Data/hora: 13/06/2024 12:39:47

Biblioteca(s): 	Embrapa Meio Ambiente.	
Data corrente: 	06/12/2012	
Data da última atualização: 	06/12/2012	
Autoria: 	OLIVEIRA JUNIOR, E. N.; MELO, I. S. de; FRANCO, T. T.	
Afiliação: 	ENIO NAZARÉ DE OLIVEIRA JÚNIOR, UNICAMP; ITAMAR SOARES DE MELO, CNPMA; TELMA TEIXEIRA FRANCO, UNICAMP.	
Título: 	Changes in hyphal morphology due to chitosan treatment in some fungal species.	
Ano de publicação: 	2012	
Fonte/Imprenta: 	Brazilian Archives of Biology and Technology, Curitiba, v. 55, n. 5, p. 637-646, 2012.	
Idioma: 	Inglês	
Conteúdo: 	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 (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.	
Palavras-Chave: 	Alternative control of fungi; Antifungal activity.	
Thesagro: 	Doença fúngica; Fungo.	
Thesaurus Nal: 	Antifungal agents; Chitosan; fungal morphology; Plant pathogenic fungi.	
Categoria do assunto: 	S Ciências Biológicas	
URL: 	http://ainfo.cnptia.embrapa.br/digital/bitstream/item/71697/1/2012AP38.pdf	
Registro original: 	Embrapa Meio Ambiente (CNPMA)	
Exemplares: 	CNPMA - (11617-1) - UPC - AP - DD -  -  -  - DIS