In vitro evaluation of biological fungicides against Curvularia eragrostidis, a phytopathogenic fungus of pineapple crop

In vitro evaluation of biological fungicides against Curvularia eragrostidis, a phytopathogenic fungus of pineapple crop

Abstract In vitro effectiveness of two plant extract-based products, System Max® (Mimosa tenuiflora + Quercus robur) and Sedric 4X® (Yucca schidigera); and three biological control agents-based products, BliteFree® (Streptomyces spp.), BioFungus Clean® (Bacillus subtilis + B. thuringiensis + Trichoderma harzianum + T. viride), and Tonka® (Bacillus subtilis + Trichoderma harzianum + Streptomyces lydicus) were evaluated against Curvularia eragrostidis, an associated fungus to leaf spot disease in pineapple (Ananas comosus) plants. The strain was identified by phylogenetic reconstruction using the rDNA ITS1-5.8S-ITS2 sequences as Curvularia eragrostidis. Through a doses response-bioassays five concentrations: 0 (control), 0.125, 0.25, 0.5 and 1.0% of each commercial product were tested. Daily mycelial growth (DMG), mycelial growth inhibition (% MGI) and the lethal mean concentration (LC50) were calculated. Sedric 4X® showed the highest% MGI (75%) at highest concentration, while Tonka® showed the highest% MGI (65%) at lower concentration, being constant (65.3-66.9%) at all the concentrations tested. The lowers values of EC50 were achieved by Tonka® (0.008%), BliteFree® (0.015%) and BioFungus Clean® (0.017%). In contrast, the highest CE50 were reached by Sedric 4X® (0.260%) and System Max® (3.5%). SystemMax® and Sedric 4X®, showed a positive relation between concentration and% MGI, despite its highest CE50 values. The biofungicides seem to be more effective against C. eragrostidis than plant extracts fungicides.

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Main Authors: Hernández-Navarro,Eduardo, Agustín-Maravilla,Gustavo Ángel, Sánchez-Rangel,Juan Carlos, Valadez-Ramírez,Pedro, Chan-Cupul,Wilberth
Format: Digital revista
Language:English
Published: Sociedad Mexicana de Fitopatología A.C. 2023
Online Access:http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S0185-33092023000100093
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spelling oai:scielo:S0185-330920230001000932023-08-07In vitro evaluation of biological fungicides against Curvularia eragrostidis, a phytopathogenic fungus of pineapple cropHernández-Navarro,EduardoAgustín-Maravilla,Gustavo ÁngelSánchez-Rangel,Juan CarlosValadez-Ramírez,PedroChan-Cupul,Wilberth Bacillus CL50 phytopathogen Trichoderma Streptomyces Abstract In vitro effectiveness of two plant extract-based products, System Max® (Mimosa tenuiflora + Quercus robur) and Sedric 4X® (Yucca schidigera); and three biological control agents-based products, BliteFree® (Streptomyces spp.), BioFungus Clean® (Bacillus subtilis + B. thuringiensis + Trichoderma harzianum + T. viride), and Tonka® (Bacillus subtilis + Trichoderma harzianum + Streptomyces lydicus) were evaluated against Curvularia eragrostidis, an associated fungus to leaf spot disease in pineapple (Ananas comosus) plants. The strain was identified by phylogenetic reconstruction using the rDNA ITS1-5.8S-ITS2 sequences as Curvularia eragrostidis. Through a doses response-bioassays five concentrations: 0 (control), 0.125, 0.25, 0.5 and 1.0% of each commercial product were tested. Daily mycelial growth (DMG), mycelial growth inhibition (% MGI) and the lethal mean concentration (LC50) were calculated. Sedric 4X® showed the highest% MGI (75%) at highest concentration, while Tonka® showed the highest% MGI (65%) at lower concentration, being constant (65.3-66.9%) at all the concentrations tested. The lowers values of EC50 were achieved by Tonka® (0.008%), BliteFree® (0.015%) and BioFungus Clean® (0.017%). In contrast, the highest CE50 were reached by Sedric 4X® (0.260%) and System Max® (3.5%). SystemMax® and Sedric 4X®, showed a positive relation between concentration and% MGI, despite its highest CE50 values. The biofungicides seem to be more effective against C. eragrostidis than plant extracts fungicides.info:eu-repo/semantics/openAccessSociedad Mexicana de Fitopatología A.C.Revista mexicana de fitopatología v.41 n.1 20232023-01-01info:eu-repo/semantics/reporttext/htmlhttp://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S0185-33092023000100093en10.18781/r.mex.fit.2206-4
institution SCIELO
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country México
countrycode MX
component Revista
access En linea
databasecode rev-scielo-mx
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region America del Norte
libraryname SciELO
language English
format Digital
author Hernández-Navarro,Eduardo
Agustín-Maravilla,Gustavo Ángel
Sánchez-Rangel,Juan Carlos
Valadez-Ramírez,Pedro
Chan-Cupul,Wilberth
spellingShingle Hernández-Navarro,Eduardo
Agustín-Maravilla,Gustavo Ángel
Sánchez-Rangel,Juan Carlos
Valadez-Ramírez,Pedro
Chan-Cupul,Wilberth
In vitro evaluation of biological fungicides against Curvularia eragrostidis, a phytopathogenic fungus of pineapple crop
author_facet Hernández-Navarro,Eduardo
Agustín-Maravilla,Gustavo Ángel
Sánchez-Rangel,Juan Carlos
Valadez-Ramírez,Pedro
Chan-Cupul,Wilberth
author_sort Hernández-Navarro,Eduardo
title In vitro evaluation of biological fungicides against Curvularia eragrostidis, a phytopathogenic fungus of pineapple crop
title_short In vitro evaluation of biological fungicides against Curvularia eragrostidis, a phytopathogenic fungus of pineapple crop
title_full In vitro evaluation of biological fungicides against Curvularia eragrostidis, a phytopathogenic fungus of pineapple crop
title_fullStr In vitro evaluation of biological fungicides against Curvularia eragrostidis, a phytopathogenic fungus of pineapple crop
title_full_unstemmed In vitro evaluation of biological fungicides against Curvularia eragrostidis, a phytopathogenic fungus of pineapple crop
title_sort in vitro evaluation of biological fungicides against curvularia eragrostidis, a phytopathogenic fungus of pineapple crop
description Abstract In vitro effectiveness of two plant extract-based products, System Max® (Mimosa tenuiflora + Quercus robur) and Sedric 4X® (Yucca schidigera); and three biological control agents-based products, BliteFree® (Streptomyces spp.), BioFungus Clean® (Bacillus subtilis + B. thuringiensis + Trichoderma harzianum + T. viride), and Tonka® (Bacillus subtilis + Trichoderma harzianum + Streptomyces lydicus) were evaluated against Curvularia eragrostidis, an associated fungus to leaf spot disease in pineapple (Ananas comosus) plants. The strain was identified by phylogenetic reconstruction using the rDNA ITS1-5.8S-ITS2 sequences as Curvularia eragrostidis. Through a doses response-bioassays five concentrations: 0 (control), 0.125, 0.25, 0.5 and 1.0% of each commercial product were tested. Daily mycelial growth (DMG), mycelial growth inhibition (% MGI) and the lethal mean concentration (LC50) were calculated. Sedric 4X® showed the highest% MGI (75%) at highest concentration, while Tonka® showed the highest% MGI (65%) at lower concentration, being constant (65.3-66.9%) at all the concentrations tested. The lowers values of EC50 were achieved by Tonka® (0.008%), BliteFree® (0.015%) and BioFungus Clean® (0.017%). In contrast, the highest CE50 were reached by Sedric 4X® (0.260%) and System Max® (3.5%). SystemMax® and Sedric 4X®, showed a positive relation between concentration and% MGI, despite its highest CE50 values. The biofungicides seem to be more effective against C. eragrostidis than plant extracts fungicides.
publisher Sociedad Mexicana de Fitopatología A.C.
publishDate 2023
url http://www.scielo.org.mx/scielo.php?script=sci_arttext&pid=S0185-33092023000100093
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