An efficient callus proliferation protocol and rhaponticin accumulation of Rheum franzenbachii Munt., a medicinal plant

作者：Wang Junli^*; Lu Yuan; Wang Qian; Liu Kun; Song Yunfei; Bi Kaili

来源：Journal of Plant Biochemistry and Biotechnology, 2011, 20(2): 252-257.

DOI：10.1007/s13562-011-0055-4

• Rheum franzenbachii
• Callus induction
• Proliferation
• Rrhaponticin
• Germplasm conservation

An efficient callus proliferation system for Rheum franzenbachii Munt., a rare medicinal plant, has been developed. Callus induced from leaf explants incubated on Murashige and Skoog (MS) medium with appropriate supplements of plant growth regulators. In the 6-benzylaminopurine (6-BAP) in combination with alpha-naphthalene acetic acid (NAA) treatments, different concentrations of NAA showed different induction effects on explants. When concentration of 6-BAP was as high as 2.0 mgl(-1) in combination with 0.5 mgl(-1) NAA, the callus induction rate reached 58.3%. N-phenyl-N'-1,2,3-thiadiazol-5-ylure (TDZ) in combination with NAA was very suitable for callus proliferation compared to TDZ in combination with 2,4-dicholorophenoxy acetic acid (2,4-D) or TDZ in combination with indole-3-acetic acid (IAA). Fresh and dry weight of callus cultured on MS medium supplemented with 0.5 mgl(-1) TDZ in combination with 0.2 mgl(-1) NAA increased 26.3 and 15.0 times within 35 days culture, respectively. Quantitative analysis of rhaponticin by HPLC showed that the phytochemical profile of callus was similar to that of wild plants, and the content of rhaponticin in callus cultured on MS medium supplemented with 0.5 mgl(-1) TDZ and 0.2 mgl(-1) NAA was 16.6 mgg-(1)DW compared to that of 4.0 mgg(-1) DW in wild plants.

• 出版日期2011-7
• 单位中央民族大学; 河北大学