Responses to heat shock, arsenite and cadmium in soybean
Journal Article
·
· Plant Physiology, Supplement; (USA)
OSTI ID:7189096
- Dept. of Energy, East Lansing, MI (USA)
- Univ. of Georgia, Athens (USA)
Heat shock (HS), arsenite (As) and cadmium (Cd) treatments induced the HS response in soybean seedlings but differed in their abilities to induce stress tolerance. Pretreatment of seedlings with sub-lethal HS protected them from subsequent normally lethal HS treatment. However, the protection was much more pronounced in 1 day-old than in 2 day-old plants. Sublethal arsenite pretreatment resulted in only a low level of protection against lethal As or HS treatment and severe damage still occurred in specific tissues. Cadmium did not induce any self- or cross-protection. DNA sequence analyses revealed that HS, As and Cd induced the transcription of similar sequences. However, Northern blot analyses of HS mRNAs, and analyses of in vitro translation products and in vivo-labeled proteins by 1D and 2D SDS-PAGE demonstrated that, compared to HS, the response to the chemical stresses was slower, less intense and not as selective. Apparently any causal relationship between HS proteins and induced stress tolerance must also involve developmental-, tissue-, and/or quantitative-specificities.
- OSTI ID:
- 7189096
- 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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Thu Mar 31 23:00:00 EST 1988
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·
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OSTI ID:5641406
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.
ARSENIC COMPOUNDS
BIOLOGICAL STRESS
CADMIUM
DNA SEQUENCING
ELEMENTS
GLYCINE HISPIDA
HEAT TREATMENTS
INJURIES
LEGUMINOSAE
MAGNOLIOPHYTA
MAGNOLIOPSIDA
MESSENGER-RNA
METALS
NUCLEIC ACIDS
ORGANIC COMPOUNDS
PLANTS
RNA
SEEDLINGS
STRUCTURAL CHEMICAL ANALYSIS
TOLERANCE
TOXICITY
TRANSCRIPTION
560300* -- Chemicals Metabolism & Toxicology
59 BASIC BIOLOGICAL SCIENCES
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ARSENIC COMPOUNDS
BIOLOGICAL STRESS
CADMIUM
DNA SEQUENCING
ELEMENTS
GLYCINE HISPIDA
HEAT TREATMENTS
INJURIES
LEGUMINOSAE
MAGNOLIOPHYTA
MAGNOLIOPSIDA
MESSENGER-RNA
METALS
NUCLEIC ACIDS
ORGANIC COMPOUNDS
PLANTS
RNA
SEEDLINGS
STRUCTURAL CHEMICAL ANALYSIS
TOLERANCE
TOXICITY
TRANSCRIPTION