HERBICIDE RESISTANCE

Screening assays are used to identify mutant homogentisate solanesyl transferase (HST) enzymes which are at least partially resistant to HST-inhibiting herbicides. Nucleic acids encoding the mutant HST enzyme proteins are made available and useful in modifying plants and plant parts so that they can...

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Main Authors LANGFORD Michael Phillip, BLAIN Rachael Elizabeth, DALE Richard Paul, SIMOES Marta Andreia Horta
Format Patent
LanguageEnglish
Spanish
Published 28.05.2024
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Summary:Screening assays are used to identify mutant homogentisate solanesyl transferase (HST) enzymes which are at least partially resistant to HST-inhibiting herbicides. Nucleic acids encoding the mutant HST enzyme proteins are made available and useful in modifying plants and plant parts so that they can be made herbicide resistant. Crop plants which express the mutant HST enzymes can be grown in the field and herbicides used to controlling unwanted other vegetation. The homogentisate solanesyltransferase (HST) enzyme or an active fragment thereof comprises the amino acid sequence motif: F[V/M]TX[F/Y] (SEQ ID NO: 1), wherein X is any amino acid; and wherein one or more of the amino acid residues of the motif are mutated. Se usan ensayos de cribado para identificar enzimas homogentisato-solanesiltransferasas (HST) mutantes que son al menos parcialmente resistentes a herbicidas inhibidores de la HST. Los ácidos nucleicos que codifican las proteínas de enzima HST mutantes se ponen a disposición y son útiles para modificar plantas y partes de plantas de modo que puedan hacerse resistentes a los herbicidas. Las plantas de cultivo que expresan las enzimas HST mutantes pueden cultivarse en el campo y usarse herbicidas para controlar otra vegetación no deseada. La enzima homogentisato-solanesiltransferasa (HST) o un fragmento activo de la misma comprende el motivo de secuencia de aminoácidos F[V/M]TX[F/Y] (SEC ID NO: 1), en donde X es cualquier aminoácido; y en donde uno o más de los restos de aminoácidos del motivo están mutados.
Bibliography:Application Number: MX20240005752