Parasitism of Rhizoctonia solani by strains of Trichoderma spp.

Melo, I. S. de; Faull, J. L.

doi:10.1590/s0103-90162000000100010

Cited by 36 publications

(15 citation statements)

References 18 publications

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“…These results was in confirmation with the finding of Melo and Faull [30], who reported that the T. koningi and T. harzianum were found to be effective in reducing the radial growth of R. solani, T. koningi strains produced toxic metabolites with strong activity against R. solani, inhibiting the mycelial growth. Ramezani [31] …”

Section: Discussionsupporting

confidence: 91%

Antagonism of Trichoderma spp. against Macrophomina phaseolina: Evaluation of Coiling and Cell Wall Degrading Enzymatic Activities

HP¹

2012

J Plant Pathol Microb

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Materials and Methods Sources of Trichoderma sppSlants of six species of Trichoderma (T. harzianum NBAII Th 1; T. viride NBAII Tv 23; T. virens NBAII Tvs 12; T. koningi MTCC 796; T. pseudokoningi MTCC 2048; T. hamatum NBAII Tha-1.) were obtained either from IARI, New delhi or from MTCC, Chandigarh. One local isolate of T. harzianum was also collected from culture collection of Department of Plant Pathology, Junagadh Agricultural University, Junagadh. Isolation of phytopathogenic fungiMacrophomina phaseolina (Tassi) Goid was used as pathogen. The castor plants showing typical symptoms of root rot were collected AbstractIn vitro potentialities of seven species of Trichoderma were evaluated against phytopathogen Macrophomina phaseolina by dual culture techniques. The maximum growth inhibition of test pathogen was observed by antagonist T. koningi MTCC 796 (T4) (74.3%) followed by T. harzianum NABII Th 1 (T1) (61.4%) at 7 days after inoculation (DAI). Further, mycoparasitism of antagonists were observed upto 14 DAI. Pattern of growth inhibition of test fungus was continued with maximum 14.7% increases in T4 (85.2%) followed by 6.8% elevation in T1 (65.6%) antagonists during 7 to 14 DAI. Microscopic study showed that these two antagonists were capable of overgrowing and degrading M. phaseolina mycelia, coiling around the hyphae with apressoria and hook-like structures. At 14 DAI, T. koningi MTCC 796 completely destroyed the host and sporulated. The specific activities of cell wall degrading enzymes-chitinase, β-1, 3 glucanase, protease and cellulase were tested during different incubation period (24, 48, 72 and 96 h) when Trichoderma spp. grew in presence of pathogen cell wall in synthetic media. The antagonist T. koningi MTCC 796 induced higher chitinase and protease activity at 24 h incubation while β-1, 3 glucanase activities was elevated 1.18 fold during 72 to 96 h. Total phenol was produced significantly higher in culture supernatant of T. koningi MTCC 796 antagonist followed by T. hamatum NBAII Tha 1 and T. harzianum NBAII Th 1 at 48 h incubation. The growth inhibitions of pathogen during antagonism was positively correlated with coiling pattern of antagonists at 14 DAI, and induction of chitinase, β-1, 3 glucanase and total phenol content.

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Section: Discussionsupporting

confidence: 91%

Antagonism of Trichoderma spp. against Macrophomina phaseolina: Evaluation of Coiling and Cell Wall Degrading Enzymatic Activities

HP¹

2012

J Plant Pathol Microb

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“…The spectrum of pathogens affected by Trichoderma sp. is very broad, and includes the following genera: Armillaria, Botrytis, Chondrostereum, Colletotrichum, Dematophora, Diapor-the, Endothia, Fulvia, Fusarium, Fusicladium, Helmin-thosporium, Macrophomina, Monilia, Nectria, Phoma, Phytophthora, Plasmopara, Pseudoperonospora, Pythium, Rhizoctonia, Rhizopus, Sclerotinia, Sclerotium, Venturia, Verticillium (Datnoff et al 1995;De Melo and Faull 2000;Monte 2001;Tronsmo and Dennis 1977). It is important to notice, that some fungi belonging to Trichoderma genus such as Trichoderma atroviride G79/11 are known to produce cellulases, but also can produce other enzymes, which makes them suitable for antifungal biopreparations (Oszust et al 2017a, b).…”

Section: Trichoderma Sppmentioning

confidence: 99%

Review report on the role of bioproducts, biopreparations, biostimulants and microbial inoculants in organic production of fruit

Pylak

Oszust

Frąc

2019

Rev Environ Sci Biotechnol

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The demand for ecologically cultivated fruits is growing each year, but the yields in organic farming are still lower than the yields in conventional farming. Moreover plant pathogens are a serious threat in organic fruit production and the assortment of conventional pesticides is limited in organic farming. The European Commission has established regulations that state which types of bioproducts can be used in organic farming. Appropriately chosen biopreparations might be a solution to this problem. Biopreparations are products used to inhibit the growth of pathogenic fungi or bacteria, stimulate plants growth and enhance plant nutrient uptake. They can be composed of plant growth promoting bacteria and fungi, plant extracts or animals-derived compounds. The second category of bioproducts useful for enhancing yield and nutrient uptake are biostimulants. They can be composed of microorganisms, protein hydrolysates, seaweed extracts and other substances. Bacteria, fungi and yeasts are used in biocontrol of plant pathogens and in enhancing plants growth by producing hormone-like substances and reducing symptoms of environmental stress caused by weather or soil factors such as drought or low nutrient availability.

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“…Several reports have demonstrated positive relationship between the production of chitinase and protease and the ability to control plant disease. Enzymes induction by bioagents during the parasite interaction could inhibit the growth of several fungal plant pathogens by degrading cell walls (Melo and Faull, 2000;Harman et al, 2004). The destructive parasitizing of lyses of the pathogen by extracellular, degrative enzymes such as chitinas considered an effective mechanism implicated in biological control against soil borne pathogenic fungi (Chet et al, 1990;Bastakoti et al, 2017).…”

Section: In Vitro Ability Of the Tested Bioagents For Pgp Inductionmentioning

confidence: 99%

POTENTIAL OF Trichoderma viride AND Rhizobium leguminosarum IN COMBINATION WITH TOPSIN M70 FUNGICIDE FOR MANAGEMENT DAMPING-OFF DISEASE OF PEA PLANTS CAUSED BY Rhizoctonia solani

El-Wahab¹,

El-Sayed²

2018

Zagazig Journal of Agricultural Research

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Efficacies of Trichoderma viride, Rhizobium leguminosarum and the fungicide Topsin M70% individually and/or their mixtures were tested in vitro and greenhouse conditions to control damping-off and root rot diseases of pea plants (Pisum sativum L., cv. Master P) caused by Rhizoctonia solani. The ability of tested Rhizobium leguminosarum and Trichodermia viride to exhibit plant growth promoting rhizobacteria (PGPR)-properties including ability to solubilize-P and production of IAA, as well as production of siderophores, hydrocyanic acid (HCN) and secretion of cell-wall degrading enzymes (chitinase and protease) were investigated. Also, under in vitro conditions the effect of Topsin M70% on growth of R. solani and T. viride, R. leguminosarum and their mixtures was determined. The fungicide effective concentration was found to range from 10 to 50 ppm for R. solani and T. viride mycelial growth being 83.30, 100, 76.08 and 100% at 40 and 50 ppm of Topsin M70%. The same trend was obtained with R. leguminosarum that showed maximum tolerance at 40 and 50 ppm of Topsin M70% with the average of 52.19 and 59.85% inhibition over control, respectively. Additionally, greenhouse conditions were conducted on sandy clay soil at Etay El Baroud Agricultural Research Station, Beheria Government, Egypt to study the singly effect of seed soaking in T. viride, R. leguminosarum or their mixtures with the soil drench fungicide in pots after sowing of pea cv. Master P in concern. Significant decrease of damping-off and root rot of pea was obtained. Numbers of survived plants, shoot length as well as, fresh and dry weight were recorded. The combined treatments R. leguminosarum + Topsin M70%, T. viride + Topsin M70% and R. leguminosarum + T. viride + Topsin M70% were the most effective ones resulting the least percentage of total dampingoff and the highest percentage of healthy plants being 96.67 and100.00%, respectively. Seed treatment with T. viride, R. leguminosarum and drenched fungicide individually or in mixture improved plant growth as indicated by the increased growth parameters and the physiological activities (phytosynthetic pigments, peroxidase and polyphenol oxidase), especially in combined treatments. Peroxidase and polyphenol oxidase activities were increased in the different treatments-even, the fungicide drench treatment. Reduction in total damping-off was positively correlated with both peroxidase (R 2 = 96.70, P ˂ 0.005) and polyphenol oxidase (R 2 = 89.60, P ˂ 0.005) activities.

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Parasitism of Rhizoctonia solani by strains of Trichoderma spp.

Cited by 36 publications

References 18 publications

Antagonism of Trichoderma spp. against Macrophomina phaseolina: Evaluation of Coiling and Cell Wall Degrading Enzymatic Activities

Antagonism of Trichoderma spp. against Macrophomina phaseolina: Evaluation of Coiling and Cell Wall Degrading Enzymatic Activities

Review report on the role of bioproducts, biopreparations, biostimulants and microbial inoculants in organic production of fruit

POTENTIAL OF Trichoderma viride AND Rhizobium leguminosarum IN COMBINATION WITH TOPSIN M70 FUNGICIDE FOR MANAGEMENT DAMPING-OFF DISEASE OF PEA PLANTS CAUSED BY Rhizoctonia solani

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