Morphological, anatomical and antibacterial characteristics of Persicaria maculosa Gray plants growing in Lang Sen Wetland Reserve, Long An province, Vietnam

Phan Thi Kieu Mong 1, Huynh Nguyen Van Anh 2, Pham Van Ngot 1 and Dang Thi Ngoc Thanh 2, *

1 Faculty of Biology, HCMC University of Education, 280 An Duong Vuong Street, Ward 4, District 5, Ho Chi Minh City.
2 Faculty of Natural Science Pedagogy, Sai Gon University, 273 An Duong Vuong Street, Ward 3, District 5, Ho Chi Minh City, Vietnam.
 
Research Article
GSC Biological and Pharmaceutical Sciences, 2021, 17(03), 107–118.
Article DOI: 10.30574/gscbps.2021.17.3.0356
Publication history: 
Received on 11 November 2021; revised on 13 December 2021; accepted on 15 December 2021
 
Abstract: 
This study aimed to understand the adaptation characteristics of species Persicaria maculosa to living conditions and to add data on them as folk medicinal plants of Vietnam. Research methods included analysis of external morphological characteristics and microscopic structure of stems, leaves and roots. The antibacterial activities of ethanol plant extracts on four bacterial strains were also conducted through agar well diffusion method. The results showed that the plants had formed morphological and anatomical features to adapt to waterlogging and shade conditions. The leaf extracts from the concentrations of 600 to 1,000 mg/L had bacteriostatic activities against all four experimental strains with the bacterial inhibition zones from 2.39 to 10.91 mm, in which inhibition of Bacillus cereus was the best.
 
Keywords: 
Bacterial inhibition zone; Lang Sen Wetland Reserve; Morpho-anatomical characteristics; Persicaria maculosa Gray; Plant extracts
 
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