Title:	Molecular interplay between non-host resistance, pathogens and basal immunity as a background for fatal yellowing in oil palm (Elaeis guineensis Jacq.) plants.
Authors:	BITTENCOURT, C. B. SILVA, T. L. C. da RODRIGUES NETO, J. C. LEAO, A. P. RIBEIRO, J. A. de A. MAIA, A. de H. N. SOUSA, C. A. F. de QUIRINO, B. F. SOUZA JÚNIOR, M. T.
Affiliation:	CLEITON BARROSO BITTENCOURT, UNIVERSIDADE FEDERAL DE LAVRAS; THALLITON LUIZ CARVALHO DA SILVA, UNIVERSIDADE FEDERAL DE LAVRAS; JORGE CÂNDIDO RODRIGUES NETO; ANDRE PEREIRA LEAO, CNPAE; JOSE ANTONIO DE AQUINO RIBEIRO, CNPAE; ALINE DE HOLANDA NUNES MAIA, CNPMA; CARLOS ANTONIO FERREIRA DE SOUSA, CPAMN; BETANIA FERRAZ QUIRINO, CNPAE; MANOEL TEIXEIRA SOUZA JÚNIOR, UNIVERSIDADE FEDERAL DE LAVRAS.
Date Issued:	2023
Citation:	International Journal of Molecular Sciences, v. 24, n. 16, article 12918, 2023.
Description:	Abstract: An oil palm (Elaeis guineensis Jacq.) bud rod disorder of unknown etiology, named Fatal Yellowing (FY) disease, is regarded as one of the top constraints with respect to the growth of the palm oil industry in Brazil. FY etiology has been a challenge embraced by several research groups in plant pathology throughout the last 50 years in Brazil, with no success in completing Koch?s postulates. Most recently, the hypothesis of having an abiotic stressor as the initial cause of FY has gained ground, and oxygen deficiency (hypoxia) damaging the root system has become a candidate for stress. Here, a comprehensive, large-scale, single- and multi-omics integration analysis of the metabolome and transcriptome profiles on the leaves of oil palm plants contrasting in terms of FY symptomatology?asymptomatic and symptomatic?and collected in two distinct seasons?dry and rainy?is reported. The changes observed in the physicochemical attributes of the soil and the chemical attributes and metabolome profiles of the leaves did not allow the discrimination of plants which were asymptomatic or symptomatic for this disease, not even in the rainy season, when the soil became waterlogged. However, the multi-omics integration analysis of enzymes and metabolites differentially expressed in asymptomatic and/or symptomatic plants in the rainy season compared to the dry season allowed the identification of the metabolic pathways most affected by the changes in the environment, opening an opportunity for additional characterization of the role of hypoxia in FY symptom intensification. Finally, the initial analysis of a set of 56 proteins/genes differentially expressed in symptomatic plants compared to the asymptomatic ones, independent of the season, has presented pieces of evidence suggesting that breaks in the non-host resistance to non-adapted pathogens and the basal immunity to adapted pathogens, caused by the anaerobic conditions experienced by the plants, might be linked to the onset of this disease. This set of genes might offer the opportunity to develop biomarkers for selecting oil palm plants resistant to this disease and to help pave the way to employing strategies to keep the safety barriers raised and strong.
Thesagro:	Elaeis Guineensis Doença de Planta Biologia Molecular Gene Marcador
NAL Thesaurus:	Palm oils Plant diseases and disorders Genetic markers Hypoxia Transcriptomics Metabolomics spectroscopy
Keywords:	Catalysis Bud rot Fatal yellowing Molecular mechanisms
DOI:	https://doi.org/10.3390/ijms241612918
Type of Material:	Artigo de periódico
Access:	openAccess
Appears in Collections:	Artigo em periódico indexado (CNPAE)