scholarly journals Antifungal activity of some botanical extracts on Fusarium oxysporum

2015 ◽  
Vol 10 (1) ◽  
Author(s):  
Domenico Rongai ◽  
Patrizio Pulcini ◽  
Barbara Pesce ◽  
Filomena Milano

AbstractThe present paper describes the antifungal activity of some plant extracts on the development of Fusarium oxysporum f.sp. lycopersici. The best extracts were selected to be tested as a phytofungicide to control crop diseases, with the ultimate goal of developing a green alternative to synthetic fungicides. Using the conidia germination assay, of the 24 plant extracts tested, 15 reduced conidia germination and 6 completely inhibited germination. Extracts of Rivina humulis, Brassica carinata, Brunfelsia calyicina, Salvia guaranitica and Punica granatum showed good antifungal activity. The relationship between total phenolic content (TPC) in each plant extract tested and the percentage of mycelial growth inhibition showed a significant correlation (R2 = 0.69), while no correlation was found between total flavonoid content (TFC) and percentage mycelial growth inhibition. Among all extracts tested, Punica granatum and Salvia guaranitica showed the best inhibitory effect against Fusarium oxysporum f.sp. lycopersici . Our results indicate that plant extracts with a good antifungal activity generally had a high level of total polyphenolic content and titratable acidity, and low values of pH.

2020 ◽  
Vol 12 (22) ◽  
pp. 9334
Author(s):  
May Khaing Hpoo ◽  
Maryia Mishyna ◽  
Valery Prokhorov ◽  
Tsutomu Arie ◽  
Akihito Takano ◽  
...  

The antifungal activity of volatile compounds from the fruit, leaf, rhizome and root of 109 plant species was evaluated against Fusarium oxysporum f. sp. lycopersici (FOL) race 1—the tomato wilt pathogen—by using the modified dish pack method. Eighty-eight plant samples inhibited mycelial growth, including volatiles from fruits of Heracleum sosnowskyi, which exhibited the strongest antifungal activity, showing 67% inhibition. Two volatile compounds from the fruits of H. sosnowskyi (octanol and octanal) and trans-2-hexenal as a control were tested for their antifungal activities against FOL race 1 and race 2. In terms of half-maximal effective concentration (EC50) values, octanol was found to be the most inhibitory compound for both pathogenic races, with the smallest EC50 values of 8.1 and 9.3 ng/mL for race 1 and race 2, respectively. In the biofumigation experiment, the lowest disease severity of tomato plants and smallest conidial population of race 1 and race 2 were found in trans-2-hexenal and octanol treated soil, while octanal had an inhibitory effect only on race 2. Therefore, our study demonstrated the effectiveness of volatile octanol and trans-2-hexenal on the control of the mycelial growth of two races of Fusarium oxysporum f. sp. lycopersici and may have potential for the future development of novel biofumigants.


2020 ◽  
Vol 10 (2-s) ◽  
pp. 1-6
Author(s):  
Jahangir Abdullah Koka ◽  
Mohd Yaqub Bhat ◽  
Abdul Hamid Wani

Antimycotic activities of different solvent extracts of Punica granatum L. and Spiraea prunifolia Siebold and Zucc. were carried out through agar well diffusion assay at three concentrations (25µl, 50µl and 75µl) against seven fungi causing rot diseases of tomato and brinjal. All the concentration of plant extracts showed antifungal activity against tested pathogenic fungi. Antimycotic activity increased with the increased concentrations of plant extracts. However, higher concentrations proved more effective than lower concentrations. It was revealed from the present study that the ethanolic extract of Punica granatum L. showed maximum antifungal activity against Rhizoctonia solani and Penicillium expansum and least inhibitory activity against Aspergillus niger. However, the aqueous extract of Punica granatum L. showed maximum antimycotic activity against Rhizoctonia solani and Alternaria alternata and least inhibitory effect against Penicillium expansum. It was further observed from the present study that the ethanolic extract of Spiraea prunifolia Siebold and Zucc. showed maximum antimycotic activity against Rhizoctonia solani and least inhibitory effect against Alternaria alternata. Whereas the aqueous extract of Spiraea prunifolia Siebold and Zucc showed maximum antifungal activity against Aspergillus niger and least inhibitory activity against Alternaria alternata. Keywords: Plant extracts, Concentration, Antimycotic effectiveness, tomato and brinjal, fungal rot pathogens, Inhibition zone.


Author(s):  
Gordana Dimic ◽  
Suncica Kocic-Tanackov ◽  
Dragana Karalic

The antifungal activity of spice extracts obtained from caraway seed, garlic and origanum was tested against antifungal activity of Eurotium herbariorum E. amstelodami, Aspergillus flavus and A. sydowii. Caraway seed extract has been proved to possess the highest inhibitory effect on all investigated mould species. The concentrations of caraway extract, sufficient to inhibit the growth completely were: 0,5% for E. herbariorum, E. amstelodami and A. sydowii, and 1% for A. flavus; of garlic, 1% for Eurotium spp. and 2% for A. sydowii, and of origanum, 1% for E. herbariorum and 2% for E. amstelodami. The results of colonies diameter measuring showed that garlic and origanum extracts have no significant suppressing ability on micellar growth of A. flavus, while garlic was more efficient in other test cultures.


2017 ◽  
Vol 6 (9) ◽  
pp. 1676 ◽  
Author(s):  
Ramaraju Cherkupally ◽  
Srinivasa Reddy Kota ◽  
Hindumathi Amballa ◽  
Bhumi Narasimha Reddy

The antifungal activity of aqueous extracts of nine plants viz, Azadirachta indica, Parthenium hysterophorus, Momordica charantia, Allium sativum, Eucalyptus globules, Calotropis procera, Aloe vera, Beta vulgaris and Datura stramonium were assessed in vitro against Fusarium oxysporum f. sp. melongenae, Rhizoctonia solani and Macrophomina phaseolina, the soil borne phytopathogens. The assessment of fungitoxic effect was carried out by using three different concentrations i.e., 5, 10 and 20% against the test fungi, in terms of percentage of mycelial growth inhibition. The extract of A. sativum completely inhibited the mycelial growth of M. phaseolina at all the concentrations. The extracts of D. stramonium and E. globulus inhibited the mycelial growth of R. solani of 72%, and 70.7% respectively at 20% concentration, that of A. sativum, E. globulus and D. stramonium exhibited inhibition percentage of 63.3%, 61.8% and 61.1% respectively at 20% concentration on Fusarium oxysporum f. sp. melongenae. The application of plant extracts for disease management could be less expensive, easily available, non-polluting and eco-friendly.


2020 ◽  
Vol 56 (No. 3) ◽  
pp. 191-196
Author(s):  
Kahkashan Perveen ◽  
Najat A. Bokhari

The essential oil obtained by the hydro-distillation of the leaves of Mentha arvensis Linnaeus was evaluated for its antifungal activity against the causal agent of the Alternaria blight of tomatoes, i.e., Alternaria alternata (Fries) Keissler. The antifungal activity of the mentha essential oil was assessed both in vitro and in vivo. The chemical composition of the mentha oil was also identified by GCMS analysis. The in vitro test revealed that the maximum inhibition in the mycelial growth (93.6%) and conidia germination (90.6%) was at the highest concentration (40 µL/mL), furthermore, it was found that the inhibition of the mycelial growth and conidia germination was dose dependent. The in vivo test proved that the application of the mentha essential oil (40 µL/mL) significantly increased the plant height (84.6%), fresh weight (81.5%) and dry weight (80.0%) when compared to the untreated tomato plants. The disease incidence was 3.5 in the untreated plants, while it was 0.93 for the mentha essential oil treated plants and was 0.08 in the carbendazim treated plants. The GC-MS analysis of the mentha essential oil identified 18 compounds in total, among which the percentage of menthol was the highest (69.2%). The mentha essential oil was successful in managing the Alternaria leaf blight in the tomato plants. Therefore, it can be explored further for the development of a natural fungicide.


2016 ◽  
Vol 12 (1) ◽  
pp. 66-73
Author(s):  
Daniel Plazas-Jiménez ◽  
Victor Enrique Macias-Villamizar ◽  
Ericsson Coy-Barrera

“Yellow moena” (Nectandra longifolia: Lauraceae) is a fragrant leaves-possessing plant commonly used for timber purposes. Nevertheless, so far, there is not available information about its chemical composition. Thus, in the present work is described the components of the essential oil from N. longifolia leaves. The oil was extracted by steam distillation and analyzed by GC/FID  and GC/MS. Twenty eight compounds were therefore identified. The main components were found to be terpinen-4-ol (53.1%), α-terpinene (6.8%), α-phellandrene (4.5%), and β-pinene (3.8%). The chemical composition of essential oil from N. longifolia leaves was consequently in agreement to that of several neotropical Lauraceae plants. In addition, the oil exhibited good antifungal activity against F. oxysporum through dose-dependent mycelial growth inhibition (using amended media and fumigant assays).


2021 ◽  
Vol 17 (2) ◽  
pp. 146-148
Author(s):  
Ashish Shrivastava

Studies were conducted to test the effect of oil cakes and organic manures on the growth of wilt pathogen under in vitro conditions. The extract of different oil cakes and organic manures were tested against F. oxysporum f. sp. ciceri by poisoned food techniques in vitro. Least growth of pathogen was recorded in extracts of Neem cake showing excellent inhibitory effect of 70.87 percent reduction over control. Next best in order of mustard cake (65.36 %), linseed (62.99%), groundnut (53.36%) and least by other. Among the organic manures tested, vermi compost and FYM showed maximum growth inhibition of 35.95 and 30.62 percent over control, respectively.


2016 ◽  
Vol 8 (1) ◽  
pp. 60-62 ◽  
Author(s):  
Ameer Junaithal Begum M. ◽  
P. Selvaraju ◽  
A. Vijayakumar

The purpose of the study was to determine the anti fungal activity of seaweed (Turbinaria conoides) extract against root rot pathogen Fusarium oxysporum. Seaweed extract was prepared from the species T. conoides collected from Rameswaram coastal area of Tamil Nadu during December was used for this study. Different concentrations of the extract viz., 5 %, 10 %, 15 % and 20 % was evaluated for their antifungal activity against F. oxysporum using poisoned food technique along with control and carbendazim (0.2 %) as check. No mycelial growth (0 cm) was observed in 15 % and 20 % sea weed extract weed extract treated plates even after 6 days ofincubation. Though the visible inhibition of mycelial growth was noticed in all the concentrations, the increased concentration of 15 and 20 % had shown 100 % inhibition. So, the lower concentration of 15 % can be best in controlling the F. oxysporum fungi. GC-MS analysis of seaweed extract showing the presence of several antimicrobial compounds in seaweeds may be the reason for such inhibition.


Author(s):  
B. Mohana ◽  
Shiva Kameshwari ◽  
M. K. Prasana Kumar

Aqueous extract of Urginea indica kunth. (Udupi acccession) was screened for antifungal activity against Fusarium oxysporum, Sclerotium rolfsii, Magnaporthe orzae, Aspergillus flavus, Alternaria alternata, Aspergillus niger and Fusarium moniliformae by poisoned food technique. The results confirmed Urginea indica extracts showed very significant antifungal activity against Fusarium oxysporum and showed significant inhibition for Sclerotium rolfsii and Magnapothea orzaea it showed no activity against Aspergillus niger and Aspergillus flavus. All the activity was evaluated to determine the lowest concentration required to inhibit visible mycelial growth of the pathogen at minmum concentration. Fusarium oxysporum showed very significant inhibition in 10% concentration (Reconfirmed) while Sclerotium showed significant inhibition in 25% concentration followed by Magnoporthe oryzae. The number of sclerotia spores formed was also reduced drastically. These results show that a potential and safe antifungal agent can be obtained from Urginea.


Author(s):  
Shweta Singh ◽  
Jaiganesh Rengarajan ◽  
Iyappan Sellamuthu

The adverse effect of pesticides used for controlling pests and the diseases caused by them is extensively rising. To overcome this harmful environmental impact, alternative methods are being studied and developed. Out of many possible methods, one effective method is to use plant extracts which embodies natural substances having antifungal properties. In an attempt towards enhancement of sustainable antifungal approach, four different concentrations of four plant extracts Citrus limon, Azadirachta indica, Ocimum gratissimum and Acalypha indica, were tested for their antifungal activity against Rhizoctonia solani, which is a serious threat for plants, and is responsible for considerable crop and yield losses. The aim of this study is to minimize yield losses and to regain the attention of formers towards exploiting natural resources for diseases control. From the results, it can be concluded that different concentrations of plant extracts have caused substantial inhibition in the mycelial growth of R. solani. The leaf extract of Ocimum gratissimum was highly effective in inhibiting mycelial growth, at the concentration of 500mg/ml of extract followed by Citrus limon, Azadirachta indica, and Acalypha indica. These plants might have potential for the development of natural fungicide for the management of diseases caused by fungal pathogens. Also, fungicides developed from these botanical extracts can prove to be highly effective for the management of plant diseases and would be simply obtainable, nonpolluting, biodegradable and economical.


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