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Plants produce several chemically diverse bioactive substances that may influence the growth and development of other organisms when released into the environment in a phenomenon called allelopathy. Several of these allelopathic species also have reported medicinal properties. In this study, the potential allelopathic effects of more than a hundred medicinal plants from Cambodia were tested using the dish pack method. The dish pack bioassay method specifically targets volatile allelochemicals. Twenty-five species were found to have significant inhibitory effects on lettuce radicle growth. Eleven different plant families, including Iridaceae (2), Apocynaceae (2), Poaceae (2), Sapindaceae, Araceae, Combretaceae, Orchidaceae, Clusiaceae, Zingiberaceae, Rutaceae and Asparagaceae had the plant species with high inhibitory effects. Allophyllus serrulatus had the highest growth inhibitory effect on lettuce radicles more than 60%, followed by Alocasia macrorrhiza, Iris pallida, Terminalia triptera, Wrightia tomentosa, Cymbidium aloifolium, Garcinia villersiana and Kaempferia parviflora. The candidate species were subjected to further studies to identify the volatile allelochemicals in the volatile constituents.
Yourk Sothearith; Kwame Sarpong Appiah; Hossein Mardani; Takashi Motobayashi; Suzuki Yoko; Khou Eang Hourt; Akifumi Sugiyama; Yoshiharu Fujii. Determination of the Allelopathic Potential of Cambodia’s Medicinal Plants Using the Dish Pack Method. Sustainability 2021, 13, 9062 .
AMA StyleYourk Sothearith, Kwame Sarpong Appiah, Hossein Mardani, Takashi Motobayashi, Suzuki Yoko, Khou Eang Hourt, Akifumi Sugiyama, Yoshiharu Fujii. Determination of the Allelopathic Potential of Cambodia’s Medicinal Plants Using the Dish Pack Method. Sustainability. 2021; 13 (16):9062.
Chicago/Turabian StyleYourk Sothearith; Kwame Sarpong Appiah; Hossein Mardani; Takashi Motobayashi; Suzuki Yoko; Khou Eang Hourt; Akifumi Sugiyama; Yoshiharu Fujii. 2021. "Determination of the Allelopathic Potential of Cambodia’s Medicinal Plants Using the Dish Pack Method." Sustainability 13, no. 16: 9062.
Phnom Kulen National Park, in north-western Cambodia, has huge richness in biodiversity and medicinal value. One hundred and ninety-five (195) medicinal plant species were collected from the national park to examine allelopathic potentials by using the sandwich method, a specific bioassay for the evaluation of leachates from plants. The study found 58 out of 195 medicinal plant species showed significant inhibitory effects on lettuce radicle elongation as evaluated by standard deviation variance based on the normal distribution. Three species including Iris pallida (4% of control), Parabarium micranthum (7.5% of control), and Peliosanthes teta (8.2% of control) showed strong inhibition of lettuce radicle elongation less than 10% of the control. The results presented could present as a benchmark for isolation and identification of allelochemicals among medicinal plants used in Cambodia.
Yourk Sothearith; Kwame Appiah; Takashi Motobayashi; Izumi Watanabe; Chan Somaly; Akifumi Sugiyama; Yoshiharu Fujii. Evaluation of Allelopathic Potentials from Medicinal Plant Species in Phnom Kulen National Park, Cambodia by the Sandwich Method. Sustainability 2020, 13, 264 .
AMA StyleYourk Sothearith, Kwame Appiah, Takashi Motobayashi, Izumi Watanabe, Chan Somaly, Akifumi Sugiyama, Yoshiharu Fujii. Evaluation of Allelopathic Potentials from Medicinal Plant Species in Phnom Kulen National Park, Cambodia by the Sandwich Method. Sustainability. 2020; 13 (1):264.
Chicago/Turabian StyleYourk Sothearith; Kwame Appiah; Takashi Motobayashi; Izumi Watanabe; Chan Somaly; Akifumi Sugiyama; Yoshiharu Fujii. 2020. "Evaluation of Allelopathic Potentials from Medicinal Plant Species in Phnom Kulen National Park, Cambodia by the Sandwich Method." Sustainability 13, no. 1: 264.