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Effect of ozone on leaf cell membranes

Journal Article:

Abstract

The objective of this study was to determine the effects of ozone on membrane lipids and on the electron-density patterns of cell membranes in electron micrographs. Analysis of fatty acids from tobacco leaves fumigated with ozone indicated that there was no significant difference between the ozone-treated and the control plants in the relative amounts of the fatty acids. This suggests that if the primary site of ozone action is unsaturated lipids in membranes then the amounts of affected unsaturated fatty acids are too small to be detected by gas chromatography. In support of this, characteristic electron-microscopic images of membranes are observed in cells of fumigated leaves. However, measurements of the length and width of the chloroplasts and the determination of axial ratios indicated that the ozone treatment resulted in a shrinkage of the chloroplasts. In contrast, mitochondrial changes are apparently explained in terms of ozone-induced swelling. 33 references, 3 figures, 1 table.
Publication Date:
Jan 01, 1973
Product Type:
Journal Article
Reference Number:
EDB-85-142484
Resource Relation:
Journal Name: Can. J. Bot.; (Canada); Journal Volume: 51
Subject:
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; CELL MEMBRANES; ELECTRON DENSITY; OZONE; BIOLOGICAL EFFECTS; AIR POLLUTION; CARBOXYLIC ACIDS; CHLOROPLASTS; ELECTRON MICROSCOPY; EXPERIMENTAL DATA; LEAVES; LIPIDS; MITOCHONDRIA; NICOTIANA; CELL CONSTITUENTS; DATA; INFORMATION; MEMBRANES; MICROSCOPY; NUMERICAL DATA; ORGANIC ACIDS; ORGANIC COMPOUNDS; ORGANOIDS; PLANTS; POLLUTION; 560303* - Chemicals Metabolism & Toxicology- Plants- (-1987)
OSTI ID:
5353682
Research Organizations:
Univ. of California, Riverside
Country of Origin:
Canada
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: CJBOA
Submitting Site:
HEDB
Size:
Pages: 1213-1219
Announcement Date:

Journal Article:

Citation Formats

Swanson, E S, Thomson, W W, and Mudd, J B. Effect of ozone on leaf cell membranes. Canada: N. p., 1973. Web. doi:10.1139/b73-152.
Swanson, E S, Thomson, W W, & Mudd, J B. Effect of ozone on leaf cell membranes. Canada. doi:10.1139/b73-152.
Swanson, E S, Thomson, W W, and Mudd, J B. 1973. "Effect of ozone on leaf cell membranes." Canada. doi:10.1139/b73-152. https://www.osti.gov/servlets/purl/10.1139/b73-152.
@misc{etde_5353682,
title = {Effect of ozone on leaf cell membranes}
author = {Swanson, E S, Thomson, W W, and Mudd, J B}
abstractNote = {The objective of this study was to determine the effects of ozone on membrane lipids and on the electron-density patterns of cell membranes in electron micrographs. Analysis of fatty acids from tobacco leaves fumigated with ozone indicated that there was no significant difference between the ozone-treated and the control plants in the relative amounts of the fatty acids. This suggests that if the primary site of ozone action is unsaturated lipids in membranes then the amounts of affected unsaturated fatty acids are too small to be detected by gas chromatography. In support of this, characteristic electron-microscopic images of membranes are observed in cells of fumigated leaves. However, measurements of the length and width of the chloroplasts and the determination of axial ratios indicated that the ozone treatment resulted in a shrinkage of the chloroplasts. In contrast, mitochondrial changes are apparently explained in terms of ozone-induced swelling. 33 references, 3 figures, 1 table.}
doi = {10.1139/b73-152}
journal = {Can. J. Bot.; (Canada)}
volume = {51}
journal type = {AC}
place = {Canada}
year = {1973}
month = {Jan}
}