Characterization of a chlorate-hypersensitive, high nitrate reductase Arabidopsis thaliana mutant

X. M. Wang, R. L. Scholl, K. A. Feldmann

Research output: Contribution to journalArticlepeer-review

8 Scopus citations


A population of A. thaliana, produced by self-fertilization of ethylmethane sulfonate treated plants, was exposed to chlorate in the watering solution, and plants showing early susceptibility symptoms were rescued. Among the progeny lines of these plants five were shown to be repeatably chlorate-hypersusceptible. One of these lines (designated C-4) possessed elevated activity of nitrate reductase (NR). The NR activity of mutant C-4 was higher than that of normal plants throughout the life cycle. Nitrite reductase and glutamine synthetase activities of C-4 were normal, as were chlorate uptake rate and tissue nitrate content. The elevated NR activity apparently was responsible for the chlorate hypersusceptibility of C-4. Inheritance studies of NR indicated that the elevated activity of C-4 was probably controlled by a single recessive allele.

Original languageEnglish (US)
Pages (from-to)328-336
Number of pages9
JournalTheoretical and Applied Genetics
Issue number3
StatePublished - Jun 1986


  • Arabidopsis
  • Inheritance
  • Nitrate reductase

ASJC Scopus subject areas

  • Biotechnology
  • Agronomy and Crop Science
  • Genetics


Dive into the research topics of 'Characterization of a chlorate-hypersensitive, high nitrate reductase Arabidopsis thaliana mutant'. Together they form a unique fingerprint.

Cite this