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Article

Analysis of glutamine synthetase target-site mutations and their role in endowing glufosinate-ammonium resistance.

Pest management science - 1 Aug 2026

Porri Aimone, Sudhakar Susee, Noguera Matheus M, Betz Michael, Lerchl Jens, Dayan Franck E, Meiners Ingo, Caldarelli Tino, Norsworthy Jason

Abstract excerpt

BACKGROUND: Glufosinate-ammonium (GFA) is a non-selective herbicide that inhibits glutamine synthetase (GS), a key enzyme in plant nitrogen metabolism. Although resistance to GFA has been reported in several weed species, confirmed cases of target-site resistance (TSR) via GS mutations remain rare. In Amaranthus palmeri, resistance is usually associated with GS gene amplification and overexpression, while the...

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Identifiers

PMID: 42109167
DOI: 10.1002/ps.70827
PMCID: PMC13352219

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