Effects of three phenolic compounds on Lemna gibba G3

Lemna gibba L. G3 (duckweed) was used as a bioassay organism to test the allelochemical effects of salicylic acid (SA), ferulic acid (FA), and umbelliferone (UM). Growth rate (K), dry weight (DW) and total chlorophyll (CHL) production were measured after seven days of growth. At concentrations of 50...

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Bibliographic Details
Published in:Journal of chemical ecology 1988-03, Vol.14 (3), p.845-853
Main Authors: RAMIREZ TORO, G. I, LEATHER, G. R, EINHELLIG, F. A
Format: Article
Language:English
Subjects:
Animal and plant ecology
Animal, plant and microbial ecology
Autoecology
Biological and medical sciences
Freshwater
Fundamental and applied biological sciences. Psychology
Lemna gibba
Plants and fungi
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Summary:Lemna gibba L. G3 (duckweed) was used as a bioassay organism to test the allelochemical effects of salicylic acid (SA), ferulic acid (FA), and umbelliferone (UM). Growth rate (K), dry weight (DW) and total chlorophyll (CHL) production were measured after seven days of growth. At concentrations of 50 mu M and greater, SA caused inhibition of K and DW production in L. gibba G3, while the threshold for CHL reduction was 20 mu M. FA inhibited the DW and CHL production at 100 mu M when the compound was autoclaved in E medium containing sucrose. Treatments of UM were least toxic with an inhibition threshold of 500 mu M for K and DW production in medium without sucrose. UM did not reduce CHL production until 750 mu M.
ISSN:0098-0331
1573-1561
DOI:10.1007/BF01018778