Effects of ozone on root processes

Journal Article · Sun Jan 01 04:00:00 EST 1978 · Calif. Air Environ.; (United States)

OSTI ID:5474471

Tingey, D T

Ozone is a gas injurious to plant growth. It enters the plant mainly through the leaves where it also exerts its primary effect. Studies with alfalfa, soybeans, tobacco, and radishes show that ozone suppresses root growth more severely than foliage growth. The ozone alters root growth and root processes by first reducing photosynthesis and altering foliar metabolic pathways. The alteration in foliar metabolism is reflected in lower carbohydrate levels in the roots. This can reduce key metabolic processes such as mineral uptake and symbiotic nitrogen fixation. These changes in root metabolism will ultimately be expressed in reduced plant growth and yield.

• Research Organization: Environmental Protection Agency, Corvallis, OR
• OSTI ID: 5474471
• Journal Information: Calif. Air Environ.; (United States), Journal Name: Calif. Air Environ.; (United States) Vol. 7:1; ISSN CAIEB
• 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.
BIOLOGICAL EFFECTS
CALIFORNIA
CHEMICAL REACTIONS
FEDERAL REGION IX
FOLIAR UPTAKE
GROWTH
NORTH AMERICA
OZONE
PHOTOCHEMICAL REACTIONS
PHOTOSYNTHESIS
PLANT GROWTH
ROOTS
SYNTHESIS
UPTAKE
USA