Volume: 3, 2024
3rd International PhD Student’s Conference at the University of Life Sciences in Lublin, Poland:
ENVIRONMENT – PLANT – ANIMAL – PRODUCT
Abstract number: P010
DOI: https://doi.org/10.24326/ICDSUPL3.P010
Published online: 24 April 2024
ICDSUPL, 3, P010 (2024)
Functioning of the successive cambia in selected representatives of the family Aizoaceae
Adrianna Nowak1*, Elżbieta Myśkow1
1 Department of Developmental Plant Biology, Faculty of Biological Sciences, University of Wroclaw, Kanonia 6/8, 50-328 Wroclaw, Poland
* Corresponding author: 317499@uwr.edu.pl
Abstract
The vascular cambium is the meristem responsible for the secondary growth of plants, and its periclinal divisions lead to the formation of secondary conducting tissues – the secondary xylem and phloem. As a rule, the cambium is a single cylinder of meristematic cells, but some plants have developed anomalous cambia, which are one of many modifications that adapt plants to survive in a wide variety of environmental conditions. One of the anomalies of secondary growth is the formation of a succesive cambium producing several cylinders of cambium, each of which forms its own conducting tissues. Such a cambium is found in various groups of dicotyledonous plants including representatives of the plant family Aizoaceae. The aim of this study was to analyse the primary and secondary stem structure of selected representatives of the Aizoaceae family and to select species that could be used for further developmental analyses of successive cambial functioning and development. The results of the anatomical analyses showed that all the analysed plant species produced anomalous cambia, but in each of them the morphology of a plant and the method of formation is different. Plants with upper stems had fewer cambium cylinders compared to those with lower and thicker stems. In most of plants, the first cambium cylinder established outwards from the primary vascular bundles, whereas in Rhombophyllum dolabriforme and Pleiospilos simulans the first cylinder was formed in a typical manner. Additionally, the arrangement of the individual cylinders and secondary vascular tissues affected the external shape of the stem. In conclusion, plants of the Aizoaceae family have developed anomalous cambia, affecting stem stability and hardness, due to those plants are succulent plants, which enable them to survive also under harsh environmental conditions such as the drought. However, in order to look more closely at the structure and function of this anomalous meristem, further developmental analyses would have to be carried out, taking into account the way of cambium formation and its influence on stem hardness and strength.
Keywords: anomalous cambia, secondary growth, successive cambia, Aizoaceae
How to cite
A. Nowak, E. Myśkow, 2024. Functioning of the successive cambia in selected representatives of the family Aizoaceae. In: 3rd International PhD Student’s Conference at the University of Life Sciences in Lublin, Poland: Environment – Plant – Animal – Product. https://doi.org/10.24326/ICDSUPL3.P010