Abstract
Four strains of several species of the genusFusarium: F. culmorum, F. sambucinum andF. verticillioides were investigated from the morphological and cultural point of view. To carry out the study two techniques were used : light microscopical and cryogenic scanning electron microscopical observations. The conidiogenous cells formation of all fungi took place inside of false heads from one conidiophore or more. The branched monophialides emerged from the degradation of false heads. HypotheticallyF. culmorum andF. sambucinum no formed microconidia, what was observed that immature conidia in the substrate were consequence of the destruction of the false heads by a bad manipulation of the samples later of their processing. Sporulation of all strains was carried at the water activities of 0.995, 0.98 and 0.95 at both temperatures. The formation structure did not change with the temperature and the water activity of the strains but it was observed that increasing the value numeric of these abiotic factors their development was faster.
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Sempere, F., Santamarina, M.P. The conidia formation of severalFusarium species. Ann. Microbiol. 59, 663–674 (2009). https://doi.org/10.1007/BF03179206
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DOI: https://doi.org/10.1007/BF03179206