Hyperphoretic Dispersal of a Pyxidiophora Anamorph

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Science  23 May 1986:
Vol. 232, Issue 4753, pp. 993-995
DOI: 10.1126/science.232.4753.993


It has been suggested that Thaxteriola species and other minute, nonmycelial fungi associated with arthropods have phylogenetic relationships with the Laboulbeniales. However, direct development of the thallus of Thaxteriola from an ascospore of Pyxidiophora has now been discovered. Thaxteriola is specialized for dispersal by mites carried on pine bark beetles; other fungi dispersed by arthropods in this symbiotic assemblage rely primarily on arthropod specializations.