We are describing the host-parasite interaction of this system. Very little is known about the true biological nature of endolithic fungi and fungal-like structures that have been described as present in calcareous marine shells and shell fragments. Organisms consider the criteria for defining and identifying species of Labyrinthula. A combination of morphological and molecular characteristics are being used in this study. DNA sequence analysis is being used to help understand the phylogenetic position of Labyrinthula and related thraustochytrids.
Initial analysis suggests a basal branch from the heterokont protists.
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