Germin-like oxalate oxidase activity increase in auxin-treated wheat coleoptiles

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dc.contributor.authorÇalışkan, Mahmut
dc.contributor.authorCuming, Andrew C.
dc.date.accessioned2019-07-16T15:47:31Z
dc.date.available2019-07-16T15:47:31Z
dc.date.issued2000
dc.departmentHatay Mustafa Kemal Üniversitesien_US
dc.description.abstractOxalic acid or more commonly its salts, oxalates, are widely distributed throughout the plant kingdom. Oxalic acid is generally considered an inert product of metabolism and its accumulation is toxic to tissues. Therefore, the enzymes degrading oxalic acid have received considerable attention. Oxalate oxidase is an oxidoreductase which degrades oxalate into $CO_2$ and $H_2O_2$ . Recently, oxalate oxidase was shown to have high amino acid homology with germin proteins and at the same time cereal germin proteins were shown to have oxalate oxidase activity. Germin gene expression was shown to be auxin responsive. It was well demonstrated that coleoptile cells underwent extensive elongation upon auxin treatment. In the current study, it was shown that during auxin-induced wheat coleoptile elongation there was an increase in the activity of germin-like oxalate oxidase. This activity which produce $H_2O_2$ may restrict cell elongation by mediating cross-linking of cell wall polymers.en_US
dc.description.abstractOxalic acid or more commonly its salts, oxalates, are widely distributed throughout the plant kingdom. Oxalic acid is generally considered an inert product of metabolism and its accumulation is toxic to tissues. Therefore, the enzymes degrading oxalic acid have received considerable attention. Oxalate oxidase is an oxidoreductase which degrades oxalate into $CO_2$ and $H_2O_2$ . Recently, oxalate oxidase was shown to have high amino acid homology with germin proteins and at the same time cereal germin proteins were shown to have oxalate oxidase activity. Germin gene expression was shown to be auxin responsive. It was well demonstrated that coleoptile cells underwent extensive elongation upon auxin treatment. In the current study, it was shown that during auxin-induced wheat coleoptile elongation there was an increase in the activity of germin-like oxalate oxidase. This activity which produce $H_2O_2$ may restrict cell elongation by mediating cross-linking of cell wall polymers.en_US
dc.identifier.endpage335en_US
dc.identifier.issn1300-008x
dc.identifier.issue6en_US
dc.identifier.startpage329en_US
dc.identifier.urihttps://hdl.handle.net/20.500.12483/605
dc.identifier.volume24en_US
dc.indekslendigikaynakTR-Dizinen_US
dc.language.isoenen_US
dc.relation.ispartofTurkish Journal of Botanyen_US
dc.relation.publicationcategoryDiğeren_US]
dc.rightsinfo:eu-repo/semantics/openAccessen_US
dc.subjectBiyolojien_US
dc.titleGermin-like oxalate oxidase activity increase in auxin-treated wheat coleoptilesen_US
dc.title.alternativeOksin germin-benzeri okzalat oksidaz aktivitesini buğday koleoptillerinde arttırıren_US
dc.typeOtheren_US

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