Effects of proline and betaine on heat inactivation of ribulose-1,5-bisphosphate carboxylase/oxygenase in crude extracts of rice seedlings
Abstract
Activity of ribulose-1,5-bisphosphate carboxylase/oxygenase (RuBPCO) in heated crude extracts from seedlings of the rice cultivars Hitomebore and IR28 was investigated in the presence of proline and betaine. Both solutes retarded the inactivation of the enzyme extracted from the leaves of both cultivars at temperature-stress from 35 to 45 °C. At 50 °C, however, betaine was effective in both cultivars. Stabilization of RuBPCO activity was independent of the added solute from 1 to 2 M concentration.
Source or Periodical Title
Photosynthetica
ISSN
3003604
Page
557-563
Document Type
Article
Subject
Cultivar differences, Oryza sativa L.
Recommended Citation
Dionisio-Sese, M. L.; Shono, M.; and Tobita, S., "Effects of proline and betaine on heat inactivation of ribulose-1,5-bisphosphate carboxylase/oxygenase in crude extracts of rice seedlings" (2021). Journal Article. 3364.
https://www.ukdr.uplb.edu.ph/journal-articles/3364