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THE OCCURRENCE OF HORMESIS IN PLANTS AND ALGAE

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dc.contributor.authorCedergreen, Nina
dc.contributor.authorStreibig, Jens C
dc.contributor.authorKudsk, Per
dc.contributor.authorMathiassen, Solvejg K
dc.contributor.authorDuke, Stephen O
dc.contributor.departmentRoyal Veterinary and Agricultural University (KVL), Taastrup, Denmark
dc.contributor.departmentRoyal Veterinary and Agricultural University (KVL), Taastrup, Denmark
dc.contributor.departmentDanish Institute of Agricultural Sciences, Slagelse, Denmark
dc.contributor.departmentDanish Institute of Agricultural Sciences, Slagelse, Denmark
dc.contributor.departmentUSDA, University of Mississippi, University, MS, USA
dc.date2023-09-23T09:46:34.000
dc.date.accessioned2024-04-26T16:21:33Z
dc.date.available2014-07-28T00:00:00Z
dc.date.issued2007-06-01
dc.description.abstractThis paper evaluated the frequency, magnitude and dose/concentration range of hormesis in four species: The aquatic plant Lemna minor, the micro-alga Pseudokirchneriella subcapitata and the two terrestrial plants Tripleurospermum inodorum and Stellaria media exposed to nine herbicides and one fungicide and binary mixtures thereof. In total 687 dose-response curves were included in the database. The study showed that both the frequency and the magnitude of the hormetic response depended on the endpoint being measured. Dry weight at harvest showed a higher frequency and a larger hormetic response compared to relative growth rates. Evaluating hormesis for relative growth rates for all species showed that 25% to 76% of the curves for each species had treatments above 105% of the control. Fitting the data with a dose-response model including a parameter for hormesis showed that the average growth increase ranged from 9±1% to 16±16% of the control growth rate, while if measured on a dry weight basis the response increase was 38±13% and 43±23% for the two terrestrial species. Hormesis was found in >70% of the curves with the herbicides glyphosate and metsulfuron-methyl, and in >50% of the curves for acifluorfen and terbuthylazine. The concentration ranges of the hormetic part of the dose-response curves corresponded well with literature values.
dc.identifier.urihttps://hdl.handle.net/20.500.14394/20505
dc.relation.urlhttps://scholarworks.umass.edu/cgi/viewcontent.cgi?article=1327&context=dose_response&unstamped=1
dc.source.statuspublished
dc.subjectbiphasic dose-response curves
dc.subjectherbicides
dc.subjectplants
dc.subjectgrowth
dc.subjectendpoint
dc.titleTHE OCCURRENCE OF HORMESIS IN PLANTS AND ALGAE
dc.title.alternativeHormesis in plants and algae
dc.typearticle
dc.typearticle
digcom.contributor.authorCedergreen, Nina
digcom.contributor.authorStreibig, Jens C
digcom.contributor.authorKudsk, Per
digcom.contributor.authorMathiassen, Solvejg K
digcom.contributor.authorDuke, Stephen O
digcom.date.embargo2014-07-28T00:00:00-07:00
digcom.identifierdose_response/vol5/iss2/8
digcom.identifier.contextkey5835699
digcom.identifier.submissionpathdose_response/vol5/iss2/8
dspace.entity.typePublication
relation.isJournalIssueOfPublicationb75b860f-401f-455a-a3df-746160ada263
relation.isJournalIssueOfPublication.latestForDiscoveryb75b860f-401f-455a-a3df-746160ada263
relation.isJournalOfPublication9864db23-b4cf-491b-8088-4b9c9fb909d5
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