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Influence of sublethal concentrations of sulfur dioxide on morphology, growth, and product yield of the duckweed Lemna minor L

Journal Article:

Abstract

There was no disturbance in the growth of Lemna minor L. with a SO/sub 2/ concentration of up to 0.3 ppM in air. A SO/sub 2/ concentration of 0.6 ppM caused an initial depression of the growth rate of about 25 percent, but in the course of adaptation, the rate rose to the values of the control. The average dry weight per frond was not influenced by the SO/sub 2/ fumigation. The initial sporadic appearance of chloroses by fumigation with 0.6 ppM SO/sub 2/ was considered a sign of the proximate toxicity limit for Lemna minor L. With 0.15 ppM SO/sub 2/ in air, the size of the fronds was reduced. The average surface of the fronds was diminished by 0.3 ppM SO/sub 2/ for about 16 percent as compared with the control plants. The protein remained quantitatively unafffected up to a SO/sub 2/ concentration of 0.6 ppM. As a qualitative influence of SO/sub 2/, the nitrogen content of the proteins remained constant, but the sulfur content of the proteins increased. Under 0.3 and 0.6 ppM SO/sub 2/, the starch content decreased immediately by 20 to 30 percent, under 0.15 ppM SO/sub 2/ the decrease reached the same level after  More>>
Publication Date:
Jan 01, 1976
Product Type:
Journal Article
Reference Number:
EDB-77-070669
Resource Relation:
Journal Name: Oecologia (Berlin); (Germany, Federal Republic of); Journal Volume: 23:3
Subject:
63 RADIATION, THERMAL, AND OTHER ENVIRON. POLLUTANT EFFECTS ON LIVING ORGS. AND BIOL. MAT.; 54 ENVIRONMENTAL SCIENCES; AIR POLLUTION; SULFUR DIOXIDE; BIOLOGICAL EFFECTS; CHLOROPHYLL; ELEMENTS; INHIBITION; MORPHOLOGICAL CHANGES; NITROGEN; PLANT GROWTH; PLANTS; PRODUCTIVITY; QUANTITY RATIO; STARCH; SULFUR; TOXICITY; BIOMASS; CARBOHYDRATES; CARBOXYLIC ACIDS; CHALCOGENIDES; CRYOGENIC FLUIDS; ENERGY SOURCES; FLUIDS; GROWTH; HETEROCYCLIC ACIDS; HETEROCYCLIC COMPOUNDS; NONMETALS; ORGANIC ACIDS; ORGANIC COMPOUNDS; ORGANIC NITROGEN COMPOUNDS; OXIDES; OXYGEN COMPOUNDS; PHYTOCHROMES; PIGMENTS; POLLUTION; POLYSACCHARIDES; PORPHYRINS; REAGENTS; RENEWABLE ENERGY SOURCES; SACCHARIDES; SULFUR COMPOUNDS; SULFUR OXIDES; 560303* - Chemicals Metabolism & Toxicology- Plants- (-1987); 520200 - Environment, Aquatic- Chemicals Monitoring & Transport- (-1989)
OSTI ID:
7312448
Research Organizations:
Univ., Bern
Country of Origin:
Germany
Language:
English
Other Identifying Numbers:
Journal ID: CODEN: OECOB
Submitting Site:
TIC
Size:
Pages: 201-209
Announcement Date:
May 01, 1977

Journal Article:

Citation Formats

Fankhauser, H, Brunold, C, and Erismann, K H. Influence of sublethal concentrations of sulfur dioxide on morphology, growth, and product yield of the duckweed Lemna minor L. Germany: N. p., 1976. Web.
Fankhauser, H, Brunold, C, & Erismann, K H. Influence of sublethal concentrations of sulfur dioxide on morphology, growth, and product yield of the duckweed Lemna minor L. Germany.
Fankhauser, H, Brunold, C, and Erismann, K H. 1976. "Influence of sublethal concentrations of sulfur dioxide on morphology, growth, and product yield of the duckweed Lemna minor L." Germany.
@misc{etde_7312448,
title = {Influence of sublethal concentrations of sulfur dioxide on morphology, growth, and product yield of the duckweed Lemna minor L}
author = {Fankhauser, H, Brunold, C, and Erismann, K H}
abstractNote = {There was no disturbance in the growth of Lemna minor L. with a SO/sub 2/ concentration of up to 0.3 ppM in air. A SO/sub 2/ concentration of 0.6 ppM caused an initial depression of the growth rate of about 25 percent, but in the course of adaptation, the rate rose to the values of the control. The average dry weight per frond was not influenced by the SO/sub 2/ fumigation. The initial sporadic appearance of chloroses by fumigation with 0.6 ppM SO/sub 2/ was considered a sign of the proximate toxicity limit for Lemna minor L. With 0.15 ppM SO/sub 2/ in air, the size of the fronds was reduced. The average surface of the fronds was diminished by 0.3 ppM SO/sub 2/ for about 16 percent as compared with the control plants. The protein remained quantitatively unafffected up to a SO/sub 2/ concentration of 0.6 ppM. As a qualitative influence of SO/sub 2/, the nitrogen content of the proteins remained constant, but the sulfur content of the proteins increased. Under 0.3 and 0.6 ppM SO/sub 2/, the starch content decreased immediately by 20 to 30 percent, under 0.15 ppM SO/sub 2/ the decrease reached the same level after a longer time than in the case of the higher concentrations. The SO/sub 2/ concentrations up to 0.6 ppM had no effect on chlorophyll concentration. The contents of C, N, H, P, K, Na, Ca, Mg, Mn, and Fe were not affected by SO/sub 2/ fumigation. It is concluded that SO/sub 2/ may have some effect on product yield, even under low concentrations, without provoking acute damage; the plant is able to adapt by regulation of its metabolism, and enters a new steady state.}
journal = {Oecologia (Berlin); (Germany, Federal Republic of)}
volume = {23:3}
journal type = {AC}
place = {Germany}
year = {1976}
month = {Jan}
}