Data/hora: 10/06/2024 09:14:59

Provedor de dados: 	86	
País: 	Brazil	
Título: 	Enzyme activities and pectin breakdown of sapodilla submitted to 1-methylcyclopropene	
Autores: 	Morais,Patrícia Lígia Dantas de; Lima,Luiz Carlos de Oliveira; Miranda,Maria Raquel Alcântara de; Alves,José Donizete; Alves,Ricardo Elesbão; Silva,José Daniel.	
Data: 	2008-01-01	
Ano: 	2008	
Palavras-chave: 	Manilkara zapota; Beta-galactosidase; Ripening.	
Resumo: 	The objective of this work was to investigate the influence of 1-methylcyclopropene (1-MCP) at 300 nL L-1 on activities of cell wall hidrolytic enzymes and pectin breakdown changes which Sapodilla (Manilkara zapota cv. Itapirema 31) cell wall undergoes during ripening. Sapodilla were treated with ethylene antagonist 1-MCP at 300 nL L-1 for 12 hours and then, stored under a modified atmosphere at 25º C for 23 days. Firmness, total and soluble pectin and cell wall enzymes were monitored during storage. 1-MCP at 300 nL L-1 for 12 hours delayed significantly softening of sapodilla for 11 days at 25º C. 1-MCP postharvest treatment affected the activities of cell wall degrading enzymes pectinmethylesterase and polygalacturonase and completely suppressed increases in beta-galactosidase for 8 days, resulting in less pectin solubilization. Beta-galactosidase seems relevant to softening of sapodilla and is probably responsible for modification of both pectin and xyloglucan-cellulose microfibril network.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2008000100003	
Editor: 	Embrapa Secretaria de Pesquisa e Desenvolvimento

Pesquisa Agropecuária Brasileira	
Relação: 	10.1590/S0100-204X2008000100003	
Formato: 	text/html	
Fonte: 	Pesquisa Agropecuária Brasileira  v.43 n.1 2008	
Fonte: 	info:eu-repo/semantics/openAccess