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.
|Number of pages||4|
|Journal||Journal of Phycology|
|State||Published - 1 Jan 1999|
- Acetohydroxyacid synthase (AHAS)
- Chloroplast evolution
- Porphyridium sp.
ASJC Scopus subject areas
- Aquatic Science
- Plant Science