Abstract
Since the discovery of cytokinins (Miller et al 1955) it has become clear that, in addition to promoting plant cells to divide in culture, this class of plant hormones influences a wide range of events during growth and development (Taiz and Zeiger 1998). For example, cytokinins inhibit leaf senescence, root elongation and lateral root initiation. They are involved in promoting leaf and cotyledon expansion, auxiliary meristem growth, nutrient mobilisation, root hair growth and stomatal opening. Cytokinins do not function in isolation of other plant hormones. Their stimulation of cell division in tissue culture requires the presence of auxin, and it is evident that in many responses cytokinins act both in synergy and antagonism with auxin, ethylene and gibberellin. Similarly, cytokinin and light signalling pathways interact in the regulation of chloroplast development and anthocyanin biosynthesis. There also appear to be strong interactions between cytokinin, nitrate and sugar signals. The importance of this class of hormones in plant growth and development has prompted many studies of their mechanism of action (see recent reviews of Hare and van Stadon 1997, Schmülling et al 1997, Brault and Maldiney 1999) and these have led to the identification of potential components of cytokinin signalling pathways and targets of them. In this review I will consider the progress that has been made towards the identification of cytokinin binding proteins and genes encoding receptors that are implicated in cytokinin signalling and discuss whether or not any of these may be cytokinin receptors.
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References
Bleecker, A.B., and Schaller, E.G., 1996, The mechanism of ethylene perception.PlantPhysiol.111:653–660.
Brandstatter, I., and Kieber, J.J., 1998, Two genes with similarity to bacterial response regulators are rapidly and specifically induced by cytokinin inArabidopsis. Plant Cell 10: 1009–1019.
Brault, M., and Maldiney, R., 1999, Mechanisms of cytokinin action.Plant Physiol. Biochem.37: 403–412.
Brault, M., Caiveau, O., Pedron, J., Maldiney, R., Sotta, B., and Miginiac, E., 1999, Detection of membrane-bound cytokinin binding proteins inArabidopsis thaliana cells.Eur. J.Biochem.260:512–519.
Brinegar, A.C., 1994, Cytokinin binding proteins and receptors. InCytokinins: Chemistry,Activity, and Function (D.W.S. Mok and M.C. Mok, eds), CRC Press, Boca Raton, pp. 217–232.
Chang, C., and Stewart, R.C., 1998, The two component system. Regulation of diverse signalling pathways in prokaryotes and eukaryotes.Plant Physiol.117: 723–731.
Deikman, J., 1997, Elucidating cytokinin response mechanisms using mutants.Plant GrowthRegul.23: 33–40.
Gardner; G., Sussman, M., and Kende, H., 1978, In vitro cytokinin binding to a particulate cell fraction from protonemaof Funaria hygrometrica. Planta 143: 67–73.
Gaudino, R.J., and Pikaard, C.S., 1997, Cytokinin induction of RNA polymerase I transcription inArabidopsis thaliana.J. Biol. Chem.272: 6799–6804.
Gonneau, M., Mornet, R., and Laloue, M., 1998, ANicotiana plumbaginifolia protein labeled with an azido cytokinin agonist is a glutathione S-transferase.Physiol. Plant.103: 114–124.
Hare, P.D., and van Staden, J., 1997, The molecular basis of cytokinin action.Plant GrowthRegul.23:41–78.
Hooley, R., 1999, A role for G proteins in plant hormone signalling?Plant Physiol. Biochem.37: 393–402.
Kakimoto, T., 1996, CKI1, a histidine kinase homolog implicated in cytokinin signal transduction.Science 274: 982–985.
Kulaeva, O.N., Karavaiko, N.N., Selivankina, S.Y., Zemlyachenko, Y.V., and Shipilova, S.-V., 1995, Receptor oftrans-zeatin involved in transcription activation by cytokinins.FEBS Lett.366:26–28.
Kobayashi, K., Zbell, B., and Reinert, J., 1981, A high affinity binding site for cytokinin to a particulate fraction in carrot suspension cells.Protoplasma 106: 145–155.
Miller, CO., Skoog, F., von Saltza, M.H., and Strong, M., 1955, Kinetin, a cell devision factor from deoxyribonucleic acid.J. Am. Chem. Soc. 11:1329–1334.
Mitsui, S., Wakasugi, T., and Sugiura, M., 1996, A cytokinin-binding protein complex from tobacco leaves. The 57 kDa subunit has high homology to S-adenosyl-L.homocysteine hydrolase.Plant Growth Regul.18: 39–43.
Mitsui, S., Wakasugi, T., Hanano, S., and Sugiura, M., 1997, Localization of a cytokininbinding protein CBP57/S-adenosyl-L-homocysteine hydrolase in a tobacco root.J. PlantPhysiol.150: 752–754.
Plakidou-Dymock, S., Dymock, D., and Hooley, R., 1998, A higher plant seven transmembrane receptor that influences sensitivity to cytokinins.Curr.Biol.8: 315–324.
Prinsen, E., Kaminek, M., and van Onckelen, H.A., 1997, Cytokinin biosynthesis: a black box?Plant Growth Regul.23: 3–15.
Sakakibara, H., Suzuki, M., Takei, K., Deji, A., Taniguchi, M., and Sugiyama, T., 1998, A response-regulator homologue possibly involved in nitrogen signal transduction mediated by cytokinin in maize.Plant J.14: 337–344.
Schmülling, T., Schafer, S., and Romanov, G., 1997, Cytokinins as regulators of gene expression.Physiol. Plant.100: 505–519.
Schumaker, K.S., and Gizinski, M.J., 1996, G proteins regulate dihydropyridine binding to moss plasma membranes.J. Biol. Chem.271: 21292–21296.
Silverman, F.P., Assiamah, A.A., and Bush, D.S., 1998, Membrane transport and cytokinin action in root hairs ofMedicago sativa. Planta 205: 23–31.
Strnad, M., 1997, The aromatic cytokinins.Physiol. Plant.101: 674–688.
Sussman, M., and Kende, H., 1978, In vitro cytokinin binding to a particulate fraction of tobacco cells.Planta 140: 251–259.
Taiz, L., and Zeiger, E., 1998,Plant Physiol.,Second Edition. Sinauer Associates, Inc, Sunderland, MA, USA.
Taniguchi, M., Kiba, T., Sakakibara, H., Ueguchi, C., Mizuno, T., and Sugiyama, T., 1998, Expression ofArabidopsis response regulator homologs is induced by cytokinins and nitrate.FEBS Lett.429: 259–262.
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Hooley, R. (2001). Progress Towards the Identification of Cytokinin Receptors. In: Sopory, S.K., Oelmüller, R., Maheshwari, S.C. (eds) Signal Transduction in Plants. Springer, Boston, MA. https://doi.org/10.1007/978-1-4615-1365-0_19
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DOI: https://doi.org/10.1007/978-1-4615-1365-0_19
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