Abstract
Conditions were established for efficient plant regeneration from cotyledon explant calli in different cultivars ofBrassica juncea, B. campestris andB. carinata on Murashige & Skoog's (MS) medium supplemented with various combinations of cytokinins and auxins. Regeneration frequency, however, varied with genotype and the different growth hormone combinations in media. Almost in all species, MS medium with zeatin (1.0 mg 1-1) and IAA (0.1 mg l-1) was found to be best for shoot organogenesis followed by the ones containing high kinetin (2.0 mg l-1) and low IAA (0.02 or 0.2 mg l-1) concentrations. On these media, the cotyledonary explants invariably underwent callusing followed by multiple shoot formation, which could be separated and subcultured for further propagation. Number of shoots per cotyledon explant cultured varied from 0 to as many as 50. InB. juncea andB. campestris, the regeneration frequency declined sharply in the absence of auxin in medium. BAP in combination with NAA yielded no or a reduced number of shoots. Shoot organogenesis also declined with the reduction in photoperiod from continuous light to 16 hours. Shoots were easily rooted during prolonged incubation on the same medium and whole plants were transferred to pots in the greenhouse and grown to maturity.
Similar content being viewed by others
Abbreviations
- BAP:
-
6-benzylaminopurine
- KIN:
-
kinetin
- IAA:
-
indole-3-acetic acid
- MS:
-
medium after Murashige & Skoog [8]
- NAA:
-
α-napthaleneacetic acid
- ZEA:
-
Zeatin
References
Bornman, CH (1985) Regeneration in vitro of economically important crop plants in the Nordic countries. Hereditas (Suppl) 3: 7–13
Chuong, PV, Beversdorf, WD (1985) High frequency embryogenesis through isolated microspore culture inBrassica napus L. andB. carinata Braun. Plant Sci 39: 219–226
Chuong, PV, Pauls, KP, Beversdorf, WD (1987) Protoplast culture and plant regeneration fromBrassica carinata Braun. Plant Cell Rep 6: 67–69
Dietert, MF, Barron, Sa, Yoder, OC (1982) Effects of genotype on in vitro culture in the genusBrassica. Plant Sci Lett 26: 233–240
Dunwell, JM (1976) A comparative study of environmental and developmental factors which influence embryo induction and growth in cultured anthers ofNicotiana tabacum. Environ Exp Bot 16: 109–118
Dunwell, JM (1981) In vitro regeneration from excised leaf discs of threeBrassica species. J Exp Bot 32: 789–799
Fazekas, GA, Sedmach, PA, Palmer, MV (1986) Genetic and environmental effects on in vitro shoot regeneration from cotyledon explants ofBrassica juncea. Plant Cell Tissue Org Cult 6: 177–180
Fu, Y, Jia, Y (1985) Plant regeneration from mesophyll protoplast culture of cabbage (Brassica oleracea var. capitata) Theor Appl Genet 71: 495–499
George, L, Rao, PS (1980) In vitro regeneration of mustard plants (Brassica juncea var. Rai-5) on cotyledon explants from non-irradiated irradiated and mutagen-treated seed. Ann Bot 46: 107–112
Glimelius, K (1984) High growth rate and regeneration capacity of hypocotyl protoplasts in some Brassicaceae. Physiol Plant 61: 38–44
Govil, S, Babbar, SB, Gupta, SC (1986) Plant regeneration from in vitro cultured anthers of black mustard (Brassica nigra Koch) Plant Breeding 97: 64–71
Keller, WA, Armstrong, KC (1977) Embryogenesis and plant regeneration inBrassica napus anther cultures. Can J Bot 55: 1383–1388
Keller, WA, Armstrong, KC (1979) Stimulation of embryogenesis and haploid production inBrassica campestris anther cultures by elevated temperatures. Theor Appl Genet 60: 167–214
Klimaszewska, K, Keller, WA (1985) High-frequency plant regeneration from thin-layer explants ofBrassica napus. Plant Cell Tissue Org Cult 4: 183–197
Larkin, PJ, Scowcroft, WR (1981) Somaclonal variation—a novel source of variability from cell culture for plant improvement. Theor Appl Genet 60: 197–214
Li, LC, Kohlenbach, HW (1982) Somatic embryogenesis in quite a direct way in cultures of mesophyll protoplasts ofBrassica napus (L.) Plant Cell Rep 1: 209–211
Lichter, R (1982) Induction of haploid plants from isolated pollen ofBrassica napus. Z. Pflanzenphysiol 105: 427–434
Murashige, T, Skoog, F (1962) A revised medium for rapid growth and bioassay with tobacco tissue cultures. Physiol Plant 15: 473–497
Rogozinska, JH, Drozdowska, L (1980) Organogenesis and plant formation from cotyledon and callus cultures of rape. Acta Soc Bot Pol 48: 5–20
Sacristan, MD (1985) Selection for disease resistance inBrassica cultures. Hereditas (Suppl) 3: 57–63
Singh, S, Chandra, N (1984) Plant regeneration in callus and suspension cultures ofBrassica campestris cv. Yellow Sarson. Plant Cell Rep 3: 1–4
Singh, S, Pareek, LK, Chandra, N (1981) Inducing differentiation from cultured cotyledonary leaves of mustard (Brassica juncea var. Prakash) Curr Sci 50: 412–414
Stavarek, SJ, Rains, DW (1984) The development of tolerance to mineral stress. HortSci 19: 377–382
Thomas, E, Hoffmann, F, Potrykus, I, Wenzel, G (1976) Protoplast regeneration and stem embryogenesis of haploid androgenetic rape. Mol Gen Genet 145: 245–247
Thomas, E, Wenzel, G (1975) Embryogenesis from microspores ofBrassica napus. Z Pflanzenzücht 79: 77–81
Wenzel, G (1980) Recent progress in microspore culture of crop plants. In: Davies, DR Hopwood, DA (Eds.) The Plant Genome, pp. 185–196. John Innes Charity, Norwich
Wenzel, G, Foroughi-Wehr, B, Friedt, W, Köhler, F, Oo, T (1985) Cell and tissue culture as supplementary tool in plant breeding: exemplified in potato, oilseed rape and barley. Hereditas (Suppl) 3: 15–25
Zee, SY, Hui, LH (1977) In vitro plant regeneration from hypocotyl and cotyledons of chinese kale (Brassica alboglabra Bailey) Z Pflanzenphysiol 82: 440–445.
Author information
Authors and Affiliations
Rights and permissions
About this article
Cite this article
Jain, R.K., Chowdhury, J.B., Sharma, D.R. et al. Genotypic and media effects on plant regeneration from cotyledon explant cultures of someBrassica species. Plant Cell Tiss Organ Cult 14, 197–206 (1988). https://doi.org/10.1007/BF00043410
Received:
Accepted:
Issue Date:
DOI: https://doi.org/10.1007/BF00043410