Effect of air-borne oxidants on leaves of pinto bean and petunia

Journal Article · Thu Dec 31 23:00:00 EST 1959 · Proc. Am. Soc. Hortic. Sci.; (United States)

OSTI ID:5262097

Taylor, O C; Stephens, E R; Darley, E F; Cardiff, E A

Experiments were conducted for the purpose of comparing the characteristics of leaf injury on petunia and pinto bean plants in the presence of: ozone, the reaction products of ozone and l-hexene, irradiated nitrogen dioxide and l-hexene, and oxidants in polluted ambient air. Ozone caused: chlorosis at dosages less than 0.2 ppm and long exposure and mesophyll collapse at dosages more than 0.25 ppm on the oldest petunia leaves, and mesophyll collapse on 14-day-old pinto bean leaves and to less extent on 7-day-old bean leaves. Reaction products of ozone and l-hexene caused no visible injury on petunia leaves but caused glazing of the under surface and mesophyll collapse on 14-day-old pinto bean leaves. Photochemical reaction products of nitrogen dioxide and l-hexene caused: banding and lower surface glazing of young, expanding petunia leaves; bronzing and glazing of lower surface of 7-day-old primary and trifoliate pinto bean leaves; and no injury of 14-day-old pinto bean leaves. Oxidants in polluted ambient air caused ozone and ozone-hexene types of injury on pinto bean plants, but the injury most prevalent on the bean and petunia plants appeared to be identical with that caused by the irradiated mixtures. 10 references, 5 figures, 1 table.

• Research Organization: Univ. of California Citrus Experiment Station, Riverside
• OSTI ID: 5262097
• Journal Information: Proc. Am. Soc. Hortic. Sci.; (United States), Journal Name: Proc. Am. Soc. Hortic. Sci.; (United States) Vol. 75; ISSN PASHA
• 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.
AIR POLLUTION
ALKENES
BIOLOGICAL EFFECTS
CHALCOGENIDES
COMPARATIVE EVALUATIONS
DAMAGE
HEXENES
HYDROCARBONS
INJURIES
LEAVES
LEGUMINOSAE
NITROGEN COMPOUNDS
NITROGEN DIOXIDE
NITROGEN OXIDES
ORGANIC COMPOUNDS
ORNAMENTAL PLANTS
OXIDES
OXYGEN COMPOUNDS
OZONE
PHASEOLUS
PHOTOCHEMICAL OXIDANTS
PLANTS
POLLUTION
SYMPTOMS