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Dose responses of cytokinins
Author(s) -
Nissen Per
Publication year - 1988
Publication title -
physiologia plantarum
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.351
H-Index - 146
eISSN - 1399-3054
pISSN - 0031-9317
DOI - 10.1111/j.1399-3054.1988.tb02002.x
Subject(s) - phaseolus , callus , bioassay , botany , biology , genus , genetics
Analysis of published data for the most widely used bioassays for cytokinins reveals that the dose responses are usually subsensitive, i.e. that S 90 /S 10 > 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 (S 90 /S 10 <81) for tabacco and Phaseolus Iunatus but mostly subsensitive for soybean and P. vulgaris.