4.7 Article

The bacterial biocontrol agent Paenibacillus alvei K165 confers inherited resistance to Verticillium dahliae

Journal

JOURNAL OF EXPERIMENTAL BOTANY
Volume 72, Issue 12, Pages 4565-4576

Publisher

OXFORD UNIV PRESS
DOI: 10.1093/jxb/erab154

Keywords

Arabidopsis; biocontrol agents; fungal pathogens; resistance; symbiosis; Verticillium

Categories

Funding

  1. Hellenic Foundation for Research and Innovation (H.F.R.I.)
  2. General Secretariat for Research and Technology (GSRT) [551]
  3. H.F.R.I. [125]
  4. Biotechnology and Biological Sciences Research Council (BBSRC) through MIBTP [BB/J014532/1]
  5. Royal Society
  6. BBSRC/EPSRC [BB/M017982/1]

Ask authors/readers for more resources

The study demonstrates that the biocontrol agent K165 can confer inherited immune resistance to plants against Verticillium dahliae through histone acetylation. Offspring of plants treated with K165 exhibit primed immunity and enhanced lignification, paving the way for the use of biocontrol agents for establishing inheritable resistance to agronomically important pathogens.
The biocontrol agent Paenibacillus alvei K165 was previously shown to protect Arabidopsis thaliana plants against Verticillium dahliae. Here we show that K165 also confers inherited immune resistance to V. dahliae. By performing a histone acetyltransferases mutant screen, ChIP assays, and transcriptomic experiments, we were able to show that histone acetylation significantly contributes to the K165 biocontrol activity and establishment of inheritable resistance to V. dahliae. K165 treatment primed the expression of immune-related marker genes and the cinnamyl alcohol dehydrogenase gene CAD3 through the function of histone acetyltransferases. Our results reveal that offspring of plants treated with K165 have primed immunity and enhanced lignification, both contributing towards the K165-mediated inherited immune resistance. Thus, our study paves the way for the use of biocontrol agents for the establishment of inheritable resistance to agronomically important pathogens.

Authors

I am an author on this paper
Click your name to claim this paper and add it to your profile.

Reviews

Primary Rating

4.7
Not enough ratings

Secondary Ratings

Novelty
-
Significance
-
Scientific rigor
-
Rate this paper

Recommended

No Data Available
No Data Available