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Intrusive growth of initials does not affect cambial circumference in Robinia pseudoacacia

This study aimed to test the hypothesis whether intrusive growth of initial cells is related to the increase in circumference of Robinia pseudoacacia vascular cambium—both qualitatively and quantitatively. The mode of intrusive growth of cambial initial cells was also studied. Samples collected from...

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Autores principales: Miodek, Adam, Gizińska, Aldona, Włoch, Wiesław, Kojs, Paweł
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Nature Publishing Group UK 2022
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9076624/
https://www.ncbi.nlm.nih.gov/pubmed/35523846
http://dx.doi.org/10.1038/s41598-022-11272-y
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author Miodek, Adam
Gizińska, Aldona
Włoch, Wiesław
Kojs, Paweł
author_facet Miodek, Adam
Gizińska, Aldona
Włoch, Wiesław
Kojs, Paweł
author_sort Miodek, Adam
collection PubMed
description This study aimed to test the hypothesis whether intrusive growth of initial cells is related to the increase in circumference of Robinia pseudoacacia vascular cambium—both qualitatively and quantitatively. The mode of intrusive growth of cambial initial cells was also studied. Samples collected from tree trunks were examined using series of semi-thin transverse sections. Anatomical reconstructions of radial and tangential planes of analysed fragments of cambial tissue were made. Observations and measurements have shown that the intrusive growth of R. pseudoacacia initial cells does not contribute to an increase in tangential dimension of observed tissue fragments where cell rearrangement occurs. Moreover, initially separated tangential walls of cells (between which cambial initial cell elongates intrusively) are transformed into obliquely oriented walls. These results stand in accordance with a statement that only symplastic growth of initials, not intrusive growth, is responsible for the increase in circumference in all woody plants with the continuous cambial cylinder. Moreover, we managed to capture the moment of transition of initial status from one cell to another for the first time. This phenomenon may be explained on the basis of the system of mechanical stresses operating not only in the secondary meristematic tissue but also in a whole plant organism.
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spelling pubmed-90766242022-05-08 Intrusive growth of initials does not affect cambial circumference in Robinia pseudoacacia Miodek, Adam Gizińska, Aldona Włoch, Wiesław Kojs, Paweł Sci Rep Article This study aimed to test the hypothesis whether intrusive growth of initial cells is related to the increase in circumference of Robinia pseudoacacia vascular cambium—both qualitatively and quantitatively. The mode of intrusive growth of cambial initial cells was also studied. Samples collected from tree trunks were examined using series of semi-thin transverse sections. Anatomical reconstructions of radial and tangential planes of analysed fragments of cambial tissue were made. Observations and measurements have shown that the intrusive growth of R. pseudoacacia initial cells does not contribute to an increase in tangential dimension of observed tissue fragments where cell rearrangement occurs. Moreover, initially separated tangential walls of cells (between which cambial initial cell elongates intrusively) are transformed into obliquely oriented walls. These results stand in accordance with a statement that only symplastic growth of initials, not intrusive growth, is responsible for the increase in circumference in all woody plants with the continuous cambial cylinder. Moreover, we managed to capture the moment of transition of initial status from one cell to another for the first time. This phenomenon may be explained on the basis of the system of mechanical stresses operating not only in the secondary meristematic tissue but also in a whole plant organism. Nature Publishing Group UK 2022-05-06 /pmc/articles/PMC9076624/ /pubmed/35523846 http://dx.doi.org/10.1038/s41598-022-11272-y Text en © The Author(s) 2022 https://creativecommons.org/licenses/by/4.0/Open Access This article is licensed under a Creative Commons Attribution 4.0 International License, which permits use, sharing, adaptation, distribution and reproduction in any medium or format, as long as you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons licence, and indicate if changes were made. The images or other third party material in this article are included in the article's Creative Commons licence, unless indicated otherwise in a credit line to the material. If material is not included in the article's Creative Commons licence and your intended use is not permitted by statutory regulation or exceeds the permitted use, you will need to obtain permission directly from the copyright holder. To view a copy of this licence, visit http://creativecommons.org/licenses/by/4.0/ (https://creativecommons.org/licenses/by/4.0/) .
spellingShingle Article
Miodek, Adam
Gizińska, Aldona
Włoch, Wiesław
Kojs, Paweł
Intrusive growth of initials does not affect cambial circumference in Robinia pseudoacacia
title Intrusive growth of initials does not affect cambial circumference in Robinia pseudoacacia
title_full Intrusive growth of initials does not affect cambial circumference in Robinia pseudoacacia
title_fullStr Intrusive growth of initials does not affect cambial circumference in Robinia pseudoacacia
title_full_unstemmed Intrusive growth of initials does not affect cambial circumference in Robinia pseudoacacia
title_short Intrusive growth of initials does not affect cambial circumference in Robinia pseudoacacia
title_sort intrusive growth of initials does not affect cambial circumference in robinia pseudoacacia
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC9076624/
https://www.ncbi.nlm.nih.gov/pubmed/35523846
http://dx.doi.org/10.1038/s41598-022-11272-y
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