NITRATE-RESPONSIVE PROMOTER

摘要

The present invention provides methods for screening for nitrate-regulated promoter and enhancer elements in plant cells. The present invention also provides expression cassettes that contain nitrate-regulated promoters operably linked to heterologous polynucleotide sequences. The expression cassettes of the present invention are useful for expressing polypeptides, proteins and nucleic acid molecules in plant cells treated with nitrates and nitrites.