Pochonia chlamydosporia controls Meloidogyne incognita on carrot

Bontempo, Amanda Ferreira; Fernandes, Rafael Henrique; Lopes, José de Sousa Miguel; Freitas, Leandro Grassi de; Lopes, E. A.

doi:10.1007/s13313-014-0283-x

Cited by 32 publications

(10 citation statements)

References 7 publications

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“…None of the strains significantly reduced the galling or egg mass indexes, nor even the number of eggs per gram of root in tomato plants under either moderate or high nematode infestation levels (5,000 and 10,000 eggs per pot, respectively). In contrast, other studies under greenhouse and field conditions showed considerable suppression of RKN populations by both fungal species (Kerry and Hidalgo-D ıaz, 2004;Siddiqui and Akhtar, 2009;Aminuzzaman et al, 2013;Bontempo et al, 2014). In a study with P. lilacinum carried out by Cabanillas and Barker (1989), the fungal inoculum level and the application time were shown to have impact on Meloidogyne control.…”

Section: Discussionmentioning

confidence: 86%

Evaluation of Pochonia chlamydosporia and Purpureocillium lilacinum for Suppression of Meloidogyne enterolobii on Tomato and Banana

Silva

Carneiro

Faria

et al. 2017

Journal of Nematology

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Meloidogyne enterolobii is one of the most important root-knot nematode in tropical regions, due to its ability to overcome resistance mechanisms of a number of host plants. The lack of new and safe active ingredients against this nematode has restricted control alternatives for growers. Egg-parasitic fungi have been considered as potential candidates for the development of bionematicides. In tissue culture plates, Pochonia chlamydosporia (var. catenulata and chlamydosporia) and Purpureocillium lilacinum strains were screened for their ability to infect eggs of the root-knot nematode M. enterolobii on water-agar surfaces. Reduction in the hatching of J2 varied from 13% to 84%, depending on strain. The more efficacious strains reduced hatchability of J2 by 57% to 84% when compared to untreated eggs, but average reductions were only 37% to 55% when the same strains were applied to egg masses. Combinations of fungal isolates (one of each species) did not increase the control efficacy in vitro. In experiments in which 10,000 nematode eggs were inoculated per plant, reductions in the number of eggs after 12 months were seen in three of four treatments in banana plants, reaching 34% for P. chlamydosporia var. catenulata. No significant reductions were seen in tomato plants after 3 mon. In another experiment with tomato plants using either P. chlamydosporia var. catenulata or P. lilacinum, the number of eggs was reduced by 34% and 44%, respectively, when initial infestation level was low (500 nematode eggs per plant), but tested strains were not effective under a moderate infestation level (5,000 eggs per plant). Under all infestation levels tested in this work, gall and egg mass indexes (MI) did not differ from the untreated controls, bringing concerns related to the practical adoption of this control strategy by farmers. In our opinion, if the fungi P. chlamydosporia and P. lilacinum are to be used as biocontrol tools toward M. entorolobii, they should focus on agricultural settings with low soil infestation levels and within an IPM approach.

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Section: Discussionmentioning

confidence: 86%

Evaluation of Pochonia chlamydosporia and Purpureocillium lilacinum for Suppression of Meloidogyne enterolobii on Tomato and Banana

Silva

Carneiro

Faria

et al. 2017

Journal of Nematology

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“…Several microbial biological control agents (BCAs) have been developed for PPN control including Pasteuria penetrans Sayre and Starr , Pochonia chlamydosporia (Goddard) Zare and Gams and Purpureocilium lilacinum (Thom) Luangsa-ard, Hou- braken, Hywel-Jones and Samson ( Abd-Elgawad and Askary, 2018 , Li et al, 2015 , Stirling, 2018 ). The drawback with microbial BCAs is that they are usually slow acting, target specific developmental stages and are often restricted to specific PPN species ( Bontempo et al, 2014 , Dahlin et al, 2019 , Viggiano et al, 2014 ). Recent studies show that several rhizosphere competent bacteria and fungi produce volatile organic compounds (VOCs) with nematicidal properties ( Bui et al, 2019 , Xu et al, 2015 , Yang et al, 2012 , Zhai et al, 2018 ).…”

Section: Introductionmentioning

confidence: 99%

Volatiles of the entomopathogenic fungus, Metarhizium brunneum, attract and kill plant parasitic nematodes

Khoja

Eltayef

Baxter³

et al. 2021

Biological Control

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“…Por otro lado, la capacidad de P. chlamydosporia var. catenulata para colonizar los suelos, los sustratos y la rizosfera vegetal, así como su actividad parasítica, es esencial en la selección de aislamientos para el manejo de nematodos f itoparásitos (Viggiano et al, 2014;Bontempo et al, 2014;Ceiro e Hidalgo, 2017). Se sabe que esa especie fúngica produce clamidosporas, las cuales se consideran estructuras de resistencia frente a condiciones ecológicas adversas en su medio natural, por ello, constituyen la principal fuente de inóculo de los productos basados en esa especie fúngica (Ceiro et al, 2014).…”

Section: Introductionunclassified

Establecimiento in vitro del hongo nematófago Pochonia chlamydosporia var. catenulata en diferentes suelos

Ceiro-Catasus¹,

Hidalgo-Viltres²,

Hidalgo-Díaz³

et al. 2021

Terra

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Las condiciones edáf icas presentes en los agroecosistemas pueden influir en el establecimiento y la efectividad de un agente de control microbiano para nematodos. Por esta razón, se propuso como objetivo de la presente investigación, evaluar el establecimiento in vitro de Pochonia chlamydosporia var. catenulata en suelos agrícolas cubanos de tipo Ferralítico, Fluvisol y Pardo. Para ello, tres tipos de suelos se analizaron mediante la técnica suelo membrana, evaluándose en cada uno de ellos las poblaciones microbianas nativas, el crecimiento micelial y el crecimiento relativo del hongo nematófago de interés. Se utilizó un diseño completamente aleatorizado y el procesamiento estadístico de los datos se realizó mediante un ANOVA factorial y regresión lineal. Los resultados demostraron que, P. chlamydosporia var. catenulata creció y produjo clamidosporas en todas las condiciones edáf icas evaluadas, no obstante, el mayor crecimiento se registró en los suelos Fluvisol y Ferralítico comparado con el Pardo. Lo cual sugirió, que las mayores poblaciones microbianas nativas y el pH ácido presente en el suelo Pardo, pudieron afectar el crecimiento de este hongo. Los resultados conf irman que la especie fúngica nematófaga P. chlamydosporia var. catenulata posee capacidad de adaptación, persistencia y multiplicación en diferentes suelos y se sugiere su utilización en los suelos Fluvisol, Ferralítico y Pardo, siempre que no presenten un pH ácido ≤ 4.17.

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Pochonia chlamydosporia controls Meloidogyne incognita on carrot

Cited by 32 publications

References 7 publications

Evaluation of Pochonia chlamydosporia and Purpureocillium lilacinum for Suppression of Meloidogyne enterolobii on Tomato and Banana

Evaluation of Pochonia chlamydosporia and Purpureocillium lilacinum for Suppression of Meloidogyne enterolobii on Tomato and Banana

Volatiles of the entomopathogenic fungus, Metarhizium brunneum, attract and kill plant parasitic nematodes

Establecimiento in vitro del hongo nematófago Pochonia chlamydosporia var. catenulata en diferentes suelos

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