Muscodor vitigenus is a recently described endophytic fungus of Paullinia paullinioides, a liana growing in the understorey of the rainforests of the Peruvian Amazon. This fungus produces naphthalene under certain cultural conditions. Naphthalene produced by M. vitigenus was identified by gas chromatography/mass spectrometry. Its chromatographic and mass spectral properties were identical to authentic naphthalene. Agar plugs supporting growth of the fungus and producing known amounts of naphthalene effectively repelled the adult stage of the wheat stem sawfly, Cephus cinctus, in Y-tube bioassay tests. Authentic naphthalene, at comparable concentrations to those in tests involving the fungus itself, mimicked the insect repellency of the fungus. Although other Muscodor spp. produce volatile antimicrobials, M. vitigenus is unique in its ability to produce naphthalene almost exclusively. This report also describes the potential practical implications of M. vitigenus.
HeathR. R.,
ManukianA.
1992; Development and evaluation of systems to collect volatile semiochemicals from insects and plants using a charcoal-infused medium for air purification. J Chem Ecol 18:1209–1226
MorrillW. L,
WeaverD. K.,
JohnsonG. D.
2001; Trap strip and field border modification for management of the wheat stem sawfly ( Hymenoptera: Cephidae)
. J Entomol Sci 36:34–45
PinkertonF.,
StrobelG. A.
1976; Serinol as an activator of toxin production in attenuated cultures of H. sacchari
. Proc Natl Acad Sci USA 73:4007–4011
StoneJ. K,
BaconC. W.,
WhiteJ. F.
2000; An overview of endophytic microbes: endophytism defined. In Microbial Endophytes pp 3–29 Edited by
BaconC. W.,
WhiteJ. F.
New York: Marcel Dekker;
WorapongJ,
StrobelG. A,
DaisyB. H,
CastilloU,
BairdG.,
HessW. M.
2001; Muscodor albus anam. gen. et sp. nov., an endophyte from Cinnamomum zeylanicum
. Mycotaxon 79:67–79
WorapongJ,
StrobelG. A,
DaisyB. H,
CastilloU,
BairdG.,
HessW. M.
2002; Muscodor roseu s sp. nov., an endophyte from Grevillea pteridifolia
. Mycotaxon 81:463–475