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Identification of Post-translational Modifications of Plant Protein Complexes

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Published on: February 22, 2014

Recent insights into plant-virus interactions through proteomic analysis.

Mariasole Di Carli¹, Eugenio Benvenuto, Marcello Donini

¹ENEA, Laboratorio Biotecnologie, UT BIORAD-FARM, Casaccia Research Center, Via Anguillarese 301, I-00123 Rome, Italy.

Journal of Proteome Research

|September 8, 2012

Summary

Plant viruses disrupt host metabolism, repressing photosynthesis while boosting energy production and protein synthesis. Proteomics reveals complex interactions, offering targets for crop protection strategies against viral diseases.

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Area of Science:

Plant pathology
Molecular biology
Proteomics

Background:

Plant viruses cause significant agricultural losses, necessitating a deeper understanding of host interactions.
Functional genomics in plant-virus interactions has historically relied on transcriptomics, with proteomics emerging as a crucial complementary approach.

Purpose of the Study:

To review comparative proteome-based studies on the pathogenesis of major plant viruses.
To elucidate the complex molecular mechanisms underlying plant-virus interactions and identify potential targets for resistance.

Main Methods:

Comparative proteomic analysis of plant-virus interactions using techniques like 2D-PAGE/MS and quantitative proteomics (DIGE, gel-free methods).
Analysis of viral genera including Tobamovirus, Sobemovirus, Cucumovirus, and Potyvirus.

Main Results:

Consistent repression of proteins involved in photosynthesis across various plant-virus interactions.
Upregulation of energy metabolism, protein synthesis, and turnover, indicating a metabolic shift in infected plants.
Modulation of sugar metabolism, cell wall components, reactive oxygen species, and pathogenesis-related proteins.

Conclusions:

Plant-virus interactions induce complex pathophysiological responses, involving intricate interplay between resistance, defense, and susceptibility.
Proteomic approaches provide a global view of host responses, revealing metabolic reprogramming and identifying potential protein targets for improved plant protection strategies.