergence halosulfuron was also investigated. Halosulfuron activity against ALS-inhibitor resistant smooth pigweed was population dependent. In the greenhouse, postemergence …
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Application of metabolic and biochemical engineering techniques for the enhancement of recombinant protein production in Escherichia coli
… The alsS gene from B. Subtilis encoding the acetolactate synthase enzyme was successfully expressed in E. coli. This enzyme redirects pyruvate away from acetate, towards a non-inhibitory byproduct, acetoin. Acetate excretion can be maintained below 20 mM even in dense cultures employing rich …
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Multiple Herbicide Resistance in Waterhemp
… that survived following treatment of several acetolactate synthase (ALS) inhibitors, and a POST application of lactofen, a protoporphyrinogen oxidase (PPO)-inhibiting herbicide. Greenhouse studies were conducted with this waterhemp biotype, and revealed that plants were also resistant to …
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Factors affecting common lambsquarters' tolerance to imazethapyr
… absorption, translocation, and metabolism. Since acetolactate synthase (ALS, or acetohydroxyacid synthase) (EC 4.1.3.18) is the target enzyme of imazethapyr, the activity of this enzyme was also examined in vivo and in vitro. In vitro studies showed higher ALS activity in extracts from common …
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Characterization of Candidate Compound for Control of Barnyardgrass and Other Troublesome Weeds In Rice
… In a dose-response experiment, susceptible-, acetolactate synthase (ALS)-, propanil-, and quinclorac-resistant barnyardgrass biotypes ED90 values for percent control, plant height, and biomass reductions of all resistant biotypes fell within the anticipated labeled rate of 30 g ha-1. Based on …
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Characterization of a novel five-way-resistant population of waterhemp (Amaranthus tuberculatus)
… herbicides having the following sites of action: acetolactate synthase (ALS), 5-enolpyruvyl-shikimate-3-phosphate (EPSPS), protoporphyrinogen oxidase (PPO), TIR1 auxin receptor, Photosystem II (PSII), and 4-hydroxyphenylpyruvate dioxygenase (HPPD). In 2012, a grower reported the failure to control …
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Characterization of HPPD-inhibitor resistance in waterhemp (Amaranthus tuberculatus)
… that MCR also demonstrates resistance to acetolactate synthase (ALS) inhibitors and photosystem II (PSII) inhibitors, while glyphosate, glufosinate, and protoporphyrinogen oxidase (PPO) inhibitors generally provide the greatest control of this population. Chapter 4 discusses the efficacy …
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Characterization of PPO-inhibitor resistance in waterhemp (Amaranthus tuberculatus) and Palmer amaranth (Amaranthus palmeri)
… weed species in the Midwest. The overuse of acetolactate synthase (ALS), photosystem II, and 5-enolpyruvylshikimate-3-phosphate synthase (EPSPS) inhibitors to control these species led to the evolution of resistance to these herbicides and, thus, protoporphyrinogen oxidase (PPO) inhibitors …
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Preemergence activity of chloroacetamide herbicides on a multiple herbicide-resistant population of waterhemp (amaranthus tuberculatus)
… six different site-of-action groups including: acetolactate synthase (ALS) inhibitors, 5-enolpyruvyl-shikimate-3-phosphate (EPSPS) inhibitors, protoporphyrinogen oxidase (PPO) inhibitors, synthetic auxins, Photosystem II inhibitors (PSII), and 4-hydroxyphenylpyruvate dioxygenase (HPPD) …
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