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/

Zendy Plus

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

Zendy Tools

Zendy Open

Summary  In Arabidopsis roots, the transcription factor  MYB 72 plays a dual role in the onset of rhizobacteria‐induced systemic resistance ( ISR ) and plant survival under conditions of limited iron availability. Previously, it was shown that  MYB 72 coordinates the expression of a gene module that promotes synthesis and excretion of iron‐mobilizing phenolic compounds in the rhizosphere, a process that is involved in both iron acquisition and  ISR  signaling. Here, we show that volatile organic compounds ( VOC s) from  ISR ‐inducing  Pseudomonas  bacteria are important elicitors of   MYB 72 . In response to  VOC  treatment,   MYB 72  is co‐expressed with the iron uptake‐related genes   FERRIC REDUCTION OXIDASE  2  (  FRO 2 ) and   IRON ‐ REGULATED TRANSPORTER  1  (  IRT 1 ) in a manner that is dependent on FER‐LIKE IRON DEFICIENCY TRANSCRIPTION FACTOR (FIT), indicating that  MYB 72 is an intrinsic part of the plant's iron‐acquisition response that is typically activated upon iron starvation. However,  VOC  ‐ induced   MYB 72  expression is activated independently of iron availability in the root vicinity. Moreover, rhizobacterial  VOC ‐mediated induction of   MYB 72  requires photosynthesis‐related signals, while iron deficiency in the rhizosphere activates   MYB 72  in the absence of shoot‐derived signals. Together, these results show that the  ISR ‐ and iron acquisition‐related transcription factor  MYB 72 in Arabidopsis roots is activated by rhizobacterial volatiles and photosynthesis‐related signals, and enhances the iron‐acquisition capacity of roots independently of the iron availability in the rhizosphere. This work highlights the role of  MYB 72 in plant processes by which root microbiota simultaneously stimulate systemic immunity and activate the iron‐uptake machinery in their host plants.

the plant journal

Rhizobacterial volatiles and photosynthesis‐related signals coordinate   MYB 72  expression in Arabidopsis roots during onset of induced systemic resistance and iron‐deficiency responses