Interspecific diversity in root antioxidative enzyme activities reflect root turnover strategies and preferred habitats in wetland graminoids

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dc.contributor.authorYucel, Cagdas Kera
dc.contributor.authorBor, Melike
dc.contributor.authorRyser, Peter
dc.date.accessioned2019-10-27T22:16:38Z
dc.date.available2019-10-27T22:16:38Z
dc.date.issued2014
dc.departmentEge Üniversitesien_US
dc.description.abstractAntioxidant enzymes protect cells against oxidative stress and are associated with stress tolerance and longevity. In animals, variation in their activities has been shown to relate to species ecology, but in plants, comparative studies with wild species are rare. We investigated activities of five antioxidant enzymes - ascorbate peroxidase (APX), catalase (CAT), glutathione reductase (GR), peroxidase (POX), and superoxide dismutase (SOD) - in roots of four perennial graminoid wetland species over a growing season to find out whether differences in root turnover or habitat preferences would be associated with variation in seasonal patterns of antioxidant enzyme activities. The investigated species differ in their root turnover strategies (fine roots senesce in the fall or fine roots survive the winter) and habitat preferences (nutrient-poor vs. productive wetlands). Roots were collected both in the field and from garden-grown plants. Antioxidant enzyme activities were higher and lipid peroxidation rates lower in species with annual root systems, and for species of the nutrient-poor wetland, compared with perennial roots and species of productive wetlands, respectively. There was variation in the activities of individual antioxidant enzymes, but discriminant analyses with all enzymes revealed a clear picture, indicating consistent associations of antioxidant enzyme activities with the type of root turnover strategy and with the preferred habitat. We conclude that antioxidant enzyme activities in plant roots are associated with the species' ecological strategies and can be used as traits for the characterization of the species' position along plant economics spectrum.en_US
dc.description.sponsorshipDiscovery Grant of the Natural Sciences and Engineering Research Council of Canada [249689]; Ege University Research FoundationEge University [2011 FEN 079]en_US
dc.description.sponsorshipThe research was financially supported by a Discovery Grant of the Natural Sciences and Engineering Research Council of Canada (#249689) and by Ege University Research Foundation (2011 FEN 079).en_US
dc.identifier.doi10.1002/ece3.992en_US
dc.identifier.endpage840en_US
dc.identifier.issn2045-7758
dc.identifier.issue6en_US
dc.identifier.pmid24683465en_US
dc.identifier.scopusqualityQ1en_US
dc.identifier.startpage831en_US
dc.identifier.urihttps://doi.org/10.1002/ece3.992
dc.identifier.urihttps://hdl.handle.net/11454/50302
dc.identifier.volume4en_US
dc.identifier.wosWOS:000332902900015en_US
dc.identifier.wosqualityQ2en_US
dc.indekslendigikaynakWeb of Scienceen_US
dc.indekslendigikaynakScopusen_US
dc.indekslendigikaynakPubMeden_US
dc.language.isoenen_US
dc.publisherWiley-Blackwellen_US
dc.relation.ispartofEcology and Evolutionen_US
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectPlant ecological strategiesen_US
dc.subjectplant economics spectrumen_US
dc.subjectplant traitsen_US
dc.subjectroot senescenceen_US
dc.titleInterspecific diversity in root antioxidative enzyme activities reflect root turnover strategies and preferred habitats in wetland graminoidsen_US
dc.typeArticleen_US

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