FORGETTER2 protein phosphatase and phospholipase D modulate heat stress memory in Arabidopsis.
Plant J
; 104(1): 7-17, 2020 09.
Article
in En
| MEDLINE
| ID: mdl-32654320
ABSTRACT
Plants can mitigate environmental stress conditions through acclimation. In the case of fluctuating stress conditions such as high temperatures, maintaining a stress memory enables a more efficient response upon recurring stress. In a genetic screen for Arabidopsis thaliana mutants impaired in the memory of heat stress (HS) we have isolated the FORGETTER2 (FGT2) gene, which encodes a type 2C protein phosphatase (PP2C) of the D-clade. Fgt2 mutants acquire thermotolerance normally; however, they are defective in the memory of HS. FGT2 interacts with phospholipase D α2 (PLDα2), which is involved in the metabolism of membrane phospholipids and is also required for HS memory. In summary, we have uncovered a previously unknown component of HS memory and identified the FGT2 protein phosphatase and PLDα2 as crucial players, suggesting that phosphatidic acid-dependent signaling or membrane composition dynamics underlie HS memory.
Key words
Full text:
1
Collection:
01-internacional
Database:
MEDLINE
Main subject:
Phospholipase D
/
Arabidopsis
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Phosphoprotein Phosphatases
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Heat-Shock Response
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Arabidopsis Proteins
Language:
En
Journal:
Plant J
Journal subject:
BIOLOGIA MOLECULAR
/
BOTANICA
Year:
2020
Document type:
Article
Affiliation country:
Germany
Publication country:
ENGLAND
/
ESCOCIA
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GB
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GREAT BRITAIN
/
INGLATERRA
/
REINO UNIDO
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SCOTLAND
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UK
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UNITED KINGDOM