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Induction of somatic embryogenesis in woody plants

  • Tasiu IsahEmail author
Review

Abstract

Somatic embryogenesis, the in vitro developmental program by which somatic cells are reprogrammed to undergo cellular and molecular changes that make them competent to produce somatic embryos, has been achieved with many woody plants. The program involves the stages of competence acquisition, induction and expression of the morphogenic pathway by the cultured cells and tissues. The ability to express the program in cultured cells/tissues is regulated by many factors, including genotype, explant type and age and culture conditions. In many woody plants, somatic embryogenesis was achieved with mature, immature explants or both. Juvenile tissues as immature and mature zygotic embryos are regarded best explants to establish embryogenic cultures in woody plants and potential to obtain the cultures decline with increasing maturity of the explant.

Keywords

Woody plants Trees Explant Zygotic embryo Embryogenic tissue Somatic embryogenesis 

Abbreviations

SE

Somatic embryogenesis

PGRs

Plant growth regulators

LCO

Lipo-chito-oligosaccharides

AGPs

Arabino galactan proteins

PEM

Primary embryo mass

Notes

Acknowledgments

This work was supported by the agreed financial terms between Department of Biotechnology, Government of India New Delhi and The World Academy of Sciences for the Advancement of Science in Developing Countries (TWAS) Trieste Italy, through DBT—TWAS Postgraduate Research Fellowship. I am highly grateful to Hamdard University New Delhi, India, for providing me the research facilities. Sincere appreciations are also extended to the reviews editor Anderz K. Kononowicz and an anonymous reviewer for the critical reading, valuable suggestions, observations and relevant comments on the manuscript. I also express my sincere apologies to those whose relevant literature contribution is not cited in the manuscript due to the wide scope of the topic and limited space available for a manuscript.

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Copyright information

© Franciszek Górski Institute of Plant Physiology, Polish Academy of Sciences, Kraków 2016

Authors and Affiliations

  1. 1.Cellular Differentiation and Molecular Genetics Section, Department of BotanyHamdard UniversityNew DelhiIndia

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