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Nitrogen metabolism of Picea glauca. II. Diurnal changes of free amino acids, amides, and guanidino compounds in roots, buds and leaves during onset of dormancy of White Spruce saplings



Nitrogen metabolism of Picea glauca. II. Diurnal changes of free amino acids, amides, and guanidino compounds in roots, buds and leaves during onset of dormancy of White Spruce saplings



Canad. J. Bot 46(7): 921-8



In late August, during the onset of dormancy in Spruce, seasonal values for soluble N rich in arginine were high. On a fresh-weight basis, diurnal values for total soluble N and most component amino acids in roots, buds and leaves showed a maximum at sunrise and another in the afternoon or near sunset. Arginine and glutamine in the different plant parts contributed 44-83% to the alcohol-soluble N.

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Nitrogen metabolism of Picea glauca II Diurnal changes of free amino acids, amides, and guanidino compounds in roots, buds, and leaves during the onset of dormancy of white spruce saplings. Canadian Journal of Botany 46(7): 921-928, 1968

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