Abstract: Nucleic acid molecules are described which encode enzymes involved in starch synthasis in plants. These enzymes are wheat isoamylases. The invention furthermore relates to vectors and host cells which contain the above-described nucleic acid molecules, in particular to transformed plant cells and plants which can be regenerated from these and which have an increased or reduced activity of the isoamylases according to the invention.

Abstract: The invention relates to nucleic acid molecules which code for enzymes and which are involved in the synthesis of starch in plants. These enzymes concern isoamylases derived from wheat. The invention also relates to vectors and host cells which contain the described nucleic acid molecules, especially transformed plant cells and plants which can be regenerated therefrom, which exhibit an increased or reduced activity of the inventive isoamylases.

Abstract: An isolated DNA molecule encoding a protein from a plant, which protein has pantothenate synthetase activity; a non-naturally occuring chimeric gene comprising a promoter operably linked to a DNA molecule encoding a protein from a plant having pantothenate synthetase activity; a recombinant vector comprising the chimeric gene wherein the vector is capable of being stably transformed into host cell, a host cell stably transformed with a vector wherein the host cell is capable of expressing the DNA molecule; a method for assaying a protein having pantothenate synthetase activity; the use as herbicides of compounds which inhibit pantothenate synthetase, and a herbicidal composition, comprising one or more active ingredients which show significant pantothenate synthetase inhibition in an assay, are disclosed.

Abstract: An isolated DNA molecule encoding a protein from a plant, which protein has pantothenate synthetase activity; a non-naturally occuring chimeric gene comprising a promoter operably linked to a DNA molecule encoding a protein from a plant having pantothenate synthetase activity; a recombinant vector comprising the chimeric gene wherein the vector is capable of being stably transformed into host cell, a host cell stably transformed with a vector wherein the host cell is capable of expressing the DNA molecule; a method for assaying a protein having pantothenate synthetase activity; the use as herbicides of compounds which inhibit pantothenate synthetase, and a herbicidal composition, comprising one or more active ingredients which show significant pantothenate synthetase inhibition in an assay, are disclosed. The invention relates to plant enzymatic activity, and aspects therefor, involved in the biosynthesis of coenzyme A.

Abstract: The invention relates to nucleic acid molecules which code for enzymes and which are involved in the synthesis of starch in plants. These enzymes concern isoamylases derived from wheat. The invention also relates to vectors and host cells which contain the described nucleic acid molecules, especially transformed plant cells and plants which can be regenerated therefrom, which exhibit an increased or reduced activity of the inventive isoamylases.