Dinor-12-oxo-phytodienoic acid conjugation with amino acids inhibits its phytohormone bioactivity in Marchantia polymorpha
2024

How Amino Acids Affect Plant Hormones in Marchantia

publication 10 minutes Evidence: moderate

Author Information

Author(s): Liang Wenting, Zamarreño Ángel M, Torres-Montilla Salvador, de la Torre Antonio, Totozafy Jean Chrisologue, Kaji Takuya, Ueda Minoru, Corso Massimiliano, García-Mina José M, Solano Roberto, Chini Andrea

Primary Institution: National Centre for Biotechnology (CNB), Consejo Superior de Investigaciones Cientificas (CSIC)

Hypothesis

Does the conjugation of dinor-12-oxo-phytodienoic acid (dn-iso-OPDA) with amino acids reduce its bioactivity in Marchantia polymorpha?

Conclusion

The study found that conjugation of dn-iso-OPDA with amino acids reduces its bioactivity in Marchantia polymorpha.

Supporting Evidence

  • Untargeted metabolomic analyses identified previously unreported dn-OPDA-amino acid conjugates.
  • Mutants lacking the MpGH3A gene showed increased resistance to herbivory.
  • Conjugation of dn-iso-OPDA with amino acids was shown to diminish its bioactivity.

Takeaway

When plants get hurt, they make a special chemical that helps them stay strong. But if they mix that chemical with certain building blocks called amino acids, it doesn't work as well.

Methodology

The researchers used untargeted metabolomic analyses and targeted metabolic profiling to study the effects of wounding on the accumulation of dn-OPDA-amino acid conjugates.

Limitations

The study primarily focused on a single plant species, which may limit the generalizability of the findings to other plants.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1093/plphys/kiae610

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