Abstract
Increasing evidence suggests a major role for phosphatidylcholine (PC) in plant stress adaptation. The present work investigated the regulation of choline, PC and interconnected phosphatidylethanolamine biosynthesis in Arabidopsis thaliana L. as a function of cold- and salt- or mannitol-mediated hyperosmotic stresses. While PC synthesis is accelerated in both salt- and cold-treated plants, the choline kinase (CK) and phosphocholine cytidylyltransferase genes are oppositely regulated with respect to these abiotic treatments. Salt stress also stimulates CK activity in vitro. A possible regulatory role of CK in stimulating PC biosynthesis rate in salt-stressed plants is discussed.
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Claims 3
Claim · model-written summary
Salt and cold treatments accelerate PC synthesis in Arabidopsis.
- Taxon
- Arabidopsis thaliana
Arabidopsis thalianat0 - Treatment
- salt- and cold-treatede0
- Outcome
- PC synthesise0
- Direction
- acceleratede0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“While PC synthesis is accelerated in both salt- and cold-treated plants”
t0“Arabidopsis thaliana”
Claim · model-written summary
Choline kinase and phosphocholine cytidylyltransferase genes are regulated oppositely by salt and cold.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Gene
- choline kinase (CK) and phosphocholine cytidylyltransferase genese0
- Outcome
- oppositely regulated with respect to these abiotic treatmentse0
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“the choline kinase (CK) and phosphocholine cytidylyltransferase genes are oppositely regulated with respect to these abiotic treatments.”
t0“Arabidopsis thaliana”
Claim · model-written summary
Salt stress stimulates CK activity in vitro.
- Taxon
- Arabidopsis thalianaArabidopsis thalianat0
- Treatment
- Salt stresse0
- Gene
- CKe0
- Outcome
- CK activitye0
- Direction
- stimulatese0
- Setting
- in vitroe0
Not reportedComparator
Organisms pictured · Representative pictures of the matched species, not figures from the paper.
Verbatim
e0“Salt stress also stimulates CK activity in vitro.”
t0“Arabidopsis thaliana”
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