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Direct somatic embryogenesis and shoot organogenesis from leaf explants of Primulina tabacum

  • Brief Communication
  • Published:
Biologia Plantarum

Abstracts

An efficient propagation system via somatic embryogenesis and shoot organogenesis and plant regeneration system for endangered species Primulina tabacum Hance was established. Thidiazuron (TDZ) was the key plant growth regulator for inducing somatic embryogenesis and kinetin (KIN) and 6-benzylaminopurine (BAP) were the key cytokinins for inducing shoot organogenesis from leaf explants. TDZ combined with BAP or KIN in the induction Murashige and Skoog medium induced both somatic embryos and adventitious shoots. Leaf explants with abaxial site in contact with the medium induced less somatic embryos or adventitious shoots compared to inversely placed leaf explants and the optimum pH was 6.5–7.0. Secondary somatic embryos or adventitious shoot could be induced from primary somatic embryos using TDZ and BAP. Shoots developed adventitious roots on rooting medium containing 0.5 μM indole-3-butyric acid and 0.2 % activated carbon. Over 90 % of plantlets survived following acclimatization and transfer to potting mixture (sand:Vermiculite:limestone; 1:2:1).

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Abbreviations

BAP:

6-benzylaminopurine

2,4-D:

2,4-dichlorophenoxyacetic acid

IBA:

indole-3-butyric acid

KIN:

kinetin

NAA:

α-naphthalene acetic acid

TDZ:

thidiazuron

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Acknowledgement

Supports from the Corporation Program of National Basic Research Program of China (973 Program) (2007CB411600), the Program for Tropical & Subtropical Plant Germplasm Construction of Guangdong Province (2005B60301001, 2006B60101034) and Guangdong Scientific Program (2007A060306011) are gratefully acknowledged.

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Authors and Affiliations

  1. South China Botanical Garden, Chinese Academy of Sciences, Guangzhou, 510650, P.R. China

    G. H. Ma, C. X. He, H. Ren, Q. M. Zhang, S. J. Li & X. H. Zhang

  2. Graduate University of Chinese Academy of Sciences, Beijing, 100049, P.R. China

    C. X. He

  3. Kings Park and Botanic Garden, West Perth, WA, 6005, Australia

    B. Eric

Authors
  1. G. H. Ma
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  2. C. X. He
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  3. H. Ren
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  4. Q. M. Zhang
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  5. S. J. Li
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  6. X. H. Zhang
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  7. B. Eric
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Correspondence to G. H. Ma.

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Ma, G.H., He, C.X., Ren, H. et al. Direct somatic embryogenesis and shoot organogenesis from leaf explants of Primulina tabacum . Biol Plant 54, 361–365 (2010). https://doi.org/10.1007/s10535-010-0064-5

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  • DOI: https://doi.org/10.1007/s10535-010-0064-5

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