Diverse Peptide Hormones Affecting Root Growth Identified in the Medicago truncatula Secreted Peptidome.

ABSTRACT: Multigene families encoding diverse secreted peptide hormones play important roles in plant development. A need exists to efficiently elucidate the structures and post-translational-modifications of these difficult-to-isolate peptide hormones in planta so that their biological functions can be determined. A mass spectrometry and bioinformatics approach was developed to comprehensively analyze the secreted peptidome of Medicago hairy root cultures and xylem sap. We identified 759 spectra corresponding to the secreted products of twelve peptide hormones including four CEP (C-TERMINALLY ENCODED PEPTIDE), two CLE (CLV3/ENDOSPERM SURROUNDING REGION RELATED) and six XAP (XYLEM SAP ASSOCIATED PEPTIDE) peptides. The MtCEP1, MtCE

SUBMITTER: Patel N 

PROVIDER: S-EPMC5750845 | biostudies-literature | 2018 Jan

REPOSITORIES: biostudies-literature