Keywords
Enterobius vermicularis
nematophagous fungi
Pochonia chlamydosporia
How to Cite
Abstract
The present study compared the ovicidal capacity of two isolates from nematophagous fungus Pochonia chlamydosporia (VC1 and VC4) on Enterobius vermicularis eggs using 2% water-agar (2% WA). E. vermicularis eggs were plated on 2% WA Petri dishes containing cultured fungal isolates, and on control plates without fungi. After incubating for 5 and 10 days, 100 eggs were removed and classified according to the following parameters: type 1, biochemical and physiological effect without eggshell morphological damage; type 2,lytic effect with morphological alteration on eggshell and embryo; and type 3, lytic effect with morphological alteration on both eggshell and embryo, in addition to hyphal penetration and internal egg colonization. The fungal isolates were effective in causing complete damage on E. vermicularis eggs showing the type 3effect at 5 and 10 days after being in contact with fungus (p>0.01). Therefore, the P. chlamydosporia (VC1and VC4) isolates negatively influenced on E. vermicularis eggs, and this fungus might be considered a potential candidate for being a biological control of nematodes.References
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