FITOHORMONAS REDUCEN DAÑOS POR Nacobbus aberrans EN TOMATE (Solanum lycopersicum L.)

Martínez, Susana Beatriz; Garbi, Mariana; Puig, Lucrecia; Guillermo, B.; Giménez, Daniel

doi:10.29393/chjaas37-5frsm50005

Cited by 3 publications

(3 citation statements)

References 9 publications

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“…In addition, the hormone effect as elicitors of resistance to Nacobbus s.l. was corroborated by a significantly lower number of galls, gall index, nematode reproduction and increased the total yield of tomato plants, with salicylic acid being the most effective (10 -4 M) ( Martinez et al., 2021 ).…”

Section: Sustainable Strategies For Managementmentioning

confidence: 90%

“…for resistance to M. incognita , showed that the application of exogenous hormones affects plant defenses by inducing changes on the nematode performance (invasion, damage and reproduction). Recently, 2021 ; Martinez et al. (2020 ) reported the impact of the exogenous application of hormones on tomato defenses from N. aberrans s.l.…”

Section: Sustainable Strategies For Managementmentioning

confidence: 99%

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Sustainable strategies for management of the “false root-knot nematode” Nacobbus spp.

et al. 2022

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The genus Nacobbus, known as the false root-knot nematode, is native to the American continent and comprises polyphagous species adapted to a wide range of climatic conditions. Alone or in combination with other biotic and abiotic factors, Nacobbus spp. can cause significant economic yield losses on main food crops such as potato, sugar beet, tomato, pepper and bean, in South and North America. Although the genus distribution is restricted to the American continent, it has quarantine importance and is subject to international legislation to prevent its spread to other regions, such as the European Union. The management of Nacobbus spp. remains unsatisfactory due to the lack of information related to different aspects of its life cycle, survival stages in the soil and in plant material, a rapid and reliable diagnostic method for its detection and the insufficient source of resistant plant genotypes. Due to the high toxicity of chemical nematicides, the search for alternatives has been intensified. Therefore, this review reports findings on the application of environmentally benign treatments to manage Nacobbus spp. Biological control strategies, such as the use of different organisms (mainly bacteria, fungi and entomopathogenic nematodes) and other eco-compatible approaches (such as metabolites, essential oils, plant extracts, phytohormones and amendments), either alone or as part of a combined control strategy, are discussed. Knowledge of potential sources of resistance for genetic improvement for crops susceptible to Nacobbus spp. are also reported. The sustainable strategies outlined here offer immediate benefits, not only to counter the pathogen, but also as good alternatives to improve crop health and growth.

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Section: Sustainable Strategies For Managementmentioning

confidence: 90%

Section: Sustainable Strategies For Managementmentioning

confidence: 99%

Sustainable strategies for management of the “false root-knot nematode” Nacobbus spp.

et al. 2022

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“…Al inicio del ensayo, el suelo se encontraba naturalmente infestado de N. aberrans, donde se encontró un número significativamente mayor a Dorylaimus spp. (Martínez et al, 2021).…”

Section: Introductionunclassified

Nematodes associated with eggplant crop in Cañada Honda, Mexico

Valadez

Siller

Chávez

et al. 2021

Remexca

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La berenjena es un cultivo de gran desarrollo y oportunidad de crecimiento económico a nivel mundial, se puede ver comprometido por plagas y enfermedades fitopatógenas que afecten el rendimiento en la producción del cultivo. El objetivo de la investigación fue la identificación de nematodos asociados al cultivo de la berenjena, el muestreo se realizó en el estado de Aguascalientes en la comunidad de Cañada Honda (latitud 22 002254, latitud norte 22° 08’ 11584’’, longitud oeste -102 192580, 102° 11’ 33 2862’’) en el año 2019, la técnica utilizada de extracción de nematodos filiformes fue la de tamizado y fluctuación por medio de centrífuga con solución de sacarosa. Las claves para la identificación de nematodos fueron las propuestas por Cid del Prado (2009), las claves de Esienbcach (1985); Nickle (1991); Hunt (2009), para las muestras de raíz se realizó la disección de las agallas para la obtención de los posibles nematodos existentes en la raíz, de igual manera se realizó un análisis visual de cada raíz y se clasificó el daño causado por agallas. El promedio de nematodos en cada muestra de suelo analizada fue de 85 nematodos en 100 g de suelo, el índice de daño a las raíces demostró un valor de 5 a 6 según la escala de Bridge y Page. Se identificaron cuatro géneros: Nacobbus spp., Rhabditis spp., Psilechus spp., y Dorylaimus spp.

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PLA2A gene from Arabidopsis thaliana in response to infection by Ustilago maydis

Casarrubias-Castillo

Méndez-Morán

2021

JNAS

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In this work, U. maydis-Arabidopsis pathosystem was used to evaluate the PLP2A Arabidopsis gene roll in response to U. maydis infection. For this, both wild-type and pla2a mutant plants were inoculated with a haploid strain of U. maydis, and the progress of the infection was followed, results show that transcript plays an important role in the establishment of the infection being evident in the mutant plant compared to wild-type plants. On the other hand, the orthologous gene was found in corn, the natural host of U. maydis, with 69% identity to the AtPLA2A gene. The PLP2A gene expression was analyzed by RT-PCR assays and the results showed that this gene is induced from the first day after inoculation, the transcript increases as the infection progresses; this supports the theory that the transcript AtPLA2A is involved in the mechanisms of resistance and susceptibility to the pathogen. The use of Arabidopsis has made it possible to understand the defense responses in the plant and the pathogenic process of U. maydis, therefore, the results obtained can clarify the role of PLA2A in a comparative and integrative way in host and non-host plants of U. maydis.

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FITOHORMONAS REDUCEN DAÑOS POR Nacobbus aberrans EN TOMATE (Solanum lycopersicum L.)

Cited by 3 publications

References 9 publications

Sustainable strategies for management of the “false root-knot nematode” Nacobbus spp.

Sustainable strategies for management of the “false root-knot nematode” Nacobbus spp.

Nematodes associated with eggplant crop in Cañada Honda, Mexico

PLA2A gene from Arabidopsis thaliana in response to infection by Ustilago maydis

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