scholarly journals Evaluation of Allelopathic Activity of Chinese Medicinal Plants and Identification of Shikimic Acid as an Allelochemical from Illicium verum Hook. f.

Plants ◽  
2020 ◽  
Vol 9 (6) ◽  
pp. 684
Author(s):  
Aniya ◽  
Yoshihiro Nomura ◽  
Fuerdeng ◽  
Kwame Sarpong Appiah ◽  
Yoshiharu Fujii
Keyword(s):  
Medicinal Plants ◽  
Plant Species ◽  
Crude Extract ◽  
Shikimic Acid ◽  
Hypocotyl Growth ◽  
Radicle Growth ◽  
Allelopathic Potential ◽  
Star Anise ◽  
Chinese Medicinal Plants ◽  
Illicium Verum

This study focused on the potential allelopathy of 50 species of Chinese medicinal plants, which are mainly distributed in the Xinjiang Uyghur Autonomous Region, Inner Mongolia, and Yunnan Province. The “sandwich method” was adopted and used for the screening for allelopathic potential among these plant species. Further phytotoxic evaluation of the candidate species was conducted by applying plant extracts to crops and weed species. The results of this study indicated that among the 50 medicinal plant species evaluated, the fruits of Illicium verum Hook. f. (star anise) showed the most significant allelopathic potential through the leaf leachates. Shikimic acid was identified to be the main bioactive compound (about 7% dry weight) in star anise by reversed-phase High Performance Liquid Chromatography (RP-HPLC) analysis. The phytotoxic bioassay indicated that both the crude extract of the Chinese star anise and the synthetic shikimic acid showed strong inhibitory activity on the radicle and hypocotyl growth of lettuce. The radicle growth inhibition of lettuce caused by the crude extract of star anise could be explained by the contribution of the biological activity of shikimic acid. In conclusion, shikimic acid could be a putative allelochemical in the fruits of Illicium verum and could be utilized in sustainable weed management.

scholarly journals Screening for Plant Volatile Emissions with Allelopathic Activity and the Identification of L-Fenchone and 1,8-Cineole from Star Anise (Illicium verum) Leaves

Plants ◽  
2019 ◽  
Vol 8 (11) ◽  
pp. 457 ◽  
Author(s):  
Gaowa Kang ◽  
Maryia Mishyna ◽  
Kwame Sarpong Appiah ◽  
Masaaki Yamada ◽  
Akihito Takano ◽  
...  
Keyword(s):  
Volatile Compounds ◽  
Inhibitory Activity ◽  
Test Plant ◽  
Hypocotyl Growth ◽  
Allelopathic Potential ◽  
Volatile Emissions ◽  
Allelopathic Activity ◽  
Plant Volatile ◽  
Star Anise ◽  
Illicium Verum

One hundred and thirty-nine medicinal plant species were screened for their allelopathic activity through volatile emissions using Lactuca sativa as a test plant. Volatile emissions from the leaves of star anise (Illicium verum) showed the highest inhibition (100%) on the radicle and hypocotyl growth. Using headspace gas collection and gas chromatography-mass spectrometry (GC-MS), seven major volatile compounds from the leaves of star anise, including α-pinene, β-pinene, camphene, 1,8-cineole, D-limonene, camphor, and L-fenchone were detected. To determine volatile compounds that may contribute to the inhibitory activity of star anise, the allelopathic potential of individual volatiles from star anise was evaluated using the cotton swab bioassay. The EC50 was calculated for each of the seven identified compounds. L-fenchone showed the strongest growth inhibitory activity (EC50 is 1.0 ng/cm3 for radicle and hypocotyl growth of lettuce), followed by 1,8-cineole, and camphene. This is the first report that L-fenchone could be an important volatile allelochemical from the leaves of star anise. From the actual concentration of each volatile compound in headspace and EC50 value, we concluded that the four volatile compounds, including L-fenchone, 1,8-cineole, β-pinene, and camphene are the most important contributors to the volatile allelopathy of star anise.

scholarly journals UHPLC-(ESI)-HRMS and NMR-Based Metabolomics Approach to Access the Seasonality of Byrsonima intermedia and Serjania marginata From Brazilian Cerrado Flora Diversity

2021 ◽  
Vol 9 ◽  
Author(s):  
Ana C. Zanatta ◽  
Wagner Vilegas ◽  
RuAngelie Edrada-Ebel
Keyword(s):  
Medicinal Plants ◽  
Plant Species ◽  
Phenolic Acids ◽  
Shikimic Acid ◽  
Metabolite Profile ◽  
Native Plant ◽  
Brazilian Cerrado ◽  
Multivariate Statistical ◽  
Native Plant Species ◽  
Rich Diversity

Seasonality is one of the major environmental factors that exert influence over the synthesis and accumulation of secondary metabolites in medicinal plants. The application of the metabolomics approach for quality control of plant extracts is essentially important because it helps one to establish a standard metabolite profile and to analyze factors that affect the effectiveness of the medicinal plants. The Brazilian Cerrado flora is characterized by a rich diversity of native plant species, and a number of these plant species have been found to have suitable medicinal properties. Some of these plant species include Byrsonima intermedia and Serjania marginata. To better understand the chemical composition of these plant species, we conducted a study using the state-of-the-art techniques including the HPLC system coupled to an Exactive-Orbitrap high resolution mass spectrometer with electrospray ionization interface UHPLC-(ESI)-HRMS and by NMR being performed 2D J-resolved and proton NMR spectroscopy. For the analysis, samples were harvested bimonthly during two consecutive years. UHPLC-(ESI)-HRMS data were preprocessed and the output data uploaded into an in-house Excel macro for peak dereplication. MS and NMR data were concatenated using the data fusion method and submitted to multivariate statistical analysis. The dereplication of LC-HRMS data helped in the annotation of the major compounds present in the extracts of the three plant species investigated allowing the annotation of 68 compounds in the extracts of B. intermedia (cinnamic acids, phenolic acids derived from galloyl quinic and shikimic acid, proanthocyanidins, glycosylated flavonoids, triterpenes and other phenols) and 81 compounds in the extracts of S. marginata (phenolic acids, saponins, proanthocyanidins, glycosylated flavonoids among other compounds). For a better assessment of the great number of responses, the significance of the chemical variables for the differentiation and correlation of the seasons was determined using the variable importance on projection (VIP) technique and through the application of the false discovery rate (FDR) estimation. The statistical data obtained showed that seasonal factors played an important role on the production of metabolites in each plant species. Temperature conditions, drought and solar radiation were found to be the main factors that affected the variability of phenolic compounds in each species.

scholarly journals Determination of the Allelopathic Potential of Cambodia’s Medicinal Plants Using the Dish Pack Method

2021 ◽  
Vol 13 (16) ◽  
pp. 9062
Author(s):  
Yourk Sothearith ◽  
Kwame Sarpong Appiah ◽  
Hossein Mardani ◽  
Takashi Motobayashi ◽  
Suzuki Yoko ◽  
...  
Keyword(s):  
Medicinal Plants ◽  
Inhibitory Effect ◽  
Inhibitory Effects ◽  
Bioactive Substances ◽  
Radicle Growth ◽  
Allelopathic Potential ◽  
Growth Inhibitory ◽  
Volatile Allelochemicals ◽  
Plant Families ◽  
Cymbidium Aloifolium

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.

Allelopathic potential of Malaysian invasive weed species to control weedy rice (Oryza sativa f. spontanea Roshev)

2021 ◽  
Vol 53 (1) ◽  
pp. 53-68
Author(s):  
Mst. Motmainna ◽  
Abdul Shukor B Juraimi ◽  
Md Kamal Uddin ◽  
Norhayu Binti Asib ◽  
AKM Mominul Islam ◽  
...  
Keyword(s):  
Oryza Sativa ◽  
Survival Rate ◽  
Weedy Rice ◽  
Weed Species ◽  
Hypocotyl Growth ◽  
Hypocotyl Length ◽  
Invasive Weed ◽  
Radicle Growth ◽  
Allelopathic Potential ◽  
Methanolic Extracts

In laboratory bioassay, we studied the effects of methanolic extracts of 30-Malaysian invasive weed species (9 families) on the seeds survival rate and seedlings growth of Weedy rice (Oryza sativa f. spontanea Roshev). Five concentrations [6.25, 12.5, 25, 50, 100 (g L-1)] of methanolic extracts were used and control was distilled water. The Weedy rice seeds survival rate and seedlings growth (radicle and hypocotyl length) of 7-day-old seedlings were reduced by the increasing concentrations of extracts than control. Probit analysis and the concentrations required for 50% inhibition (EC50) showed that radicle growth was more suppressed than seeds survival rate and hypocotyl growth. Among the tested weed species, Parthenium hysterophorus L., Cleome rutidosperma DC. and Borrreria alata (Aubl.) DC. proved strongly allelopathic and thus, could be used to develop eco-friendly herbicides.

Rapid separation of shikimic acid from Chinese star anise (Illicium verum Hook. f.) with hot water extraction

2009 ◽  
Vol 69 (1) ◽  
pp. 102-108 ◽  
Author(s):  
Hiroki Ohira ◽  
Naota Torii ◽  
Taku M. Aida ◽  
Masaru Watanabe ◽  
Richard L. Smith
Keyword(s):  
Shikimic Acid ◽  
Hot Water ◽  
Water Extraction ◽  
Rapid Separation ◽  
Hot Water Extraction ◽  
Star Anise ◽  
Illicium Verum

scholarly journals Allelopathic screening of Malaysian noxious weeds and several medicinal plants as potential alleloherbicides

2021 ◽  
Vol 42 (3(SI)) ◽  
pp. 762-774
Author(s):  
M.S. Ishak ◽  
◽  
M.B. Nurul Ain ◽  
I. Sahid ◽  
K. Mardiana-Jansar ◽  
...  
Keyword(s):  
Medicinal Plants ◽  
Leaf Litter ◽  
Morphological Characteristics ◽  
Base Line ◽  
Lettuce Seed ◽  
Weed Species ◽  
Hypocotyl Growth ◽  
Allelopathic Potential ◽  
Noxious Weeds ◽  
Sandwich Method

Aim: This research was conducted to assess the allelopathic potential of 100 plants species, including noxious weeds and medicinal plants of Malaysia as donor plant on the growth of Lactuca sativa (lettuce) as the recipient plant. This study was also carried out to justify common weeds found in Malaysia to act as a natural herbicide for weed management through allelopathy phenomenon. Methodology: Weed and medicinal plant species commonly found in Malaysia were identified according to their morphological characteristics. Sandwich method was carried out to determine the allelopathic potential of weed species through leaf litter leachate mechanism. On the other hand, dish pack method was conducted to discover the allelopathic potential of weed species through volatilization pathway. Results: 100 weed species and medicinal plants commonly found in Malaysia inhibited the radicle and hypocotyl growth of L. sativa by both sandwich method and dish pack method. Among 100 weed species, Passiflora foetida showed the maximum inhibitory effects on L. sativa growth in both sandwich and dish pack method. The highest amount of P. foetida leaf litter (50 mg), completely inhibited the growth of radicle and hypocotyl of L. sativa. Volatilization of weed and medicinal plants leaf litter inhibited the growth of L. sativa with increasing distances of lettuce seed with the weed and medicinal plants leaf litter. Interpretation: The findings of this study provides a base line for identifying plants with allelopathic properties for controlling weed propagation.

Extraction and Phytochemicals Determination of Traditional Medicinal Plants for Anti-microbial Susceptibility Test

2020 ◽  
Vol 2020 ◽  
Author(s):  
Firew Admasu
Keyword(s):  
Antimicrobial Activity ◽  
Medicinal Plants ◽  
Traditional Medicine ◽  
Crude Extract ◽  
Susceptibility Test ◽  
Plant Sample ◽  
Traditional Medicinal Plants ◽  
Traditional Health Care ◽  
Susceptibility Tests

Abstract: The study were conducted at Dilla University, College of Natural Sciences, Biological Sciences laboratories. Background: Ethiopia is a country with many ethnic groups, cultures and beliefs which in turn have contributed to the high diversity of traditional health care knowledge and practices of traditional medicine from local growth plants, animals and minerals for various physical and mental disorders of human and livestock population that passed from generation to generation for centuries. Medicinal plants contributors to pharmaceutical, agricultural and food industries in the world. The use of medicinal plants in the industrialized societies has been traced to extraction and development of several drugs used in order to heel some diseases having inhibiting effect against pathogenic microorganism. Objective: The main objective of this study was Extraction and Phytochemicals determination of traditional medicinal plants for anti microbial susceptibility test. Methodology: The extraction and identification of some phytochemicals crude compound which used for antimicrobial susceptibility test from plant sample such as Ocimum lamiifolium (OL), Croton maerosth (Cm) and Ruta chalepesis (RC) were conducted. Plant samples are collected, powdered using mortal and pistil and extracted using ethanol and some susceptibility tests were performed to identify some phytochemicals compound. Result: The main result of Antimicrobial activity test showed that the crude extract of OL has the highest zone of inhibition. The highest yield of crude extract (38.21%) was obtained from Croton maerosth (CM) which followed by Ruta chalepesis (RC) (32.43%). However, the lowest yield (28.37%) was obtained from Oscpmum lamifolium (OL). Conclusion: Traditional Medicine is used by many people to managing numerous conditions; it’s accessible and effective on antimicrobial activity. Therefore, it plays a significant role by reducing life-threatening ailments of people and other animals.

Ethnopharmacological Survey of Medicinal Plants Used in the Traditional Treatment of Female Infertility in Fez Region, Morocco

2019 ◽  
Vol 18 (5) ◽  
pp. 321-339 ◽  
Author(s):  
M. Slighoua ◽  
I. Mahdi ◽  
F. Ez-zahra Amrati ◽  
S. Boukhira ◽  
A. EL Hamsas EL Youbi ◽  
...  
Keyword(s):  
Reproductive Health ◽  
Medicinal Plants ◽  
Plant Species ◽  
Rosmarinus Officinalis ◽  
Female Infertility ◽  
Mentha Pulegium ◽  
Traditional Treatment ◽  
Lavandula Officinalis

An ethnopharmacological survey was carried out among 224 informants to collect the information on medicinal plants used for the traditional treatment of female infertility in the Fes, Meknes and Boulemane region. In total, 63 plant species belonging to 29 families were used against female infertility. The most frequently cited plants were Lavandula officinalis (26.33%), Mentha pulegium (13.83%), Mentha suaveolens (11.16%), Rosmarinus officinalis (10.71%) and Petroselinum sativum (8.03%). Furthermore, the present study represents a useful documentation for the preservation of this knowledge about medicinal plants and for the amelioration of women reproductive health.

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