Journal
FRONTIERS IN PLANT SCIENCE
Volume 9, Issue -, Pages -Publisher
FRONTIERS MEDIA SA
DOI: 10.3389/fpls.2018.00122
Keywords
stress dynamics; multiple stress treatments; stress-susceptible genotypes; stress-tolerant genotypes; protein isoforms and PTMs; functional studies
Categories
Funding
- Czech Ministry of Agriculture (MZe CZ) [RO017, QJ1310055, QK1710302]
- Czech Ministry of Education, Youth and Sports (MEYS CZ), international COST action FA1208 Pathogen-informed Strategies for Sustainable Crop Resistance [LD14087, LD15167]
- Czech Ministry of Education, Youth and Sports (MEYS CZ), international COST action FA1306 The Quest for Tolerant Varieties - Phenotyping at Plant and Cellular Level [LD14087, LD15167]
- Czech Ministry of Education, Youth and Sports (MEYS CZ) [LO1417]
- National Fund for Research in Luxembourg, project SMARTWALL [C15/SR/10240550]
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Abiotic stresses reveal profound impacts on plant proteomes including alterations in protein relative abundance, cellular localization, post-transcriptional and post-translational modifications (PTMs), protein interactions with other protein partners, and, finally, protein biological functions. The main aim of the present review is to discuss the major factors determining stress-related protein accumulation and their final biological functions. A dynamics of stress response including stress acclimation to altered ambient conditions and recovery after the stress treatment is discussed. The results of proteomic studies aimed at a comparison of stress response in plant genotypes differing in stress adaptability reveal constitutively enhanced levels of several stress-related proteins (protective proteins, chaperones, ROS scavenging-and detoxification-related enzymes) in the tolerant genotypes with respect to the susceptible ones. Tolerant genotypes can efficiently adjust energy metabolism to enhanced needs during stress acclimation. Stress tolerance vs. stress susceptibility are relative terms which can reflect different stress-coping strategies depending on the given stress treatment. The role of differential protein isoforms and PTMs with respect to their biological functions in different physiological constraints (cellular compartments and interacting partners) is discussed. The importance of protein functional studies following high-throughput proteome analyses is presented in a broader context of plant biology. In summary, the manuscript tries to provide an overview of the major factors which have to be considered when interpreting data from proteomic studies on stress-treated plants.
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