Cytokinin oxidase/dehydrogenase inhibitors: outlook for selectivity and high efficiency (Record no. 53560)

MARC details
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fixed length control field 02530nam a2200361Ia 4500
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control field MX-MdCICY
005 - DATE AND TIME OF LATEST TRANSACTION
control field 20250625162430.0
040 ## - CATALOGING SOURCE
Transcribing agency CICY
090 ## - LOCALLY ASSIGNED LC-TYPE CALL NUMBER (OCLC); LOCAL CALL NUMBER (RLIN)
Classification number (OCLC) (R) ; Classification number, CALL (RLIN) (NR) B-19431
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245 10 - TITLE STATEMENT
Title Cytokinin oxidase/dehydrogenase inhibitors: outlook for selectivity and high efficiency
490 0# - SERIES STATEMENT
Volume/sequential designation Journal of Experimental Botany, 73(14), p.4806-4817, 2022
520 3# - SUMMARY, ETC.
Summary, etc. Inhibitors of cytokinin oxidase/dehydrogenase (CKX)reduce the degradation of cytokinins in plants, and this effect can be exploited in agriculture and in plant tissue culture. In this study, we examine the structure-activity relationship of two series of CKX inhibitors based on diphenylurea. The compounds of Series I were derived from the recently published CKX inhibitors 3TFM-2HM and 3TFM-2HE, and we identified key substituents with increased selectivity for maize ZmCKX1 and ZmCKX4a over AtCKX2 from Arabidopsis. Series II contained compounds that further exceled in CKX inhibitory activity as well as in the ease of their synthesis. The best inhibitors exhibited half-maximal inhibitory concentration (IC50)values in low nanomolar ranges with ZmCKX1 and especially with ZmCKX4a, which is generally more resistant to inhibition. The activity of the key compounds was verified in tobacco and lobelia leaf-disk assays, where N6-isopentenyladenine was protected from degradation and promoted shoot regeneration. All the prepared compounds were further tested for toxicity against Caenorhabditis elegans, and the assays revealed clear differences in toxicity between compounds with and without a hydroxyalkyl group. In a broader perspective, this work increases our understanding of CKX inhibition and provides a more extensive portfolio of compounds suitable for agricultural and biotechnological research.
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element AGRICULTURE
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element BIOTECHNOLOGY
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element CAENORHABDITIS ELEGANS
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element CYTOKININ
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element CKX INHIBITOR
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element CYTOKININ OXIDASE/DEHYDROGENASE
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element DIPHENYLUREA
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element PLANT HORMONES
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element PLANT TISSUE CULTURE
650 14 - SUBJECT ADDED ENTRY--TOPICAL TERM
Topical term or geographic name entry element NEMATODES
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Nisler, J.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Pekná, Z.
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Personal name Koncitíková, R.
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Personal name Klimes, P.
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Personal name Kadlecová, A.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Murvanidze, N.
700 12 - ADDED ENTRY--PERSONAL NAME
Personal name Strnad, M.
856 40 - ELECTRONIC LOCATION AND ACCESS
Uniform Resource Identifier <a href="https://drive.google.com/file/d/1KgDRxOi86TvXEZnZ5rs0mC9YqfybB_Ic/view?usp=drivesdk">https://drive.google.com/file/d/1KgDRxOi86TvXEZnZ5rs0mC9YqfybB_Ic/view?usp=drivesdk</a>
Public note Para ver el documento ingresa a Google con tu cuenta: @cicy.edu.mx
942 ## - ADDED ENTRY ELEMENTS (KOHA)
Source of classification or shelving scheme Clasificación local
Koha item type Documentos solicitados
Holdings
Lost status Source of classification or shelving scheme Damaged status Not for loan Collection Home library Current library Shelving location Date acquired Total checkouts Full call number Date last seen Price effective from Koha item type
  Clasificación local     Ref1 CICY CICY Documento préstamo interbibliotecario 25.06.2025   B-19431 25.06.2025 25.06.2025 Documentos solicitados