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Mass spectrometry imaging of freeze-dried membrane phospholipids of dividing Tetrahymena pyriformis
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- Lanekoff, Ingela, 1975 (author)
- Gothenburg University,Göteborgs universitet,Institutionen för kemi och molekylärbiologi,Department of Chemistry and Molecular Biology,University of Gothenburg,University of Gothenburg, Sweden
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- Phan, Nhu TN, 1981 (author)
- Gothenburg University,Göteborgs universitet,National Center for Imaging Mass Spectrometry,Institutionen för kemi och molekylärbiologi,Department of Chemistry and Molecular Biology,University of Gothenburg,University of Gothenburg, Sweden
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- Van Bell, C. T. (author)
- Edinboro University,Edinboro University, USA
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- (creator_code:org_t)
- 2012-06-14
- 2013
- English.
- In: Surface and Interface Analysis. - : Wiley. - 0142-2421 .- 1096-9918. ; 45:1, s. 211-214
- Journal article (peer-reviewed)
Abstract
Subject headings
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- Time of Flight secondary ion mass spectrometry (TOF-SIMS) has been used to explore the distribution of phospholipids in the plasma membrane of Tetrahymena pyriformis during cell division. The dividing cells were freeze-dried prior to analysis followed by line scan and region of interest analysis at various stages of cell division. The results showed no signs of phospholipid domain formation at the junction between the dividing cells. Instead the results showed that the sample preparation technique had a great impact on one of the examined phospholipids, namely phosphatidylcholine (PC). Phosphatidylcholine and 2-aminoethylphosphonolipid (2-AEP) have therefore been evaluated in Tetrahymena cells that have been subjected to different sample preparation techniques: freeze drying ex situ, freeze fracture, and freeze fracture with partial or total freeze drying in situ. The result suggests that freeze drying ex situ causes the celia to collapse and cover the plasma membrane.
Subject headings
- NATURVETENSKAP -- Kemi (hsv//swe)
- NATURAL SCIENCES -- Chemical Sciences (hsv//eng)
Keyword
- Tetrahymena
- dividing cells
- freeze drying
- freeze fracture
- phospholipids
- SIMS
- tof-sims
- cytokinesis
- thermophila
- ciliate
- phosphonolipids
- localization
- motility
- samples
- thermophila
Publication and Content Type
- ref (subject category)
- art (subject category)
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- Chalmers University of Technology
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