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Type: Artigo de periódico
Title: Changes in hyphal morphology due to chitosan treatment in some fungal species
Author: Oliveira Junior, Enio Nazaré de
Melo, Itamar Soares de
Franco, Telma Teixeira
Abstract: In 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 (F A 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.
Subject: chitosan
alternative control of fungi
antifungal activity
plant pathogenic fungi
fungal morphology
Editor: Instituto de Tecnologia do Paraná - Tecpar
Rights: aberto
Identifier DOI: 10.1590/S1516-89132012000500001
Date Issue: 1-Oct-2012
Appears in Collections:Artigos e Materiais de Revistas Científicas - Unicamp

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