In Vitro Suppression of Mycelial Growth of Fusarium oxysporum by Extracellular Chitosanase of Sphingobacterium multivorum and Cloning of the Chitosanase Gene csnSM1

2001 ◽  
Vol 67 (4) ◽  
pp. 318-324 ◽  
Author(s):  
Yoshinori MATSUDA ◽  
Yuichiro IIDA ◽  
Takeshi SHINOGI ◽  
Koji KAKUTANI ◽  
Teruo NONOMURA ◽  
...  
Keyword(s):  
Fusarium Oxysporum ◽  
Mycelial Growth

scholarly journals In vitro antifungal potential of plant extracts against Fusarium oxysporum, Rhizoctonia solani and Macrophomina phaseolina.

2017 ◽  
Vol 6 (9) ◽  
pp. 1676 ◽  
Author(s):  
Ramaraju Cherkupally ◽  
Srinivasa Reddy Kota ◽  
Hindumathi Amballa ◽  
Bhumi Narasimha Reddy
Keyword(s):  
Rhizoctonia Solani ◽  
Fusarium Oxysporum ◽  
Plant Extracts ◽  
Mycelial Growth ◽  
Aloe Vera ◽  
Datura Stramonium ◽  
Macrophomina Phaseolina ◽  
Calotropis Procera ◽  
Fungitoxic Effect

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.

scholarly journals Indole-Containing Phytoalexin-Based Bioisosteres as Antifungals: In Vitro and In Silico Evaluation against Fusarium oxysporum

Molecules ◽  
2019 ◽  
Vol 25 (1) ◽  
pp. 45
Author(s):  
Andrea Angarita-Rodríguez ◽  
Diego Quiroga ◽  
Ericsson Coy-Barrera
Keyword(s):  
Fusarium Oxysporum ◽  
Mycelial Growth ◽  
Plant Pathogens ◽  
Antifungal Agents ◽  
Molecular Mechanic ◽  
Energy Performance ◽  
Fusarium Spp ◽  
Molecular Interaction Fields ◽  
Poisson Boltzmann

There is a continuous search for more reliable and effective alternatives to control phytopathogens through different strategies. In this context, indole-containing phytoalexins are stimuli-induced compounds implicated in plant defense against plant pathogens. However, phytoalexins’ efficacy have been limited by fungal detoxifying mechanisms, thus, the research on bioisosteres-based analogs can be a friendly alternative regarding the control of Fusarium phytopathogens, but there are currently few studies on it. Thus, as part of our research on antifungal agents, a set of 21 synthetic indole-containing phytoalexin analogs were evaluated as inhibitors against the phyopathogen Fusarium oxysporum. Results indicated that analogs of the N,N-dialkylthiourea, N,S-dialkyldithiocarbamate and substituted-1,3-thiazolidin-5-one groups exhibited the best docking scores and interaction profiles within the active site of Fusarium spp. enzymes. Vina scores exhibited correlation with experimental mycelial growth inhibition using supervised statistics, and this antifungal dataset correlated with molecular interaction fields after CoMFA. Compound 24 (tert-butyl (((3-oxo-1,3-diphenylpropyl)thio)carbonothioyl)-l-tryptophanate), a very active analog against F. oxysporum, exhibited the best interaction with lanosterol 14α-demethylase according to molecular docking, molecular dynamics and molecular mechanic/poisson-boltzmann surface area (MM/PBSA) binding energy performance. After data analyses, information on mycelial growth inhibitors, structural requirements and putative enzyme targets may be used in further antifungal development based on phytoalexin analogs for controlling phytopathogens.

scholarly journals POTENTIAL OF PLANT EXTRACTS AND FUNGICIDES FOR MANAGING FUSARIUM OXYSPORUM F. SPLYCOPERSICI

2018 ◽  
Vol 30 (1) ◽  
pp. 75 ◽  
Author(s):  
Gul B. Poussio ◽  
Manzoor A. Abro ◽  
Jamal U. D. Hajano ◽  
Muhammad I. Khaskheli ◽  
Khalid I. Rajput ◽  
...  
Keyword(s):  
Fusarium Oxysporum ◽  
Mycelial Growth ◽  
Disease Incidence ◽  
Block Design ◽  
Fungal Growth ◽  
Tomato Crop ◽  
Randomized Block Design ◽  
Sindh Province ◽  
Causal Fungus

Fusarium oxysporum f.sp. lycopersici (FOL) is a highly destructive fungal pathogen of tomato crop causing wilt disease which may reduce 10 to 90% yield. In Pakistan, tomato is widely grown in Sindh province, major territories are district Hyderabad, Tando Allahyar and Mirpurkhas. Thus, surveys of these territories were conducted to record intensity of the disease and confirm etiology. Furthermore, potential of different botanical pesticides and commercially available fungicides were tested to inhibit mycelial growth of the causal fungus. The experiment was laid down with complete randomized block design with three replications. The results showed that the disease was occurring in all locations with the range of 8-47 % incidence. F. oxysporum f.sp. lycopersici was predominantly isolated from the collected disease sample during survey and pathogenic nature of the fungus was tested on the tomato Golo variety through soil drenching method. The disease incidence of 30 and 42 % (72 % as total) was recorded in inoculated tomato plants at 20 and 40 DAI, respectively. Maximum (67 %) inhibition of the fungal growth was found by neem seed extracts at higher dose of 8 % concentration followed by 63 % with neem seeds and Eucalyptus at 6 and 8 %, respectively. Alternatively, the Nativo 75 WG fungicide was found most effective in reducing the redial mycelial growth of target fungus followed by Topsin-M at 1000 ppm where as Aliette and Melodedue fungicides were found least effective under in-vitro conditions.

scholarly journals Ascophyllum nodosum seaweed extract effect on morphology and cellulolytic ability of the fungus Fusarium oxysporum f. sp. vasinfectum

2020 ◽  
Vol 9 (11) ◽  
pp. e4079119913
Author(s):  
Thiago Anchieta de Melo ◽  
Ilka Márcia Ribeiro de Souza Serra ◽  
Ingrid Tayane Vieira da Silva do Nascimento
Keyword(s):  
Fusarium Oxysporum ◽  
Mycelial Growth ◽  
Culture Medium ◽  
Ascophyllum Nodosum ◽  
Progressive Increase ◽  
Fresh Mass ◽  
Seaweed Extract ◽  
Elongation Process ◽  
Different Doses

This work aimed to verify the effect in vitro, of Ascophyllum nodosum (AN) seaweed extract on the morphology and cellulolytic capacity of the fungus Fusarium oxysporum f. sp. vasinfectum (FOV). Thus, the fungus was placed in contact with different doses of the extract, being these: 0, 0.5, 1.0, 2.0, 4.0 and 8.0%. It was verified that the product, with increasing doses, progressively induced mycelial growth of the fungus, as measured by the diameter of the colonies and fresh mass of mycelium grown in PD (potato-dextrose) culture medium. This result was also corroborated by the progressive increase in the activity of the β-1,3-glucanase and chitinase enzymes required during the hypha elongation process. However, the AN extract progressively reduced FOV sporulation with increasing doses. Furthermore, the cellulolytic capacity of the phytopathogen was significantly reduced in the presence of the algae extract, which was measured by the activity of the enzymes endo-β-1,4-glucanase, exo-β-1,4-glucanase and β-glucosidase. Thus, these facts constitute important information for the management of fusariosis, since the inhibition of sporulation and decreasing degradation capacity of the cellulose by the pathogen, can translate into declined disease in compatible host-pathogen interactions.

scholarly journals Eco Friendly Management of Fusarium Wilt of Chickpea with Botanicals and Bio Agents in In-vitro

2020 ◽  
pp. 192-196
Author(s):  
K. L. Nandeesha ◽  
Shalini N. Huilgol ◽  
Geeta D. Goudar
Keyword(s):  
Fusarium Oxysporum ◽  
Mycelial Growth ◽  
Total Yield ◽  
Infected Plant ◽  
Cassia Tora ◽  
Cicer Arietinum L ◽  
Cent Concentration ◽  
Chickpea Wilt ◽  
Environment Condition

Chickpea (Cicer arietinum L.) is one of the most important pulse crop grown all over India. Chickpea wilt caused by Fusarium oxysporum f. sp. ciceri is one of the major disease on chickpea in Northern Karnataka, which is soil and seed borne. Heavy inoculum in the soil and favorable environment condition results in the death of infected plant and therefore total yield loss.In this study, three antagonists, and seven botanicals were studied against Fusarium oxysporum f. sp. ciceri causing chickpea wilt. In vitro studies found that among the botanicals, turmeric rhizome extract gave maximum per cent inhibition of mycelial growth (26.73%) and least per cent inhibition of mycelial growth (9.96%) was observed in cassia tora at 15 per cent concentration. Among the antagonists, Trichoderma harzianum was effective in per cent inhibition of Fusarium oxysporum f. sp. ciceri with (76.47%) and Pseudomonas fluorescens found least effective in per cent mycelial inhibition with (34.41%).

scholarly journals Evaluation of antifungal activity of sodium salts against onion basal rot caused by Fusarium oxysporum f.sp. cepae

2014 ◽  
Vol 50 (No. 1) ◽  
pp. 19-25 ◽  
Author(s):  
M. Türkkan ◽  
I. Erper
Keyword(s):  
Fusarium Oxysporum ◽  
Sodium Fluoride ◽  
Mycelial Growth ◽  
Sodium Phosphate ◽  
Sodium Metabisulfite ◽  
Sodium Salts ◽  
Minimum Fungicidal Concentration ◽  
Basal Rot ◽  
Onion Basal Rot

The efficacy of twelve sodium salts as possible alternatives to synthetic fungicides for the control of onion basal rot caused by&nbsp;Fusarium oxysporum&nbsp;f.sp.&nbsp;cepae&nbsp;was evaluated.&nbsp;In vitro&nbsp;tests showed that there were significant differences between the inhibitory effects of sodium salts on the mycelial growth (P&nbsp;&le; 0.05) and 2% (w/v) concentrations of sodium metabisulfite and sodium fluoride completely inhibited mycelial growth of the fungus, while other salts did not. Sodium metabisulfite and sodium phosphate monobasic had lower pH values than the other salts. Unlike sodium metabisulfite, sodium phosphate monobasic could not decrease the mycelial growth. The ED<sub>50</sub>, minimum inhibition concentration (MIC), and minimum fungicidal concentration (MFC) values indicated that sodium metabisulfite was more inhibitory to the fungus compared to sodium fluoride. In soil tests, inhibitory effect of sodium metabisulfite on the fungus was higher than that of sodium fluoride, where sodium metabisulfite completely inhibited mycelial growth at even 0.4% concentration.

scholarly journals SCREENING OF PEAS (PISUM SATIVUM) VARIETIES/ LINES AGAINST FUSARIUM WILT (FUSARIUM OXYSPORUM .SP.PICI) AND IN VITRO EVALUATION OF FUNGICIDES AGAINST MYCELIAL GROWTH OF PATHOGEN

2019 ◽  
Vol 31 (1) ◽  
pp. 89-96
Author(s):  
Syed K. Husnain ◽  
Sabir H. Hussain ◽  
Muhammad Atiq ◽  
Nasir A. Rajput ◽  
Waseem Abbas ◽  
...  
Keyword(s):  
Pisum Sativum ◽  
Fusarium Oxysporum ◽  
Fusarium Wilt ◽  
Mycelial Growth ◽  
Plant Disease ◽  
Plant Mortality ◽  
Food Legumes ◽  
Pisum Sativum L ◽  
Chickpea Wilt

Twenty Peas (Pisum sativum L.) varieties/ lines were evaluated against Fusarium wilt caused by Fusarium oxysporum .Sp.pici by sowing them in sick plot during the year of 2016-17 at the Plant Pathology Research Institute, Faisalabad. Each cultivar/line was planted in a single row of three meter length, with plant to plant and row to row distances of 15cm and 30 cm respectively and replicated thrice by following Randomized Complete Block Design (RCBD). Out of these twenty varieties/ lines 13 including check variety Olympia were found highly susceptible ranging from 53.2 to 83.5% plant mortality. Six varieties/lines were susceptible ranging from 30.3 to 44.1 % plant mortality. Only a single variety Garrow performed as moderately resistant by showing 21% plant mortality in the field. Efficacy of five fungicides against Fusarium oxysporum .Sp.pici, at various concentrations was evaluated in-vitro and significant variations among treatments was observed. In general there was a significant decrease in mycelial growth of the fungus with an increase in concentration of fungicides. Tilt (Propiconazol),( Daconil (Chlorothalonil) and Crest (Carbendazim) were the most effective fungicides in inhibiting the growth of the fungus in descending order. The Tilt almost 90% inhibited the growth @ 50µg/ml concentration, Daconil and Crest exhibited intermediate effectiveness. Topsin-M (Thiophanate-methyl) and Score (Difenoconazole) were the least effective fungicides.Ahmad, M. A., S. M. Iqbal, N. Ayub, Y. Ahmad and A. Akram. 2010. Identification of resistant sources in chickpea against Fusarium wilt. Pak. J. Bot, 42: 417-426.Borum, D. E. and J. Sinclair. 1968. Evidence for systemic protection against Rhizoctonia solani with vitavax in cotton seedlings. Phytopathology, 58: 976-&.Davies, D., G. Berry, M. Heath and T. Dawkins. 1985. Pea (Pisum sativum L.). Grain Legume Crops. Collins, London, UK: 147-198.Food and Agriculture Organization of the United Nations. 2011Hagedorn, D. 1984. Compendium of pea diseases. 57 p. Am. Phytopathol. Soc., St. Paul, Minnesota, USA.Hannan, A., S. T. Sahi, I. Ahmed and A. A. Choudhry. 2014. Differential impact of Fusarium oxysporum f. sp. pisi on resistance source of pea genotypes and its chemical management. Pakistan Journal of Phytopathology, 26: 91-96.Haware, M. P. 1978. Eradication of Fusarium oxysporum f. sp. ciceri Transmitted in Chickpea Seed. Phytopathology, 68: 1364.Haware, M.P. and Nene, Y.L., 1982. Races of Fusarium oxysporum f.sp. ciceri. Plant disease, 66 (9), pp.809-810.Hulse, J. H. 1994. Nature, composition, and utilization of food legumes. Expanding the Production and Use of Cool Season Food Legumes. Springer Netherlands, pp. 77-97.Ilyas, M., M. Iqbal and K. Iftikhar. 1992. Evaluation of some fungicides against Fusarium oxysporum f. sp. ciceris and chickpea wilt. Pakistan Journal of  Phaytopahtology, 4: 5-8.Iqbal, S. M. 2005. Screening of chickpea genotypes for resistance against Fusarium wilt. Mycopath (Pakistan).Javaid, I. A., A. Ghafoorm and R. Anwar. 2002. Evaluation of local and exotic pea Pisum sativum germplasm for vegetable and dry grain straits. Pak. J. Bot, 34: 419-427.Khan, I., S. Alam and A. Jabbar. 2002. Selection for resistance to Fusarium wilt and its relationship with phenols in chickpea.Khan, S. A., A. Awais, N. Javed, K. Javaid, A. Moosa, I. U. Haq, N. A. Khan, M. U. Chattha and A. Safdar. 2016. Screening of pea germplasm against Fusarium oxysporum f. sp. pisi and invitro management through chemicals. Pakistan Journal of Phytopathology, 28: 127-131.Khokhar, M. 2014. Production status of major vegetables in Pakistan, their problems and suggestions. Agric. Corner, 9.Kraft, J. M. 1994. Fusarium wilt of peas (a review). Agronomie, 14: 561-567.Maitlo, S., R. Syed, M. Rustamani, R. Khuhro and A. Lodhi. 2014. Comparative efficacy of different fungicides against fusarium wilt of chickpea (Cicer arietinum L.). Pakistan Journal of Botany, 46: 2305-2312.McPhee, K. 2003. Dry pea production and breeding. Food, Agri Environ, 1: 64-69.Nawab, N. N., G. M. Subhani, K. Mahmood, Q. Shakil and A. Saeed. 2008. Genetic variability, correlation and path analysis studies in garden pea (Pisum sativum L.). J. Agric. Res, 46: 333-340.Nene, Y., M. Haware and M. Reddy. 1981. Chickpea diseases: resistance-screening techniques.Pande, S., J. N. Rao and M. Sharma. 2007. Establishment of the Chickpea Wilt Pathogen Fusarium oxysporum f. sp. ciceris in the Soil through Seed Transmission. The Plant Pathology Journal, 23: 3-6.Persson, L., L. Bødker and M. Larsson-Wikström. 1997. Prevalence and pathogenicity of foot and root rot pathogens of pea in Southern Scandinavia. Plant Disease, 81: 171-174.Steel, R. G. D. and J. H. Torrie. 1980. Principles and procedures of statistics, a biometrical approach. McGraw-Hill Kogakusha, Ltd.Sundar, A. R., N. Das and D. Krishnaveni. 1995. In-vitro antagonism of Trichoderma spp. against two fungal pathogens of Castor. Indian Journal of Plant Protection, 23: 152-155.Vyas, S. C. 1984. Systemic fungicides. Systemic fungicides.  

scholarly journals Influence of MCPA on Fusarium oxysporum root rot and red clover growth under controlled greenhouse conditions

2006 ◽  
Vol 87 (1) ◽  
pp. 9-15
Author(s):  
Ricardo Ceballos ◽  
Graciela Palma ◽  
Fernando Perich ◽  
Fernando Pardo ◽  
Andrés Quiroz
Keyword(s):  
Fusarium Oxysporum ◽  
Root Rot ◽  
Mycelial Growth ◽  
Red Clover ◽  
Dry Weight ◽  
Conidial Germination ◽  
High Rate ◽  
Crown Diameter ◽  
Shoot Dry Weight

Abstract Root rot caused by Fusarium oxysporum is a disease that reduces red clover persistence. Agronomical management of red clover includes MCPA application, and there is no information regarding the effects of this herbicide on the disease. MCPA was evaluated for its effects on F. oxysporum root rot and red clover (Trifolium pratense) growth in a greenhouse experiment. Additionally, in vitro mycelial growth and conidial germination of F. oxysporum were studied. For shoot dry weight and crown diameter of seedlings, the interaction of herbicide and inoculum was significant at 30 d. The herbicide–inoculum treatment reduced shoot dry weight by 20% at 1X rate and by 24% at 2X rate, and crown diameter was reduced by 10% at the high rate. The MCPA treatment caused a 40% reduction of root dry weight by the end of the experiment. Application of MCPA caused fusarium root rot to increase in severity on red clover seedlings and caused phytotoxicity at the high rate. Interaction with the other growth parameters was not significant, indicating that the effects of herbicide and inoculum were independent. Conidial germination and mycelial growth in vitro were reduced by MCPA. Results suggest that red clover growth could be negatively affected by F. oxysporum after MCPA application and that root rot severity increases at high rates of MCPA.

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