Data/hora: 05/06/2024 04:44:58

Provedor de dados: | 52
País: | Brazil
Título: | Changes in hyphal morphology due to chitosan treatment in some fungal species
Autores: | Oliveira Junior,Enio Nazaré de; Melo,Itamar Soares de; Franco,Telma Teixeira.
Data: | 2012-10-01
Ano: | 2012
Palavras-chave: | Chitosan; Alternative control of fungi; Antifungal activity; Plant pathogenic fungi; Fungal morphology.
Resumo: | 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.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132012000500001
Editor: | Instituto de Tecnologia do Paraná - Tecpar
Relação: | 10.1590/S1516-89132012000500001
Formato: | text/html
Fonte: | Brazilian Archives of Biology and Technology  v.55 n.5 2012
Fonte: | info:eu-repo/semantics/openAccess