Results 171 to 180 of about 10,554 (221)

Action mechanisms of acetolactate synthase-inhibiting herbicides

Pesticide Biochemistry and Physiology, 2007
Herbicides that target the acetolactate synthase (ALS) are among the most widely used weed control chemicals since their introduction into the marketplace in the early 1980s, including five classes (sulfonylureas, imidazolinones, triazolopyrimidines, pyrimidinylthio (or oxy)-benzoates and sulfonylamino-carbonyltriazolinones).
Qingyan Zhou, Weiping Liu, Yongsong Zhang, Kevin K. Liu   +3 more
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Resistance To Acetolactate Synthase Inhibiting Herbicides

2018
One of the most significant occurrences in herbicide resistance has been the advent of weeds resistant to herbicides that inhibit acetolactate synthase. The topic of herbicide-resistant crops in agriculture has been reviewed by B. J. Mazur and S. C. Falco.
L. L. Saari, J. C. Cotterman, D. C. Thill   +2 more
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Biosynthesis of 2-aceto-2-hydroxy acids: acetolactate synthases and acetohydroxyacid synthases

Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology, 1998
Two groups of enzymes are classified as acetolactate synthase (EC 4. 1.3.18). This review deals chiefly with the FAD-dependent, biosynthetic enzymes which readily catalyze the formation of acetohydroxybutyrate from pyruvate and 2-oxobutyrate, as well as of acetolactate from two molecules of pyruvate (the ALS/AHAS group).
D, Chipman, Z, Barak, J V, Schloss
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Roles of conserved methionine residues in tobacco acetolactate synthase

Biochemical and Biophysical Research Communications, 2003
Acetolactate synthase (ALS) catalyzes the first common step in the biosynthesis of valine, leucine, and isoleucine. ALS is the target of several classes of herbicides, including the sulfonylureas, the imidazolinones, and the triazolopyrimidines. The conserved methionine residues of ALS from plants were identified by multiple sequence alignment using ...
Dung, Tien Le, Moon-Young, Yoon, Young Tae, Kim, Jung-Do, Choi   +3 more
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The acetolactate synthase isoenzymes of Escherichia coli K-12

Molecular and General Genetics MGG, 1977
Strains of Escherichia coli K-12 possessing only one of the three genes coding for acetolactate synthetase activity present either in the wild type or in its ilv0603 derivative were prepared and analyzed. Extracts prepared from these strains show different values of acetolactate synthase specific activity and different sensitivity to valine inhibition.
J, Guardiola, M, De Felice, A, Lamberti, M, Iaccarino   +3 more
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Detailed Structure–Function Correlations of Bacillus subtilis Acetolactate Synthase

ChemBioChem, 2014
AbstractIsobutanol is deemed to be a next‐generation biofuel and a renewable platform chemical. Non‐natural biosynthetic pathways for isobutanol production have been implemented in cell‐based and in vitro systems with Bacillus subtilis acetolactate synthase (AlsS) as key biocatalyst.– AlsS catalyzes the condensation of two pyruvate molecules to ...
Sommer, Bettina, von Moeller, Holger, Haack, Martina, Qoura, Farah, Langner, Clemens, Bourenkov, Gleb, Garbe, Daniel, Loll, Bernhard, Brück, Thomas   +8 more
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Catalytic insights of acetolactate synthases from different bacteria

Archives of Biochemistry and Biophysics
Acetolactate synthase (ALS) is an essential enzyme involved in the biosynthesis of platform chemicals acetoin and 2,3-butanediol in several microorganisms. In this study, we investigated the catalytic differences among three bacterial ALSs involved in the ligation of two molecules of pyruvate or 2-ketobutyrate. Based on the findings, we predicted three
Yan-Fei, Liang, Ze-Xin, Niu, Zi-Wen, Wu, Qing-Yang, Zhang, Xin-Yi, Zhao, Lei-Lei, Chao, Heng, Li, Wen-Yun, Gao   +7 more
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Isolation and purification of acetolactate synthase and acetolactate decarboxylase from the culture ofLactococcus lactis

Applied Biochemistry and Microbiology, 2000
Enzymes catalyzing the synthesis and subsequent transformation of α-acetolactate (AcL)—acetolactate synthase (AcLS) and acetolactate decarboxylase (AcLDC)—were isolated and partially purified from the cells of lactic acid bacteriaLactococcus lactis ssp.lactis biovar.diacetylactis, strain 4.
Yu. S. Kisrieva, V. M. Serebrennikov, N. A. Zagustina, A. M. Bezborodov   +3 more
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Isolation of acetolactate synthase homologs in common sunflower

Weed Science, 2003
A common sunflower population from Howard, SD (HSD) was previously determined to be cross-resistant to imazethapyr and chlorimuron-ethyl, both acetolactate synthase–inhibiting (ALS) herbicides. Experiments were conducted to determine if target-site polymorphisms could act as a mechanism of ALS-inhibitor herbicide resistance in the HSD common sunflower.
Anthony D. White, Michelle A. Graham, Micheal D. K. Owen   +2 more
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Common sunflower resistance to acetolactate synthase–inhibiting herbicides

Weed Science, 2002
Abstract In 1996 a common sunflower population near Howard, SD, was suspected to be cross-resistant to imazethapyr and chlorimuron. Whole-plant acetolactate synthase (ALS) assays confirmed ALS-inhibitor resistance in the Howard biotype. The I50 values (inhibition of 50% of the enzyme activity) indicated that the resistant population required 39 and 9 ...
Anthony D. White, Micheal D. K. Owen, Robert G. Hartzler, John Cardina   +3 more
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