| Electronic Journal of Biotechnology ISSN: 0717-3458 |
Vol.
13 No. 1, Issue of January 15, 2010 |
| © 2010 by Pontificia Universidad Católica
de Valparaíso -- Chile |
Received December 22, 2008
/ Accepted July 12, 2009 |
| DOI: 10.2225/vol13-issue1-fulltext-4 |
|
Induction of somatic embryogenesis as an example of
stress-related plant reactions
Maria Amely Zavattieri*
Laboratory
of Plant Breeding and Biotechnology
Institute of Mediterranean Agricultural and Environmental Sciences
University of Évora
Évora, Portugal
E-mail: zavattieri@uevora.pt
António Miguel Frederico
EU Marie Curie Chair
Institute of Mediterranean Agricultural and Environmental
Sciences
University of Évora
Évora, Portugal
Mónica Lima
Laboratory of Plant Breeding and Biotechnology
Institute of Mediterranean Agricultural and Environmental
Sciences
University of Évora
Évora, Portugal
Rui Sabino
Institute of Mediterranean Agricultural
and Environmental
Sciences
University of Évora
Évora, Portugal
Birgit Arnholdt-Schmitt
EU Marie Curie Chair
Institute of Mediterranean Agricultural and Environmental Sciences
University of Évora
Évora, Portugal
Website: http://www.icam.uevora.pt
*Corresponding author
Financial support: Institute of Mediterranean Agricultural and Environmental Sciences (ICAAM),University of Évora, 7002-554 Évora, Portugal.
Keywords: cell reprogramming, reactive oxygen species, somatic embryogenesis, stress.
Abbreviations: |
2,4-D:
2,4-dichlorophenoxyacetic acid
ABA: abscisic acid
ABI3:
ABI gene family member 3
ANP1: Arabidopsis NPK1-like protein
kinase
AP: ascorbate peroxidase
AOX: alternative
oxidase
DNA: deoxyribonucleic acid
Fe-EDTA: ferric
ethylenediaminetetraacetic acid
M: molar concentration
MAPK: mitogen-activated
protein kinase
NO: Nitric oxide
PGRs: plant growth regulators
ROS: reactive oxygen species
SE: somatic embryogenesis
SOD: superoxide dismutase |
In this review, we address the role of
stress as one of the principal causes for a cell or tissue to change its
pre-existing somatic program, reprogramming itself to express the embryogenic
pathway. The focus of this paper is the effect of different stress conditions
on the induction phase of plant somatic embryogenesis, as well as the
development of embryogenic competence as a result of the applied stresses. We
also present a variety of data that link plant somatic embryogenesis, DNA
methylation and oxidative stress response.
|
