The IDA-LIKE peptides IDL6 and IDL7 are negative modulators of stress responses in Arabidopsis thaliana

ABSTRACT: We present a functional characterisation of two members of the IDA-LIKE (IDL) peptide family in Arabidopsis thaliana, IDL6 and IDL7. They are processed both C- and N-terminally to produce active peptides. Structure analyses of synthesized IDL6 and IDL7 peptides indicate that they lack secondary structure elements. Localisation studies suggest that the peptides require a signal peptide and C-terminally processing to be correctly transported out of the cell. Treatment of plants with synthetic IDL6 and IDL7 peptides resulted in down-regulation of a broad range of stress-responsive genes, including early stress-responsive transcripts, dominated by a large group of ZINC FINGER PROTEINS (ZFPs), WRKYs and genes encoding calcium-dependent proteins. idl6 and idl7 mutants were more tolerant to salt,

ORGANISM(S): Arabidopsis thaliana

SUBMITTER: Per Winge 

PROVIDER: E-GEOD-77467 | biostudies-arrayexpress |

REPOSITORIES: biostudies-arrayexpress