Antifungal effects of mahogany seed extracts on pawpaw rot.
Journal name: World Journal of Pharmaceutical Research
Original article title: Antifungal activities of seed extracts of mahogany on carica papaya (pawpaw) fruit rot in mubi, adamawa state
The WJPR includes peer-reviewed publications such as scientific research papers, reports, review articles, company news, thesis reports and case studies in areas of Biology, Pharmaceutical industries and Chemical technology while incorporating ancient fields of knowledge such combining Ayurveda with scientific data.
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Magga Bamanga and Zakawa N. Ngida
World Journal of Pharmaceutical Research:
(An ISO 9001:2015 Certified International Journal)
Full text available for: Antifungal activities of seed extracts of mahogany on carica papaya (pawpaw) fruit rot in mubi, adamawa state
Source type: An International Peer Reviewed Journal for Pharmaceutical and Medical and Scientific Research
Doi: 10.20959/wjpr201814-12815
Copyright (license): WJPR: All rights reserved
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Summary of article contents:
Introduction
The study focuses on the antifungal activities of seed extracts from Khaya senegalensis (mahogany) against fungal pathogens associated with the postharvest rot of Carica papaya (pawpaw) fruits in Mubi, Adamawa State, Nigeria. Pawpaw is a crucial fruit crop valued for its nutritional content and economic importance. However, postharvest losses due to fungal infections threaten both the fruit's marketability and consumer safety. The research identifies four major fungal pathogens responsible for the rot of pawpaw and evaluates the effectiveness of mahogany seed extracts in inhibiting these pathogens.
Fungal Pathogens Associated with Papaya Rot
The study identified four fungal pathogens - Rhizopus stolonifer, Botryodiplodia theobromae, Aspergillus niger, and Mucor spp. – as the main culprits behind the postharvest rot of papaya in various markets within the Mubi Local Government Area. Different markets showed varying levels of rot incidence, with Kuturu Market recording the highest at 26.77%. The research highlights the economic implications of these fungal infections on pawpaw production and trade, as the affected fruits result in substantial losses and may pose health risks to consumers due to the potential presence of mycotoxins.
Antifungal Efficacy of Khaya senegalensis Seed Extracts
The study explored the antifungal efficacy of Khaya senegalensis seed extracts both in vitro and in vivo. The seed extracts were prepared at different concentrations (0%, 20%, 40%, 60%, 80%, and 100%) and tested against the isolated fungal pathogens. Results indicated a significant inhibition of fungal growth, particularly with the higher concentrations of the extracts. The most effective concentration against Aspergillus niger was found to be 100%, but it also demonstrated varied levels of effectiveness against the other pathogens. This suggests that Khaya senegalensis has potential applications in managing fungal infections in papaya postharvest.
Pathogenicity Testing and Disease Severity Assessment
Pathogenicity tests confirmed that the isolated fungi were virulent on papaya fruits. A visual scale measuring disease severity stratified infections into various categories based on the percentage of fruit affected. The recorded disease severity and incidence rates reveal critical insights into the health of pawpaw fruits within the local markets. This assessment provides a quantitative basis for the potential deployment of antifungal treatments, highlighting the pressing need for integrated pest management strategies to combat the identified pathogens.
Conclusion
This research underscores the significant threat posed by fungal pathogens to the postharvest quality of pawpaw fruits in Adamawa State. It establishes Khaya senegalensis seed extracts as a promising natural antifungal agent capable of controlling these pathogens, thereby offering a potential solution for reducing postharvest losses in pawpaw production. The findings advocate for further studies to optimize the use of such botanical extracts in agricultural practices, ensuring not only the sustainability of pawpaw farming but also the health and safety of consumers.
FAQ section (important questions/answers):
What is the main focus of the study on papaya fruit?
The study investigates the antifungal activities of seed extracts from Khaya senegalensis on Carica papaya (pawpaw) fruit rot caused by various fungal pathogens.
How were the fungi associated with papaya rot identified?
Fungal pathogens were isolated from infected papaya fruits using industrial PDA media and identified based on their colonial morphology and microscopic characteristics.
What concentrations of Khaya senegalensis seed extracts were tested?
The study tested six different concentrations of seed extracts: 0%, 20%, 40%, 60%, 80%, and 100% to determine their effectiveness in inhibiting fungal growth.
Which markets were surveyed for papaya fruit rot?
Papaya fruits were collected from Kuturu Market, Mubi Main Market, and Mubi New Market in the Mubi Local Government Area of Adamawa State.
What were the main fungal pathogens identified in the study?
Four pathogens were identified: Rhizopus stolonifer, Botryodiplodia theobromae, Aspergillus niger, and Mucor spp., which caused postharvest rot in papaya fruits.
What was the impact of Khaya senegalensis seed extracts on fungi?
The seed extracts of Khaya senegalensis significantly inhibited the growth of all four fungal isolates both in vitro and in vivo, with varying degrees of effectiveness.
Glossary definitions and references:
Scientific and Ayurvedic Glossary list for “Antifungal effects of mahogany seed extracts on pawpaw rot.”. 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) Table:
Table refers to a structured arrangement of data, often used in research articles to present findings clearly. In the context of this study, tables were used to summarize the incidence and virulence of fungal pathogens in various markets, aiding in comparative analysis of the results derived from different sample collections.
2) Disease:
Disease pertains to a pathological condition that affects the normal functioning of tissues or organs, often leading to symptoms. In this study, disease specifically refers to the rot of Carica papaya fruits caused by various fungal pathogens, which can impact fruit quality and agricultural productivity.
3) Water:
Water is a vital component for all biological processes, including the growth of plants. The study highlights the use of distilled water in the preparation of aqueous seed extracts and the role of moisture in the development of fungal pathogens affecting papaya, thus underlining its importance in agriculture.
4) Harvesting (Harvest):
Harvest refers to the process of gathering mature crops from the fields. In this paper, it relates to the collection and examination of Carica papaya fruits for rot assessment, emphasizing the significance of post-harvest management in preventing losses due to fungal infections.
5) Study (Studying):
Study denotes a systematic investigation aimed at discovering or enhancing knowledge. This particular study investigates the antifungal activities of Khaya senegalensis seed extracts on rot diseases of papaya fruits, contributing valuable insights into potential agricultural practices for enhancing fruit preservation.
6) Post:
Post signifies after an event has occurred. In this context, it relates to the post-harvest phase, focusing on the decay and rot of papaya fruits following their collection. Effective post-harvest management is crucial to minimize losses caused by fungal infections, ensuring marketable fruit.
7) Science (Scientific):
Scientific relates to the systematic study and application of knowledge based on observation, experimentation, and analysis. This research adopts a scientific methodology to assess the antifungal efficacy of plant extracts, contributing to the broader field of phytopathology.
8) Food:
Food constitutes any substance consumed to provide nutritional support to the body. This research highlights pawpaw as an important food source in Nigeria, underscoring the need to mitigate postharvest losses from fungal diseases to ensure food security and nutritional availability for the local population.
9) Crop:
Crop refers to cultivated plants grown for food or other purposes. This study focuses on the papaya (Carica papaya) as a significant crop in Nigeria, affected by fungal pathogens, highlighting the importance of crop protection measures to maintain agricultural productivity.
10) Life:
Life embodies the characteristics that distinguish living organisms from inanimate matter. In this context, the study of Carica papaya and its interactions with pathogens informs agricultural practices that sustain life through food production, reinforcing the interplay between biology and agriculture.
11) Azadirachta indica:
Azadirachta indica, commonly known as neem, is a tree known for its medicinal properties and pest-repellent qualities. Though not the primary focus of this study regarding papaya, its reference suggests potential exploration of alternative plant extracts for managing post-harvest diseases.
12) Agriculture:
Agriculture is the science and art of cultivating plants and livestock. This study contributes to agricultural science by exploring antifungal strategies that can help enhance the sustainability of papaya farming in Nigeria by reducing postharvest losses due to fruit rot.
13) Activity:
Activity refers to actions or behaviors that result in a specific outcome. In scientific research, including this study, activity often pertains to the effectiveness of certain treatments—in this case, the antifungal activity of Khaya senegalensis extracts against pathogens affecting papaya fruit.
14) Relative:
Relative denotes a comparative term usually describing relationships or connections between entities. In this research context, it might relate to the relative effectiveness of different concentrations of seed extracts or the comparative incidence of fruit rot across various markets.
15) Species:
Species refers to a group of living organisms capable of interbreeding and producing fertile offspring. In the study, various fungal species are identified as pathogens affecting Carica papaya, emphasizing the significance of species differentiation for appropriate disease management strategies.
16) Mineral:
Minerals are inorganic substances essential for numerous biological processes. The reference to minerals in the context of papaya fruit highlights their nutritional importance and underscores the need for healthy crops, further motivating research into effective disease control methods.
17) Surface:
Surface pertains to the outermost layer of an object or material. In this research, it may refer to the need for surface sterilization of papaya fruits to eliminate pathogens before experimentation, showcasing the importance of sanitation in managing postharvest diseases.
18) Insect:
Insects refer to a diverse group of arthropods, significant in agriculture both as pollinators and pests. The research indirectly connects to insect interactions by studying fungal pathogens that can devastate agricultural crops, reinforcing the need for integrated pest management.
19) Powder:
Powder refers to a substance made up of finely ground particles. In this study, the powder from Khaya senegalensis seeds may be referenced in exploring its antifungal properties, suggesting different forms of extract utilized for testing efficacy against pathogens.
20) Botany:
Botany is the scientific study of plants, encompassing their physiology, structure, genetics, ecology, and economic importance. This study draws from botany principles to investigate the antifungal properties of plant extracts, contributing to the knowledge of plant-based disease management in agriculture.
21) Mango:
Mango, like papaya, is another important tropical fruit. Its mention could indicate broader implications of fungal infections affecting multiple fruits, suggesting that strategies found effective in papaya may have potential applications in protecting mango and other similar crops from disease.
22) Tree:
Tree refers to a woody perennial plant, often characterized by a trunk and branches. The study of Khaya senegalensis highlights its significance as a tree species from which seed extracts may provide natural antifungal properties, linking tree biology to agricultural practices.
23) Worm:
Worm typically refers to various elongated, soft-bodied animals. In this context, it may pertain to mentioning the medicinal usage of papaya seeds as anthelmintics against worm infections, indirectly emphasizing the relevance of plant extracts in human and veterinary medicine.
24) Discussion:
Discussion is a critical element in scientific writing where researchers interpret their findings and examine implications. In this study, the discussion section analyzes the antifungal effects of Khaya senegalensis, linking research results to existing literature and potential agricultural practices.
25) Observing:
Observing entails monitoring or studying in order to gather data or insights. In this study, observing the interactions between Carica papaya and various fungal pathogens is essential for understanding disease dynamics and developing effective control measures for fruit rot.
26) Toxicity:
Toxicity refers to the degree to which a substance can harm living organisms. The study's mention of toxicity may pertain to the potential risks associated with fungal metabolites found in contaminated fruits, emphasizing the need for safe consumption and management of agricultural products.
27) Krishna (Krsna):
Krishna here may refer to an author or researcher noted in the study. The inclusion of various researchers provides credence to the research, linking this work to broader scientific discourse and demonstrating collaborative efforts in investigating plant-based antifungal properties.
28) Wounded:
Wounded refers to the act of inflicting damage, often in reference to plant tissues. In this study, artificially wounding papaya fruits serves as a method for assessing the pathogenicity of fungal isolates, playing a crucial role in understanding disease progression.
29) Animal:
Animal refers to multicellular organisms that are heterotrophic and involve complex interactions within ecosystems. The mention of animals could point to considerations regarding the effects of antifungal treatments on animal health and safety, particularly when plant extracts are employed in agriculture.
30) Kumari:
Kumari may refer to an author or collaborator involved in the research study. This inclusion underscores the collaborative nature of scientific research, showcasing multiple perspectives and expertise contributing to understanding antifungal properties in plant extracts.
31) Trader:
Trader refers to individuals engaged in the commerce of goods. In the context of this research, traders play a crucial role in market dynamics around papaya distribution, highlighting the economic implications of fungal diseases on fruit sales and food security.
32) Mathura (Mathur):
Mathur likely refers to a researcher cited in the study for their contribution to the topic. Including prior studies aids in validating the current research findings, establishing continuity in scientific inquiry regarding plant diseases and management practices.
33) Cotton:
Cotton refers to the soft, fluffy fiber produced by cotton plants. While not a focus of this study, its mention might suggest parallels in agricultural practices or pest management strategies relevant to both cotton and other crop plants like papaya.
34) Cilli:
Chilli refers to the spicy fruit used in various cuisines and as a source of capsaicin. Its reference may indicate research connections where findings and methodologies for managing pests and diseases in chilli cultivation can resonate with those in papaya production.
35) Gupta:
Gupta denotes a cited author whose previous research adds weight to the current investigation. Their contributions enhance the academic context, fostering a wider understanding of fungal interactions and necessary interventions in agriculture as related to papaya health.
36) Ulcer:
Ulcer describes an open sore or lesion on the skin or mucous membranes. The mention may highlight medical uses for papaya components or other plants, suggesting broader applications of the research findings beyond agriculture, potentially into pharmaceutical realms.
37) Trade:
Trade refers to the exchange of goods and services. This aspect is crucial in the context of the study, as it highlights the economic ramifications of postharvest diseases in papaya, illustrating the vital nature of effective agricultural practices within market systems.
38) Field:
Field indicates an area of open land, particularly for agriculture. In this context, it underscores the environmental factors influencing crop health, as the study examines the interactions of papaya crops with pathogens in their natural growing environments.
39) Neem:
Neem (Azadirachta indica) is significant for its pest-repelling and medicinal properties. This mention suggests an interest in exploring natural controls for pests and diseases, highlighting the relationship between traditional knowledge and contemporary agricultural practices in managing fungal infections.
40) Meat:
Meat refers to animal flesh that is consumed as food. The mention of meat could be linked to discussions on using plant extracts, including those derived from Khaya senegalensis, in food processing or preservation, emphasizing broader contexts of consumption safety.
41) Line:
Line may refer to a lineage or group of genetic material. In this research context, it could pertain to breeding lines of papaya or other crops that demonstrate specific attributes in handling diseases, thus impacting agricultural strategies.
42) Drug:
Drug refers to any substance used to treat or prevent disease. In this study, references to drugs may relate to the potential medicinal applications of plant extracts, such as Khaya senegalensis, which could serve as natural antifungals in disease management.
43) Dish (Dis):
Dish typically refers to a shallow container in which food is served or cooked. In the research, Petri dishes are utilized for culturing fungal pathogens and testing the antifungal efficacy of extracts, representing fundamental tools in microbiological studies.
Other Science Concepts:
Discover the significance of concepts within the article: ‘Antifungal effects of mahogany seed extracts on pawpaw rot.’. Further sources in the context of Science might help you critically compare this page with similair documents:
Carica papaya, Khaya senegalensis, In vitro, Aspergillus niger, Sample collection, Disease incidence, In vivo, Industrial use, Concentration levels, Nutritional content, Aqueous seed extract, Antifungal efficacy, Rhizopus stolonifer, Disease severity, Botryodiplodia theobromae, PDA, Fungal Pathogen.