The vapour action of essential oils and monoterpenoids against pathogenic fungi

Sugar Tech ◽  
2002 ◽  
Vol 4 (1-2) ◽  
pp. 69-71 ◽  
Author(s):  
Gurdip Singh ◽  
Om Prakash Singh ◽  
G. P. Rao ◽  
S. R. Sharma
Keyword(s):  
Essential Oils ◽  
Pathogenic Fungi ◽  
Vapour Action

scholarly journals Antimicrobial activity of essential oils on pathogenic fungi

2017 ◽  
Vol 9 (3) ◽  
Author(s):  
Daniele Aparecida do Couto ◽  
Felipe Da Silva Dias ◽  
Mírian Lobo Sáber
Keyword(s):  
Essential Oils ◽  
Eucalyptus Globulus ◽  
Plant Pathogens ◽  
Pathogenic Fungi ◽  
Human Beings ◽  
Cymbopogon Winterianus ◽  
Callistemon Viminalis ◽  
Pathogenic Agents ◽  
Citronella Grass ◽  
Mycelial Development

Since the induction of chemical defensives in agriculture, human beings have suffered from our own actions, caused by the indiscriminate and abusive use of those substances; therefore, researches have been motivated to look for alternative ways, aiming to use plant inputs to control pathogenic agents in agriculture. As the essential oils from the species Eucalyptus globulus (eucalyptus), Callistemon viminalis (weeping bottlebrush), Cymbopogon winterianus (citronella grass) and Tetradeniariparia (misty plume bush) have proved effectiveness and an immense applicability, this research studied the use of those essential oils, aiming the effectiveness against plant pathogens. The plants were collected from Universidade do Vale do Sapucaí, Pouso Alegre (MG). The fungi’s samples belong to the mycology collection from the institution and the tests were based on the mycelial development comparison of the control fungi on the dishes with essential oils. Notice that the inhibition caused by the oils over fungi’s mycelial developing and the analysis of the data have been made through Turkey’s statistic. From the data analyzed, it was possible to realize that the citronella’s grass essential oil was efficient to control the mycelial development of fungi analyzed, followed by, in order of efficiency, the eucalyptus oil, the weeping bottlebrush oil and the misty plume bush oil.

scholarly journals Effects of Essential Oils on in Vitro Growth of Fungi Cladobotryum dendroides and Mycogone perniciosa Infecting Button Mushroom

2021 ◽  
Vol 28 (3) ◽  
pp. 411-427
Author(s):  
Romuald Górski ◽  
Hanna Dorna ◽  
Agnieszka Rosińska ◽  
Dorota Szopińska ◽  
Alina Kałużewicz
Keyword(s):  
Essential Oils ◽  
Agaricus Bisporus ◽  
Pathogenic Fungi ◽  
Complete Inhibition ◽  
Button Mushroom ◽  
Lavender Oil ◽  
Tea Tree ◽  
Growth Of Fungi ◽  
Chemical Fungicides

Abstract The aim of the studies was to investigate the effect of camel grass, lavender, patchouli, peppermint and tea tree essential oils, and their mixtures on the in vitro growth of pathogenic fungi Cladobotryum dendroides and Mycogone perniciosa, occurring in the cultivation of button mushroom (Agaricus bisporus). The mycelial growth of the tested pathogens was evaluated on PDA medium. Essential oils were added in three doses: 0.25; 0.5 and 1 mg·cm–3 of PDA medium. Camel grass and peppermint essential oils applied at the highest dose inhibited completely the in vitro growth of C. dendroides mycelium. Lavender oil used at the amount of 1 mg·cm–3 reduced the growth of the pathogen by 90 %. In the case of M. perniciosa the complete inhibition of the pathogen’s growth was observed after the addition of camel grass oil to PDA medium, irrespective of a dose, and lavender oil at the doses of 0.5 and 1 mg·cm–3. The efficacy of the tested mixtures against M. perniciosa was high. Generally, all mixtures of essential oils, irrespective of a dose, completely controlled the growth of the pathogen. The complete inhibition of the growth of C. dendroides was observed only on the medium with the addition of the mixture of camel grass and peppermint oils at the highest dose. The conducted research showed that natural essential oils due to their antifungal properties could be useful in the Integrated Disease Management for the protection of button mushroom against diseases. They could be an effective alternative to synthetic chemical fungicides.

scholarly journals Chemical Composition and Biological Activities of Essential Oils of Pinus patula

2011 ◽  
Vol 6 (10) ◽  
pp. 1934578X1100601 ◽  
Author(s):  
Ismail Amri ◽  
Hamrouni Lamia ◽  
Samia Gargouri ◽  
Mohsen Hanana ◽  
Mariem Mahfoudhi ◽  
...  
Keyword(s):  
Gas Chromatography ◽  
Essential Oils ◽  
Biological Activities ◽  
Pathogenic Fungi ◽  
Plant Diseases ◽  
Gas Chromatography Mass Spectrometry ◽  
Pinus Patula ◽  
Flame Ionization ◽  
Total Oil

Essential oils isolated from needles of Pinus patula by hydrodistillation were analyzed by gas chromatography-flame ionization detection (GC-FID) and gas chromatography mass spectrometry (GC-MS). Thirty-eight compounds were identified, representing 98.3% of the total oil. The oil was rich in monoterpene hydrocarbons (62.4%), particularly α-pinene (35.2%) and β-phellandrene (19.5%). The in vitro antifungal assay showed that P. patula oil significantly inhibited the growth of 9 plant pathogenic fungi. The oil, when tested on Sinapis arvensis, Lolium rigidum, Phalaris canariensis and Trifolium campestre, completely inhibited seed germination and seedling growth of all species. Our preliminary results showed that P. patula essential oil could be valorized for the control of weeds and fungal plant diseases.

Chemical Composition and in vitro Antimicrobial Activity of the Essential Oils of Two Helichrysum Species from Tanzania

2004 ◽  
Vol 59 (5-6) ◽  
pp. 368-372 ◽  
Author(s):  
Christos Bougatsos ◽  
Olipa Ngassapa ◽  
Deborah K. B. Runyoro ◽  
Ioanna B. Chinou
Keyword(s):  
Antimicrobial Activity ◽  
Chemical Composition ◽  
Essential Oils ◽  
Pathogenic Fungi ◽  
Caryophyllene Oxide ◽  
In Vitro Antimicrobial Activity ◽  
Aerial Parts ◽  
Main Components

The chemical composition of the essential oils obtained from the aerial parts of Helichrysum cymosum and H. fulgidum, from Tanzania, were analyzed by GC and GC/MS. A total of sixty-five compounds, representing 92.4% and 88.2% of the two oils, respectively, were identified. trans-Caryophyllene, caryophyllene oxide, β-pinene, p-cymene, spathulenol and β- bourbonene were found to be the main components. Furthermore, the oils were tested against six gram (±) bacteria and three pathogenic fungi. It was found that the oil of H. fulgidum exhibited significant antimicrobial activity, while the oil of H. cymosum was not active at all.

Chemical Composition And In-Vitro Antimicrobial Activity Of The Essential Oils Of Three Greek Achillea Species

2002 ◽  
Vol 57 (3-4) ◽  
pp. 287-290 ◽  
Author(s):  
Prokopios Magiatis ◽  
Alexios-Leandros Skaltsounis ◽  
Ioanna Chinou ◽  
Serkos A. Haroutounian
Keyword(s):  
Antimicrobial Activity ◽  
Chemical Composition ◽  
Essential Oil ◽  
Essential Oils ◽  
Pathogenic Fungi ◽  
The Other ◽  
Gram Negative ◽  
In Vitro Antimicrobial Activity ◽  
Ms Analysis

The chemical composition of the essential oils of Achillea holosericea, Achillea taygetea, Achillea fraasii was determined by GC/MS analysis. Among the ninety-five assayed constituents, camphor, borneol and 1,8-cineol were found to be the major components. The in-vitro antimicrobial activity of these essential oils was evaluated against six bacteria indicating that the first is totally inactive, while the other two possess moderate to strong activities mainly against the Gram negative strains. The essential oil of A. fraasii was also active against the tested pathogenic fungi

scholarly journals Prevention of polymicrobial biofilms composed ofPseudomonas aeruginosaand pathogenic fungi by essential oils from selected Citrus species

2016 ◽  
Vol 74 (8) ◽  
pp. ftw102 ◽  
Author(s):  
Marina Pekmezovic ◽  
Ivana Aleksic ◽  
Aleksandra Barac ◽  
Valentina Arsic-Arsenijevic ◽  
Branka Vasiljevic ◽  
...  
Keyword(s):  
Essential Oils ◽  
Pathogenic Fungi ◽  
Citrus Species

scholarly journals Antimicrobial activity of biochemical substances against pathogens of cultivated mushrooms in Serbia

2016 ◽  
Vol 31 (1-2) ◽  
pp. 19-27
Author(s):  
Ivana Potocnik ◽  
Biljana Todorovic ◽  
Rada Djurovic-Pejcev ◽  
Milos Stepanovic ◽  
Emil Rekanovic ◽  
...  
Keyword(s):  
Antimicrobial Activity ◽  
Essential Oils ◽  
Disease Control ◽  
21St Century ◽  
Pathogenic Bacteria ◽  
Pathogenic Fungi ◽  
Plant Oils ◽  
Lethal Effects ◽  
Pseudomonas Tolaasii ◽  
Cultivated Mushrooms

Disease control with few or no chemicals is a major challenge for mushroom growers in the 21st century. An alarming incidence of resistance to antibiotics in bacteria, and to fungicides among mycopathogenic fungi requires effective alternatives. Previous studies have indicated that various plant oils and their components demonstrate strong antimicrobial effects against pathogens on cultivated mushrooms. The strongest and broadest activity to pathogens obtained from mushroom facilities in Serbia was shown by the oils of oregano, thyme and basil. Five oils inhibited the growth of pathogenic bacteria Pseudomonas tolaasii: wintergreen, oregano, lemongrass, rosemary and eucalyptus. The essential oils of oregano, geranium and thyme were considerably toxic to the pathogenic fungi Mycogone perniciosa, Lecanicillium fungicola and Cladobotryum spp. The strongest activity against Trichoderma aggressivum f. europaeum was shown by the oils of basil and mint. Oils of juniper and pine showed neither inhibitory nor lethal effects on mushroom pathogens. Although the fungitoxic activity of oils is not strong, they could be used as a supplement to commercial productus for disease control, which will minimize the quantity of fungicides used.

scholarly journals BIOASSAY OF BOTANICAL OILS AGAINST ALTERNARIA SOLANI

2018 ◽  
Vol 10 (4) ◽  
pp. 19
Author(s):  
Tahira Parveen ◽  
Kanika Sharma
Keyword(s):  
Essential Oils ◽  
Control Plant ◽  
Alternaria Solani ◽  
Pathogenic Fungi ◽  
Phytopathogenic Fungi ◽  
Ocimum Sanctum ◽  
Good Potential ◽  
Ocimum Tenuiflorum ◽  
Whatman Paper

Objective: In vitro antifungal activity of six essential oils of 1. Ocimum tenuiflorum (Purple leaves/Krishna Tulsi) 2. Cymbopogon citrates (Nimbu ghas), 3. Origanum majorina (Sweet majoram), 4. Ocimum citriodorum (Nimbu tulsi), 5. Ocimum bascillicum (Gulal tulsi), and 6. Ocimum sanctum (Green leaves/Shree tulsi) were investigated against economically important phytopathogenic fungi, Alternaria solani, isolated from infected chilly. Methods: The experiment was carried out by Whatman paper disc method using Whatman paper No.3 on Potato Dextrose Agar with three replicates. Five concentrations of each essential oils i.e., 20, 40, 60, 80 and 100% were assayed against the test fungus. The experiment was carried out at 27ᵒC and mycelial growth was measured after every third day, upto 15 d using statistical method.Results: It is an evident from this study that all the oils used in this study are inhibiting test fungi, oil of O. bascillicum and O. sanctum are completely (100%) inhibiting test fungi.Conclusion: It may be concluded from the above study that all the taken oils have a good potential to control plant pathogenic fungi and these could be considered for developing a new fungicide.

scholarly journals Essential Oils as Potential Alternative Biocontrol Products against Plant Pathogens and Weeds: A Review

Foods ◽  
2020 ◽  
Vol 9 (3) ◽  
pp. 365 ◽  
Author(s):  
Robin Raveau ◽  
Joël Fontaine ◽  
Anissa Lounès-Hadj Sahraoui
Keyword(s):  
Essential Oils ◽  
Plant Pathogens ◽  
Crop Yields ◽  
Biological Activities ◽  
Pathogenic Fungi ◽  
Phytopathogenic Fungi ◽  
Plant Diseases ◽  
Present Review ◽  
Traditional Medicines ◽  
Wide Range

Naturally produced by aromatic plants, essential oils (EO) contain a wide range of volatile molecules, including mostly secondary metabolites, which possess several biological activities. Essential oils properties such as antioxidant, antimicrobial and anti-inflammatory activities are known for a long time and hence widely used in traditional medicines, cosmetics and food industries. However, despite their effects against many phytopathogenic fungi, oomycetes and bacteria as well as weeds, their use in agriculture remains surprisingly scarce. The purpose of the present review is to gather and discuss up-to-date biological activities of EO against weeds, plant pathogenic fungi, oomycetes and bacteria, reported in the scientific literature. Innovative methods, potentially valuable to improve the efficiency and reliability of EO, have been investigated. In particular, their use towards a more sustainable agriculture has been discussed, aiming at encouraging the use of alternative products to substitute synthetic pesticides to control weeds and plant diseases, without significantly affecting crop yields. An overview of the market and the recent advances on the regulation of these products as well as future challenges to promote their development and wider use in disease management programs is described. Because of several recent reviews on EO insecticidal properties, this topic is not covered in the present review.

Antifungal Activity of Plant Derived Essential Oils on Pathogens of Pulse Crops

Plant Disease ◽  
2020 ◽  
Author(s):  
Lipi P Parikh ◽  
Bright Agindotan ◽  
Mary Eileen Burrows
Keyword(s):  
Essential Oils ◽  
Mycelial Growth ◽  
Production Systems ◽  
Pathogenic Fungi ◽  
Aphanomyces Euteiches ◽  
Pulse Crops ◽  
Yield And Quality ◽  
Conventional Production ◽  
Petri Plate ◽  
Animal Consumption

Pulse crops such as chickpeas, lentils, and dry peas are grown widely for human and animal consumption. Major yield and quality limiting constraints include diseases caused by fungi and oomycetes. The environmental and health concerns of synthetic fungicides use for disease management, emergence of fungicide-resistant pathogens, and demand for organic pulse crop products necessitate the search for effective alternatives. Safe and environmentally friendly plant-derived essential oils (EOs) have been reported effective against some pathogenic fungi. Growth on EO amended growth medium and an inverted Petri-plate assay were used to determine the effects of 38 oils and their volatiles on mycelial growth and spore germination of important pathogenic fungi and oomycetes: Aphanomyces euteiches, Botrytis cinerea, Colletotrichum lentis, Didymella pisi, D. rabiei, D. lentis, Fusarium avenaceum, Stemphylium beticola, Sclerotinia sclerotiorum, and Pythium sylvaticum. Palmarosa, oregano, clove, cinnamon, lemongrass, citronella, and thyme oils incorporated in media inhibited mycelial growth of all the pathogens by 100% at 1:1,000 to 1:4,000 dilution. In addition, thyme oil (1:500 dilution) showed complete inhibition of conidial germination (0% germination) of F. avenaceum, and D. pisi. All the seven EO volatiles inhibited mycelial growth of all pathogens by 50 to 100% except for B. cinerea and S. sclerotiorum. Essential oil effects on mycelial growth were fungistatic, fungicidal or both and varied by E. Essential oils show potential for management of major crop diseases in organic and conventional production systems.

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