Nitrogen redistribution during grain growth in wheat (Triticum aestivum L.) |
| |
Authors: | Stephen P Waters Mark B Peoples Richard J Simpson Michael J Dalling |
| |
Institution: | (1) School of Agriculture and Forestry, University of Melbourne, 3052 Parkville, Vic., Australia |
| |
Abstract: | The activity of a range of endo- and exopeptidase enzymes have been measured in the glumes, flag leaf and stem during the period of grain development in wheat. The enzymes show a sequential pattern of appearance with activity peaks occurring at a number of intervals from anthesis until just prior to the cessation of grain growth. Of the enzymes studied only the haemoglobin- and casein-degrading activity and alanylglycine-dipeptidase activity increased during the period of rapid protein loss, while aminopeptidase, carboxypeptidase and leucyltyrosine dipeptidase reached maximum activity prior to this period. |
| |
Keywords: | Endo- and exopeptidases Nitrogen redistribution Peptidases Protein breakdown Senescence (organs) Triticum |
本文献已被 SpringerLink 等数据库收录! |