Ozone damage to tobacco

Book · Sun Jan 01 04:00:00 EST 1967

OSTI ID:5884644

Rich, S

Ozone is the principal air pollutant damaging tobacco in Connecticut. The natural incidence of ozone is sufficiently frequent and severe so that only ozone-resistant strains of tobacco can be grown successfully in the State. Our studies have shown that tobacco and other plants visibly damaged by ozone contain markedly higher amounts of total free amino acids. Ozonated tobacco and beans examined prior to visible damage show consistent changes in only three amino acids: alanine and ..gamma..-aminobutyric acid increase, and glutamic acid decreases. Both the external symptoms and the metabolic pattern of ozone damage can be produced by treating plants with either sulfhydryl reagents or with 2,4-dinitrophenol. These results and studies now in progress indicate that ozone causes damage by interfering with the energy relations of the cells.

• OSTI ID: 5884644
• Country of Publication: United States
• Language: English

Related Subjects

560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ALANINES
AMINO ACIDS
AMINOBUTYRIC ACID
AUTONOMIC NERVOUS SYSTEM AGENTS
BIOLOGICAL EFFECTS
CARBOXYLIC ACIDS
CONNECTICUT
DAMAGE
DRUGS
FEDERAL REGION I
GLUTAMIC ACID
INJURIES
METABOLISM
NEUROREGULATORS
NICOTIANA
NORTH AMERICA
ORGANIC ACIDS
ORGANIC COMPOUNDS
OZONE
PLANTS
SYMPTOMS
USA