Quantitative Proteomic Analysis Provides Novel Insights into Cold Stress Responses in Petunia Seedlings.

ABSTRACT: Low temperature is a major adverse environmental factor that impairs petunia growth and development. To better understand the molecular mechanisms of cold stress adaptation of petunia plants, a quantitative proteomic analysis using iTRAQ technology was performed to detect the effects of cold stress on protein expression profiles in petunia seedlings which had been subjected to 2°C for 5 days. Of the 2430 proteins whose levels were quantitated, a total of 117 proteins were discovered to be differentially expressed under low temperature stress in comparison to unstressed controls. As an initial study, 44 proteins including well known and novel cold-responsive proteins were successfully annotated. By integrating the results of two independent Gene Ontology (GO) enrichment analyses, seven comm

SUBMITTER: Zhang W 

PROVIDER: S-EPMC4766708 | biostudies-literature | 2016

REPOSITORIES: biostudies-literature