Effect of Glucose on the Induction of Nitrate Reductase in Corn Roots 1
AUTOR(ES)
Aslam, Muhammad
RESUMO
In Zea mays L., addition of glucose to the induction medium has no effect on the induction of nitrate reductase during the initial 3 hours either in root tips (0-10 mm) or mature root sections (25-35 mm). With longer times, higher levels of enzyme activity are recovered from both root segments when glucose is present in the incubation medium. The induction in root tips is saturated by 10 mm NO3−. Higher concentrations of NO3− are required for saturation in mature root sections. The response to glucose is seen over a wide range of external NO3− concentrations.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=541887Documentos Relacionados
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