Effects of air pollutants on Nicotiana cultivars and species used for virus studies

Journal Article · Sun Aug 01 04:00:00 EDT 1971 · Phytopathology; (United States)

DOI:https://doi.org/10.1094/Phyto-61-945· OSTI ID:6334082

Grosso, J J; Menser, H A; Hodges, G H; McKinney, H H

Three tobacco cultivars (Nicotiana tabacum) and two Nicotiana species, used for virus identification studies, were tested for susceptibility to air pollutants. The air pollutants used were (i) ozone; (ii) sulfur dioxide; and (iii) a mixture of both gases. Nicotiana rustica var. brasilia was the most susceptible cultivar to injury from individual gases, a gas mixture, and ambient polluted air. Nicotiana rustica var. brasilia displayed from 25 to 70% leaf injury when exposed to increasing ozone doses (10 to 30 pphm). Ozone injury to N. glutinosa fumigated at the same doses ranged from 10 to 60%. Samsun, Samsun (NN), and Xanthi cultivars were more resistant to ozone than N. rustica var. brasilia or N. glutinosa. Sulfur dioxide (ca. 45 pphm) added to an ozone (ca. 3.0 pphm) atmosphere induced a synergistic response evidenced as injury to all cultivars and species. Mixed gas injury was more acute on N. glutinosa and N. rustica var. brasilia than on Samsun, Samsun (NN), and Xanthi. Samsun and Samsun (NN) were more susceptible to sulfur dioxide (125 pphm) than N. glutinosa and Xanthi. Fumigations produced two injury syndromes: (i) light or dark punctate flecks, on upper leaf surfaces; or (ii) bifacial tissue collapse.

• Research Organization: USDA, Beltsville, MD
• OSTI ID: 6334082
• Journal Information: Phytopathology; (United States), Journal Name: Phytopathology; (United States) Vol. 61; ISSN PHYTA
• 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
BIOLOGICAL INDICATORS
CHALCOGENIDES
COMPARATIVE EVALUATIONS
DOSE-RESPONSE RELATIONSHIPS
FOLIAR UPTAKE
INJURIES
LEAVES
MICROORGANISMS
NICOTIANA
OXIDES
OXYGEN COMPOUNDS
OZONE
PARASITES
PLANTS
SENSITIVITY
SPECIES DIVERSITY
SULFUR COMPOUNDS
SULFUR DIOXIDE
SULFUR OXIDES
SYNERGISM
UPTAKE
VIRUSES