Unique and Shared Proteome Responses of Rice Plants (Oryza sativa) to Individual Abiotic Stresses

Abstract

Food safety of staple crops such as rice is of global concern and is at the top of the policy agenda worldwide. Abiotic stresses are one of the main limitations to optimizing yields for sustainability, food security and food safety. We analyzed proteome changes in Oryza sativa cv. Nipponbare in response to five adverse abiotic treatments, including three levels of drought (mild, moderate, and severe), soil salinization, and non-optimal temperatures. All treatments had modest, negative effects on plant growth, enabling us to identify proteins that were common to all stresses, or unique to one. More than 75% of the total of differentially abundant proteins in response to abiotic stresses were specific to individual stresses, while fewer than 5% of stress-induced proteins were shared across all abiotic constraints. Stress-specific and non-specific stress-responsive proteins identified were categorized in terms of core biological processes, molecular functions, and cellular localization.

Proteomics analysis of wild and cultivated tomato species challenged with Alternaria solani unveiled differential tolerance mechanisms

“…This suggests a correlation between the metabolite diversity and composition of leaf tissues and the plant's interaction with the pathogen, as well as the progression of the disease. Plants respond to stressful pathogenic interactions by generating a range of 'shared' and 'unique' intrinsic responses against the stressors (Habibpourmehraban et al, 2022).…”

“…Up-regulated proteins belonging to chaperones were more abundant in wild tomato (11) than in susceptible plants (4). Down regulated proteins in CTr vs CNTr group majorly belonged to catalytic' (73) followed by 'binding' (15) and 'transporter activity (12) in 'molecular function' category' (Fig. 10d).…”

Plant dehydrins and dehydrin-like proteins: characterization and participation in abiotic stress response

“…In maize ( Z. mays ) and juvenile barley ( H. vulgare ) seedlings, the level of transcripts for various DHNs (e.g., DHN1 or COR410) was significantly elevated under water deficiency ( Wehner et al., 2016 ; Zhang et al., 2020 ). The abundance of O. sativa DHN1 protein decreased in moderate and severe drought ( Habibpourmehraban et al., 2022 ). Furthermore, numerous DHNs and other LEA proteins increased their abundance in leaves of drought-tolerant and sensitive wheat cultivars under water deficit, which were profiled using a label-free quantitative approach; almost 20 and 14 LEA proteins appeared to be involved in the development of drought tolerance in stress-tolerant and sensitive genotypes, respectively ( Li et al., 2018 ).…”

The Glycine-Rich RNA-Binding Protein Is a Vital Post-Transcriptional Regulator in Crops

“…In the case of rice, glycine-rich RNA-binding proteins have been identified as responders to various abiotic stress conditions, including soil salinity, suboptimal temperatures, and varying degrees of drought [69]. Among the six glycine-rich RNA-binding proteins (OsGRP1 to OsGRP6) in rice, exposure to cold stress significantly upregulated the expression of all six genes [12].…”