Triazine-resistant Nicotiana mutants from photomixotrophic cell cultures

Agnes Csépl'ó, Péter Medgyesy, Éva Hideg, Sándor Demeter, László Márton, Pál Maliga

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40 Citations (Scopus)


Triazine-resistant mutants have been isolated in photomixotrophic cell cultures of Nicotiana plumbaginifolia. Triazine herbicides inhibit photosynthesis and cause extensive photodestruction of chloroplasts (bleaching) in sensitive plants. Selection was based on the greening ability of the resistant cells in the presence of 10-4 M terbutryn, under normal culture conditions, but in a medium containing a low sugar concentration. In the mutant plants, as compared to wild type, two to three orders of magnitude higher concentrations of triazines resulted in inhibition of photosynthetic electron transport and greening. The resistance was inherited maternally.

Original languageEnglish
Pages (from-to)508-510
Number of pages3
JournalMGG Molecular & General Genetics
Issue number3
Publication statusPublished - Aug 1 1985

ASJC Scopus subject areas

  • Genetics

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