An Essential Function for Auxin in Embryo Development

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Authors

VERMA Subodh ATTULURI Venkata Pardha S. ROBERT BOISIVON Helene

Year of publication 2021
Type Article in Periodical
Magazine / Source Cold Spring Harb Perspect Biol
MU Faculty or unit

Central European Institute of Technology

Citation
Web Link to the abstract
Doi http://dx.doi.org/10.1101/cshperspect.a039966
Keywords Arabidopsis thaliana; auxin; embryo development; patterning
Description Embryogenesis in seed plants is the process during which a single cell develops into a mature multicellular embryo that encloses all the modules and primary patterns necessary to build the architecture of the new plant after germination. This process involves a series of cell divisions and coordinated cell fate determinations resulting in the formation of an embryonic pattern with a shoot-root axis and cotyledon(s). The phytohormone auxin profoundly controls pattern formation during embryogenesis. Auxin functions in the embryo through its maxima/minima distribution, which acts as an instructive signal for tissue specification and organ initiation. In this review, we describe how disruptions of auxin biosynthesis, transport, and response severely affect embryo development. Also, the mechanism of auxin action in the development of the shoot-root axis and the three-tissue system is discussed with recent findings. Biological tools that can be implemented to study the auxin function during embryo development are presented, as they may be of interest to the reader.
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