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Summary: Journal of Chemical Ecology, Vol. 31, No. 3, March 2005 (C 2005)
DOI: 10.1007/s10886-005-2035-4
EFFECTS OF TREE PHYTOCHEMISTRY ON THE
INTERACTIONS AMONG ENDOPHLOEDIC FUNGI
ASSOCIATED WITH THE SOUTHERN PINE BEETLE
R. W. HOFSTETTER,1,
J. B. MAHFOUZ,2
K. D. KLEPZIG,2
and M. P. AYRES
1Department of Biological Sciences, Dartmouth College
Hanover NH 03755, USA
2Southern Research Station, USDA Forest Service
Pineville LA 71360, USA
(Received July 8, 2004; accepted November 8, 2004)
Abstract--We examined the interaction between host trees and fungi asso-
ciated with a tree-killing bark beetle, Dendroctonus frontalis. We evaluated
(1) the response of four Pinus species to fungal invasion and (2) the effects
of plant secondary metabolites on primary growth of and secondary coloniza-
tion of three consistent fungal associates. Two of these fungi, Entomocorticium
sp. A and Ophiostoma ranaculosum, are obligate mutualists with D. frontalis,
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