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פותח על ידי קלירמאש פתרונות בע"מ -
PIF7 is a master regulator of thermomorphogenesis in shade
Year:
2022
Source of publication :
Nature Communications
Authors :
בורקו, יוגב
;
.
Volume :
Co-Authors:
  • Björn Christopher Willige, 
  • Adam Seluzicki, 
  • Ondřej Novák, 
  • Karin Ljung  
  • Joanne Chory 
Facilitators :
From page:
0
To page:
0
(
Total pages:
1
)
Abstract:

The size of plant organs is highly responsive to environmental conditions. The plant’s embryonic stem, or hypocotyl, displays phenotypic plasticity, in response to light and temperature. The hypocotyl of shade avoiding species elongates to outcompete neighboring plants and secure access to sunlight. Similar elongation occurs in high temperature. However, it is poorly understood how environmental light and temperature cues interact to effect plant growth. We found that shade combined with warm temperature produces a synergistic hypocotyl growth response that dependent on PHYTOCHROME-INTERACTING FACTOR 7 (PIF7) and auxin. This unique but agriculturally relevant scenario was almost totally independent on PIF4 activity. We show that warm temperature is sufficient to promote PIF7 DNA binding but not transcriptional activation and we demonstrate that additional, unknown factor/s must be working downstream of the phyB-PIF-auxin module. Our findings will improve the predictions of how plants will respond to increased ambient temperatures when grown at high density.

Note:
Related Files :
Light responses
plant development
Plant signaling
עוד תגיות
תוכן קשור
More details
DOI :
10.1038/s41467-022-32585-6
Article number:
0
Affiliations:
Database:
סקופוס
Publication Type:
מאמר
;
.
Language:
אנגלית
Editors' remarks:
ID:
62046
Last updated date:
20/09/2022 07:58
Creation date:
18/09/2022 17:34
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Scientific Publication
PIF7 is a master regulator of thermomorphogenesis in shade
  • Björn Christopher Willige, 
  • Adam Seluzicki, 
  • Ondřej Novák, 
  • Karin Ljung  
  • Joanne Chory 
PIF7 is a master regulator of thermomorphogenesis in shade

The size of plant organs is highly responsive to environmental conditions. The plant’s embryonic stem, or hypocotyl, displays phenotypic plasticity, in response to light and temperature. The hypocotyl of shade avoiding species elongates to outcompete neighboring plants and secure access to sunlight. Similar elongation occurs in high temperature. However, it is poorly understood how environmental light and temperature cues interact to effect plant growth. We found that shade combined with warm temperature produces a synergistic hypocotyl growth response that dependent on PHYTOCHROME-INTERACTING FACTOR 7 (PIF7) and auxin. This unique but agriculturally relevant scenario was almost totally independent on PIF4 activity. We show that warm temperature is sufficient to promote PIF7 DNA binding but not transcriptional activation and we demonstrate that additional, unknown factor/s must be working downstream of the phyB-PIF-auxin module. Our findings will improve the predictions of how plants will respond to increased ambient temperatures when grown at high density.

Scientific Publication
You may also be interested in