Summary
Improved in vitro tissue culture systems are needed to facilitate the application of recombinant DNA technology to the improvement of sugar beet germplasm. The effects of N 6-benzyladenine (BA) and thidiazuron (TDZ) pretreatment on adventitious shoot and somatic embryogenesis regeneration were evaluated in a range of sugar beet breeding lines and commercial varieties. Petiole explants showed higher frequencies of direct adventitious shoot formation and produced more shoots per explant than leaf lamina explants. TDZ was more effective than BA for the promotion of shoot formation. The optimal TDZ concentrations were 2.3–4.6 μM for the induction of adventitious shoot regeneration. Direct somatic embryogenesis from intact seedlings could be induced by either BA or TDZ. TDZ-induced somatic embryogenesis occurred on the lower surface of cotyledons at concentrations of 0.5–2μM and was less genotype-dependent than with Ba. A high frequency of callus induction could be obtained from seedlings and leaf explants, but only a few of the calluses derived from leaf explants could regenerate to plants via indirect somatic embryogenesis. These results demonstrated that TDZ could prove to be a more effective cytokinin for in vitro culture of sugar beet than BA. Rapid and efficient regeneration of plants using TDZ may provide a route for the production of transgenic sugar beet following Agrobacterium-mediated transformation.
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References
Atanassov, A. I. Sugar beet. In: Evans, D. A.; Sharp, W. R.; Ammirato, P. V.; eds. Handbook of plant cell culture, vol. 4. New York: Macmillan; 1986;652–680.
Brandstatter, J.; Kieber, J. J. Two genes with similarity to bacterial response regulators are rapidly and specifically induced by cytokinins in Arabidopsis. Plant Cell 10:1009–1019; 1998.
Capelle, S. C.; Mok, D. W.; Kirchner, S. C.; Mok, M. C. Effects of thidiazuron on cytokinin autonomy and the metabolism of N-γ′-isopentenyl (8-14C) adenosine in callus tissue of Phaseolus lunatus L. Plant. Physiol. 73:796–802; 1983.
Detrez, C.; Tetu, T.; Sangwan, R. S.; Sangwan-Norreel, B. S., Direct organogenesis from petiole and thin cell layer explants in sugar beet cultured in vitro. J. Exp. Bot. 39:917–926; 1988.
D'Hlluin, K.; Bossut, M.; Bonne, E.; Mazur, B.; Leemans, J.; Botterman, J. Transformation of sugarbeet (Beta vulgaris L.) and evaluation of herbicide resistance in transgenic plants. Bio/Technology 10:309–313; 1992.
Elliott, M. C.; Chen, D. F.; Fowler, M. R.; Kirby, M. J.; Kubalakova, M.; Scott, N. W.; Zhang, C. L.; Slater, A. Towards the perfect sugar beet via gene manipulation. Sugar Crops China I: 23–30; 1996.
Gill, R.; Senaratna, T.; Saxena, P. K. Thidiazuron-induced somatic embryogenesis enhances the viability of hydrogel-encapsulated somatic embryos of geranium. J. Plant Physiol. 143:726–729; 1994.
Gill, R.; Saxena, P. K. Somatic embryogenesis in Nicotiana tabacum L. Induction by thidiazuron of direct embryo differentiation from cultured leaf dises. Plant Cell Rep. 12:154–159; 1993.
Griever, T. M.; Gartland, K. M. A.; Elliott, M. C. Micropropagation of commercially important sugar beet cultivars. Plant Growth Reg. 21:15–18; 1997.
Hosemans, D.; Bossoutrot, D. Induction of haploid plants from in vitro culture of unpollinated beet ovules (Beta vulgaris L.). Z. Pflanz. 91:74–77; 1983.
Huetteman, C. A.; Preece, J. E. Thidiazuron: a potent cytokinin for woody plant tissue culture. Plant Cell Tiss. Organ Cult. 34:71–76; 1993.
Kaminek, M.; Armstrong, D. J. Genotypic variation in cytokinin oxidase from Phaseolus callus cultures. Plnat Physiol. 93:1530–1538; 1990.
Kubalakova, M. Somatic embryogenesis and cytoplasmic sterility in Beta vulgaris L. var Saccharifera. Biol. Plant. 32:414–419; 1990.
Levall, M. W.; Bornman, J. F. Selection in vitro for UV-tolerant sugarbeet (Beta vulgais) somaclones. Physiol. Planta 88:37–43; 1993.
Li, Z.; Jarret, R. L.; Pittman, R. N.; Demski, J. W. Shoot organogenesis from cultured seed explants of peanut (Arachis hypogaea L.) using thidiazuron. In vitro Cell Dev. Biol. Plant 30:187–191; 1994.
Malik, K. A.; Saxena, P. K. Regeneration in Phaseolus vulgaris L. Highfrequency induction of direct shoot formation in intact seedlings by N 6-benzyladenine and thidiazuron. Planta 186:384–389; 1992.
Mok, M. C.; Mok, D. W. S.; Armstrong, D. J.; Shudo, I. O.; Isogai, Y.; Okamoto, T. Cytokinin activity of N-phenyl-N'-1,2,3-thidiazol-5-ylurca (thidiazuron). Phytochemistry 21:1509–1511; 1982.
Murashige, T.; Skoog, F. A revised medium for rapid growth and bioassays with tobacco tissue cultures. Physiol. Plant. 15:473–497; 1962.
Murthy, B. N. S.; Murch, S. J.; Saxena, P. K. Thidiazuron induced somatic embryogenesis in intact seedlings of peanut (Arachis hypogaea): endogenous growth regulator levels and significance of cotyledons. Physiol. Plant. 94:268–276; 1995.
Murthy, B. N. S.; Murch, S. J.; Saxena, P. K. Thidiazuron: a potent regulator of in vitro plant morphogenesis. In vitro. Cell. Dev. Biol. Plant. 34:267–275; 1998.
Pedersen, M. G.; Andersen, J. M. Callus morphology and endogenous cytokinin in regenerating sugar beet callus cultures. Proceedings of the Beta Eucarpia Meeting Helsingor; 1998
Pua, E. C.; Thorpe, T. A. Differential response of non-selected and Na2SO4-selected callus cultures of Beta vulgaris L. to salt stress. J. Plant Physiol. 123:241–248; 1986.
Ritchie, G. A.; Short, K. C.; Davey, M. R. In vitro shoot regeneration from callus, leaf axils and petioles of sugar beet (Beta vulgaris L.). J. Exp. Bot. 402:277–283; 1989.
Roussy, I.; Doubois, F.; Sangwan, R. S.; Sangwan-Norreel, B. S. In planta 2,3,5-triiodobenzoic acid treatment promotes high frequency and routine in vitro regeneration of sugarbeet (Beta vulgaris L.) plants Plant Cell Rep 16:142–146; 1996.
Saunders, J. W.; Acquaah, G.; Renner, K. A.; Doley, W. P. Monogenic dominant sulfonylurea resistance in sugarbeet from somatic cell selection. Crop Sci. 32:1357–1360; 1992.
Saunders, J. W.; Doley, W. P. One step shoot regeneration from callus of whole plant leaf explants of sugarbeet lines and somaclonal variation of in vitro culture behaviour. J. Plant Physiol. 124:473–479; 1986.
Saxena, P. K.; Malik, K. A.; Gill, R. Induction by thidiazuron of somatic embryogenesis in intact seedlings of peanut. Planta 187:421–424; 1992.
Tenning, P.; Weich, E. W.; Kjarsgaard, U.-B.; Lelu, M.-A.; Nihlgard, M. Somatic embryogenesis form zygotic embryos of sugarbeet (Beta vulgaris L.). Plant Sci. 81:103–109; 1992.
Tetu, T.; Sangwan, R. S.; Sangwan-Narreel, B. S. Hormonal control of organogenesis and somatic embryogenesis in Beta vulgaris callus. J. Exp. Bot. 38:506–517; 1987.
Thomas, J. C.; Katterman, F. R. Cytokinin activity induced by thidiazuron. Plant Physiol 81:681–683; 1986.
Yu, M. H. Growth and reproduction performance of ovule-induced sugarbeet plants. SABRAO J. 24:47–55; 1992.
Zhong, Z.; Smith, H. G.; Thomas, T. H. In vitro culture of petioles and intact leaves of sugar beet (Beta vulgaris). Plant Growth Reg. 12:59–66; 1993.
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Zhang, CL., Chen, DF., Elliott, M.C. et al. Thidiazuron-induced organogenesis and somatic embryogenesis in sugar beet (Beta vulgaris L.). In Vitro Cell.Dev.Biol.-Plant 37, 305–310 (2001). https://doi.org/10.1007/s11627-001-0054-6
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DOI: https://doi.org/10.1007/s11627-001-0054-6