Registration Dossier
Registration Dossier
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EC number: 231-818-8 | CAS number: 7757-79-1
Toxicity to terrestrial plants
Administrative data
- Endpoint:
- toxicity to terrestrial plants: short-term
- Adequacy of study:
- supporting study
- Reliability:
- 4 (not assignable)
- Rationale for reliability incl. deficiencies:
- documentation insufficient for assessment
Data source
Reference
- Reference Type:
- publication
- Title:
- Nitrate toxicity in ruminants.
- Author:
- Owens, F.N. and Dubeski, P.
- Year:
- 1 989
- Bibliographic source:
- ASAS production and Management Symposium
Materials and methods
- Principles of method if other than guideline:
- no data
- GLP compliance:
- not specified
Test material
- Reference substance name:
- Potassium nitrate
- EC Number:
- 231-818-8
- EC Name:
- Potassium nitrate
- Cas Number:
- 7757-79-1
- Molecular formula:
- HNO3.K
- IUPAC Name:
- potassium nitrate
- Test material form:
- solid: crystalline
- Details on test material:
- Name of test material: potassium nitrate (KNO3)
Physical appearance: colourless crystalline solid or a white crystalline or granular powder
Constituent 1
Sampling and analysis
- Analytical monitoring:
- not specified
Test substrate
- Vehicle:
- not specified
Results and discussion
Any other information on results incl. tables
Nitrate absorbed by plants is reduced to nitrite by the enzyme nitrate reductase. This enzyme is found in plants, certain bacterial species, and mammalian gastric tissue. The nitrite will be further reduced only when photosynthesis and carbohydrate synthesis are active. Under drought conditions, frost and shading, or deficiencies of other nutrients, each of which reduce photosynthesis and biosynthesis of protein, nitrate continues to be absorbed and may accumulate in plant tissue.
Applicant's summary and conclusion
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