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https://repositorio.inpa.gov.br/handle/1/15183
Título: | Primary metabolite mobilization during germination in rosewood (Aniba rosaeodora Ducke) seeds |
Autor: | Lima, Renata Braga Souza Gonçalves, José Francisco de Carvalho Pando, Silvana Cristina Fernandes, Andréia Varmes Santos, André Luis dos |
Palavras-chave: | Aniba Rosaeodora |
Data do documento: | 2008 |
Revista: | Revista Árvore |
É parte de: | Volume 32, Número 1, Pags. 19-25 |
Abstract: | This study aimed to characterize protein, oil, starch and soluble sugar mobilization as well as the activity of α-amylase during rosewood seed germination. Germination test was carried out at 25°C and the following parameters were analyzed: percentage of germination, initial, average, and final germination time. Seed reserve quantification was monitored in quiescent seeds and during different stages of radicle growth. Starch mobilization was studied in function of α-amylase activity. Germination reached 87.5% at the initial, average, and final time of 16, 21 and 30 days, respectively. Oil mobilization showed a negative linear behavior, decreasing 40% between the first and the last stage analyzed, whereas protein levels increased 34.7% during the initial period of germination. Starch content (46.4%) was the highest among those of the metabolites analyzed and starch mobilization occurred inversely to the observed for soluble sugars; α-amylase activity increased until the 15th day, a period before radicle emission and corresponding to the highest starch mobilization. The high percentage of rosewood seed germination may be related to the controlled condition used in the germination chamber as well as to high seed reserve mobilization, in special oil and starch. |
DOI: | 10.1590/S0100-67622008000100003 |
Aparece nas coleções: | Artigos |
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