Abstract
Ultrastructural ohservations of isolates presented in this paper revealed that conidia and hyphaae taken from 6-day old end 30-day-old cultures differed in morphology of membranous bodies and occurrence of electron opaque bodies (EOB). Signle Sporothrix conidia of 30-day-old cultures exhibited a shrinkage of cytoplasm and endospores. It is possible that formation of endospores might result in producing extra cell walls to protect the shrinking or fragmenting cytoplasm.
Keywords
Ophiostoma querei; ageing; senescence; endospores