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Journal Article

Journal article

Origin, mechanism and molecular basis of weed resistance to herbicides. A review

Chodova, D.(Vyzkumny Ustav Rostlinne Vyroby, Prague (Czech Republic). Odbor Rostlinolekarstvi)E-mail:chodova@vurv.cz; Mikulka, J.(Vyzkumny Ustav Rostlinne Vyroby, Prague (Czech Republic). Odbor Rostlinolekarstvi); Kocova, M.(Karlova Univ. (Czech Republic). Prirodovedecka Fakulta); Salava, J.(Vyzkumny Ustav Rostlinne Vyroby, Prague (Czech Republic). Odbor Rostlinolekarstvi);

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This review summarises data from the literature and experimental tests on weed resistance to herbicides. Factors conditioning the origin of resistance are described. The origin of resistant weeds to nine active ingredients with a different mode of action is presented chronologically, and the distribution of resistant weeds around the world outlined. The fundamental modes of action, i.e. reduction of the target site sensitivity, so-called target site resistance, and the mode by which a herbicide is metabolised into inactive products, are listed. The function and genetic modifications of target sites of selected herbicides are described. Czech biotypes of resistant weeds with a mutation at codon 264 of the psbA gene encoding the D1 protein and at codon 574 of the acetolactate synthase gene are presented.

(Revue

Plant Protection Science - UZPI (Czech Republic)

ISSN : 1212-2580