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Kato-Noguchi H. Isolation and identification of allelochemicals and their activities and functions. JOURNAL OF PESTICIDE SCIENCE 2024; 49:1-14. [PMID: 38450087 PMCID: PMC10912975 DOI: 10.1584/jpestics.d23-052] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 10/29/2023] [Indexed: 03/08/2024]
Abstract
Allelopathy is the interaction between donor plants and receiver plants through allelochemicals. According to a great number of publications, allelopathy may be involved in several ecological aspects such as the formation of monospecific stands and sparse understory vegetation for certain plant species. Allelopathy also contributes to the naturalization of invasive plant species in introduced ranges. Autotoxicity is a particular type of allelopathy involving certain compounds. Many medicinal plants have been reported to show relatively high allelopathic activity. We selected plant species that show high allelopathic activity and isolated allelochemicals through the bioassay-guided purification process. More than 100 allelochemicals, including novel compounds have been identified in some medicinal and invasive plants, plants forming monospecific stands, plants with sparse understory vegetation, and plants showing autotoxicity. The allelopathic activity of benzoxazinones and related compounds was also determined.
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Affiliation(s)
- Hisashi Kato-Noguchi
- Department of Applied Biological Science, Faculty of Agriculture, Kagawa University
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Eissa MA, Hashim YZHY, Abdul Azziz SSS, Salleh HM, Isa ML, Abd Warif NM, Abdullah F, Ramadan E, El-Kersh DM. Phytochemical Constituents of Aquilaria malaccensis Leaf Extract and Their Anti-Inflammatory Activity against LPS/IFN-γ-Stimulated RAW 264.7 Cell Line. ACS OMEGA 2022; 7:15637-15646. [PMID: 35571776 PMCID: PMC9096934 DOI: 10.1021/acsomega.2c00439] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Accepted: 04/13/2022] [Indexed: 06/15/2023]
Abstract
This study aims to identify the major phytochemical constituents in Aquilaria malaccensis (Thymelaeaceae) ethanolic leaf extract (ALEX-M) and elucidate their ability to suppress nitric oxide (NO) production from a murine macrophage-like cell line (RAW 264.7) stimulated by lipopolysaccharide (LPS) and interferon-γ (IFN-γ). Dichloromethane (DCM) and ethyl acetate (EtOAc) fractions of ALEX-M were subjected to column chromatography. Eight known compounds were isolated for the first time from this species. Compounds were identified using spectroscopic techniques (IR, UV, HRESIMS, and 1D and 2D NMR). Anti-inflammatory activity of both extract and isolated compounds were investigated in vitro. The fractions offered the isolation of epifriedelanol (1), 5-hydroxy-7,4'-dimethoxyflavone (2), luteolin-7,3',4'-trimethyl ether (3), luteolin-7,4'-dimethyl ether (4), acacetin (5), aquilarinenside E (6), iriflophenone-2-O-α-l-rhamnopyranoside (7), and iriflophenone-3-C-β-glucoside (8). The findings suggest the pharmacological potential of the crude extract (ALEX-M) and its isolates as natural anti-inflammatory agents, capable of suppressing NO production in RAW 264.7 cells stimulated by LPS/IFN-γ.
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Affiliation(s)
- Manar A. Eissa
- International
Institute for Halal Research and Training (INHART), International Islamic University Malaysia, 53100 Gombak, Selangor, Malaysia
- Center
for
Drug Research and Development (CDRD), The
British University in Egypt (BUE), Cairo 11837, Egypt
| | - Yumi Z. H-Y. Hashim
- International
Institute for Halal Research and Training (INHART), International Islamic University Malaysia, 53100 Gombak, Selangor, Malaysia
| | - Saripah S. S. Abdul Azziz
- Faculty of
Science and Mathematics, Sultan Idris Education
University, 35900 Tanjung Malim, Perak, Malaysia
| | - Hamzah Mohd. Salleh
- International
Institute for Halal Research and Training (INHART), International Islamic University Malaysia, 53100 Gombak, Selangor, Malaysia
| | - Muhammad Lokman
Md. Isa
- Department
of Basic Medical Sciences for Nursing, Kulliyah of Nursing, International Islamic University Malaysia, 25200 Kuantan, Pahang, Malaysia
| | - Nor Malia Abd Warif
- Biomedical
Sciences Program, Faculty of Health Sciences, Universiti Kebangsaan Malaysia, 50300 Kuala Lumpur, Malaysia
| | - Fauziah Abdullah
- Phytochemistry
Program, Natural Products Division, Forest
Research Institute Malaysia, 52109 Kepong, Selangor, Malaysia
| | - Eman Ramadan
- Department
of Pharmacology and Toxicology, Faculty of Pharmacy, The British University in Egypt (BUE), Cairo 11837, Egypt
- Center
for
Drug Research and Development (CDRD), The
British University in Egypt (BUE), Cairo 11837, Egypt
| | - Dina M. El-Kersh
- Pharmacognosy
Department, Faculty of Pharmacy, The British
University in Egypt (BUE), Cairo 11837, Egypt
- Center
for
Drug Research and Development (CDRD), The
British University in Egypt (BUE), Cairo 11837, Egypt
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Chen X, Cao YG, Ren YJ, Wang MN, Liu YL, He C, Zheng XK, Feng WS. A new quinic acid derivative with α-glucosidase inhibitory activity from the fruit of Gardenia jasminoides J.Ellis. Nat Prod Res 2021; 36:2836-2842. [PMID: 34100675 DOI: 10.1080/14786419.2021.1933973] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
Abstract
A new quinic acid derivative (1) along with seven known compounds (2-8) were isolated from the fruit of Gardenia jasminoides J.Ellis. All the structures of the isolated compounds were elucidated on the basis of the analysis of multiple spectroscopic data. The α-glucosidase inhibitory effects of the isolated compounds were investigated. The results showed that compounds 1-3, 6, and 8 have moderate α-glucosidase inhibitory activities.
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Affiliation(s)
- Xu Chen
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China.,The Engineering and Technology Center for Chinese Medicine Development of Henan Province China, Zhengzhou, China
| | - Yan-Gang Cao
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China.,The Engineering and Technology Center for Chinese Medicine Development of Henan Province China, Zhengzhou, China
| | - Ying-Jie Ren
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China.,The Engineering and Technology Center for Chinese Medicine Development of Henan Province China, Zhengzhou, China
| | - Meng-Na Wang
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China.,The Engineering and Technology Center for Chinese Medicine Development of Henan Province China, Zhengzhou, China
| | - Yan-Ling Liu
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China.,The Engineering and Technology Center for Chinese Medicine Development of Henan Province China, Zhengzhou, China
| | - Chen He
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China.,The Engineering and Technology Center for Chinese Medicine Development of Henan Province China, Zhengzhou, China
| | - Xiao-Ke Zheng
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China.,The Engineering and Technology Center for Chinese Medicine Development of Henan Province China, Zhengzhou, China
| | - Wei-Sheng Feng
- School of Pharmacy, Henan University of Chinese Medicine, Zhengzhou, China.,The Engineering and Technology Center for Chinese Medicine Development of Henan Province China, Zhengzhou, China
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