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The dynamic responses of oil palm leaf and root metabolome to phosphorus deficiency


Muhammad, Isiaka Ibrahim and Abdullah, Siti Nor Akmar and Mohd Saud, Halimi and Shaharuddin, Noor Azmi and Mat Isa, Nurulfiza (2021) The dynamic responses of oil palm leaf and root metabolome to phosphorus deficiency. Metabolites, 11 (4). pp. 1-15. ISSN 2218-1989


Inorganic phosphate (Pi) starvation is an important abiotic constraint that affects plant cellular homeostasis, especially in tropical regions with high acidic soil and less solubilizable Pi. In the current work, oil palm seedlings were hydroponically maintained under optimal Pi-supply and no Pi-supply conditions for 14 days, and metabolites were measured by gas chromatography–mass spectrometry (GC–MS), from leaves and roots, after seven and 14 days of treatment, to investigate biochemical pathways in relation to P-utilizing strategy. After seven days of limited Pi, plant leaves showed increased levels of most soluble sugars, and after 14 days, the sugars’ level decrease, except for erythritol, mannose, fructose, and glucose, which showed the highest levels. Rather in root samples, there were different but overlapping alterations, mainly on sugars, amino acids, and organic acids. The leaf sample was shown to have the highest response of sugars with myo-inositol playing a vital role in the redistribution of sugars, while maltose levels increased, indicating active degradation of starch in the root. High levels of glycerol and stearate in both roots and leaves suggest the metabolism of storage lipids for cellular energy during Pi-deficient conditions.

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Official URL or Download Paper: https://www.mdpi.com/2218-1989/11/4/217

Additional Metadata

Item Type: Article
Divisions: Faculty of Agriculture
Faculty of Biotechnology and Biomolecular Sciences
Institute of Plantation Studies
DOI Number: https://doi.org/10.3390/metabo11040217
Publisher: MDPI
Keywords: Inorganic phosphate (Pi); P-deficiency; Biochemical pathways; Organic acid; Lipid
Depositing User: Ms. Che Wa Zakaria
Date Deposited: 28 Dec 2022 08:29
Last Modified: 28 Dec 2022 08:29
Altmetrics: http://www.altmetric.com/details.php?domain=psasir.upm.edu.my&doi=10.3390/metabo11040217
URI: http://psasir.upm.edu.my/id/eprint/95376
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