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Destruction of enzymatic activities of corn and soybean leaves exposed to ozone

Abstract

Experiments were conducted to determine the effects of a single ozone exposure on selected enzymatic activities and chlorophyll contents of corn and soybean seedlings. Both nitrite reductase activity and chlorophyll content of the seedlings were found to be quite sensitive to ozonation and were seen to decrease as much as 50% after exposure to 80 parts per hundred million (pphm) ozone. After exposure to lower levels of ozone, less-pronounced decreases were observed. Nitrate reductase activity was reduced only after exposure to seedling leaf tissues to high concentrations of ozone. These results are discussed in relation to the concept of a two-phase response to oxidant exposure. The first phase is at the chloroplast level and is quite sensitive to the low as well as the high concentrations of ozone; the second is at the cellular level and is relatively resistant to all but the highest ozone concentrations. 27 references, 2 tables.
Publication Date:
Jan 01, 1974
Product Type:
Journal Article
Reference Number:
EDB-86-045003
Resource Relation:
Journal Name: Can. J. Bot.; (Canada); Journal Volume: 52
Subject:
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; OXIDOREDUCTASES; ENZYME ACTIVITY; OZONE; TOXICITY; SEEDLINGS; SENSITIVITY; CHLOROPHYLL; CHLOROPLASTS; EXPERIMENTAL DATA; GLYCINE HISPIDA; LEAVES; MAIZE; BACTERIA; CARBOXYLIC ACIDS; CELL CONSTITUENTS; CEREALS; DATA; ENZYMES; GRASS; HETEROCYCLIC ACIDS; HETEROCYCLIC COMPOUNDS; INFORMATION; LEGUMINOSAE; MICROORGANISMS; NUMERICAL DATA; ORGANIC ACIDS; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; PHYTOCHROMES; PIGMENTS; PLANTS; PORPHYRINS; RHIZOBIUM; 560303* - Chemicals Metabolism & Toxicology- Plants- (-1987)
OSTI ID:
6038092
Research Organizations:
Purdue Univ., West Lafayette, IN
Country of Origin:
Canada
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: CJBOA
Submitting Site:
HEDB
Size:
Pages: 1233-1238
Announcement Date:
Feb 01, 1986

Citation Formats

Leffler, H R, and Cherry, J H. Destruction of enzymatic activities of corn and soybean leaves exposed to ozone. Canada: N. p., 1974. Web. doi:10.1139/b74-159.
Leffler, H R, & Cherry, J H. Destruction of enzymatic activities of corn and soybean leaves exposed to ozone. Canada. https://doi.org/10.1139/b74-159
Leffler, H R, and Cherry, J H. 1974. "Destruction of enzymatic activities of corn and soybean leaves exposed to ozone." Canada. https://doi.org/10.1139/b74-159.
@misc{etde_6038092,
title = {Destruction of enzymatic activities of corn and soybean leaves exposed to ozone}
author = {Leffler, H R, and Cherry, J H}
abstractNote = {Experiments were conducted to determine the effects of a single ozone exposure on selected enzymatic activities and chlorophyll contents of corn and soybean seedlings. Both nitrite reductase activity and chlorophyll content of the seedlings were found to be quite sensitive to ozonation and were seen to decrease as much as 50% after exposure to 80 parts per hundred million (pphm) ozone. After exposure to lower levels of ozone, less-pronounced decreases were observed. Nitrate reductase activity was reduced only after exposure to seedling leaf tissues to high concentrations of ozone. These results are discussed in relation to the concept of a two-phase response to oxidant exposure. The first phase is at the chloroplast level and is quite sensitive to the low as well as the high concentrations of ozone; the second is at the cellular level and is relatively resistant to all but the highest ozone concentrations. 27 references, 2 tables.}
doi = {10.1139/b74-159}
journal = []
volume = {52}
journal type = {AC}
place = {Canada}
year = {1974}
month = {Jan}
}