Functional adaptation of a plant receptor-kinase paved the way for the evolution of intracellular root symbioses with bacteria
2008

How a Plant Gene Helped Evolve Root Partnerships with Bacteria

Sample size: 16 publication Evidence: high

Author Information

Author(s): Markmann Katharina, Giczey Gábor, Parniske Martin

Primary Institution: Ludwig Maximilians Universität, Munich, Germany

Hypothesis

Did the SYMRK gene play a role in the evolution of root nodulation in plants?

Conclusion

The study shows that the SYMRK gene is essential for both Actinorhiza and Arbuscular Mycorrhiza symbioses in plants.

Supporting Evidence

  • SYMRK is required for Actinorhiza symbiosis in Datisca glomerata.
  • Different versions of SYMRK exist across plant species, affecting their symbiotic capabilities.
  • Full-length SYMRK versions are necessary for effective root nodulation.

Takeaway

Plants need a special gene called SYMRK to make friends with certain bacteria and fungi that help them get nutrients from the soil.

Methodology

The researchers used RNA interference to reduce SYMRK levels in Datisca glomerata and analyzed the effects on nodulation and AM formation.

Limitations

The study primarily focuses on one plant species and may not fully represent the diversity of SYMRK functions across all plants.

Participant Demographics

The study involved the plant species Datisca glomerata.

Digital Object Identifier (DOI)

10.1371/journal.pbio.0060068

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