English
 
Help Privacy Policy Disclaimer
  Advanced SearchBrowse

Item

ITEM ACTIONSEXPORT
Add to Basket
  Local TagsRelease HistoryDetailsSummary

Released
Journal Article

The Transcription factor HSFA7b controls thermomemory at the shoot apical meristem by regulating ethylene biosynthesis and signaling in Arabidopsis

MPS-Authors
/persons/resource/persons261430

John,  S.       
Transcription Factors and Gene Regulatory Networks, Cooperative Research Groups, Max Planck Institute of Molecular Plant Physiology, Max Planck Society;

/persons/resource/persons124376

Apelt,  Federico       
Intercellular Macromolecular Transport, Department Köhler, Max Planck Institute of Molecular Plant Physiology, Max Planck Society;

/persons/resource/persons203063

Acosta,  I.       
Mycorrhiza and Root Biology, Department Gutjahr, Max Planck Institute of Molecular Plant Physiology, Max Planck Society;

/persons/resource/persons293908

Bents,  D.
Intercellular Macromolecular Transport, Department Köhler, Max Planck Institute of Molecular Plant Physiology, Max Planck Society;

/persons/resource/persons212771

Fichtner,  F.
System Regulation, Department Stitt, Max Planck Institute of Molecular Plant Physiology, Max Planck Society;

/persons/resource/persons275956

Gutjahr,  C.       
Mycorrhiza and Root Biology, Department Gutjahr, Max Planck Institute of Molecular Plant Physiology, Max Planck Society;

/persons/resource/persons97307

Mueller-Roeber,  B.       
Transcription Factors and Gene Regulatory Networks, Cooperative Research Groups, Max Planck Institute of Molecular Plant Physiology, Max Planck Society;

External Resource
No external resources are shared
Fulltext (restricted access)
There are currently no full texts shared for your IP range.
Fulltext (public)
There are no public fulltexts stored in PuRe
Supplementary Material (public)
There is no public supplementary material available
Citation

John, S., Apelt, F., Kumar, A., Acosta, I., Bents, D., Annunziata, M. G., et al. (2024). The Transcription factor HSFA7b controls thermomemory at the shoot apical meristem by regulating ethylene biosynthesis and signaling in Arabidopsis. Plant Communications, 5(3): 100743. doi:10.1016/j.xplc.2023.100743.


Cite as: https://hdl.handle.net/21.11116/0000-000D-FA3C-7
Abstract
The shoot apical meristem (SAM) is responsible for overall shoot growth by generating all above-ground structures. Recent research identified that the SAM displays an autonomous heat stress (HS) memory of a previous non-lethal HS event. Considering the importance of the SAM for plant growth it is essential to unlock how its thermomemory is mechanistically controlled. Here, we report that HEAT SHOCK TRANSCRIPTION FACTOR A7b (HSFA7b) plays a crucial role in this process in Arabidopsis, since the absence of functional HSFA7b results in the temporal suppression of the SAM activity after thermopriming. We found that HSFA7b directly regulates ethylene response at the SAM by binding to the promoter of the key ethylene signaling gene ETHYLENE-INSENSITIVE 3 to establish thermotolerance. Moreover, we demonstrated that HSFA7b regulates the expression of ETHYLENE OVERPRODUCER 1 (ETO1) and ETO1-LIKE 1, both of which encode ethylene biosynthesis repressors, thereby ensuring ethylene homeostasis at the SAM. Taken together, these results indicate a crucial and tissue-specific role of HSFA7b in thermomemory at the Arabidopsis SAM.