| Autor: |
Leão AP; Embrapa Agroenergia, Brasília 70770-901, DF, Brazil., Bittencourt CB; Graduate Program of Plant Biotechnology, Federal University of Lavras, Lavras 37200-000, MG, Brazil., Carvalho da Silva TL; Graduate Program of Plant Biotechnology, Federal University of Lavras, Lavras 37200-000, MG, Brazil., Rodrigues Neto JC; Embrapa Agroenergia, Brasília 70770-901, DF, Brazil., Braga ÍO; Graduate Program of Plant Biotechnology, Federal University of Lavras, Lavras 37200-000, MG, Brazil., Vieira LR; Graduate Program of Plant Biotechnology, Federal University of Lavras, Lavras 37200-000, MG, Brazil., de Aquino Ribeiro JA; Embrapa Agroenergia, Brasília 70770-901, DF, Brazil., Abdelnur PV; Embrapa Agroenergia, Brasília 70770-901, DF, Brazil., de Sousa CAF; Embrapa Meio Norte, Teresina 64006-245, PI, Brazil., Souza Júnior MT; Embrapa Agroenergia, Brasília 70770-901, DF, Brazil.; Graduate Program of Plant Biotechnology, Federal University of Lavras, Lavras 37200-000, MG, Brazil. |
| Abstrakt: |
Drought and salinity are two of the most severe abiotic stresses affecting agriculture worldwide and bear some similarities regarding the responses of plants to them. The first is also known as osmotic stress and shows similarities mainly with the osmotic effect, the first phase of salinity stress. Multi-Omics Integration (MOI) offers a new opportunity for the non-trivial challenge of unraveling the mechanisms behind multigenic traits, such as drought and salinity resistance. The current study carried out a comprehensive, large-scale, single-omics analysis (SOA) and MOI studies on the leaves of young oil palm plants submitted to water deprivation. After performing SOA, 1955 DE enzymes from transcriptomics analysis, 131 DE enzymes from proteomics analysis, and 269 DE metabolites underwent MOI analysis, revealing several pathways affected by this stress, with at least one DE molecule in all three omics platforms used. Moreover, the similarities and dissimilarities in the molecular response of those plants to those two abiotic stresses underwent mapping. Cysteine and methionine metabolism (map00270) was the most affected pathway in all scenarios evaluated. The correlation analysis revealed that 91.55% of those enzymes expressed under both stresses had similar qualitative profiles, corroborating the already known fact that plant responses to drought and salinity show several similarities. At last, the results shed light on some candidate genes for engineering crop species resilient to both abiotic stresses. |
