Abstract. Pikulthong V, Bhirompan S, Dechkla M, Mokkapan K, Boonman N, Wanna C, Machana K, Phakpaknam S. 2022. Local herbs for pain relief in the area of Tumbon Khao Hin Son, Chachoengsao, Thailand. Biodiversitas 23: 5012-5019. Local herbs have been used in Thailand for years. However, data collection on the use of local herbs in particular areas has not been thorough. This study aimed to survey local herbs treating pain relief in the area of Tumbon Khao Hin Son, Amphoe Phanom Sarakham, Chachoengsao, Thailand. Semi-structured interviews were used. Purposive sampling was used to determine the sample group. In the survey and study on botanical characteristics, from November 2019 - March 2020, 68 plants were identified and classified into 29 families. The local herbs which were mostly used for pain relief included 7 species from the Acanthaceae family, 6 types from Fabaceae, Lamiaceae, and 5 types from Zingiberaceae. The leaves of herbaceous plants had the highest frequency of use. A remedy, Ko-Klan, was found and prepared using a boiling method that could relieve pain. The surveyed herbs were used to treat 4 main symptoms which were body pain, stomachache, headache, and toothache. It was found that 36 species of herbs, or a majority of them, were used to directly relieve the pain. The interviews showed that 27% of the respondents had some home-grown herbs which were used for cooking and basic illness treatment. The age of the respondents was relevant to the use of herbs. The findings in this study will be the foundation for local herb studies which support and are aware of Thai local wisdom and knowledge as guidance to alter herbs for pharmaceutical purposes in the future.
Abstract. Homthong M, Kaewpuk W, Yamsuan S, Thongsima A, Mokkapan K, Pikulthong V. 2022. Screening of indole-3-acetic acid PGPB from three agricultural systems at Nakhon Pathom, Thailand. Biodiversitas 23: 5935-5941. Plant growth-promoting bacteria (PGPB) are associated with plant roots and enhance growth via a variety of mechanisms, including fixation of atmospheric nitrogen, solubilization of phosphorus, phytohormone synthesis, and plant phenolic compound stimulation. Sixty-five isolated bacteria from the three agricultural systems in Nakhon Pathom were screened for IAA production. The results showed that seven isolates—C01-28, C02-48, C02-51, G01-34, G03-25, G03-38, and O02-46—produced IAA under L-tryptophan as a precursor at values of 9.08 ± 0.51, 68.64 ± 29.07, 40.67 ± 18.04, 10.65 ± 1.07, 63.30 ± 1.15, 37.73 ± 1.80, and 121.28 ± 15.20 mg mL-1, respectively. Capability on plant growth-promoting traits revealed that none of the isolates stimulated ten-morning glory (Ipomoea aquatica Forsk.) seedling growth, which was not significantly different from the control. Isolates O02-46 enhanced salicylic acid (SA) in ten-morning glory seedlings the most, showing 7.18 ± 1.78 µg g-1 of fresh weight, while isolates G01-34 enhanced phenolic compound (PC) production the most showing 218.18 ± 29.55 mg GAE g-1 extract, respectively. The 16S rRNA analysis revealed that isolates O02-46, C02-48, G03-25, and C02-51 were identified as similar to Paenibacillus alvei at 99.20% (Accession number AY826588.1), Bacillus megaterium at 79.91% (Accession number MH031358.1), Bacillus sp. at 98.57% (Accession number JF322976.1), and Lysinibacillus fusiformis at 99.61% (Accession number HE610782.1).
Abstract. Wanna C, Boonman N, Phakpaknam S, Pikulthong V, Jaitrong W, Soi-Ampornkul R. 2022. Species diversity of subterranean ants in Rangsit Marsh, Khlong Luang District, Pathum Thani Province, Thailand. Biodiversitas 23: 1283-1292. The present study aimed to compare species diversity and abundance of subterranean ants in three habitats: scrub forest, forest plantations, and glades at Rangsit Marsh, Khong Luang District, Pathum Thani Province, Thailand. The ant samples were collected twice a month during the rainy season (June-August 2019) and dry season (September-November 2019) using a pitfall trap in the soil. A total number of 6,305 individuals belonging to 4 subfamilies, 16 genera, and 16 species of ants were recorded. The subfamilies Myrmicinae comprising 6 species were the most prevalent, followed by 4 species of Formicinae, 3 species of Dolichoderinae, and 3 species of Ponerinae. The Shannon-Wiener species diversity index indicated the diversity was the highest in the glade (1.951), followed by the forest plantation (1.635), and lastly the scrub forest (0.419). Sorensen’s similarity coefficient to determine the similarity in community composition was highest between the forest plantation and the glade at 63.40%, and then between the scrub forest and the forest plantation at 44.30%, and between the scrub forest and the glade at 39.60%. This indicated that both ant species diversity and community composition were distinctly varied in these three sites. The rainy season revealed higher species richness than the dry season. The highest occurrence of ant species was for Iridomyrmex anceps (Roger, 1863), which was recorded as uncommon and was the most abundant species in the glade, while Anoplolepis gracilipes (Smith, 1857) and Carebara diversa (Jerdon, 1851) were the most abundant species in the scrub forest and forest plantation, respectively. Therefore, this study revealed that different habitat types and seasons resulted in differences in subterranean ant species diversity.
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