Abstract: Compositions and methods comprising polynucleotides and polypeptides having ALS activity and tolerance to at least one ALS inhibitor are provided. In specific embodiments, the sequence has an increased preference for 2-ketobutyrate, when compared to an appropriate control, such as for example, HRA, and/or a preference for 2-ketobutyrate similar to a native ALS. Further provided are nucleic acid constructs, plants, plant cells, explants, seeds and grain having the ALS inhibitor tolerant sequences. Various methods of employing the ALS inhibitor tolerant sequences are provided. Such methods include methods for producing an ALS inhibitor tolerant plant, plant cell, explant or seed and methods of controlling weeds in a field containing a crop employing the plants and/or seeds disclosed herein.

Abstract: Disclosed are compounds of Formula 1, including all stereoisomers, N-oxides, and salts thereof, wherein Y is a 5-membered, fully or partially unsaturated heterocyclic ring containing 2-4 carbon atoms and 2-3 nitrogen atoms as ring members, the ring substituted with Z on a ring member atom connected through an adjacent single ring member atom to the ring member atom attaching the heterocyclic ring to the phenyl ring of Formula 1, and optionally further substituted with up to 2 substituents independently selected from R5 on carbon atom ring members and from R6 on nitrogen atom ring members; Z is an 8-, 9-, 10- or 11-membered fused heterobicyclic ring system containing ring members selected from carbon atoms and 1 to 4 heteroatoms independently selected from up to 2 O, up to 2 S and up to 4 N atoms, wherein up to 3 carbon atom ring members are independently selected from C(?O) and C(?S), and the sulfur atom ring members are independently selected from S(?O)u(?NR7)z, the ring system optionally substituted

Abstract: Disclosed are compounds of Formula 1, including all stereoisomers, N-oxides, and salts thereof, wherein Y is a 5-membered, fully or partially unsaturated heterocyclic ring containing 2-4 carbon atoms and 2-3 nitrogen atoms as ring members, the ring substituted with Z on a ring member atom connected through an adjacent single ring member atom to the ring member atom attaching the heterocyclic ring to the phenyl ring of Formula 1, and optionally further substituted with up to 2 substituents independently selected from R5 on carbon atom ring members and from R6 on nitrogen atom ring members; Z is an 8-, 9-, 10- or 11-membered fused heterobicyclic ring system containing ring members selected from carbon atoms and 1 to 4 heteroatoms independently selected from up to 2O, up to 2S and up to 4 N atoms, wherein up to 3 carbon atom ring members are independently selected from C(?O) and C(?S), and the sulfur atom ring members are independently selected from S(?O)u(?NR7)z, the ring system optionally substituted wi