Survival of the nematophagous fungus Duddingtonia flagrans to in vitro segments of sheep gastrointestinal tract

Céspedes‐Gutiérrez, Elizabeth; Aragón, Diana Marcela; Álvarez, Martha Isabel Gómez; Cubides-Cárdenas, Jaime; Cortés-Rojas, Diego Francisco

doi:10.1016/j.exppara.2021.108172

Cited by 3 publications

(1 citation statement)

References 26 publications

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“…The production of resistance spores called chlamydospores enables the survival and dissemination of this fungus; this structure has important glycogen reserves and has thick walls produced along the hyphae [ 49 , 50 ]. Due to their characteristics, chlamydospores are able to transit through the gastrointestinal tract of ruminants and maintain their predatory capacity when they are eliminated in the feces [ 28 , 40 , 51 ]. In addition to these capabilities, the production of numerous chlamydospores is what allows the development of products for biological control [ 52 ].…”

Section: Resultsmentioning

confidence: 99%

Efficiency of Experimental Formulation Containing Duddingtonia flagrans and Pochonia chlamydosporia against Moniezia expansa Eggs

Ribeiro,

de Almeida Moura,

e Silva

et al. 2023

Pathogens

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This study aimed to evaluate the effectiveness of the experimental formulation containing chlamydospores of Duddingtonia flagrans and Pochonia chlamydosporia fungi, against Moniezia expansa. Two experiments were carried out. The first experiment evaluated the in vitro efficacy using 1 g of the experimental formulation (V1) added to 100 M. expansa eggs and the control (V2) (without the fungal formulation). Intact eggs or eggs with alterations were counted in order to evaluate their effectiveness. The second experiment evaluated the action of the fungal formulation on M. expansa eggs after passing through the gastrointestinal tract of goats. Three groups were identified as B1, B2, and B3, which received 1.0, 1.5 g of experimental fungal formulation, and placebo, respectively. In experiment 1, all the eggs in V1 were subjected to the predatory action of fungi, while in V2, the eggs remained intact. In experiment 2, the reduction of eggs in groups B1 and B2 were 49% and 57% 24 h after ingestion, 60% and 63% 48 h after, and 48% and 58% 72 h after. The predatory capacity against M. expansa eggs shown in the tests demonstrated that experimental fungal formulation has the potential to be used on integrated helminth control programs.

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