Morphoanatomical profile of five species of Piper L. from Bangladesh and its taxonomic significance

Abstract

The present study explores detailed morphoanatomical features of five species of Piper L., viz. P. betle L., P. longum L., P. nigrum L., P. retrofractum Vahl and P. sylvaticum Roxb. Each species is supplemented by detailed updated nomenclature, vernacular names, diagnostic characters, phenology, ecology and representative specimens. Maximum number of cortical and medullary vascular bundles have been observed in P. nigrum and P. retrofractum, respectively. In contrast, minimum number of cortical and medullary vascular bundles have been found in P. sylvaticum. Glandulartrichomes are found on the midrib of P. betle, P. longum, and P. sylvaticum, whereas trichomes are lacking in P. nigrum and P. retrofractum. The highest number of collateral vascular bundles have been found in P. retrofractum followed by P. nigrum, while P. betle and P. longum contain single collateral vascular bundle. P. betle can easily be distinguished from other species by its oval stem, non-glandular multicellular trichome with pointed tip, and presence of idioblasts and oil droplets. P. longum is distinct from remaining species by its diacytic stomata. Keys to the species based on morphological and anatomical characters are provided for easy identification of the studied species.

A comparative anatomical investigation of three taxa of Brassica L. from Bangladesh

“…campestris. Trichomes basically serve as defense tissue and provide worthy anatomical features to characterize species (Shethi et al, 2019). Therefore, it may be considered that the size and shape and presence or absence of trichomes may provide information to recognize the species of Brassica genus.…”

Investigation of the Antibacterial, Anti-Biofilm, and Antioxidative Effect of Piper betle Leaf Extract against Bacillus gaemokensis MW067143 Isolated from Dental Caries, an In Vitro-In Silico Approach

“…Piper betle L. is a perennial native plant to Asian and Southeast Asian countries [19]. It has characteristic heart-shaped leaves and is a member of the Piperaceae family, which houses more than a thousand plant species routinely found and grown in countries like India, Sri Lanka, and Bangladesh [20]. Moreover, it has been used as a medicinal plant as its therapeutic potential has been reported in many studies conducted over the years.…”