English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

Background   Paenibacillus polymyxa  SC2, a bacterium isolated from the rhizosphere soil of pepper ( Capsicum annuum  L.), promotes growth and biocontrol of pepper. However, the mechanisms of interaction between  P. polymyxa  SC2 and pepper have not yet been elucidated. This study aimed to investigate the interactional relationship of  P. polymyxa  SC2 and pepper using transcriptomics.    Results   P. polymyxa  SC2 promotes growth of pepper stems and leaves in pot experiments in the greenhouse. Under interaction conditions, peppers stimulate the expression of genes related to quorum sensing, chemotaxis, and biofilm formation in  P. polymyxa  SC2. Peppers induced the expression of polymyxin and fusaricidin biosynthesis genes in  P. polymyxa  SC2, and these genes were up-regulated 2.93- to 6.13-fold and 2.77- to 7.88-fold, respectively. Under the stimulation of medium which has been used to culture pepper, the bacteriostatic diameter of  P. polymyxa  SC2 against  Xanthomonas citri  increased significantly. Concurrently, under the stimulation of  P. polymyxa  SC2, expression of transcription factor genes  WRKY2  and  WRKY40  in pepper was up-regulated 1.17-fold and 3.5-fold, respectively.    Conclusions  Through the interaction with pepper, the ability of  P. polymyxa  SC2 to inhibit pathogens was enhanced.  P. polymyxa  SC2 also induces systemic resistance in pepper by stimulating expression of corresponding transcription regulators. Furthermore, pepper has effects on chemotaxis and biofilm formation of  P. polymyxa  SC2. This study provides a basis for studying interactional mechanisms of  P. polymyxa  SC2 and pepper.    Supplementary Information  The online version contains supplementary material available at 10.1186/s12866-021-02132-2.

Interactional mechanisms of Paenibacillus polymyxa SC2 and pepper (Capsicum annuum L.) suggested by transcriptomics