Glutamate Synthetase in Developing Cotyledons of Pisum sativum

Beevers, L.; Storey, R.

Plant Physiology 57(6): 862-866

1976


ISSN/ISBN: 0032-0889
PMID: 16659586
DOI: 10.1104/pp.57.6.862
Accession: 005528760

Download citation:  
Text
  |  
BibTeX
  |  
RIS

Article/Abstract emailed within 0-6 h
Payments are secure & encrypted
Powered by Stripe
Powered by PayPal

Abstract
Glutamate synthetase (glutamine:alpha ketoglutarate amino transferase oxidoreductase) activity has been demonstrated in the developing cotyledons of Pisum sativum L. cv. Burpeeana. The enzyme appears to be soluble and is specific for glutamine as amide donor. The enzyme activity is greater with NADH than with NADPH as electron donor.It is suggested that glutamate synthetase in the developing cotyledon provides a mechanism by which the amide nitrogen of glutamine, from the translocatory stream, is converted into the amino nitrogen of glutamate; transamination reactions involving this synthesized glutamate could provide the amino groups for the biosynthesis of the seed protein amino acids.