Intrusive growth of initials does not affect cambial circumference in Robinia pseudoacacia
Abstract 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 colle...
| Main Authors: | , , , |
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| Format: | Article |
| Language: | English |
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Nature Portfolio
2022-05-01
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| Series: | Scientific Reports |
| Online Access: | https://doi.org/10.1038/s41598-022-11272-y |
| _version_ | 1811305848275730432 |
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| author | Adam Miodek Aldona Gizińska Wiesław Włoch Paweł Kojs |
| author_facet | Adam Miodek Aldona Gizińska Wiesław Włoch Paweł Kojs |
| author_sort | Adam Miodek |
| collection | DOAJ |
| description | Abstract 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. |
| first_indexed | 2024-04-13T08:33:49Z |
| format | Article |
| id | doaj.art-c9444d348eeb468db30ba4bcb42459ff |
| institution | Directory Open Access Journal |
| issn | 2045-2322 |
| language | English |
| last_indexed | 2024-04-13T08:33:49Z |
| publishDate | 2022-05-01 |
| publisher | Nature Portfolio |
| record_format | Article |
| series | Scientific Reports |
| spelling | doaj.art-c9444d348eeb468db30ba4bcb42459ff2022-12-22T02:54:11ZengNature PortfolioScientific Reports2045-23222022-05-0112111110.1038/s41598-022-11272-yIntrusive growth of initials does not affect cambial circumference in Robinia pseudoacaciaAdam Miodek0Aldona Gizińska1Wiesław Włoch2Paweł Kojs3Polish Academy of Sciences Botanical Garden – Centre for Biological Diversity Conservation in PowsinPolish Academy of Sciences Botanical Garden – Centre for Biological Diversity Conservation in PowsinPolish Academy of Sciences Botanical Garden – Centre for Biological Diversity Conservation in PowsinPolish Academy of Sciences Botanical Garden – Centre for Biological Diversity Conservation in PowsinAbstract 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.https://doi.org/10.1038/s41598-022-11272-y |
| spellingShingle | Adam Miodek Aldona Gizińska Wiesław Włoch Paweł Kojs Intrusive growth of initials does not affect cambial circumference in Robinia pseudoacacia Scientific Reports |
| 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 |
| url | https://doi.org/10.1038/s41598-022-11272-y |
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