Influence of cytokinins and novel cytokinin antagonists on the senescence of detached leaves of Arabidopsis thaliana

V. S. Alexieva; Aileen R. Smith; Michael Hall; M. Somleva; E. Stanoeva; V. Lachkova; I. Sergiev; E. N. Karanov; D. Todorova

doi:10.1007/s10535-007-0079-8

Influence of cytokinins and novel cytokinin antagonists on the senescence of detached leaves of Arabidopsis thaliana

V. S. Alexieva, Aileen R. Smith, Michael Hall, M. Somleva, E. Stanoeva, V. Lachkova, I. Sergiev, E. N. Karanov, D. Todorova

Department of Life Sciences

Research output: Contribution to journal › Article › peer-review

Abstract

Cytokinins N6-benzyladenine (BA) and 1-(2-chloropyridin-4-yl)-3-phenylurea (4PU-30) delayed the senescence of detached leaves (3rd to 7th leaf node) of wild and ethylene insensitive eti5 mutant of Arabidopsis thaliana. The novel anticytokinins, structural analogues of purine and phenylurea cytokinins also affected the senescence of detached rosette leaves of A. thaliana. They diminished to a significant extent the cytokinin-induced delay of chlorophyll destruction, but without a considerable difference in their action against both types of cytokinins. These results correlated with changes observed in ribonuclease (RNase) activity.

Original language	English
Pages (from-to)	377-380
Number of pages	4
Journal	Biologia Plantarum
Volume	51
Issue number	2
DOIs	https://doi.org/10.1007/s10535-007-0079-8
Publication status	Published - 20 Mar 2007

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http://hdl.handle.net/2160/2630

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title = "Influence of cytokinins and novel cytokinin antagonists on the senescence of detached leaves of Arabidopsis thaliana",

abstract = "Cytokinins N6-benzyladenine (BA) and 1-(2-chloropyridin-4-yl)-3-phenylurea (4PU-30) delayed the senescence of detached leaves (3rd to 7th leaf node) of wild and ethylene insensitive eti5 mutant of Arabidopsis thaliana. The novel anticytokinins, structural analogues of purine and phenylurea cytokinins also affected the senescence of detached rosette leaves of A. thaliana. They diminished to a significant extent the cytokinin-induced delay of chlorophyll destruction, but without a considerable difference in their action against both types of cytokinins. These results correlated with changes observed in ribonuclease (RNase) activity.",

author = "Alexieva, {V. S.} and Smith, {Aileen R.} and Michael Hall and M. Somleva and E. Stanoeva and V. Lachkova and I. Sergiev and Karanov, {E. N.} and D. Todorova",

note = "Sergiev, I., Todorova, D., Somleva, M., Alexieva, V., Karanov, E., Stanoeva, E., Lachkova, V., Smith, A., Hall, M. (2007). Influence of cytokinins and novel cytokinin antagonists on the senescence of detached leaves of Arabidopsis thaliana. Biologia Plantarum, 51, (2), 377-380.",

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doi = "10.1007/s10535-007-0079-8",

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TY - JOUR

T1 - Influence of cytokinins and novel cytokinin antagonists on the senescence of detached leaves of Arabidopsis thaliana

AU - Alexieva, V. S.

AU - Smith, Aileen R.

AU - Hall, Michael

AU - Somleva, M.

AU - Stanoeva, E.

AU - Lachkova, V.

AU - Sergiev, I.

AU - Karanov, E. N.

AU - Todorova, D.

N1 - Sergiev, I., Todorova, D., Somleva, M., Alexieva, V., Karanov, E., Stanoeva, E., Lachkova, V., Smith, A., Hall, M. (2007). Influence of cytokinins and novel cytokinin antagonists on the senescence of detached leaves of Arabidopsis thaliana. Biologia Plantarum, 51, (2), 377-380.

PY - 2007/3/20

Y1 - 2007/3/20

N2 - Cytokinins N6-benzyladenine (BA) and 1-(2-chloropyridin-4-yl)-3-phenylurea (4PU-30) delayed the senescence of detached leaves (3rd to 7th leaf node) of wild and ethylene insensitive eti5 mutant of Arabidopsis thaliana. The novel anticytokinins, structural analogues of purine and phenylurea cytokinins also affected the senescence of detached rosette leaves of A. thaliana. They diminished to a significant extent the cytokinin-induced delay of chlorophyll destruction, but without a considerable difference in their action against both types of cytokinins. These results correlated with changes observed in ribonuclease (RNase) activity.

AB - Cytokinins N6-benzyladenine (BA) and 1-(2-chloropyridin-4-yl)-3-phenylurea (4PU-30) delayed the senescence of detached leaves (3rd to 7th leaf node) of wild and ethylene insensitive eti5 mutant of Arabidopsis thaliana. The novel anticytokinins, structural analogues of purine and phenylurea cytokinins also affected the senescence of detached rosette leaves of A. thaliana. They diminished to a significant extent the cytokinin-induced delay of chlorophyll destruction, but without a considerable difference in their action against both types of cytokinins. These results correlated with changes observed in ribonuclease (RNase) activity.

U2 - 10.1007/s10535-007-0079-8

DO - 10.1007/s10535-007-0079-8

M3 - Article

SN - 1573-8264

VL - 51

SP - 377

EP - 380

JO - Biologia Plantarum

JF - Biologia Plantarum

IS - 2

ER -

Influence of cytokinins and novel cytokinin antagonists on the senescence of detached leaves of Arabidopsis thaliana

Abstract

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