Comparison of metabolomic reconfiguration between Columbia and Landsberg ecotypes subjected to the combination of high salinity and increased irradiance

BMC Plant Biology

Research

Sara I. Zandalinas¹  Clara Segarra-Medina¹  Lidia S. Pascual¹  Aurelio Gómez-Cadenas¹  José L. Rambla¹  Alisdair R. Fernie²  Saleh Alseekh² 

[1] Departamento de Biología, Bioquímica Y Ciencias Naturales, Universitat Jaume I, 12071, Castelló de La Plana, Spain;Max Planck Institute of Molecular Plant Physiology, Am Mühlenberg 1, 14476, Potsdam, Germany;

关键词: Arabidopsis ecotypes;    Abiotic stress combination;    Metabolomics;    Salinity;    Increased irradiance;   

DOI  :  10.1186/s12870-023-04404-7

 received in 2023-01-13, accepted in 2023-08-07,  发布年份 2023

来源: Springer

【 摘 要 】

BackgroundPlants growing in the field are subjected to combinations of abiotic stresses. These conditions pose a devastating threat to crops, decreasing their yield and causing a negative economic impact on agricultural production. Metabolic responses play a key role in plant acclimation to stress and natural variation for these metabolic changes could be key for plant adaptation to fluctuating environmental conditions.ResultsHere we studied the metabolomic response of two Arabidopsis ecotypes (Columbia-0 [Col] and Landsberg erecta-0 [Ler]), widely used as genetic background for Arabidopsis mutant collections, subjected to the combination of high salinity and increased irradiance. Our findings demonstrate that this stress combination results in a specific metabolic response, different than that of the individual stresses. Although both ecotypes displayed reduced growth and quantum yield of photosystem II, as well as increased foliar damage and malondialdehyde accumulation, different mechanisms to tolerate the stress combination were observed. These included a relocation of amino acids and sugars to act as potential osmoprotectants, and the accumulation of different stress-protective compounds such as polyamines or secondary metabolites.ConclusionsOur findings reflect an initial identification of metabolic pathways that differentially change under stress combination that could be considered in studies of stress combination of Arabidopsis mutants that include Col or Ler as genetic backgrounds.

【 授权许可】

CC BY   
© BioMed Central Ltd., part of Springer Nature 2023

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