01488naa a2200241 a 450000100080000000500110000800800410001910000270006024501060008726000090019352007440020265000220094665000130096865000220098165000270100365000210103065000100105165300330106165300240109470000190111870000180113777300910115519416192012-12-06       2012    bl uuuu     u00u1 u    #d1 aOLIVEIRA JUNIOR, E. N.  aChanges in hyphal morphology due to chitosan treatment in some fungal species.h[electronic resource]  c2012  aIn this work, changes in the hyphal morphology due to chitosan treatment in some fungal species were studied. Scanning electron microscope (SEM) observations revealed that chitosans with molar fraction of acetyl groups (FA 0.16 and 0.18) and degree of polymerization (DP 1,089 and 1,242) had a direct effect on the morphology of the chitosan-treated fungi, reflecting its potential for causing a delay in the growth of Alternaria alternata (500 µg × mL-1), Botrytis cinerea (1,000 µg × mL-1), Penicillium expansum (1,000 µg × mL-1) and Rhizopus stolonifer (500 µg × mL-1). Mycelial aggregation and structural changes such as excessive branching, swelling of the cell wall and hyphae size reduction were observed in the micrographs.  aAntifungal agents  aChitosan  afungal morphology  aPlant pathogenic fungi  aDoença fúngica  aFungo  aAlternative control of fungi  aAntifungal activity1 aMELO, I. S. de1 aFRANCO, T. T.  tBrazilian Archives of Biology and Technology, Curitibagv. 55, n. 5, p. 637-646, 2012.