Ozone effects on cell wall metabolism of Avena coleoptile sections
Pretreatment of coleoptile tissue with 90 to 140 ppm by volume of ozone resulted in a subsequent stimulation of glucose uptake without destroying the final growth capacity of the tissue. This phenomenon occured at both 10/sup -5/ M and 0.05 M external glucose concentration. Cellulose synthesis and incorporation of C/sup 14/ from C/sup 14/ labeled glucose into glucan components of the cell wall were most readily inhibited by ozone treatment. Metabolism of other cell wall components was affected much less under conditions resulting in less than 50% inhibition of potential growth. The relationship of ozone to other inhibitors of cell wall metabolism and growth was discussed. It was suggested that ozone inhibition of glucan and cellulose metabolism may be a factor in inhibition of plant growth by ozone.
- Research Organization:
- Univ. of California, Riverside
- OSTI ID:
- 6535277
- Journal Information:
- Plant Physiol.; (United States), Journal Name: Plant Physiol.; (United States) Vol. 39:5; ISSN PLPHA
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
Atmospheric-- Chemicals Monitoring & Transport-- (-1989)
54 ENVIRONMENTAL SCIENCES
560303* -- Chemicals Metabolism & Toxicology-- Plants-- (-1987)
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.
ALDEHYDES
BIOLOGICAL EFFECTS
BIOSYNTHESIS
CARBOHYDRATES
CARBON 14 COMPOUNDS
CELL CONSTITUENTS
CELL WALL
CELLULOSE
CEREALS
COLEOPTILE
GLUCOSE
GRAMINEAE
GRASS
GROWTH
HEXOSES
INHIBITION
LABELLED COMPOUNDS
METABOLISM
MONOSACCHARIDES
OATS
ORGANIC COMPOUNDS
OZONE
PLANT CELLS
PLANT GROWTH
PLANTS
POLYSACCHARIDES
SACCHARIDES
SYNTHESIS
UPTAKE