Glifosatoarekiko erresistentzia duten Amaranthus palmeri populazioen fisiologia: glifosatoaren garraioa, metabolizazioa eta oxidazio-estresa

Abstract

Amaranthus S. Watson palmeri, resistant to glyphosate, is known to have invading weed populations. Two experiments have been prepared, one on hydroponics and the other on the incubation of leaf discs. In the first, in reference sensitive populations (NCS) and glyphosate-resistant populations (NCR), the movement and metabolization of glyphosate has been assessed, measuring the content of glyphosate and its degradation metabolite (AMPA) and analysing the activity of the AKR enzyme involved in degradation. In the second experiment, the effect of glyphosate on the oxidation state of two populations of NCS and Aragon (PS, sensitive potential, and PR, resistant potential) has been studied, assessing the contents of reactive oxygen species, lipids peroxidation, and protein carbonization.