The effect of drought stress on the anatomical characteristics of leaves, stems and roots of Nepenthes mirabilis (Lour.) Druce
DOI:
https://doi.org/10.55981/bkr.2023.737Keywords:
anatomical characteristics, drought stress, Nepenthes mirabilisAbstract
Plant growth is strongly influenced by the availability of water where it grows. The availability of water in plant cells will affect their anatomical structure. This study aimed to determine the effect of drought stress on the anatomical structural characteristics of the roots, stems, and leaves of Nepenthes mirabilis (Lour.) Druce. The study was conducted from January to July 2020. A completely randomized design (CRD) was applied with five treatment levels, namely control, 5, 10, 15, and 20 days of drought stress. Stem organ incision preparations were made using a non-paraffin method. Preparations for leaf and root organ incisions were made using the paraffin method. The results showed that drought stress significantly affected the thickness of the epidermal and mesophyll tissues of leaves and the thickness of the epidermal stem tissues. Drought stress increased the thickness of leaf and stemmed epidermal tissues in 20-days of drought stress treatment, respectively, 30 µm and 93.51 µm, compared to the control treatment, were 24 µm and 37.67 µm. The thickness of leaf organ mesophyll tissue was smaller (218 µm) compared to the control (481 µm) in 20 days of stress treatment. Drought stress caused shrinkage up to the destruction of mesophyll tissue cells and the formation of cavities between cells in the root cortex tissue.
