Arabidopsis CaM Binding Protein CBP60g Contributes to MAMP-Induced SA Accumulation and Is Involved in Disease Resistance against Pseudomonas syringae
2009

CBP60g's Role in Plant Defense Against Bacterial Infection

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Author Information

Author(s): Wang Lin, Tsuda Kenichi, Sato Masanao, Cohen Jerry D., Katagiri Fumiaki, Glazebrook Jane

Primary Institution: University of Minnesota

Hypothesis

Does the Arabidopsis CaM Binding Protein CBP60g contribute to salicylic acid accumulation and disease resistance against Pseudomonas syringae?

Conclusion

CBP60g is essential for salicylic acid accumulation and disease resistance in Arabidopsis against Pseudomonas syringae.

Supporting Evidence

  • CBP60g is induced by both pathogen and MAMP treatments.
  • cbp60g mutants accumulate less salicylic acid when treated with MAMPs.
  • Calmodulin binding is essential for the function of CBP60g in defense signaling.
  • Loss-of-function mutants of CBP60g show enhanced growth of Pseudomonas syringae.

Takeaway

CBP60g helps plants fight off bacteria by making a chemical called salicylic acid, which is important for their defense.

Methodology

The study involved using loss-of-function mutants of CBP60g and measuring salicylic acid levels and bacterial growth in response to pathogen infection.

Limitations

The study primarily focused on Arabidopsis and may not be directly applicable to other plant species.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1371/journal.ppat.1000301

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