Mitidjospirone, a new spirodioxynaphthalene and GC-MS screening of secondary metabolites produced by strains of associated to dieback.

Mitidjospirone, a new spiridioxynaphthalene, was isolated from the mycelial extract of a strain of , a recently described species belonging to the family Botryosphaeriaceae. Its structure was elucidated by extensive spectroscopic analysis and the absolute configuration was determined by electronic circular dichroism (ECD) experiment. Furthermore, several known compounds were identified during the screening of secondary metabolites produced by four strains of .