Exogenous proline relieves growth inhibition caused by NaCl in petunia cells: Metabolism of L-( sup 15 M)-proline followed by sup 15 N NMR
Journal Article
·
· Plant Physiology, Supplement; (USA)
OSTI ID:6649745
- Los Alamos National Lab., NM (USA)
Exogenous proline stimulated the growth of Petunia hybrida cells on 195 mM NaCl 10-fold as compared with cells grown on 195 mM CaCl medium minus proline. L-({sup 15}N)-proline was fed to cells growing on 0 and 195 mM CaCl, and its metabolism was followed by {sup 15}N NMR analysis of cell extracts. Total proline and amino acids were determined by ninhydrin assay. Proline and primary amino acids were easily resolved in NMR spectra and the amount of {sup 15}N-label which remained in proline was determined. Reduced catabolism of proline in cells grown on NaCl was evident. The role of exogenous proline in conferring increased NaCl tolerance in this nonhalophyte will be discussed.
- OSTI ID:
- 6649745
- Journal Information:
- Plant Physiology, Supplement; (USA), Journal Name: Plant Physiology, Supplement; (USA) Vol. 89:4; ISSN PPYSA; ISSN 0079-2241
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
550201* -- Biochemistry-- Tracer Techniques
550501 -- Metabolism-- Tracer Techniques
59 BASIC BIOLOGICAL SCIENCES
ALKALI METAL COMPOUNDS
AMINES
AMINO ACIDS
AZOLES
CARBOXYLIC ACIDS
CHLORIDES
CHLORINE COMPOUNDS
GROWTH
HALIDES
HALOGEN COMPOUNDS
HERBS
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
ISOTOPE APPLICATIONS
ISOTOPES
LIGHT NUCLEI
METABOLISM
NITROGEN 15
NITROGEN ISOTOPES
NMR SPECTRA
NUCLEI
ODD-EVEN NUCLEI
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PLANT GROWTH
PLANTS
PROLINE
PYRROLES
PYRROLIDINES
SODIUM CHLORIDES
SODIUM COMPOUNDS
SPECTRA
STABLE ISOTOPES
TRACER TECHNIQUES
550501 -- Metabolism-- Tracer Techniques
59 BASIC BIOLOGICAL SCIENCES
ALKALI METAL COMPOUNDS
AMINES
AMINO ACIDS
AZOLES
CARBOXYLIC ACIDS
CHLORIDES
CHLORINE COMPOUNDS
GROWTH
HALIDES
HALOGEN COMPOUNDS
HERBS
HETEROCYCLIC ACIDS
HETEROCYCLIC COMPOUNDS
ISOTOPE APPLICATIONS
ISOTOPES
LIGHT NUCLEI
METABOLISM
NITROGEN 15
NITROGEN ISOTOPES
NMR SPECTRA
NUCLEI
ODD-EVEN NUCLEI
ORGANIC ACIDS
ORGANIC COMPOUNDS
ORGANIC NITROGEN COMPOUNDS
PLANT GROWTH
PLANTS
PROLINE
PYRROLES
PYRROLIDINES
SODIUM CHLORIDES
SODIUM COMPOUNDS
SPECTRA
STABLE ISOTOPES
TRACER TECHNIQUES