Asian Journal of Microbiology, Biotechnology & Environmental Sciences Paper

Vol 20, Issue 2, 2018; Page No.(387-403)

VARIATION IN THE STOMATAL TYPES AND ANTICLINAL WALL PATTERNS IN MALAYSIAN SAPINDACEAE SPECIES

MOHD. NORFAIZAL, G., NORAINI, T., A. LATIFF, H. MASROM,SALMANIZA, S. AND M. R. NURSHAHIDAH1

Abstract

Sapindaceae is one of the main angiosperm plant families and this family includes 150 genera with ca. 2000 taxa that are widespread in the tropical and subtropical regions of the world. A study on the variation of stomatal types and anticlinal wall patterns was undertaken on 43 taxa belonging to 19 genera of Malaysian Sapindaceae. Results have shown that there were four types of stomata present and four types of anticlinal wall patterns exist in Malaysian Sapindaceae taxa. Stomata types consist of tetracytic, paracytic, staurocytic and anomocytic stomata. Whilst for the anticlinal wall patterns vary from sinuous, wavy, slightly curvy and straight patterns. A majority of species were having homostomatic and hipostomatic stomata, except for Lepisanthes amoena, Mischocarpus sundaicus, Nephelium cuspidatum var. robustum, Nephelium cuspidatum var. eriopetalum and Trigonachras acuta which have heterostomatic stomata feature. Stomatal index (SI) ranging between 2.5% – Litchi chinensis and the highest found in Dodonae a viscosa with SI 25.98%. The combination of stomatal types, anticlinal wall patterns and also in the stomatal index proved to have taxonomic value especially in assisting species identification for Malaysian Sapindaceae members.

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