MID1-COMPLEMENTING ACTIVITY regulates cell proliferation and development via Ca2+ signaling in Marchantia polymorpha
2024

Calcium Signaling in Marchantia polymorpha

publication Evidence: moderate

Author Information

Author(s): Iwano M, Suetsugu N, Nishihama R, Ishida S, Costa A, Katsuno T, Kimura M, Iida K, Iida H, Nagai T

Primary Institution: KU Leuven, Leuven 3001, Belgium

Hypothesis

How does the mechanosensitive channel MpMCA regulate cell division and development in Marchantia polymorpha?

Conclusion

MpMCA is essential for regulating calcium levels and cell proliferation in both vegetative and reproductive tissues of Marchantia polymorpha.

Supporting Evidence

  • MpMCA was found to be localized in areas of high cell proliferation.
  • Calcium signals were significantly reduced in Mpmca mutants compared to wild types.
  • Complementation with MpMCA restored calcium signaling in mutant tissues.
  • Mpmca mutants exhibited developmental defects in both vegetative and reproductive structures.
  • Advanced imaging revealed disrupted cell division in Mpmca during spermatogenesis.

Takeaway

This study shows that a protein called MpMCA helps plants grow by controlling calcium levels, which are important for cell division.

Methodology

The authors used CRISPR/Cas9 to create mutants and employed imaging techniques to study calcium signaling.

Limitations

No data were generated or analyzed in this study.

Digital Object Identifier (DOI)

10.1093/plphys/kiae622

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