Ozone effects on plant cell permeability

Journal Article · Thu Aug 01 04:00:00 EDT 1974 · Am. J. Bot.; (United States)

DOI:https://doi.org/10.2307/2441795· OSTI ID:6798845

Perchorowicz, J T; Ting, I P

The effect of ozone on plant cell permeability was examined. Pinto bean plants (Phaseolus vulgaris) were exposed to 0.4 ppm ozone for one hr and discs cut from primary leaves were allowed to take up /sup 14/C-UL-d-glucose or /sup 14/C-UL-2-deoxy-d-glucose. Uptake of 2-deoxy-d-glucose one hr after exposure appeared lower in exposed tissue than controls, while 24 hr after exposure uptake of both sugars by exposed tissue was three times that of controls. When uptake in one hr was examined at various times after exposure up to twenty hr it was found that permeability did not increase until several hr after the end of exposure. Cursory examination of the internal distribution of /sup 14/C label showed that the increase in permeability was not a function of increased metabolic activity since no differences were seen between exposed and control tissue, except in fractions representing cell wall material. The same percentage of /sup 14/CO/sub 2/ was released by exposed and control tissue even though uptake of glucose was greater in exposed tissue. These data are interpreted to mean that the primary targets for ozone are cellular membranes, resulting in alterations in membrane permeability.

• Research Organization: Univ. of California, Riverside
• OSTI ID: 6798845
• Journal Information: Am. J. Bot.; (United States), Journal Name: Am. J. Bot.; (United States) Vol. 61:7; ISSN AJBOA
• Country of Publication: United States
• Language: English

Related Subjects

500200 -- Environment
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
550201 -- Biochemistry-- Tracer Techniques
560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
59 BASIC BIOLOGICAL SCIENCES
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ALDEHYDES
BIOLOGICAL EFFECTS
CARBOHYDRATES
CARBON 14 COMPOUNDS
CARBON COMPOUNDS
CARBON DIOXIDE
CARBON OXIDES
CELL CONSTITUENTS
CELL MEMBRANES
CHALCOGENIDES
GLUCOSE
HEXOSES
ISOTOPE APPLICATIONS
LABELLED COMPOUNDS
LEAVES
LEGUMINOSAE
MEMBRANES
MONOSACCHARIDES
ORGANIC COMPOUNDS
OXIDES
OXYGEN COMPOUNDS
OZONE
PERMEABILITY
PHASEOLUS
PLANT CELLS
PLANTS
SACCHARIDES
SENSITIVITY
TRACER TECHNIQUES
UPTAKE