| Registro completo |
| Provedor de dados: |
PAB
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| País: |
Brazil
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| Título: |
Enzyme activities and pectin breakdown of sapodilla submitted to 1-methylcyclopropene
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| 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
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| Data: |
2008-01-01
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| Ano: |
2008
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| Palavras-chave: |
Manilkara zapota
Beta-galactosidase
Ripening
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| 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.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0100-204X2008000100003
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| Editor: |
Embrapa Secretaria de Pesquisa e Desenvolvimento
Pesquisa Agropecuária Brasileira
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| Relação: |
10.1590/S0100-204X2008000100003
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| Formato: |
text/html
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| Fonte: |
Pesquisa Agropecuária Brasileira v.43 n.1 2008
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| Direitos: |
info:eu-repo/semantics/openAccess
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