Cytokinin oxidase/dehydrogenase (CKX) activity in wild and ethylene-insensitive mutant eti5 type of Arabidopsis thaliana (L.) Heynh plants and the effect of cytokinin N-1-(2-chloro-4-pyridyl)-N-2phenylurea on enzymatic activity and leaf morphology

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dc.contributor.author Todorova, Dessislava
dc.contributor.author Vaseva-Gemisheva, Irina
dc.contributor.author Petrov, Petar
dc.contributor.author Stoynova-Bakalova, Ekateria
dc.contributor.author Alexieva, Vera
dc.contributor.author Karanov, Emanuil
dc.contributor.author Smith, Aileen R.
dc.contributor.author Hall, Michael A.
dc.date.accessioned 2009-08-05T08:19:46Z
dc.date.available 2009-08-05T08:19:46Z
dc.date.issued 2007-06-19
dc.identifier.citation Todorova , D , Vaseva-Gemisheva , I , Petrov , P , Stoynova-Bakalova , E , Alexieva , V , Karanov , E , Smith , A R & Hall , M A 2007 , ' Cytokinin oxidase/dehydrogenase (CKX) activity in wild and ethylene-insensitive mutant eti5 type of Arabidopsis thaliana (L.) Heynh plants and the effect of cytokinin N-1-(2-chloro-4-pyridyl)-N-2phenylurea on enzymatic activity and leaf morphology ' Acta Physiologiae Plantarum , vol 28 , no. 6 , pp. 613-617 . , 10.1007/s11738-006-0057-3 en
dc.identifier.issn 1861-1664
dc.identifier.other PURE: 114274
dc.identifier.other dspace: 2160/2764
dc.identifier.uri http://hdl.handle.net/2160/2764
dc.description Todorova, D., Vaseva-Gemisheva, I., Petrov, P., Stoynova-Bakalova, E., Alexieva, V., Karanov, E., Smith, A., Hall, M. (2006). Cytokinin oxidase/dehydrogenase (CKX) activity in wild and ethylene-insensitive mutant eti5 type of Arabidopsis thaliana (L.) Heynh plants and the effect of cytokinin N-1-(2-chloro-4-pyridyl)-N-2phenylurea on enzymatic activity and leaf morphology. Acta Physiologiae Plantarum, 28, (6), 613-617. en
dc.description.abstract The specific activity of cytokinin oxidase/dehydrogenase (EC 1.5.99.12) (CKX) was determined in leaves of wild type (wt) and ethylene-insensitive mutant (eti5) of Arabidopsis thaliana (L.) Heynh plants. Comparative studies showed that this mutation has lower basal CKX activity than wt. Application of 4PU-30 (N1-(2-chloro-4-pyridyl)-N2-phenylurea) resulted in decreased CKX activity in both wt and mutant plants. The treatment increased leaf blade thickness and the volume of chlorophyll-containing cells per unit leaf area in wt but these changes were not observed in the eti5 mutant. The reduction in chlorophyll “a” and “b”, as well as in carotenoids content in the treated wt tissues resulting from altered leaf morphology was not detected in eti5 plants. en
dc.format.extent 5 en
dc.language.iso eng
dc.relation.ispartof Acta Physiologiae Plantarum en
dc.title Cytokinin oxidase/dehydrogenase (CKX) activity in wild and ethylene-insensitive mutant eti5 type of Arabidopsis thaliana (L.) Heynh plants and the effect of cytokinin N-1-(2-chloro-4-pyridyl)-N-2phenylurea on enzymatic activity and leaf morphology en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.identifier.doi http://dx.doi.org/10.1007/s11738-006-0057-3
dc.contributor.institution Institute of Biological, Environmental and Rural Sciences en
dc.description.status Peer reviewed en


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