Plant injury induced by ozone

Journal Article · Thu Jun 01 00:00:00 EDT 1961 · Phytopathology; (United States)

OSTI ID:5518148

Hill, A C; Pack, M R; Treshow, M; Downs, R J; Transtrum, L G

Phytotoxicity of ozone to 34 plant species was studied in controlled-atmosphere greenhouses. Plants were subjected at various stages of growth to 0.13-0.72 ppm ozone for 2-hour periods. Injury symptoms developed on 28 species. Some of the most sensitive species were small grains, alfalfa, spinach, and tobacco. There was a general tendency for sensitivity to increase with maturity of tissue. Palisade cells were most readily injured by ozone. On plants with adaxial palisade parenchyma, chlorotic spots and bleached necrotic areas developed on the upper leaf surface. Injury was equally apparent from either leaf surface of plants with undifferentiated mesophyll. Necrotic spots extending completely through the leaf developed on plants with either mesophyll structure when injury was severe. Ozone caused conspicuous tumors to develop on broccoli leaves. Symptoms similar to those produced by ozone fumigations have been observed on a wide range of plant species growing near several large metropolitan centers. 18 references, 8 figures, 2 tables.

• Research Organization: United States Steel Corporation, Provo, UT
• OSTI ID: 5518148
• Journal Information: Phytopathology; (United States), Vol. 51
• Country of Publication: United States
• Language: English

Related Subjects

63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ALFALFA
SENSITIVITY
LEAVES
NECROSIS
NICOTIANA
OZONE
TOXICITY
PLANT CELLS
INJURIES
SPINACH
AGE DEPENDENCE
AIR POLLUTION
CONTROLLED ATMOSPHERES
DOSE-RESPONSE RELATIONSHIPS
SYMPTOMS
ATMOSPHERES
FOOD
LEGUMINOSAE
PATHOLOGICAL CHANGES
PLANTS
POLLUTION
VEGETABLES
560303* - Chemicals Metabolism & Toxicology- Plants- (-1987)