Electron spin resonance of 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO)-labeled plant leaves [Tomatoes, potatoes, wheat]

Temperature dependence for partitioning of 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) between aqueous and lipid components of whole leaf tissue was measured. TEMPO is an electron spin resonance nitroxide label that has been used in model systems to detect membrane phase separations. Measurements w...

Full description

Saved in:
Bibliographic Details
Published in:Plant physiology (Bethesda) 1979-06, Vol.63 (6), p.1220-1222
Main Authors: Fey, R L, Workman, M, Marcellos, H, Burke, M J
Format: Article
Language:English
Subjects:
Cooling
Electrical phases
Electron paramagnetic resonance
Freezing
Leaves
Line spectra
Lipids
Magnetic fields
Plants
Short Communications
Spin labels
Citations: Items that cite this one
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:Temperature dependence for partitioning of 2,2,6,6-tetramethylpiperidine-1-oxyl (TEMPO) between aqueous and lipid components of whole leaf tissue was measured. TEMPO is an electron spin resonance nitroxide label that has been used in model systems to detect membrane phase separations. Measurements were made on chilling-sensitive tomato leaves, frost-sensitive potato leaves, and frost-hardy and supercooled wheat leaves. The results suggest a membrane phase separation at 11 C in tomato, 3 C in potato, and -11 C in wheat.
ISSN:0032-0889
1532-2548
DOI:10.1104/pp.63.6.1220