Do Plasmodesmata Play a Prominent Role in Regulation of Auxin-Dependent Genes at Early Stages of Embryogenesis?

Overview

Journal Cells

Publisher MDPI

Specialties Biochemistry
Biophysics
Cell Biology
Molecular Biology

Date 2021 Apr 3

PMID 33810252

Citations 1

Authors

Konrad Winnicki

Justyna Teresa Polit

Aneta Zabka

Janusz Maszewski

Affiliations

Soon will be listed here.

Abstract

Plasmodesmata form intercellular channels which ensure the transport of various molecules during embryogenesis and postembryonic growth. However, high permeability of plasmodesmata may interfere with the establishment of auxin maxima, which are required for cellular patterning and the development of distinct tissues. Therefore, diffusion through plasmodesmata is not always desirable and the symplastic continuum must be broken up to induce or accomplish some developmental processes. Many data show the role of auxin maxima in the regulation of auxin-responsive genes and the establishment of various cellular patterns. However, still little is known whether and how these maxima are formed in the embryo proper before 16-cell stage, that is, when there is still a nonpolar distribution of auxin efflux carriers. In this work, we focused on auxin-dependent regulation of plasmodesmata function, which may provide rapid and transient changes of their permeability, and thus take part in the regulation of gene expression.

Citing Articles

A Retro-Perspective on Auxin Transport.

Geisler M Front Plant Sci. 2021; 12:756968.

PMID: 34675956 PMC: 8524130. DOI: 10.3389/fpls.2021.756968.

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