Dynamic Changes of Two Kinds of Enzymes and Soluble Protein of Eucalyptus Leaves in Different Seasons and Years

doi:10.14088/j.cnki.issn0439-8114.2018.10.017

Abstract

Abstract: Eucalyptus is an important economic tree species in southern China. Research on storage metabolism of eucalyptus would increase its nitrogen utilization level, which had certain research significance. Taking the branch and leaf tissue of eucalyptus as research object, the dynamic change of protein content as well as the activity of glutamate synthetase and glutamine synthetase was observed using UV spectrophotometric method based on the phonological phase. The results showed that, in the beginning of autumn, soluble protein content of eucalyptus leaves was at the lowest level; But in the following spring it was the highest. The soluble protein content in summer was between spring and the autumn. Glutamate synthese activity was the highest in autumn and the lowest in spring. The glutamine synthetase activity was the highest in autumn while lowest in spring. The glutamate synthetase activity, soluble protein content, glutamine synthetase activity was closely related to the season and year, the three of which present different changing trends.

Key words: eucalyptus, soluble protein, glutamate synthetase, glutamine synthetase

CLC Number:

S792.39

ZHU Yu-lin, ZHOU Xing-wen, HUANG Li-ling, SU Jian-mu, ZHAO Ying. Dynamic Changes of Two Kinds of Enzymes and Soluble Protein of Eucalyptus Leaves in Different Seasons and Years[J]. HUBEI AGRICULTURAL SCIENCES, 2018, 57(10): 73-76.

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