Mahendra Singh - Academia.edu (original) (raw)
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Papers by Mahendra Singh
Physiologia Plantarum, 1974
Conditions are described for measuring anthranilate synthetase, anthranilate-PRPP-phosphoribosyl ... more Conditions are described for measuring anthranilate synthetase, anthranilate-PRPP-phosphoribosyl transferase, N-5'-phosphoribosyl anthranilate isomerase, indole-3-glycerol phosphate synthetase and tryptophan synthetase in crude extracts from Triticum aestivum (wheat) plants. Only the last enzyme has been measured before in extracts from green plants. The extractable quantities of each enzyme in all plant parts at all stages of growth were sufficient to synthesize the amount of tryptophan present within the same tissue in 48 h. Anthranilate synthetase activity was the lowest of the five enzyme activities and was the only one inhibited by tryptophan in vitro, indicating that this enzyme may be the control point in tryptophan biosynthesis in wheat plants.
Physiologia Plantarum, 1974
Conditions are described for measuring anthranilate synthetase, anthranilate-PRPP-phosphoribosyl ... more Conditions are described for measuring anthranilate synthetase, anthranilate-PRPP-phosphoribosyl transferase, N-5'-phosphoribosyl anthranilate isomerase, indole-3-glycerol phosphate synthetase and tryptophan synthetase in crude extracts from Triticum aestivum (wheat) plants. Only the last enzyme has been measured before in extracts from green plants. The extractable quantities of each enzyme in all plant parts at all stages of growth were sufficient to synthesize the amount of tryptophan present within the same tissue in 48 h. Anthranilate synthetase activity was the lowest of the five enzyme activities and was the only one inhibited by tryptophan in vitro, indicating that this enzyme may be the control point in tryptophan biosynthesis in wheat plants.