First report of the activity of predatory fungi on Angiostrongylus cantonensis (Nematoda: Angiostrongylidae) first-stage larvae

Trap formation (black arrow) by the tested fungal isolates Monacrosporium and and predated first stage larval of A. cantonensis (white arrow). The nematode Angiostrongylus cantonensis causes eosinophilic meningoencephalitis in humans and thus alternative methods of control should be studied. The obj...

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Bibliographic Details
Published in:Acta tropica 2013-09, Vol.127 (3), p.187-190
Main Authors: Paula, Alessandra Teixeira de, Braga, Fabio Ribeiro, Carvalho, Lorendane Millena de, Lelis, Rosane Teixeira, Mello, Ingrid Ney Kramer de, Tavela, Alexandre de Oliveira, Soares, Fillipe Elias de Freitas, Junior, Arnaldo Maldonado, Garcia, Juberlan da Silva, Araújo, Jackson Victor de
Format: Article
Language:English
Subjects:
Angiostrongylus cantonensis
Angiostrongylus cantonensis - microbiology
Animals
Arthrobotrys
Biological control
conidia
control methods
Duddingtonia
Duddingtonia flagrans
fungi
Fungi - physiology
Host-Pathogen Interactions
humans
Larva - microbiology
larvae
meningoencephalitis
Monacrosporium
Nematoda
Parastrongylus cantonensis
predation
Zoonosis
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Summary:Trap formation (black arrow) by the tested fungal isolates Monacrosporium and and predated first stage larval of A. cantonensis (white arrow). The nematode Angiostrongylus cantonensis causes eosinophilic meningoencephalitis in humans and thus alternative methods of control should be studied. The objective of this work was to evaluate the predatory capacity of eight fungal isolates of the species Duddingtonia flagrans (AC001, CG768 and CG722), Monacrosporium thaumasium (NF34), M. sinense (SF53) and Arthrobotrys robusta (I31), A. cladodes (CG719) and A. conoides (I40) on first-stage larvae (L1) of A. cantonensis under laboratory conditions. The treated groups contained 1000 conidia of the fungal isolates and 1000 A. cantonensis L1 in Petri dishes containing 2% water-agar medium (2% WA). The control group (without fungi) contained only 1000 A. cantonensis L1 in 2% WA. Evidence of predation was observed at the end of 7 days. Percentage reductions in L1 were: AC001, 82.8%; CG768, 71.0%; CG722, 72.8%; NF34, 86.7%; SF53, 89.7%; I40, 48.3%; CG719, 84.7%; and I31, 80.4%. No significant difference was observed (p>0.01) between the actions of the isolates used; however, a difference was noted (p
ISSN:0001-706X
1873-6254
DOI:10.1016/j.actatropica.2013.04.014