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June 9, 2023Open Access

Molecular Regulation for Maintenance of Plant Phosphate Homeostasis in Crop Plants as Basis for Precision Genome Engineering

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Authors

SASiti Nor Akmar AbdullahNANorazrin AriffinMHMuhammad Asyraf Md Hatta

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Overview

Review reveals molecular signaling pathways controlling phosphate homeostasis in crop plants, highlighting genome editing targets for improved nutrient efficiency.

Key Points

  • To review the transcriptional and post-translational regulatory networks governing plant phosphate homeostasis and identify targets for precision genome engineering in crops.
  • Synthesized molecular evidence on transcription factor families (MYB, WRKY, bHLH, ZFP) modulating systemic responses to phosphate deficiency.
  • Analyzed nutrient-sensing pathways involving inositol pyrophosphate signaling molecules, SPX domain proteins, and vacuolar phosphate transporters.
  • Evaluated proteomic insights into post-translational modifications and prospective CRISPR-mediated gene-editing strategies.
  • Inositol pyrophosphates bind SPX domain proteins to control the transcriptional activity of MYB-CC phosphate starvation response factors (PHR/PHL), directing key deficiency responses.
  • Vacuolar phosphate transporters utilize SPX domains to sense phosphate levels, activating vacuolar sequestration under replete conditions and mobilizing reserves during deficiency.
  • Identified critical regulatory and transporter gene targets suitable for CRISPR-based modification to enhance crop phosphate uptake, storage, and utilization efficiency.

Cite This Study

Abdullah et al. (2023) studied this question.

synapsesocial.com/papers/6a9502a69183a61d30169baehttps://doi.org/10.20944/preprints202306.0686.v1
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Also Consider

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  1. 1The SPX protein family in plants: from phosphate sensors to multifunctional signaling hubs2026
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