[1]
Barrett, B. (2003) Medicinal Properties of Echinacea: A Critical Review. Phytomedicine, 10, 66-86.
http://dx.doi.org/10.1078/094471103321648692
[2]
Abbasi, B.H., Saxena, P.K., Murch, S.J. and Liu, C. (2007) Echinacea Biotechnology: Challenges and Opportunities. In Vitro Cel Devel Bio-Plant, 43, 481-492.
http://dx.doi.org/10.1007/s11627-007-9057-2
[3]
Kindscher, K. (2006) The Conservation Status of Echinacea Species. Report US Forest Service, 247.
[4]
Chen, X.L., Zhang, J.J., Chen, R., Li, Q.L., Yang, Y.S. and Wu, H. (2013) An Uncommon Plant Growth Regulator, Die-thyl Aminoethyl Hexanoate, Is Highly Effective in Tissue Cultures of the Important Medicinal Plant Purple Coneflower (Echinacea purpurea L.) Biomed Res Int, 2013, Article ID: 540316.
[5]
Tarczynski, M.C., Jensen, R.G. and Bohnert, H.J. (1993) Stress Protection of Transgenic Tobacco by Production of the Osmolyte Mannitol. Science-New York Then Washington, 259, 508-564.
http://dx.doi.org/10.1126/science.259.5094.508
[6]
Ahmad, I., Larher, F. and Stewart, G.R. (1979) Sorbitol, a Compatible Osmotic Solute in Plantago maritima. New Phytol, 82, 671-678.
http://dx.doi.org/10.1111/j.1469-8137.1979.tb01661.x
[7]
Zhao, F., Nilanthi, D., Yang, Y. and Wu, H. (2006) Anther Culture and Haploid Plant Regeneration in Purple Coneflower (Echinacea purpurea L.). Plant Cell, Tissue and Organ Culture, 86, 55-62.
http://dx.doi.org/10.1007/s11240-006-9096-0
[8]
Nilanthi, D., Chen, X., Zhao, F., Yang, Y. and Wu, H. (2009) Influence of Gene Dose on In Vitro Culture Responses of Purple Coneflower (Echinacea purpurea L.). 3rd International Conference on Bioinformatics and Biomedical Engineering (ICBBE 2009), 1-4.
http://dx.doi.org/10.1109/ICBBE.2009.5162959
[9]
Chen, R., Chen, X.L., Li, Q.L., Yang, Y.S. and Wu, H. (2012) Micropropagation by Repeatedly Inducing Axillary Bud Formation of Different Gene Dosage Purple Coneflower Plants. 2012 International Conference on Bio-medical Engineering and Biotechnology (iCBEB), 1056-1059.
http://dx.doi.org/10.1109/iCBEB.2012.273
[10]
Murashige, T. and Skoog, F. (1962) A Revised Medium for Rapid Growth and Bio Assays with Tobacco Tissue Cultures. Physiol Plantarum, 15, 473-497.
http://dx.doi.org/10.1111/j.1399-3054.1962.tb08052.x
[11]
Nilanthi, D., Zhao, F., Chen, X., Yang, Y. and Wu, H. (2010) An Efficient In Vitro Propagation Culture Protocol for Purple Coneflower (Echinacea purpurea L.). 2010 4th International Conference on Bioinformatics and Biomedical Engineering (iCBBE), 1-4.
http://dx.doi.org/10.1109/ICBBE.2010.5517667
[12]
Chen, R., Jin, Y.H., Li, Q.L., Chen, X.L., Yang, Y.S. and Wu, H. (2014) Some Effec-tive Methods for Dealing with the Problem of Hyperhydricity in Cloning Purple Coneflower. 2013 International Conference on Biological, Medical and Chemical Engineering (BMCE2013), DEStech Publications, Inc., 319.
[13]
Vandemoortele, J., Kevers, C., Billard, J. and Gaspar, T. (2001) Osmotic Pretreatment Promotes Axillary Shooting from Cauliflower Curd Pieces by Acting through Internal Cytokinin Level Modifications. J Plant Physiol, 158, 221-225.
http://dx.doi.org/10.1078/0176-1617-00197
[14]
Kadota, M., Imizu, K. and Hirano, T. (2001) Double-Phase In Vitro Culture Using Sorbitol Increases Shoot Proliferation and Reduces Hyperhydricity in Japanese Pear. Sci Hortic- Amsterdam, 89, 207-215.
http://dx.doi.org/10.1016/S0304-4238(00)00234-X
[15]
Li, Q., Chen, R., Chen, X., Yang, Y. and Wu, H. (2013) Estimation of the Cloning Potential in Six Selected Genotypes of Purple Coneflower (Echinacea purpurea L.). Biotech Biotech Eq, 27, 3911-3917.
http://dx.doi.org/10.5504/BBEQ.2013.0057