A lipid synthase maintains metabolic flux for jasmonate synthesis to regulate root growth and phosphate homeostasis
2024

The role of OsDGD1 in phosphate starvation in rice

publication Evidence: moderate

Author Information

Author(s): Pandey M, Verma L, Kohli PS, Singh B, Kochi A, Giri J

Hypothesis

How lipid remodeling regulates jasmonic acid and root development in rice during phosphate starvation.

Conclusion

The study highlights the critical role of OsDGD1 in maintaining favorable jasmonic acid levels and root growth during phosphate deficiency.

Supporting Evidence

  • OsDGD1 is specifically induced by phosphate deficiency.
  • Knockout mutants showed impaired root and shoot growth associated with weakened phosphate acquisition.
  • The imbalance in lipid composition affected jasmonic acid levels and root growth.
  • Exogenous application of methyl jasmonate inhibited root growth in wild-type plants.

Takeaway

Plants need phosphorus to grow, and this study found that a specific gene helps them manage phosphorus better when it's scarce, which affects their root growth.

Methodology

The authors generated knockout mutants using CRISPR/Cas9 to study the function of the OsDGD1 gene.

Digital Object Identifier (DOI)

10.1093/plphys/kiae453

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