Razas de Fusarium oxysporum f. sp. lycopersici en predios tomateros en San Luis Potosí

Martínez, Rosendo Hernández; Benítez, Alfonso López; Escalante, Fernando Borrego; Velázquez, José Espinoza; Aspeytia, David Sánchez; Mendoza, Ignacio Eduardo Maldonado; Ochoa, Luis Alejandro López

doi:10.29312/remexca.v5i7.838

Cited by 9 publications

(11 citation statements)

References 16 publications

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“…Nevertheless, the tomato crop is affected by several fungal diseases as Botrytis cinerea, Leveillula taurica, Alternaria solani, and F. oxysporum (Villasanti & Pantoja, 2013). F. oxysporum causes vascular wilt that is one of the most destructive diseases on tomato crop, and it can cause yield losses until of the 80 % (Marlatt et al, 1996;Hernández-Martínez et al, 2014;González et al, 2012). At present exist several methods to control the F. oxysporum; chemical control is the most used; nevertheless, several reports indicate that farmers use intensive applications of synthetics products, triggering on phytopathogenic microorganisms resistance (Bautista-Baños, 2006).…”

Section: Introductionmentioning

confidence: 99%

Antifungal activity of phytochemical compounds of extracts from Mexican semi-desert plants against Fusarium oxysporum from tomato by microdilution in plate method

Tucuch-Pérez

Arredondo-Valdés

Hernández-Castillo

2020

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Introduction: In several regions of the world, Fusarium oxysporum causes losses on tomato crops; for control it, chemical fungicides are used. Nevertheless, these fungicides causing environmental and resistance problems; therefore, ecological alternatives as plant extracts have been developed. Due to the aim of this work, identify phytochemicals present in ethanolic and aqueous extracts from Agave lechuguilla qualitatively, Carya illinoinensis, Jatropha dioica, Larrea tridentata, and Lippia graveolens and determine their antifungal activity against F. oxysporum.Method: The plants collected from the northeast of Mexico; crudes and concentrated plant extracts obtained; the inhibition percentage and inhibitory concentration to 50 % (IC50) of F. oxysporum for each plant extract were determinate trough microdilution in the plate methodResults: The essential phytochemicals were flavonoids, saponins, tannins, and quinones. The antifungal activity showed at 1000 mg/L inhibition around 40 to 60% by aqueous crude extracts from leaves of L. graveolens and concentrated aqueous extracts from the stem of L. graveolens, respectively. The ethanolic extracts presented 100 % of inhibition for crude extracts of husk from C. illinoinensis; in leaves and stem from L. graveolens the inhibition started from 250 mg/L; for resuspended extracts, the inhibition started from 125 mg/L with L. graveolens stem and leaves; and finally in roots of A. lechuguilla and leaves from L. graveolens the inhibition started from to 250 and 500 mg/L respectively. The best IC50 was of 8.02 mg/L from the ethanolic resuspended extract of L. graveolens stem.Conclusion: The ethanolic plant extracts from L. graveolens, A. lechuguilla, and C. illinoinensis, showed 100 % of inhibiting activity against the development of F. oxysporum, representing an alternative for control of F. oxysporum.

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Section: Introductionmentioning

confidence: 99%

Antifungal activity of phytochemical compounds of extracts from Mexican semi-desert plants against Fusarium oxysporum from tomato by microdilution in plate method

Tucuch-Pérez

Arredondo-Valdés

Hernández-Castillo

2020

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“…It is important to mention that, although the seed companies (Harris Moran and Nunhems) report that the seed is tolerant to the fungus, this does not mean it is not susceptible to the pathogen's attack, given that infection by and susceptibility to F. oxysporum race 3 has been found in genotypes Cid, Anibal and Sun 7705 in San Luis Potosí (Hernández-Martínez et al, 2014). It should also be highlighted that selecting genotypes tolerant to F. oxysporum is not the only parameter that should be considered when selecting the genotype to be sown, but also other parameters, including yield, tolerance to other diseases or pests and climatic conditions in the area where the crop is to be sown (Monge-Pérez, 2014), as well as the genetic variability that the pathogen may have in the soil, since F. oxysporum f. sp.…”

Section: Fully Bilingualmentioning

confidence: 99%

“…Revista Mexicana de FITOPATOLOGÍA Mexican Journal of Phytopathology reportan tolerancia a este hongo, no implica que no estén exentos al ataque de este patógeno, ya que se ha reportado infección y susceptibilidad de F. oxysporum raza 3 en los genotipos Cid, Anibal y Sun 7705 en San Luis Potosí (Hernández-Martínez et al, 2014). También cabe enfatizar que la selección de genotipos a la tolerancia de F. oxysporum no es el único parámetro a considerar al seleccionar un genotipo para su siembra, sino también se debe contemplar otros parámetros como rendimiento, tolerancia a otras enfermedades o plagas, condiciones climáticas donde se establece el cultivo (Monge-Pérez, 2014); así como la variabilidad genética que pudiera presentar el patógeno en el suelo, ya que se ha reportado variabilidad de F. oxysporum f. sp.…”

Section: Fully Bilingualunclassified

Wilt incidence in tomato genotypes (Solanum lycopersicum) in different production systems under shade mesh

Montiel-Peralta¹,

Ávila-Alistac²,

Montiel-Peralta³

et al. 2020

RMF

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El objetivo del trabajo fue identificar el agente asociado a la marchitez y evaluar la incidencia en nueve genotipos de jitomate comerciales: seis genotipos con crecimiento indeterminado (Cid, Sun 7705, Moctezuma, Cuauhtémoc, Ramsés y Aníbal) y tres de crecimiento determinado (Palomo, Pony express y Toro). Los genotipos se evaluaron en cuatro sistemas de producción en malla sombra: suelo con acolchado, y tezontle en bolsas de plástico polietileno de 37x37, 40x40 y 40x45 cm. La incidencia de marchitez se evaluó a 114 días en 3,476 plantas. De acuerdo a características morfológicas in vitro en medio PDA y cámara húmeda, de 18/20 plantas se aisló únicamente un hongo del género Fusarium y en 2/20 se obtuvieron aislados de Fusarium y Rhizoctonia solani. La mayor incidencia se observó en los genotipos Cid (20.1%), Moctezuma (22.4 %) y Sun 7705 (29.7%) y la menor en genotipos de crecimiento determinado. El sistema de producción en bolsas 37x37 cm presentó la mayor incidencia de marchitez (25.9%) con rendimiento de 4.3 t ha-1; mientras que en bolsas 40x45 cm la incidencia fue menor (4.7%). En los cuatro sistemas de producción, el menor rendimiento se obtuvo con el genotipo Sun 7705 con producción en rango de 59.7 - 70.6 t ha-1.

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“…It can be found in almost all the tomato producing regions (CANTÚ et al, 2014). This disease might provoke up to 100% loss in the crop (MARTÍNEZ et al, 2014).…”

Section: Introductionmentioning

confidence: 99%

Action of Trichodermil 1306 in the control of Fusarium oxysporum f. sp. lycopersici in tomato crops

et al. 2020

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Fusarium wilt, caused by Fusarium oxysporum f. sp. lycopersici, is one of the most important diseases of tomato crop in Brazil. Several alternatives to fungicides have been evaluated in search for products that control this disease and have low environmental impact and toxicity to living beings. In this context, the use of Trichoderma spp. is an alternative to agrochemicals, since they are bioregulators and antagonists of several phytopathogens. This work aimed to evaluate the antagonistic and mycoparasitory action of the Trichodermil 1306 biofungicide against F. oxysporum, and its action in the control of fusarium wilt in tomato seeds and seedlings. The biofungicide was used at concentrations of 0, 50, 100, and 150% of the dose recommended for application of 20 L with a backpack sprayer. The experiment was conducted in a completely randomized design with five replications. Data were submitted to analysis of variance and mean compared by Tukey’s test at 5% probability. The 100% Trichodermil concentration was the most efficient for treating tomato seeds. Although this concentration did not show differences in relation to the lowest dose used (50%) in the tomato seed antagonism, mycoparasitism and F. oxysporum incidence tests were recommended because that the lowest concentration resulted in 18% lower root protrusion than that observed with 100% dosage. The in vitro antagonistic and mycoparasitory action of this biological fungicide indicates its potential in the control of fusarium wilt in tomato crops.

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Razas de Fusarium oxysporum f. sp. lycopersici en predios tomateros en San Luis Potosí

Cited by 9 publications

References 16 publications

Antifungal activity of phytochemical compounds of extracts from Mexican semi-desert plants against Fusarium oxysporum from tomato by microdilution in plate method

Antifungal activity of phytochemical compounds of extracts from Mexican semi-desert plants against Fusarium oxysporum from tomato by microdilution in plate method

Wilt incidence in tomato genotypes (Solanum lycopersicum) in different production systems under shade mesh

Action of Trichodermil 1306 in the control of Fusarium oxysporum f. sp. lycopersici in tomato crops

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