Phytohormone treatment induces generation of cryptic peptides with antimicrobial activity in the Moss Physcomitrella patens.

ABSTRACT:

Background

Cryptic peptides (cryptides) are small bioactive molecules generated via degradation of functionally active proteins. Only a few examples of plant cryptides playing an important role in plant defense have been reported to date, hence our knowledge about cryptic signals hidden in protein structure remains very limited. Moreover, little is known about how stress conditions influence the size of endogenous peptide pools, and which of these peptides themselves have biological functions is currently unclear.

Results

Here, we used mass spectrometry to comprehensively analyze the endogenous peptide pools generated from functionally active proteins inside the cell and in the secretome from the model plant Physcomitrella patens. Overall, we identified approximately 4,000 i

SUBMITTER: Fesenko I 

PROVIDER: S-EPMC6322304 | biostudies-literature | 2019 Jan

REPOSITORIES: biostudies-literature