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dc.contributor.author Kulaeva, O. N.
dc.contributor.author Yakovleva, L. A.
dc.contributor.author Rakitin, V. Y.
dc.contributor.author Smith, Aileen
dc.contributor.author Hall, Michael A.
dc.contributor.author Burkhanova, E. A.
dc.contributor.author Kudryakova, N. V.
dc.date.accessioned 2009-11-20T11:43:43Z
dc.date.available 2009-11-20T11:43:43Z
dc.date.issued 2001-09-10
dc.identifier.citation Kulaeva , O N , Yakovleva , L A , Rakitin , V Y , Smith , A , Hall , M A , Burkhanova , E A & Kudryakova , N V 2001 , ' Ethylene and cytokinin in the control of senescence in detached leaves of Arabidopsis thaliana eti-5 mutant and wild-type plants ' Russian Journal of Plant Physiology , vol 48 , no. 5 , pp. 624-627 . , 10.1023/A:1016708002899 en
dc.identifier.issn 1608-3407
dc.identifier.other PURE: 129526
dc.identifier.other dspace: 2160/3571
dc.identifier.uri http://hdl.handle.net/2160/3571
dc.identifier.uri http://www.ingentaconnect.com/content/maik/rupp/2001/00000048/00000005/00361726 en
dc.description Kudryakova, N. V., Burkhanova, E. A., Rakitin, V. Y., Yakovleva, L. A., Smith, A., Hall, M. A., Kulaeva, O. N. (2001). Ethylene and cytokinin in the control of senescence in detached leaves of Arabidopsis thaliana eti-5 mutant and wild-type plants.   Russian Journal of Plant Physiology, 48, (5), 624-627. en
dc.description.abstract We studied the effects of cytokinin benzyladenine (BA) and ethylene on the senescence in the dark of detached leaves of Arabidopsis thaliana(L.) Heynh wild-type plants and theeti-5mutant, which was described in the literature as the ethylene-insensitive one. Leaf senescence was assessed from a decrease in the chlorophyll content. The content of endogenous cytokinins (zeatin and zeatin riboside) was estimated by the ELISA technique. We demonstrated that the content of endogenous cytokinins in the leaves of the three-week-old eti-5mutants exceeded that of the wild-type leaves by an order of magnitude; in the five-week-old mutants, by several times; and in the seven-week-old plants, the difference became insignificant. Due to the excess of endogenous cytokinins in the three–five-week-old mutant leaves, their senescence in the dark was retarded and exogenous cytokinin affected these leaves to a lesser extent. The seven-week-old mutant and the wild-type leaves, which contained practically similar amounts of endogenous cytokinins, did not differ in these indices. Thus, the level of endogenous cytokinins determined the rate of senescence and the leaf response to cytokinin treatment. Ethylene accelerated the senescence of detached wild-type leaves. Ethylene action increased with increasing its concentration from 0.1 to 100 l/l. BA (10^–6M) suppressed ethylene action. Similar data were obtained for the eti-5 mutant leaves. We therefore suggest that the mutant leaves comprised the pathways of the ethylene signal reception and transduction, which provided for the acceleration of their senescence. en
dc.format.extent 4 en
dc.language.iso eng
dc.relation.ispartof Russian Journal of Plant Physiology en
dc.subject Arabidopsis thaliana en
dc.subject eti-5 mutant en
dc.subject senescence en
dc.subject cytokinins en
dc.subject ethylene en
dc.title Ethylene and cytokinin in the control of senescence in detached leaves of Arabidopsis thaliana eti-5 mutant and wild-type plants en
dc.type Text en
dc.type.publicationtype Article (Journal) en
dc.identifier.doi http://dx.doi.org/10.1023/A:1016708002899
dc.contributor.institution Institute of Biological, Environmental and Rural Sciences en
dc.description.status Peer reviewed en


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