In vitro evaluation of physicochemical variables on the nematophagous fungus Duddingtonia flagrans.
biological control
digestive microenvironments
nematophagous fungus
Journal
Journal of basic microbiology
ISSN: 1521-4028
Titre abrégé: J Basic Microbiol
Pays: Germany
ID NLM: 8503885
Informations de publication
Date de publication:
Jun 2021
Jun 2021
Historique:
revised:
24
03
2021
received:
25
01
2021
accepted:
27
03
2021
pubmed:
15
4
2021
medline:
8
10
2021
entrez:
14
4
2021
Statut:
ppublish
Résumé
Duddingtonia flagrans is a biological alternative to the use of anthelmintic drugs in ruminants. This fungus must be ingested by the animal, pass through the cavities of the digestive tract and reach the feces where it develops traps that capture the nematodes. The severe conditions encountered in this process negatively affect the fungus, which is reflected in the low recovery rates compared to the amount administered. The aim of this study was to evaluate independently the in vitro effect of typical physical and chemical conditions of the gastrointestinal cavities of ruminants on the concentration, viability, and the in vitro nematode predatory ability of the chlamydospores of D. flagrans. The factors evaluated individually were pH (2, 6, and 8), temperature (28 ± 2°C and 39 ± 2°C), exposure to artificial saliva, and milling. The results showed that the concentration and viability of D. flagrans were not affected by the action of pH, temperature, milling, or exposure to artificial saliva. Regarding the in vitro nematode predatory ability, a reduction was observed after the milling process and the exposure for 24 h at different pH.
Identifiants
pubmed: 33852161
doi: 10.1002/jobm.202100039
doi:
Substances chimiques
Anthelmintics
0
Types de publication
Journal Article
Langues
eng
Sous-ensembles de citation
IM
Pagination
547-556Subventions
Organisme : Ministerio de Agricultura y Desarrollo Rural
Organisme : Corporacion colombiana de investigacion agropecuria, Agrosavia
Informations de copyright
© 2021 Wiley-VCH GmbH.
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