Early stress proteins in soybean cells under anoxia. [Glycine max]
Conference
·
· Plant Physiol., Suppl.; (United States)
OSTI ID:5897704
This research examines the molecular effects of anaerobic stress on soybean cells. Soybean (Glycine max, var Keller) suspension cell cultures are incubated under controlled atmospheric flux having 21, 10, 2, and 0 kPa O/sub 2/ for 0 to 4 h and labelled with /sup 3/H-leucine for the last hour of treatment. Proteins are extracted and resolved by 2-D gels. Cell viability is determined by fluorescein diacetate stain. During the first hour of exposure to 10 kPa O/sub 2/, a pattern of three novel early stress proteins (ESP) having 28, 32 and 100 kD MW and 4.0-4.8 pI is detected by 2-D gels. As oxygen concentration decreases, two of these proteins cease to be expressed, while the third (32 kD) continues to be expressed for up to one hour under 0 kPa O/sub 2/. After two hours under anoxia, protein synthesis in soybean cell cultures essentially stops, while the cell viability still remains higher than 90%. Changes in the abundance of in vitro translation products of ESP-specific mRNAs during hypoxia will be reported.
- Research Organization:
- USDA-ARS, Columbus, OH
- OSTI ID:
- 5897704
- Report Number(s):
- CONF-8707108-
- Conference Information:
- Journal Name: Plant Physiol., Suppl.; (United States) Journal Volume: 83:4
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
550200 -- Biochemistry
560300* -- Chemicals Metabolism & Toxicology
59 BASIC BIOLOGICAL SCIENCES
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AMINO ACIDS
ANOXIA
BACTERIA
BIOLOGICAL EFFECTS
BIOSYNTHESIS
CARBOXYLIC ACIDS
CELL CULTURES
ELECTROPHORESIS
ELEMENTS
GLYCINE HISPIDA
ISOTOPE APPLICATIONS
LABELLED COMPOUNDS
LEGUMINOSAE
LEUCINE
MESSENGER-RNA
MICROORGANISMS
MOLECULAR WEIGHT
NONMETALS
NUCLEIC ACIDS
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXYGEN
PLANT CELLS
PLANTS
PROTEINS
RHIZOBIUM
RNA
STAINS
SYNTHESIS
TRACER TECHNIQUES
TRITIUM COMPOUNDS
560300* -- Chemicals Metabolism & Toxicology
59 BASIC BIOLOGICAL SCIENCES
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
AMINO ACIDS
ANOXIA
BACTERIA
BIOLOGICAL EFFECTS
BIOSYNTHESIS
CARBOXYLIC ACIDS
CELL CULTURES
ELECTROPHORESIS
ELEMENTS
GLYCINE HISPIDA
ISOTOPE APPLICATIONS
LABELLED COMPOUNDS
LEGUMINOSAE
LEUCINE
MESSENGER-RNA
MICROORGANISMS
MOLECULAR WEIGHT
NONMETALS
NUCLEIC ACIDS
ORGANIC ACIDS
ORGANIC COMPOUNDS
OXYGEN
PLANT CELLS
PLANTS
PROTEINS
RHIZOBIUM
RNA
STAINS
SYNTHESIS
TRACER TECHNIQUES
TRITIUM COMPOUNDS