The variation of cystoliths and its taxonomic significance in Acanthaceae of Peninsular Malaysia

Siti Maisarah Zakaria, and Che Nurul Aini Che Amri, and Noraini Talip, and Abdul Latiff, and Amirul Aiman Ahmad Juhari, and Rozilawati Shahari, and Nur Shuhada Tajudin, and Mohamad Ruzi Abdul Rahman, (2020) The variation of cystoliths and its taxonomic significance in Acanthaceae of Peninsular Malaysia. Malaysian Applied Biology, 49 (5). pp. 25-31. ISSN 0126-8643


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The foliar anatomical studies of 41 species of Acanthaceae from Peninsular Malaysia had been carried out. This study aims to identify the morphology and distributions of cystoliths in leaf anatomy and their taxonomic values in species studied of Acanthaceae. The foliar anatomical study involved procedures such as cross-section by using sliding microtomes on the petiole, lamina, and midrib, epidermal peel, leaf clearing, and observation under a light microscope. The finding in this study showed four types of cystoliths present in all species studied except in Acanthus, Staurogyne, Thunbergia, and Avicennia. Generally, they are present in lamina, petiole, and midrib but differ in shapes and sizes. Four types of cystolith cells are either solitary with round cystoliths, solitary with elongated cystoliths with blunt extremities, solitary with elongated cystoliths with one end pointed, or solitary with a point at both ends. However, this type of cystoliths is varied even within the same species either in petiole, midrib, or lamina. In conclusion, results showed that the occurrence and variation of cystolith cells have a taxonomic significance which can be used in identification and classification either at genus or species level in Acanthaceae.

Item Type:Article
Keywords:Cystolith cells; Leaf anatomy; Taxonomic significance; Acanthaceae
Journal:Malaysian Applied Biology Journal
ID Code:17381
Deposited By: ms aida -
Deposited On:26 Aug 2021 00:42
Last Modified:30 Aug 2021 03:18

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