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Scanning electron microscopy reveals differences in surface morphology between basidiospores and conidia of Heterobasidion annosum
Author(s) -
Shaw C. G.,
Florance E. R.
Publication year - 1979
Publication title -
european journal of forest pathology
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.535
H-Index - 49
eISSN - 1439-0329
pISSN - 0300-1237
DOI - 10.1111/j.1439-0329.1979.tb00685.x
Subject(s) - conidium , heterobasidion annosum , spore , ultrastructure , fomes , biology , scanning electron microscope , botany , morphology (biology) , picea abies , materials science , zoology , composite material
Basidiospores and conidia of Heterobasidion annosum ( Fomes annosus ) were examined by light and scanning electron microscopy (SEM). Light microscopy did not allow for accurate and reliable separation between the two spore types. Contrarily, SEM clearly demonstrated that conidia have relatively smooth surfaces whereas basidiospores are consistently ornamented with numerous echinulations. SEM also demonstrated a definite dissimilarity in the shape and location of the apicular structures on basidiospores and conidia. With these differences now apparent, attempts can be made to examine airborne inoculum of H. annosum for the presence, absence, and/or relative abundance of the two spore types. Additional Key Words: Ultrastructure; spore ornamentation.