Molecular analysis of the AHAS gene of Porphyridium sp. (Rhodophyta) and of a mutant resistant to sulfometuron methyl

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Abstract

Acetohydroxyacid synthase (AHAS) is the target enzyme of the sulfonylurea herbicides, and here we report the sequence of the gene from wild-type and herbicide-resistant Porphyridium sp. (Rhodophyta). The resistant mutant has a single residue substitution at a position known to confer herbicide resistance in E. coli and in plants. The rhodophyte gene is of cyanobacterial origin and distinct from the nuclear-encoded chlorophyte gene, which may be of mitochondrial origin.

Original languageEnglish
Pages (from-to)1233-1236
Number of pages4
JournalJournal of Phycology
Volume35
Issue number6
DOIs
StatePublished - 1 Jan 1999

Keywords

  • Acetohydroxyacid synthase (AHAS)
  • Chloroplast evolution
  • Porphyridium sp.
  • Rhodophyta

ASJC Scopus subject areas

  • Aquatic Science
  • Plant Science

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