PLANT S-ADENOSYLMETHIONIN:Mg-PROTOPORPHYRIN-IX-O-METHYLTRANSFERASE, PLANTS WITH VARIABLE CHLOROPHYLL CONTENTS AND/OR HERBICIDE TOLERANCE, AND METHOD FOR THE PRODUCTION THEREOF

摘要

The invention relates to a nucleotide sequence coding for an S-adenosylmethionin:Mg-protoporphyrin-IX-O-methyltransferase and to a method for producing genetically modified plants with a capacity to control in various ways the chlorophyll biosynthesis mode and/or having a variable chlorophyll contents and/or having a variable herbicide tolerance. The invention relates to plants with a variable chlorophyll content and plants exhibiting a variable herbicide tolerance. It also relates to the use of plant PMT-nucleotide sequences for modifying the chlorophyll content of transgenic plants and for detecting effectors, especially inhibitors of plant PMT and herbicidally effective compounds.