| effects of available water on growth and competition of southern pine beetle associated fungi. | competitive, interactions among bark beetle associated fungi are potentially influenced by abiotic factors. water potential, in particular, undergoes marked changes over the course of beetle colonization of tree hosts. to investigate the impact of water potential on competition among three southern pine beetle associated fungi, ophiostoma minus, entomocorticium sp. a and ceratocystiopsis ranaculosus, we utilized artificial media with water potentials of 0, -5, -10, and -20 mpa. growth of all thr ... | 2004 | 15119355 |
| effects of tree phytochemistry on the interactions among endophloedic fungi associated with the southern pine beetle. | we examined the interaction between host trees and fungi associated 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 colonization of three consistent fungal associates. two of these fungi, entomocorticium sp. a and ophiostoma ranaculosum, are obligate mutualists with d. frontalis, and the third associate is a blue-staining fungus, o. ... | 2005 | 15898500 |
| competitive interactions among symbiotic fungi of the southern pine beetle. | the southern pine beetle, a damaging pest of conifers, is intimately linked to three symbiotic fungi. two fungi, ceratocystiopsis ranaculosus and entomocorticium sp. a, are transported within specialized structures (mycangia) in the beetle exoskeleton and are mutualists of the beetle. a third fungus, ophiostoma minus, is transported externally on the beetle exoskeleton (phoretically) and is an antagonist of the beetle. this study examined competitive interactions among these three fungi. the res ... | 1997 | 16535518 |