TY  - JOUR
A1  - Castellanos, Reynel Urrea
A1  - Friedrich, Thomas
A1  - Petrovic, Nevena
A1  - Altmann, Simone
A1  - Brzezinka, Krzysztof
A1  - Gorka, Michal
A1  - Graf, Alexander
A1  - Bäurle, Isabel
T1  - FORGETTER2 protein phosphatase and phospholipase D modulate heat stress memory in Arabidopsis
JF  - The plant journal
N2  - 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 forArabidopsis thalianamutants impaired in the memory of heat stress (HS) we have isolated theFORGETTER2(FGT2) gene, which encodes a type 2C protein phosphatase (PP2C) of the D-clade.Fgt2mutants acquire thermotolerance normally; however, they are defective in the memory of HS. FGT2 interacts with phospholipase D alpha 2 (PLD alpha 2), 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 PLD alpha 2 as crucial players, suggesting that phosphatidic acid-dependent signaling or membrane composition dynamics underlie HS memory.
KW  - priming
KW  - protein phosphatase
KW  - stress memory
KW  - heat stress
KW  - Arabidopsis
KW  - thaliana
Y1  - 2020
U6  - https://doi.org/10.1111/tpj.14927
SN  - 0960-7412
SN  - 1365-313X
VL  - 104
IS  - 1
SP  - 7
EP  - 17
PB  - Wiley
CY  - Hoboken
ER  -