Association and predatory capacity of fungi <i>Pochonia chlamydosporia</i> and <i>Arthrobotrys cladodes</i> in the biological control of parasitic helminths of bovines

Vieira, Ítalo Stoupa; Oliveira, Isabela de Castro; Campos, Artur Kanadani; Araújo, Jackson Víctor de

doi:10.1017/s003118201900060x

Cited by 20 publications

(22 citation statements)

References 17 publications

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“…The fungus Pochonia chlamydosporia predates nematode eggs through appressory structures, which promote mechanical and enzymatic action of egg penetration (Braga et al ., 2008) and has larvicidal action on gastrointestinal parasitic nematodes of cattle (Vieira et al ., 2019). The fungus Arthrobotrys cladodes produces traps that promote the adhesion, immobilization, penetration and destruction of nematode larvae (Oliveira et al ., 2018 a ).…”

Section: Introductionmentioning

confidence: 99%

Arthrobotrys cladodes and Pochonia chlamydosporia in the biological control of nematodiosis in extensive bovine production system

Vieira¹,

Oliveira²,

Freitas³

et al. 2020

Parasitology

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Cattle production in extensive systems favours the occurrence of gastrointestinal nematodes, and the use of nematophagous fungi complements the control strategies for these nematodes. The aim of this study was to evaluate the effectiveness of the fungi Arthrobotrys cladodes and Pochonia chlamydosporia in the biological control of gastrointestinal parasitic nematodes in grazing cattle. Twenty-four calves were randomly divided into four groups and allocated to independent paddocks from February 2018 to January 2019. In the first group, the animals received pellets containing P. chlamydosporia. In the second group, the animals received pellets containing A. cladodes. In the third group, the animals received pellets containing a combination of the fungi A. cladodes and P. chlamydosporia. In the control group, the animals received pellets without fungus. The combined use of A. cladodes and P. chlamydosporia showed greater efficacy in the biological control of bovine gastrointestinal parasitic nematodes than the same fungi used separately. The parasite load was lower and weight gain was greater (P ⩽ 0.05) in the groups of cattle treated with nematophagous fungi. Therefore, the use of A. cladodes and P. chlamydosporia is promising in the biological control of nematodiosis in cattle.

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Section: Introductionmentioning

confidence: 99%

Arthrobotrys cladodes and Pochonia chlamydosporia in the biological control of nematodiosis in extensive bovine production system

Vieira¹,

Oliveira²,

Freitas³

et al. 2020

Parasitology

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“…Vieira et al . (2019) reported that the combined use of the fungi A. cladodes and P. chlamydosporia obtained, under laboratory conditions, higher nematicidal activity over bovine parasitic nematodes than A. cladodes and P. chlamydosporia used separately. It is necessary to carry out studies under natural conditions to evaluate the effect of combined use of nematophagous fungi on the biological control of bovine parasitic nematodes, since the temperature and nutrient availability conditions of the environment vary during the year and do not meet the needs growth of all fungal strains.…”

Section: Discussionmentioning

confidence: 99%

“…Arthrobotrys cladodes and D. flagrans produce traps that promote adhesion, immobilization, penetration and destruction of nematode larvae (Grønvold et al, 1996;Oliveira et al, 2018a). Pochonia chlamydosporia parasites eggs of nematodes through structures known as apressories, which promote egg penetration by mechanical and enzymatic action (Zare et al, 2001;Stroze et al, 2013) and presents larvicidal action on bovine parasitic nematodes (Vieira et al, 2019). According to Mukhtar & Pervaz (2003), Van Ooij (2011) and Yang et al (2013), enzymes and toxins produced by P. chlamydosporia are capable of killing of nematode larvae.…”

Section: Introductionmentioning

confidence: 99%

“…Duddingtonia flagrans , A. cladodes and P. chlamydosporia are nematophagous fungi with great potential for use in the biological control of the parasitic nematodes of cattle (Silva et al ., 2011; Oliveira et al ., 2018a, b; Vieira et al ., 2019). Arthrobotrys cladodes and D. flagrans produce traps that promote adhesion, immobilization, penetration and destruction of nematode larvae (Grønvold et al ., 1996; Oliveira et al ., 2018a).…”

Section: Introductionmentioning

confidence: 99%

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In vitrobiological control of bovine parasitic nematodes byArthrobotrys cladodes,Duddingtonia flagransandPochonia chlamydosporiaunder different temperature conditions

et al. 2020

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Variations in temperature can affect the development of nematophagous fungi, especially when they are used in the biological control of parasitic nematodes in the pastures where cattle are reared. The aim of this work was to evaluate the effects of temperature on the performance of nematophagous fungi in the biological control of bovine parasitic nematodes. The mycelial growth, chlamydospore production and nematicidal activity of Duddingtonia flagrans, Arthrobotrys cladodes and Pochonia chlamydosporia were evaluated at 15, 20, 25, 30 and 35°C. The fungal strains achieved mycelial growth, chlamydospore production and nematicidal activity on parasitic nematodes under all temperature conditions tested. The fungi showed higher growth at intermediate temperatures (20, 25 and 30°C) than at the extremes of 15 and 35°C. At 25 and 30°C, D. flagrans realized 96.8 and 94.5% nematicidal activity on bovine parasitic nematodes, respectively. Arthrobotrys cladodes effected nematicidal activity of 85.3 and 83.5%, at 20 and 25°C, respectively. At 20 and 30°C, P. chlamydosporia achieved nematicidal activity of 81.3 and 87.4%, respectively. The maximum chlamydospore production was reached at 20, 25 and 30°C for D. flagrans, at 20 and 25°C for A. cladodes and P. chlamydosporia. The results of this study demonstrated that the tested fungal strains of D. flagrans, A. cladodes and P. chlamydosporia, when used in the biological control of bovine parasitic nematodes, were not limited by in vitro temperature variations. Therefore, the use of these strains of fungi as biological control agents of parasitic nematodes is promising.

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“…Fungi are selected based on their chitin degrading and antiparasitic properties reported in literature [ 17 , 18 , 19 ]. P. chlamydosporia , whose ovicidal activity on nematode eggs is already known [ 20 , 21 ], is chosen as a model to be compared against the inhibiting activity of the other selected fungi.…”

Section: Introductionmentioning

confidence: 99%

In Vitro Inhibiting Effects of Three Fungal Species on Eggs of Donkey Gastrointestinal Strongyles

Maestrini

Nardoni

Mancianti

et al. 2020

Veterinary Sciences

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Recently, donkeys have gained popularity mainly due to the use of donkey milk by the cosmetic industry and for human consumption. Gastrointestinal strongyles (GIS) are considered a potential cause of disease and reduced production in infected donkeys. European laws limit the use of anthelmintic drugs for the control of GIS in dairy donkey farms, thus the need to develop alternative control methods. This study aimed to test the in vitro inhibiting effects of three chitin degrading fungi (Scopulariopsis brevicaulis, Metarhizium anisopliae, and Beauveria bassiana) on the hatch and viability of donkey GIS eggs by using the egg hatch test, and to compare their activity to that of Pochonia chlamydosporia. About 150 eggs were added to 0.5 mL of sterile saline solution containing about 1.4 × 108 spores of each fungal species or with 0.5 mL of sterile saline solution only (untreated controls). After incubation, the percentage of egg hatch reduction was calculated, and data were statistically analyzed. All fungi were able to significantly reduce (p < 0.05) the hatch of GIS eggs compared to the untreated controls. Further studies that aim to investigate the efficiency of these fungi in reducing donkey GIS eggs in contaminated environments are encouraged.

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Association and predatory capacity of fungi Pochonia chlamydosporia and Arthrobotrys cladodes in the biological control of parasitic helminths of bovines

Cited by 20 publications

References 17 publications

Arthrobotrys cladodes and Pochonia chlamydosporia in the biological control of nematodiosis in extensive bovine production system

Arthrobotrys cladodes and Pochonia chlamydosporia in the biological control of nematodiosis in extensive bovine production system

In vitrobiological control of bovine parasitic nematodes byArthrobotrys cladodes,Duddingtonia flagransandPochonia chlamydosporiaunder different temperature conditions

In Vitro Inhibiting Effects of Three Fungal Species on Eggs of Donkey Gastrointestinal Strongyles

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