Immunocharacterization of NADH-Glutamate Dehydrogenase from Vitis vinifera L
Open Access
- 1 September 1990
- journal article
- research article
- Published by Oxford University Press (OUP) in Plant Physiology
- Vol. 94 (1), 109-113
- https://doi.org/10.1104/pp.94.1.109
Abstract
Rabbit antiserum was raised against NADH-glutamate dehydrogenase (GDH) isoenzyme 1, purified from leaves of Vitis vinifera L. cv Soultanina and its specificity was tested. This antiserum was used for immunocharacterization of the GDH from leaf, shoot, and root tissues. The antiserum recognized the seven isoenzymes of NADH-GDH and precipitated all the enzyme activity from the three tissues tested. Western blot following SDS-PAGE revealed the same protein band for the three tissues, with a molecular mass of 42.5 kilodaltons corresponding to NADH-GDH subunit. Results, based on the immunological studies, revealed that NADH-GDH from leaf, shoot, and root tissues are closely related proteins. Furthermore, addition of ammonium ions to the culture medium of in vitro grown explants resulted in a significant increase in NADH-GDH activity in root, shoot, and leaf tissues.This publication has 12 references indexed in Scilit:
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