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Phosphate deficiency response and membrane lipid remodeling in plants

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Abstract

Phosphorus (P) deficiency represents one of the significant constraints affecting plants growth and development. Plants have evolved with various adaptations to maximise the uptake of soil P and its distribution in the different organs. Membrane phospholipids store a significant amount of P as the cellular resource that is remobilised under the P deficiency condition. To utilise this P resource, plants initiate membrane lipid remodeling in which metabolic pathways are activated to allow Pi extraction from the phospholipids and reduce the P demand by increasing the synthesis of P-free lipids for replacing the phospholipids in the membrane. Many organisms, including non-photosynthetic/photosynthetic bacterium to plants employ this adaptation to survive under P deficiency conditions. The candidate genes and encoded enzymes seem to be broadly conserved among the different organisms; however, there are variations in a spatiotemporal manner. Here, we discuss the molecular mechanisms of membrane lipid remodelling and its regulation crucial for plants adaption to Pi deficiency.

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Abbreviations

P:

Phosphorus

Pi:

Phosphate

MGDG:

Monogalactosyldiacylglycerol

DGDG:

Digalactosyldiacylglycerol

SQDG:

Sulfoquinovosyldiacylglycerol

PC:

Phosphatidylcholine

PE:

phosphatidylethanolamine

PI:

Phosphatidylinositol

PG:

Phosphatidylglycerol

PS:

Phosphatidylserine

PA:

Phosphatidic acid

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Acknowledgements

Our research is supported by NIPGR core grant. L.V. and R. acknowledge the fellowship from CSIR, Govt. of India. JG acknowledges Swarnajayanti fellowship (SB/SJF/2019-20/07).

Funding

Our research is supported by the NIPGR core grant and Swarnajayanti fellowship to JG (SB/SJF/2019–20/07).

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Contributions

JG conceived the study, L.V. collected the literature and wrote the first draft, LV, R, AKS and JG corrected the draft and finalised the manuscript.

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Correspondence to Jitender Giri.

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Verma, L., Rumi, Sinha, A.K. et al. Phosphate deficiency response and membrane lipid remodeling in plants. Plant Physiol. Rep. 26, 614–625 (2021). https://doi.org/10.1007/s40502-021-00624-x

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  • DOI: https://doi.org/10.1007/s40502-021-00624-x

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