Arabidopsis thaliana: a new test species for phytotoxic bioassays

Lettuce seeds (Lactuca sativa L.) and other crop species are often used in phytotoxic bioassays that are designed to detect allelochemicals. The seeds of these species are considered ideal because they are readily available, germinate rapidly and uniformly, and are routinely used in laboratories aro...

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Bibliographic Details
Published in:Journal of chemical ecology 2005-08, Vol.31 (8), p.1877-1885
Main Authors: Pennacchio, M, Jefferson, L.V, Havens, K
Format: Article
Language:English
Subjects:
allelochemicals
Animal and plant ecology
Animal, plant and microbial ecology
Applied ecology
Arabidopsis - drug effects
Arabidopsis thaliana
Autoecology
Bioassays
Biological and medical sciences
Ecotoxicology, biological effects of pollution
Flowers & plants
Fundamental and applied biological sciences. Psychology
General aspects
Germination - drug effects
Herbicides - pharmacology
Lactuca - drug effects
Lactuca sativa
Lettuce
phytotoxicity
seed germination
Seeds
Seeds - drug effects
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Summary:Lettuce seeds (Lactuca sativa L.) and other crop species are often used in phytotoxic bioassays that are designed to detect allelochemicals. The seeds of these species are considered ideal because they are readily available, germinate rapidly and uniformly, and are routinely used in laboratories around the world. Despite their common use, however, the seeds of these species are often not as sensitive or responsive to some phytotoxic chemicals as are the seeds of other species. While searching for a more sensitive test species for phytotoxic bioassays, the Columbia ecotype of Arabidopsis thaliana exhibited greater sensitivity to seven potent allelochemicals than did lettuce seeds, which, in some cases, did not respond at all to those substances. Sensitivity satisfies one of the criteria for selecting a test species for bioassays. We now report on the results of our study and offer additional reasons for using A. thaliana seeds.
ISSN:0098-0331
1573-1561
DOI:10.1007/s10886-005-5932-7