Cargando…

Meristem Initiation and de novo Stem Cell Formation

Plant aerial development relies on meristem activity which ensures main body plant axis development during plant life. While the shoot apical meristem (SAM) formed in the embryo only contributes to the main stem, the branched structure observed in many plants relies on axillary meristems (AMs) forme...

Descripción completa

Detalles Bibliográficos
Autores principales: Nicolas, Antoine, Laufs, Patrick
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9087721/
https://www.ncbi.nlm.nih.gov/pubmed/35557739
http://dx.doi.org/10.3389/fpls.2022.891228
_version_ 1784704224818364416
author Nicolas, Antoine
Laufs, Patrick
author_facet Nicolas, Antoine
Laufs, Patrick
author_sort Nicolas, Antoine
collection PubMed
description Plant aerial development relies on meristem activity which ensures main body plant axis development during plant life. While the shoot apical meristem (SAM) formed in the embryo only contributes to the main stem, the branched structure observed in many plants relies on axillary meristems (AMs) formed post-embryonically. These AMs initiate from a few cells of the leaf axil that retain meristematic characteristics, increase in number, and finally organize into a structure similar to the SAM. In this review, we will discuss recent findings on de novo establishment of a stem cell population and its regulatory niche, a key step essential for the indeterminate fate of AMs. We stress that de novo stem cell formation is a progressive process, which starts with a transient regulatory network promoting stem cell formation and that is different from the one acting in functional meristems. This transient stage can be called premeristems and we discuss whether this concept can be extended to the formation of meristems other than AMs.
format Online
Article
Text
id pubmed-9087721
institution National Center for Biotechnology Information
language English
publishDate 2022
publisher Frontiers Media S.A.
record_format MEDLINE/PubMed
spelling pubmed-90877212022-05-11 Meristem Initiation and de novo Stem Cell Formation Nicolas, Antoine Laufs, Patrick Front Plant Sci Plant Science Plant aerial development relies on meristem activity which ensures main body plant axis development during plant life. While the shoot apical meristem (SAM) formed in the embryo only contributes to the main stem, the branched structure observed in many plants relies on axillary meristems (AMs) formed post-embryonically. These AMs initiate from a few cells of the leaf axil that retain meristematic characteristics, increase in number, and finally organize into a structure similar to the SAM. In this review, we will discuss recent findings on de novo establishment of a stem cell population and its regulatory niche, a key step essential for the indeterminate fate of AMs. We stress that de novo stem cell formation is a progressive process, which starts with a transient regulatory network promoting stem cell formation and that is different from the one acting in functional meristems. This transient stage can be called premeristems and we discuss whether this concept can be extended to the formation of meristems other than AMs. Frontiers Media S.A. 2022-04-26 /pmc/articles/PMC9087721/ /pubmed/35557739 http://dx.doi.org/10.3389/fpls.2022.891228 Text en Copyright © 2022 Nicolas and Laufs. https://creativecommons.org/licenses/by/4.0/This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Plant Science
Nicolas, Antoine
Laufs, Patrick
Meristem Initiation and de novo Stem Cell Formation
title Meristem Initiation and de novo Stem Cell Formation
title_full Meristem Initiation and de novo Stem Cell Formation
title_fullStr Meristem Initiation and de novo Stem Cell Formation
title_full_unstemmed Meristem Initiation and de novo Stem Cell Formation
title_short Meristem Initiation and de novo Stem Cell Formation
title_sort meristem initiation and de novo stem cell formation
topic Plant Science
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9087721/
https://www.ncbi.nlm.nih.gov/pubmed/35557739
http://dx.doi.org/10.3389/fpls.2022.891228
work_keys_str_mv AT nicolasantoine meristeminitiationanddenovostemcellformation
AT laufspatrick meristeminitiationanddenovostemcellformation