Ability of the fungus Duddingtonia flagrans to adapt to the cyathostomin egg-output by spreading chlamydospores

Silva, Adolfo Paz; Francisco, I.; Valero-Coss, Rosa Ofelia; Cortiñas, F. J.; Sánchez, Jesús; Francisco, R.; Arias, M.; Suárez, J. L.; López-Arellano, María Eugenia; Sánchez-Andrade, R.; Gives, Pedro Mendoza de

doi:10.1016/j.vetpar.2011.02.014

Cited by 48 publications

(28 citation statements)

References 22 publications

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“…They observed that statistical differences in EPG counts (p < 0.05) only started at the 60 th day of the experiment, with a fecal egg count reduction on day 180 that was similar to what was seen in the present study (76% in adults and 83% in juveniles). Other studies have also demonstrated the ability of D. flagrans to survive after passage through the gastrointestinal tract of animals, making it a strong ally in combating free-living stages of the gastrointestinal nematodes (WALLER, 2006;PAZ-SILVA et al, 2011;SAGÜÉS et al, 2011;FITZ-ARANDA et al, 2015;ARIAS et al, 2013;SILVA et al, 2014). Strategic use of chemical treatment aided in this, by enabling accelerated reduction of the parasite load in the animals.…”

Section: Discussionmentioning

confidence: 99%

Control of sheep gastrointestinal nematodes using the combination of Duddingtonia flagrans and Levamisole Hydrochloride 5%

Vilela

Feitosa

Braga

et al. 2018

Rev. Bras. Parasitol. Vet.

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The objective was to evaluate the action of D. flagrans pellets in association with Levamisole Hydrochloride 5% for controlling sheep gastrointestinal nematodes in the northeastern Brazil. Three groups of six sheep each were formed: group 1 received 3 g of the pellets (0.6 g of D. flagrans mycelium) for each 10 kg b.w., twice a week for six months, and deworming with Levamisole Hydrochloride 5% when EPG ≥ 1500; group 2 received a dosage of Levamisole Hydrochloride 5% when EPG ≥ 1500; and group 3 received 3 g of pellets without fungi for each 10 kg b.w., twice a week for six months. EPG counts, larval cultures, packed cell volume (PCV) and weighing were performed every 15 days; monthly, samples of grass from each paddock were collected. The mean EPG of the groups began to statistically differ from day 30 (p < 0.05). Group 1 required less deworming with Levamisole Hydrochloride 5% and showed superiority of PCV values throughout the experiment (p < 0.05). There was a significant reduction (p < 0.05) in L3 recovery in the group 1 paddock from day 30 onwards. The use of D. flagrans pellets in association with Levamisole Hydrochloride 5% was effective for controlling gastrointestinal nematodes.

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Section: Discussionmentioning

confidence: 99%

Control of sheep gastrointestinal nematodes using the combination of Duddingtonia flagrans and Levamisole Hydrochloride 5%

Vilela

Feitosa

Braga

et al. 2018

Rev. Bras. Parasitol. Vet.

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“…However, the public health significance of anthelmintic drug residues in products of animal origin, the presence of these drugs in animal feces, their negative influence on biodiversity and agricultural ecosystem sustainability (due to the heavy reliance on systematic and sometimes abusive therapeutic use) and reports of helminth strains tolerant or resistant to different anthelmintic groups have triggered investigation into alternative methods for the sustainable control of gastrointestinal nematodes of ruminants (CAI et al, 2016;GRONVOLD et al, 1996;SUAREZ, 2002). The non-chemotherapeutic approach to the control of nematode gastrointestinal parasites of ruminants using nematophagous fungi as biological Campos et al Acta Veterinaria Brasilica March 11 (2017) [213][214][215][216][217][218] 214 control agents showed consistent results (LARSEN, 2000;PAZ-SILVA et al, 2011). Because of differences in the nematophagous capacities of these fungi, studies to distinguish the species and the variations among them are required (ARAÚJO et al, 2004a;CARVALHO;BERNARDO;.…”

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In vitro nematophagous activity of predatory fungi on infective larvae of Strongyloides papillosus

Campos

Valadão

Carvalho

et al. 2017

AVB

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An in vitro experiment was carried out to assess the effect of fungal isolates of the genus Arthrobotrys, Duddingtonia, Monacrosporium and Nematoctonus on infective Strongyloides papillosus larvae. A suspension of 1,000 infective S. papillosus larvae was dripped on to Petri dishes containing fungi grown in agar-water. There was a statistically significant difference (p<0.05) among all the isolates and the fungus-free control. Comparing the results between isolates, difference was observed in some isolates of the genus Arthrobotrys (CG 719, I40, A1, A2, C1, B1), D. flagrans (CG722), Monacrosporium (CGI, SF53, NF34A) and N. robustus (D1) that showed a better capture and destruction results and consequently a greater decrease in the average of the uncaptured larvae recovered. The results showed that there may be variations in the predatory capacity of different species and among fungal isolates of the same species on Strongyloides papillosus and indicated that nematophagous fungi may be used for the biological control of this helminth. WALLER, 1998;JACOBS et al., 2016;TAYLOR et al., 2016). Infections by this parasite can cause gastrointestinal disturbances (enteritis, diarrhea and loss of appetite), affect body weight and delay growth and sudden death syndrome can occur (MEHLHORN, 2016;PIENNAR et al., 1999;TAIRA et al., 1992).In Brazil, benzimidazole and macrocyclic lactone anthelmintics are the principal forms of control used against gastrointestinal nematode parasites of ruminants (BOWMAN, 2010;CHARLES;FURLONG, 1996). However, the public health significance of anthelmintic drug residues in products of animal origin, the presence of these drugs in animal feces, their negative influence on biodiversity and agricultural ecosystem sustainability (due to the heavy reliance on systematic and sometimes abusive therapeutic use) and reports of helminth strains tolerant or resistant to different anthelmintic groups have triggered investigation into alternative methods for the sustainable control of gastrointestinal nematodes of ruminants (CAI et al., 2016;GRONVOLD et al., 1996;SUAREZ, 2002). The non-chemotherapeutic approach to the control of nematode gastrointestinal parasites of ruminants using nematophagous fungi as biological Campos et al. Acta Veterinaria Brasilica March 11 (2017) [213][214][215][216][217][218] 214 control agents showed consistent results (LARSEN, 2000;PAZ-SILVA et al., 2011). Because of differences in the nematophagous capacities of these fungi, studies to distinguish the species and the variations among them are required (ARAÚJO et al., 2004a;CARVALHO;BERNARDO;.The purpose of this study was to evaluate the activity of Brazilian isolates of nematophagous fungi of the Arthrobotrys, Duddingtonia, Monacrosporium and Nematoctonus genera against S. papillosus larvae in laboratory conditions. MATERIALS AND METHODSCultures of 17 fungal isolates of the Arthrobotrys, Duddingtonia, Monacrosporium and Nematoctonus genera (Table 1), grown on 1.7% corn meal agar culture media (CMA, DIFCO ® ) in test tubes, we...

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“…El mecanismo de acción de los hongos nematófagos es una combinación de la liberación de enzimas hidrolíticas extracelulares como proteasas séricas, quitinasas y colagenasas que digieren la cutícula del nematodo y fuerza mecánica (órganos de captura) (Paz-Silva et al, 2011). Una hora después de la penetración, el hongo forma un bulbo infectivo en el interior del nematodo y en pocas horas ocupa completamente el cuerpo de este (Assis et al, 2013).…”

Section: Depredadoresunclassified

Uso de hongos hematófagos en el control biológico de nematodos gastrointestinales en ovinos

García-Corredor

Pulido-Medellín

Anaya

2016

Rev. Logos Cienc. Tecnol.

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El control de nematodos gastrointestinales en ovinos es realizado casi exclusivamente con productos de origen químico que por lo general ofrecen buenos resultados, sin embargo su inadecuado uso ha generado la presencia de resistencia en algunos grupos parasitarios. Consecuente con esto y teniendo en cuenta que cada vez es mayor la preocupación encaminada hacia el consumo de alimentos inocuos que favorezcan la salud humana, se ha buscado desarrollar nuevos métodos de control de origen biológico que permitan manejar y controlar la presencia de parásitos gastrointestinales al interior de las explotaciones pecuarias mediante la utilización de enemigos naturales contra estos agentes patógenos en el medio ambiente. Dentro de los métodos biológicos más utilizados para el control de nematodos gastrointestinales en ovinos se encuentran los hongos nematófagos, los cuales tienen propiedades como la reducción del número de larvas de nematodos en materia fecal y la facilidad de atravesar el tracto gastrointestinal preservando su capacidad germinativa, lo que facilita la posibilidad de desarrollar variadas formas de administración. En la presente revisión se trataran las especies de hongos nematófagos más utilizadas, así como las distintas formas de administración ensayadas en la actualidad.

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Ability of the fungus Duddingtonia flagrans to adapt to the cyathostomin egg-output by spreading chlamydospores

Cited by 48 publications

References 22 publications

Control of sheep gastrointestinal nematodes using the combination of Duddingtonia flagrans and Levamisole Hydrochloride 5%

Control of sheep gastrointestinal nematodes using the combination of Duddingtonia flagrans and Levamisole Hydrochloride 5%

In vitro nematophagous activity of predatory fungi on infective larvae of Strongyloides papillosus

Uso de hongos hematófagos en el control biológico de nematodos gastrointestinales en ovinos

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