Detailed Information on Publication Record
2023
Arabidopsis flippase ALA3 is required for adjustment of early subcellular trafficking in plant response to osmotic stress
PUKYŠOVÁ, Vendula, Adria SANS SÁNCHEZ, Jiří RUDOLF, Tomasz NODZYNSKI, Marta ZWIEWKA et. al.Basic information
Original name
Arabidopsis flippase ALA3 is required for adjustment of early subcellular trafficking in plant response to osmotic stress
Authors
PUKYŠOVÁ, Vendula (203 Czech Republic, belonging to the institution), Adria SANS SÁNCHEZ (724 Spain, belonging to the institution), Jiří RUDOLF (203 Czech Republic, belonging to the institution), Tomasz NODZYNSKI (616 Poland, belonging to the institution) and Marta ZWIEWKA (616 Poland, guarantor, belonging to the institution)
Edition
Journal of Experimental Botany, Oxford, Oxford University Press, 2023, 0022-0957
Other information
Language
English
Type of outcome
Článek v odborném periodiku
Field of Study
10611 Plant sciences, botany
Country of publisher
United Kingdom of Great Britain and Northern Ireland
Confidentiality degree
není předmětem státního či obchodního tajemství
References:
Impact factor
Impact factor: 6.900 in 2022
RIV identification code
RIV/00216224:14740/23:00133365
Organization unit
Central European Institute of Technology
UT WoS
001022967500001
Keywords in English
Arabidopsis thaliana; ARF; endocytosis; flippase; GEF; osmotic stress; protein trafficking; secretion
Tags
International impact, Reviewed
Změněno: 8/10/2024 10:53, Ing. Martina Blahová
Abstract
V originále
To compensate for their sessile lifestyle, plants developed several responses to exogenous changes. One of the previously investigated and not yet fully understood adaptations occurs at the level of early subcellular trafficking, which needs to be rapidly adjusted to maintain cellular homeostasis and membrane integrity under osmotic stress conditions. To form a vesicle, the membrane needs to be deformed, which is ensured by multiple factors, including the activity of specific membrane proteins, such as flippases from the family of P4-ATPases. The membrane pumps actively translocate phospholipids from the exoplasmic/luminal to the cytoplasmic membrane leaflet to generate curvature, which might be coupled with recruitment of proteins involved in vesicle formation at specific sites of the donor membrane. We show that lack of the AMINOPHOSPHOLIPID ATPASE3 (ALA3) flippase activity caused defects at the plasma membrane and trans-Golgi network, resulting in altered endocytosis and secretion, processes relying on vesicle formation and movement. The mentioned cellular defects were translated into decreased intracellular trafficking flexibility failing to adjust the root growth on osmotic stress-eliciting media. In conclusion, we show that ALA3 cooperates with ARF-GEF BIG5/BEN1 and ARF1A1C/BEX1 in a similar regulatory pathway to vesicle formation, and together they are important for plant adaptation to osmotic stress. The interplay of P4-ATPase ALA3, ARF BEX1, and ARF-GEF BEN1 controls vesicle formation at the plasma membrane/trans -Golgi network and the subsequent vesicle trafficking important for the plant response to osmotic stress.
Links
GJ20-20860Y, research and development project |
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LQ1601, research and development project |
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90250, large research infrastructures |
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