Data/hora: 04/06/2024 15:04:55

Provedor de dados: | 65
País: | Brazil
Título: | Enzymatic activity in braúna seeds subjected to thermal stress
Autores: | Ataíde,Glauciana da Mata; Borges,Eduardo Euclydes de Lima e; Flores,Andressa Vasconcelos.
Data: | 2016-06-01
Ano: | 2016
Palavras-chave: | Α-amylase; Β-amylase; Glucose-6-phosphate dehydrogenase; Melanoxylon brauna.
Resumo: | ABSTRACT: To occur seed germination distinct hydrolytic enzymes work together, enabling primary root protrusion. The objective of this study was to investigate changes in the activities of α-amylase, β-amylase, and glucose-6-phosphate dehydrogenase (G6PdH) during germination of Melanoxylon brauna Schott. seeds under thermal stress. To this end, seeds of this species were germinated under constant temperature (10, 25, 30 or 40°C) and samples were collected every 24h during a 96-h period, in which the activity of the enzymes were evaluated. At 25 and 30°C, optimal temperatures for the germination of the species, the activities of α-amylase, β-amylase, and G6PdH increased with seed imbibitions. At 10 and 40°C, enzyme activities decreased, impairing the germination process.
Tipo: | Info:eu-repo/semantics/article
Idioma: | Inglês
Identificador: | http://www.scielo.br/scielo.php?script=sci_arttext&pid=S0103-84782016000601044
Editor: | Universidade Federal de Santa Maria
Relação: | 10.1590/0103-8478cr20141800
Formato: | text/html
Fonte: | Ciência Rural  v.46 n.6 2016
Fonte: | info:eu-repo/semantics/openAccess