Isolated DNA molecule encoding protoporphyrinogen oxidase, expression cassette, recombinant vector, host cell, and transgenic plant containing such isolated molecule

摘要

The present invention relates to isolated DNA molecule encoding protoporphyrinogen oxidase(protox) activity of wild type and modified form, which is herbicide tolerant. Transgenic plants having altered protox activity, which confers tolerance to herbicides, are also provided. These plants may be bred or engineered for resistance to protox inhibitors via mutation of the native protox gene to a resistant form or through increased levels of expression of the native protox gene, or they may be transformed with modified eukaryotic or prokaryotic protox coding sequences or wild type prokaryotic protox sequences, which are herbicide tolerant.