[Collection of Arabidopsis thaliana mutants with altered sensitivity to oxidative stress inductors].
Selective systems for screening Arabidopsis thaliana (L.) Heynh. mutants with altered sensitivity to the oxidative stress (OS) inductors norflurazon (NF), acifluorfen (AF), and plumbagin (PB) were developed and a collection of 28 mutants was obtained. Dwarf and necrotic forms predominated among the NF-tolerant mutants, while pigment mutants and those with changed root morphology prevailed among the AF-tolerant and PB-sensitive mutants, respectively. Genetic and biochemical analysis of certain mutants was performed; quantitative and qualitative changes in the content of superoxide dismutase and peroxidase isoforms have been revealed. These data, complemented by the data on the cross-tolerance (sensitivity) of the mutants to paraquat, indicate a correlation between tolerance to the OS inductors and the functions of antioxidant systems.
Ezhova
T A
TA
Soldatova
O P
OP
Mamanova
L B
LB
Musin
S M
SM
Grimm
B
B
Shestakov
S V
SV
D017360:Arabidopsis / Q000187:drug effects* / Q000201:enzymology / Q000235:genetics*; D004351:Drug Resistance / Q000235:genetics; D006540:Herbicides / Q000494:pharmacology*; D007527:Isoenzymes / Q000032:analysis; D009154:Mutation; D009285:Naphthoquinones / Q000494:pharmacology; D009579:Nitrobenzoates / Q000494:pharmacology; D016877:Oxidants / Q000494:pharmacology; D018384:Oxidative Stress / Q000235:genetics; D009195:Peroxidase / Q000032:analysis; D018515:Plant Leaves / Q000187:drug effects / Q000201:enzymology / Q000235:genetics; D018517:Plant Roots / Q000187:drug effects / Q000201:enzymology / Q000235:genetics; D011724:Pyridazines / Q000494:pharmacology; D013482:Superoxide Dismutase / Q000032:analysis
D006540:Herbicides; D007527:Isoenzymes; D009285:Naphthoquinones; D009579:Nitrobenzoates; D016877:Oxidants; D011724:Pyridazines; D009195:Peroxidase; D013482:Superoxide Dismutase; C008677:norflurazone; C018425:acifluorfen; C014758:plumbagin