Effect of substituents at the 9-position on cytokinin activity

Fox, Joan E.B.; Sood, Chander K.; McChesney, James D.

doi:10.1016/0031-9422(73)80362-0

Cited by 15 publications

(1 citation statement)

References 6 publications

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“…Dose-response curves for the tobacco assay are also remarkably steep, or ultrasensitive, as evidenced by the S9fl/S,o ratios, which are considerably lower than the ratio of 81 for a Mok et al 1982 (as above) (as above) Fig. 1, Fox et al 1973Fig. 1, Van Staden 1973Fig.…”

Section: Callus Growthmentioning

confidence: 85%

Dose responses of cytokinins

Nissen

1988

Physiologia Plantarum

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Analysis of published data for the most widely used bioassays for cytokinins reveals that the dose responses are usually subsensitive, i.e. that S90/S10> 81. The data are. in general, insufficiently detailed and/or precise for the kinetics (cooperative, multiphasic or more complex) of the subsensitive responses to be determined. Genus‐and species‐specific differences in response type were found for callus growth, where the responses are ultrasensitive (S90/S10<81) for tabacco and Phaseolus Iunatus but mostly subsensitive for soybean and P. vulgaris.

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Section: Callus Growthmentioning

confidence: 85%

Dose responses of cytokinins

Nissen

1988

Physiologia Plantarum

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Natürliche und synthetische Pflanzenwachstumsregulatoren

Draber¹

1977

Chemie Der Pflanzenschutz- Und Schädlingsbekämpfungsmittel

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Benzyladenine and derivatives-their significance and interconversion in plants

Staden

Crouch

1996

Plant Growth Regul

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Recently benzyladenine has been isolated as a natural cytokinin from a number of plants. The natural occurrence of this cytokinin will change the attitude with which physiologists view this hormone. This review attempts to put into context what is known about this cytokinin and its derivatives and to compare and contrast its metabolism and the function and physiological action of its various metabolites. Nothing is known about the biosynthesis of benzyladenine. Its structure would suggest that its biosynthetic pathway may differ considerably from that of zeatin and iso-pentenyladenine. Abbreviations: Ade = adenine; Ado = adenosine; BA = benzyladenine; [9R]BA = BA ribonucleoside; [9R-MP]BA = BA nucleotide; [9R-DP]BA = BA dinucleotide; [9R-TP]BA = BA trinucleotide; [3G]BA = BA 3 glucoside; [7G]BA = BA 7 glucoside; [BG]BA = BA 9 glucoside; [9R-G]BA = BA 9-ribosylglucoside; [9Ala]BA = BA alanine-conjugate; (20H)BA = BA ortho-OH; (20H)[9R]BA = BA ortho-OH-riboside; KN = kinetin; [9R]KN = KN ribonucleoside; DHZ = dihydrozeatin; Z = trans-zeatin; [9R]Z = zeatin ribonucleoside; [7G]Z = zeatin-7-glucoside; [9G]Z = zeatin-9-glucoside; [9Ala]Z = zeatin alanine-conjugate; (OG)[9R]Z = 0-glucoside of zeatin ribonucleoside; [9R-MP]Z = zeatin nucleotide; iP = iso-pentenyladenine; [9R]iP = iP ribonucleoside.

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Effect of substituents at the 9-position on cytokinin activity

Cited by 15 publications

References 6 publications

Dose responses of cytokinins

Dose responses of cytokinins

Natürliche und synthetische Pflanzenwachstumsregulatoren

Benzyladenine and derivatives-their significance and interconversion in plants

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