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Experimental and Practical Application of Fern Somatic Embryogenesis

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Current Advances in Fern Research

Abstract

Somatic embryogenesis (SE) is a fascinating developmental program that was first described for carrot 60 years ago. In 2015, the first report of SE in the Monilophyta was published for Cyathea delgadii Sternb. Using the data obtained for somatic embryo induction and development in this tree fern, we presented a new model system for studying early events in SE. Here, we summarize what is known of that model system, which requires a hormone-free medium to induce embryogenic competence. Special emphasis is placed on hormonal regulation of somatic-to-embryogenic transition and on the cytomorphological and proteomic changes that occur during early SE. Our research also reveals that SE is able to improve fern productivity to a much greater extent than can current conventional in vitro propagation methods for cryptogamic plants.

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Abbreviations

ABA:

Abscisic acid

ACC:

Subunit acetyl-CoA carboxylase

ACS:

Acetyl-coenzyme A synthetase

APX:

L-ascorbate peroxidase

CKs:

Cytokinins

DAHPS1:

Phospho-2-dehydro-3-deoxyheptonate aldolase 1

DHQ synthase:

3-dehydroquinate synthase

GDH:

Glutamate dehydrogenase

GST:

Glutathione S-transferase

IAA:

Indole-3-acetic acid

MED37:

The mediator of RNA polymerase II transcription subunit 37

RGP1:

UDP-arabinose mutase

RHM1:

UDP-4-keto-L-rhamnose-reductase RHM1

SE:

Somatic embryogenesis

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Correspondence to Anna Mikuła .

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Mikuła, A., Grzyb, M., Tomiczak, K., Rybczyński, J.J. (2018). Experimental and Practical Application of Fern Somatic Embryogenesis. In: Fernández, H. (eds) Current Advances in Fern Research. Springer, Cham. https://doi.org/10.1007/978-3-319-75103-0_6

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