Effect of Light and Glucose on the Induction of Nitrate Reductase and on the Distribution of Nitrate in Etiolated Barley Leaves 1
AUTOR(ES)
Aslam, Muhammad
RESUMO
Barley seedlings grown in the dark with 10 mm KNO3 have low levels of nitrate reductase activity even though large amounts of No3− accumulate in the leaves. When the leaves are excised and transferred to the light, there is an increase in nitrate reductase activity both in the presence and absence of exogenous NO3−. When the leaves are transferred to a glucose solution (0.05 m) but kept in the dark, induction of nitrate reductase activity occurs only when fresh NO3− is added to the system.
ACESSO AO ARTIGO
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=543287Documentos Relacionados
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