Open AccessInteraction of nematodes with nematophagus fungi: induction of trap formation, attraction and detection of attractants
Author(s) -
Saxena Geeta,
Dayal R.,
Mukerji K.G.
Publication year - 1987
Publication title -
fems microbiology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.899
H-Index - 151
eISSN - 1574-6968
pISSN - 0378-1097
DOI - 10.1111/j.1574-6968.1987.tb02408.x
Subject(s) - attraction , biology , nematode , fungus , spots , botany , chemistry , ecology , philosophy , linguistics
Induction of trap formation in Arthrobotrys oligospora, A. conoides and Monacrosporium cystosporum was studied during a 24 h period in the presence of the free‐living nematodes Panagrellus redivivus on various nutrient media. A definite pattern of trap formation was observed in these fungi. Low nutrient mineral salt medium had the most pronounced effect on trap formation. Attraction and repulsion of P. redivivus towards these three nematophagous and three non‐nematophagous fungi was studied. The nematodes were attracted towards three nematophagous and one non‐nematophagous fungi, the other two repelled them. Attractants of the nematophagous fungi were determined by thin‐layer chromatography. In the case of A. oligospora and M. cystosporum , four spots were traced, whereas in A. conoides , five spots were detected.