Abstract
Efficient Agrobacterium-mediated genetic transformation of Scoparia dulcis L. was developed using Agrobacterium tumefaciens strain LBA4404 harboring the binary vector pCAMBIA1301 with β-glucuronidase (GUS) (uidA) and hygromycin phosphotransferase (hpt) genes. Two-day precultured leaf segments of in vitro shoot culture were found to be suitable for cocultivation with the Agrobacterium strain, and acetosyringone was able to promote the transformation process. After selection on shoot organogenesis medium with appropriate concentrations of hygromycin and carbenicillin, adventitious shoots were developed on elongation medium by twice subculturing under the same selection scheme. The elongated hygromycin-resistant shoots were subsequently rooted on the MS medium supplemented with 1 mg l−1 indole-3-butyric acid and 15 mg l−1 hygromycin. Successful transformation was confirmed by PCR analysis using uidA- and hpt-specific primers and monitored by histochemical assay for β-GUS activity during shoot organogenesis. Integration of hpt gene into the genome of transgenic plants was also verified by Southern blot analysis. High transformation efficiency at a rate of 54.6% with an average of 3.9 ± 0.39 transgenic plantlets per explant was achieved in the present transformation system. It took only 2–3 months from seed germination to positive transformants transplanted to soil. Therefore, an efficient and fast genetic transformation system was developed for S. dulcis using an Agrobacterium-mediated approach and plant regeneration via shoot organogenesis, which provides a useful platform for future genetic engineering studies in this medicinally important plant.
Similar content being viewed by others
References
Abdin MZ (2007) Enhancing bioactive molecules in medicinal plants. In: Zhu Y, Tan B, Bay B, Liu C (eds) Natural products—essential resources for human survival. World Scientific, Singapore
Ahsan M, Islam SK, Gray AI, Stimson WH (2003) Cytotoxic diterpenes from Scoparia dulcis. J Nat Prod 66:958–961
Aileni M, Kokkirala VR, Kota SR, Umate P, Abbagani S (2008) Efficient in vitro regeneration from mature leaf explants of Scoparia dulcis L., an ethnomedicinal plant. J Herbs Spices Med Plants 14:200–207
An G (1985) High-efficiency transformation of cultured tobacco cells. Plant Physiol 79:568–570
Babincová M, Schronerová K, Sourivong P (2008) Antiulcer activity of water extract of Scoparia dulcis. Fitoterapia 79:587–588
Baulcombe D (2004) RNA silencing in plants. Nature 431:356–363
Bhattacharya R, Bhattacharya S (2001) High frequency in vitro propagation of Phyllanthus amarus Schum. & Thonn. by shoot tip culture. Indian J Exp Biol 39:1184–1187
Bohnert H, Nguyen H, Lewis NG (2008) Bioengineering and molecular biology of plant pathways. Advances in plant biochemistry and molecular biology, vol 1. Elsevier, Amsterdam
Chemler JA, Koffas MAG (2008) Metabolic engineering for plant natural product biosynthesis in microbes. Curr Opin Biotechnol 19:597–605
Dixon RA (2005) Engineering of plant natural product pathways. Curr Opin Plant Biol 8:329–336
Farnsworth NR, Soejarto DD (1991) Global importance of medicinal plants. In: Akerele O, Heywood V, Synge H (eds) Conservation and medicinal plants. Cambridge University Press, Cambridge, pp 25–51
Franke R, Michael CM, Meyer K, Shirley AM, Cusumano JC, Chapple C (2000) Modified lignin in tobacco and poplar plants over-expressing the Arabidopsis gene encoding ferulate 5-hydroxylase. Plant J 22:223–234
Ghanti KS, Govindaraju B, Venugopal RB, Ramgopal RS, Kaviraj SP, Jabeen FTZ, Barad A, Rao S (2004) High frequency shoot regeneration form Phyllanthus amarus Schum. & Thonn. Indian J Biotechnol 3:103–107
Grotewold E (2008) Transcription factors for predictive plant metabolic engineering: are we there yet? Curr Opin Biotechnol 19:138–144
Hu Z, Wu YR, Li W, Gao H (2006) Factors effecting Agrobacterium tumefaciens-mediated gentic transformation of Lycium babarum L. In Vitro Cell Dev Biol Plant 42:461–466
James DJ, Uratsu S, Cheng J, Negri P, Viss P, Dandekar AM (1993) Acetosyringone and osmprotectants like betaine or proline synergistically enhance Agrobacterium-mediated transformation of apple. Plant Cell Rep 12:559–563
Jefferson RA, Kavanagh TA, Bevan MW (1987) Gus fusions: β-glucuronidase as a sensitive and versatile gene fusion marker in higher plants. EMBO J 6:3901–3907
Khan MY, Aliabbas S, Kumar V, Rajkumar S (2009) Recent advances in medicinal plant biotechnology. Indian J Biotechnol 8:9–22
Kim SH, Hamada T (2005) Rapid and reliable method of extracting DNA form RNA form sweet potato [Ipomea batatas (L.) Lam.]. Biotechnol Lett 27:1841–1845
Kirby J, Keasling JD (2009) Biosynthesis of plant isoprenoids: perspectives for microbial engineering. Annu Rev Plant Biol 60:35–355
Latha M, Pari L, Sitasawad S, Bhonde R (2004) Scoparia dulcis, a traditional antidiabetic plant, protects against streptozotocin induced oxidative stress and apoptosis in vitro and in vivo. J Biochem Mol Toxicol 18:261–272
Latha M, Ramkumar KM, Pari L, Damodaran PN, Rajeshkannan V, Suresh T (2006) Phytochemical and antimicrobial study of an antidiabetic plant: Scoparia dulcis L. J Med Food 9:391–394
Latha M, Pari L, Ramkumar KM, Rajaguru P, Suresh T, Dhanabal T, Sitasawad S, Bhonde R (2009) Antidiabetic effects of scoparic acid D isolated from Scoparia dulcis in rats with streptozotocin-induced diabetes. Nat Prod Res 14:1–13
Mahmoud SS, Croteau RB (2001) Metabolic engineering of essential oil yield and composition in mint by altering expression of deoxyxylulose phosphate reductoisomerase and menthofuran synthase. Proc Natl Acad Sci USA 98:8915–8920
Mann V, Harker M, Pecker I, Hirschberg J (2000) Metabolic engineering of astaxanthin production in tobacco flowers. Nat Biotechnol 18:888–892
Mathew AJ, Jayachandran K (2009) Production of scopadulcic acid B from Scoparia dulcis Linn. using a luffa sponge bioreactor. Plant Cell Tissue Organ Cult 98:197–203
Murashige T, Skoog F (1962) A revised medium for rapid growth and bioassays with tobacco tissue cultures. Physiol Plant 15:473–497
Porika M, Aileni M, Gadidasu K, Kokkiral VR, Umate P, Rao AV, Devarakonda RK, Abbagani S (2009) In vitro HIV type 1 reverse transcriptase inhibitory acitivity of leaf extract of Scoparia dulcis L. J Herbs Spices Med Plants 15:241–247
Rashid H, Yokoi S, Toriyama K, Hinata K (1996) Transgenic plant production mediated by Agrobacterium in indica rice. Plant Cell Rep 20:701–705
Riel MA, Kyle DE, Milhous WK (2002) Efficacy of scopadulcic acid A against Palsmodium falciparum in vitro. J Nat Prod 65:614–615
Rosati C, Aquilani R, Dharmapuri S, Pallara P, Marusic C, Tavazza R, Bouvier F, Camara B, Giuliano G (2000) Metabolic engineering of beta-carotene and lycopene content in tomato fruit. Plant J 24:413–419
Schäfer H, Wink M (2009) Medicinally important secondary metabolites in recombinant microorganisms or plants: progress in alkaloid biosynthesis. Biotechnol J 4:1684–1703
Shimoda N, Toyoda-Yamamoto A, Nagamine J, Usami S, Katayama M, Sakagami Y, Michida Y (1990) Control of expression of Agrobacterium vir genes by synergistic action of phenolic signal molecules and monosaccharides. Proc Natl Acad Sci USA 87:6684–6688
Taylor L (2006) Vassourinha monograph 4/Scoparia dulcis. In: The rainforest, pharmacy to the world. Raintree Nutrition, Inc., Carson City. http://www.rain-tree.net/Vassourinha-Monograph.pdf
Vander Fits L, Deakin EA, Hoge JH, Memelink J (2000) The ternary transformation system : constitive virG on a compatible plasmid dramatically increases Agrobacterium-mediated plant transformation. Plant Mol Biol 43:495–502
Wang GL, Fang HL (1998) Mechanism and technology of plant genetic engineering. Science, Beijing
Yamazaki M, Lin S, Hayashi T, Morita N, Asamizu T, Mourakoshi I, Saito K (1996) Transgenic fertile Scoparia dulcis L., a folk medicinal plant, conferred with a herbicide-restistant trait using an Ri binary vector. Plant Cell Rep 15:317–321
Ye X, Al-Babili S, Klöti A, Zhang J, Lucca P, Beyer P, Potrykus I (2000) Engineering of povitamin A (beta-carotene) biosynthetic pathway into (carotenoid-free) rice endosperm. Science 287:303–305
Acknowledgments
This work was supported by grants from the National Basic Research Program (2007CB108805), the Shanghai Pujiang Talent Program (08PJ14109) and the CAS-TWAS Postgraduate Fellowship.
Author information
Authors and Affiliations
Corresponding author
Rights and permissions
About this article
Cite this article
Aileni, M., Abbagani, S. & Zhang, P. Highly efficient production of transgenic Scoparia dulcis L. mediated by Agrobacterium tumefaciens: plant regeneration via shoot organogenesis. Plant Biotechnol Rep 5, 147–156 (2011). https://doi.org/10.1007/s11816-011-0166-3
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s11816-011-0166-3