Systemic aspects of host-pathogen interactions in Austrian pine (Pinus nigra): A proteomics approach

The molecular basis of systemic resistance induced in Austrian pine by two canker pathogens was investigated using a proteomics approach. Protein from phloem located 50 cm above the induction site was extracted 26 days after inoculation. Nineteen proteins shown to be up/down-regulated by the pathogens were selected for sequencing. Fifteen proteins were assigned putative functions, revealing that several represented small heat shock proteins. No PR-proteins were identified among the others, which included a proteasome endopeptidase, two oxygen-evolving enhancer proteins, a nucleoside diphosphate kinase, a fructose bisphosphaste aldolase, a ribulose bisphosphate carboxylase, a phosphoserine aminotransferase, and a formate dehydrogenase.