Stress ethylene evolution of bean plants—a parameter indicating ozone pollution

Bean plants treated with varying ozone concentrations for varying exposure times showed increased rates of ethylene production compared with controls. A standard method was worked out in which primary leaves of bean plants were encapsulated in 250 ml Erlenmeyer flasks after exposure. The amount of e...

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Bibliographic Details
Published in:Atmospheric environment 1981, Vol.15 (3), p.391-395
Main Authors: Stan, Hans-Jürgen, Schicker, Sieglinde, Kassner, Helmut
Format: Article
Language:English
Subjects:
environmental degradation
pollution
waste management
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Summary:Bean plants treated with varying ozone concentrations for varying exposure times showed increased rates of ethylene production compared with controls. A standard method was worked out in which primary leaves of bean plants were encapsulated in 250 ml Erlenmeyer flasks after exposure. The amount of ethylene produced was determined by gas chromatography after about 24 h. The ‘no effect level’ of the bean plant was found to be 100 ppb ozone because there was no significant stress ethylene production even after 12 h fumigation. A treatment with 150 ppb ozone induced the beginning of stress ethylene production after about 8 h. With higher ozone concentrations shorter exposure times are necessary to induce a first response. Stress ethylene production correlates better with ozone concentration than with exposure time comparing the same products of concentration and time.
ISSN:0004-6981
1352-2310
DOI:10.1016/0004-6981(81)90043-3