Screening Malaysian Endophytic Fungi for Antimicrobial and Antitumor Activity
Journal name: The Malaysian Journal of Medical Sciences
Original article title: Preliminary Screening of Endophytic Fungi from Medicinal Plants in Malaysia for Antimicrobial and Antitumor Activity
The Malaysian Journal of Medical Sciences (MJMS) is a peer-reviewed, open-access journal published online at least six times a year. It covers all aspects of medical sciences and prioritizes high-quality research.
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Son Radu, Cheah Yoke Kqueen
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The Malaysian Journal of Medical Sciences:
(A peer-reviewed, open-access journal)
Full text available for: Preliminary Screening of Endophytic Fungi from Medicinal Plants in Malaysia for Antimicrobial and Antitumor Activity
Year: 2002
Copyright (license): CC BY 4.0
Summary of article contents:
Introduction
Endophytic fungi, which exist within plant tissues, play a variable biological role, often forming mutualistic relationships with their host plants. These fungi can provide protection against herbivores and pathogens, and in some instances, may act as latent pathogens. In Malaysia, many local plants are traditionally valued for their medicinal properties, raising the question of whether these benefits are due to the plants themselves or influenced by endophytic relationships. This study aimed to isolate endophytic fungi from medicinal plants and evaluate their antimicrobial and antitumor activities.
Importance of Endophytic Fungi in Bioactivity
The research isolated 121 endophytic fungi from 62 different medicinal plants used by the local population, with a notable prevalence in leaves. The screening revealed varying sensitivity among microorganisms tested against the fungi extracts, with Bacillus subtilis, Saccharomyces cerevisiae, and Alternaria sp. showing susceptibility to extracts from specific endophytic fungi. Notably, none of the isolate extracts were effective against Salmonella typhimurium. Additionally, the study identified 16 fungal isolates demonstrating antitumor activity in a yeast cell-based assay, presenting potential leads for the development of novel bioactive agents. These findings suggest that endophytic fungi may produce metabolites with valuable antimicrobial and antitumor properties, highlighting their significance in natural product discovery.
Conclusion
The study underscores the potential of endophytic fungi as a source of bioactive compounds that may serve as alternatives to synthetic chemical agents for disease management. While some extracts exhibited substantial biological activity, others may contain active compounds in smaller quantities, pointing to the need for further investigation and purification of these extracts. Overall, the research contributes valuable insights into the complex interactions between endophytes and their plant hosts, reinforcing the importance of exploring endophyte-plant symbiosis for biodiversity and therapeutic applications. Future studies should focus on optimizing conditions for the production of secondary metabolites to harness the full potential of these microorganisms.
FAQ section (important questions/answers):
What was the purpose of the study on endophytic fungi?
The study aimed to screen antimicrobial and antitumor activities of isopropanol extracts from endophytic fungi isolated from medicinal plants in Malaysia.
What types of microorganisms were tested for antimicrobial activity?
The microorganisms tested included Gram-positive bacteria like Bacillus subtilis, Gram-negative bacteria like Salmonella typhimurium, yeast such as Saccharomyces cerevisiae, and fungi like Alternaria sp.
Which fungi showed positive results for antitumor activity?
Sixteen endophytic fungal isolates exhibited antitumor activity in a yeast cell-based assay, with notable activities from certain strains grown in specific media.
How were endophytic fungi isolated from the plants?
Isolation involved washing leaf and branch samples, surface sterilization, and placing them on potato dextrose agar to encourage fungal growth over three weeks.
Glossary definitions and references:
Scientific and Ayurvedic Glossary list for “Screening Malaysian Endophytic Fungi for Antimicrobial and Antitumor Activity”. This list explains important keywords that occur in this article and links it to the glossary for a better understanding of that concept in the context of Ayurveda and other topics.
1) Activity:
Activity refers to the biological effects exhibited by the endophytic fungi extracts, which can include antimicrobial and antitumor effects. The ability to inhibit or kill bacteria, fungi, or yeast indicates the potential therapeutic applications of these extracts in combating various ailments, showcasing the ecological significance of these microorganisms.
2) Medium:
Medium refers to the nutrient solutions in which the endophytic fungi were cultured. Different growth media like F-4 and PD-Y provide essential nutrients for fungal growth and metabolite production. The choice of medium can influence the yield and bioactivity of the compounds produced, which are critical for subsequent tests.
3) Study (Studying):
Study represents the systematic investigation conducted to understand the antimicrobial and antitumor properties of endophytic fungi isolated from Malaysian medicinal plants. It encompasses the methodology, analyses, and evaluations of collected data to derive meaningful conclusions about the bioactivities of these fungi and their applications in medicine.
4) Substance:
Substance refers to the active compounds produced by endophytic fungi that exhibit biological activity. The research highlights the importance of isolating and characterizing these substances for their potential use as antimicrobial or antitumor agents, contributing to the discovery of novel biologically active compounds from natural sources.
5) Table:
Table signifies the structured presentation of data that summarizes the various endophytic fungi isolated and their corresponding biological activities. This organized format facilitates easier understanding, comparisons, and evaluations of results among different fungal isolates and their efficacy against various microbes and cancer cell lines.
6) Antibiotic (Antibacterial):
Anti-bacterial indicates the function of specific compounds or extracts that counteract bacterial growth. The presence of anti-bacterial activity in the studied fungi highlights the potential for developing natural antimicrobial agents, providing valuable alternatives to synthetic antibiotics and contributing to public health strategies.
7) Disease:
Disease refers to any impairment of normal physiological function or health, often targeted by antibacterial or antitumor products derived from endophytic fungi. The study explores natural sources for effective treatment options against diseases affecting humans, plants, and possibly contributing to eco-friendly disease management strategies.
8) Water:
Water, as a solvent and medium component, is essential for the growth of endophytic fungi and extraction of metabolites. The study underscores the role of water in supporting biological reactions and metabolic activities within fungal cultures, which are crucial for examining their potential bioactive properties.
9) Drug:
Drug refers to a chemical substance used to treat or prevent diseases. The research showcases the exploration of bioactive compounds from endophytic fungi as potential drug candidates, aiming to harness natural products for pharmaceutical development and improve therapeutic options for various health conditions.
10) Purification:
Purification involves separating active compounds from crude extracts to obtain pure substances for further analysis. In this study, purification is crucial for isolating potential drugs from endophytic fungi, enabling the identification of specific bioactive agents effective against bacteria and tumors, which can lead to pharmaceutical advancements.
11) Observation:
Observation pertains to the systematic assessment of the fungal extracts' biological activities during the study. Careful observation of results, such as growth inhibition zones, enables researchers to evaluate the effectiveness of endophytic fungi and develop insights into their potential applications in medicine and treatment strategies.
12) Medicine:
Medicine represents the field focused on the diagnosis, treatment, and prevention of diseases. The study contributes to medicinal science by investigating endophytic fungi as a source of novel bioactive compounds, further pushing the boundaries of traditional practices and exploring natural alternatives for health care solutions.
13) Machang:
Machang refers to a location in Malaysia where traditional herbal medicine practices have been observed. The study acknowledges local geographical contexts, emphasizing the significance of traditional knowledge about medicinal plants from regions like Machang, fostering the integration of local plants in scientific research.
14) Account:
Account signifies the documentation or detailed report of findings generated through research. The study provides an account of various endophytic fungi, their isolation processes, biological activities, and the implications of these findings, contributing to a broader understanding of fungi-plant interactions within medicinal contexts.
15) Surface:
Surface refers to the outer layer of plant tissues from which endophytic fungi are isolated. The study highlights the importance of surface sterilization to prevent contamination and ensure that the isolated fungi were genuinely endophytic, thus validating the results on their bioactivities derived from healthy plant tissues.
16) Science (Scientific):
Science refers to the systematic pursuit of knowledge through observation, experimentation, and analysis. The study embodies scientific principles by adhering to rigorous methodologies in examining endophytic fungi, their characteristics, and bioactivities, which can lead to advancements in agriculture, medicine, and ecological understanding.
17) Camara (Cāmara, Camará):
Camara pertains to Lantana camara, a plant from which endophytic fungi were isolated in the study. The documented medicinal uses and folklore surrounding Lantana camara reinforce the plant's significance in traditional medicine, highlighted by its exploration for biologically active compounds with therapeutic potential.
18) Purity:
Purity signifies the absence of contaminants in fungal isolates, which is crucial for validating the biological activity of endophytic fungi. The study emphasizes the importance of maintaining purity during isolation and cultivation processes to ensure accurate assessments of the fungi's potential therapeutic properties.
19) Nature:
Nature refers to the natural environment encompassing plants and their associated microorganisms like endophytic fungi. The study explores the natural interactions between these organisms and emphasizes the potential benefits they confer on host plants, which can lead to the discovery of novel bioactive compounds for medicinal use.
20) Animal:
Animal refers to multicellular organisms that may be susceptible to diseases that can be treated using the antimicrobial and antitumor properties present in endophytic fungi. Understanding how these properties can impact animal health could lead to broader applications of findings in veterinary medicine.
21) Insect:
Insect denotes the organisms that may be affected by the antimicrobial properties of the extracts from endophytic fungi. The presence of these fungi in plants may provide natural defense mechanisms against insect infestations, highlighting their ecological role and potential benefits in sustainable agriculture.
22) Liquor:
Liquor in the context of the study refers to culture mediums like PD-Y containing nutrients that promote fungal growth. It plays an important role in the extraction process of bioactive metabolites. The composition of liquor influences the yield and quality of obtained compounds for further biological testing.
23) Botany:
Botany is the branch of biology focused on plant study, including their structure, properties, and biochemical processes. The research intersects with botany by investigating medicinal plants and associated endophytic fungi, contributing to understanding plant-microorganism interactions and their implications for potential medicinal applications.
24) Sidhu (Sīdhu, Shidhu, Śīdhu):
Sidhu refers to a contributor to the research, potentially a researcher or author involved in studying endophytic fungi. Collaboration among experts is essential in multidisciplinary fields like biotechnological and pharmacological research, ultimately enriching the study's findings and driving future investigations.
25) Field:
Field refers to the specific area of research or study. In this context, it highlights the investigation into fungal endophytes and their bioactivities. Understanding this field is critical for discovering novel antimicrobial substances and potential therapeutic agents that can combat drug-resistant organisms.
26) Naga (Nāga, Nag, Nāgā):
Naga represents a local term associated with certain medicinal plants in Malaysia. Recognizing local terminology enriches the cultural context of the study, emphasizing the importance of indigenous knowledge and practices in the ongoing exploration of natural products for medicinal purposes.
27) Lada (Lāḍa):
Lada refers to Piper nigrum, commonly known as black pepper. The inclusion of Lada emphasizes the diverse range of medicinal plants studied for their endophytic fungi. Exploring widely used plants such as Lada supports the quest for discovering effective natural antimicrobial or antitumor agents.
28) Bisa (Bisha):
Bisa illustrates the significance of certain medicinal plants like Barleria lupulina in the Malaysian context. Highlighting these plants and their endophytes showcases the rich biodiversity within the region and opens avenues for researching bioactive compounds that could serve as valuable therapeutic agents.
29) Tree:
Tree suggests the focus on woody plants that often host endophytic fungi. Trees play a vital role in ecosystems, and understanding the relationships between these organisms can contribute to discovering biologically active compounds, promoting sustainable practices in forestry, and enhancing biodiversity conservation efforts.
Other Health Sciences Concepts:
Discover the significance of concepts within the article: ‘Screening Malaysian Endophytic Fungi for Antimicrobial and Antitumor Activity’. Further sources in the context of Health Sciences might help you critically compare this page with similair documents:
Tongkat ali, Medicinal plant, Active principle, Natural product, Traditional medicine, Antibacterial activity, Bioactive substances, Antimicrobial activity, Biological Activity, Antifungal activity, Disease management, Secondary metabolite, Anti tumor activity, Antitumor activity, Gram positive bacteria, Gram negative bacteria, Positive control, Potato Dextrose Agar, Bioactivity, Saccharomyces cerevisiae, Anti bacterial activity, Extract preparation, Synthetic chemicals, Antifungal activities, Plant metabolites, Endophytic fungi, Bacillus subtilis, Biological control, Antimicrobial test, Antimicrobial potency, Disc diffusion assay, Salmonella typhimurium, Ecological conditions, Mutualistic relation, Anti-microbial agent, Natural products screening, Bioactivity screening, Natural products discovery, Alternaria sp., Medicinal plants use, Mutualistic relationships.