THE CONIDIAL SURFACE OF BOTRYTIS-CINEREA AND SEVERAL OTHER BOTRYTIS SPECIES

Surfaces of conidia of Botrytis cinerea Pers: Fr. and several other Bo trytis species were studied using scanning electron microscopy and tra nsmission electron microscopy with carbon-platinum replicas. The surfa ce of dry conidia of B. cinerea was rough with numerous short (200-250 nm) protuberances. Upon hydration and redrying these protuberances di sappeared. The surfaces of conidia of other Botrytis species were simi lar to the surface of B. cinerea. The basket-weave pattern of hydropho bin rodlets present on the surfaces of spores of many fungal species w as not observed on conidia of any of the Botrytis species. Rodlets wer e seen when the methods employed in this study were used to examine co nidia of Aspergillus nidulans (Eidam) Winter, Neurospora crassa Shear et Dodge, or Penicillium camembertii Them:, fungal species known to po ssess rodlets.