Increase in enzyme activities in embryonic axes of soybean seeds during germination

Shin Ichi Okuda, Jun Kaneko, Toshiya Ogawa, Takuya Yamaguchi, Kazuo Izaki, Hajime Takahashi

研究成果: Article査読

10 被引用数 (Scopus)

抄録

The changes in enzyme activities in embryonic axes of soybean seeds during germination were investigated. After 48 hr of germination, the activities of 6-phosphogluconate, glucose-6-phosphate, and L-isocitrate dehydrogenases were 2-4 times as high those of embryonic axes from dry seeds. The activities of L-glutamate and meso-D-diaminopimelate dehydrogenases and of L-isocitritase, however, were still low. The activities of L-malate dehydrogenase and acid phosphatase increased strikingly after germination, and the activities of the germinated axes were about 80 (at 48 hr) and 27 (at 40 hr) times, respectively, those of embryonic axes from dry seeds. The elevated activity of acid phosphatase was due to de novo synthesis of enzyme protein in the embryonic axes, not to activation of the enzyme protein, or to transfer of the enzyme protein from germinating cotyledons. Acid phosphatase activity in embryonic axes increased in a very early stage of protein synthesis in the axes. The pronounced increase in L-malate dehydrogenase activity was mainly due to activation of the enzyme protein by imbibition, not to de novo synthesis of enzyme protein, or to transfer of the enzyme protein from germinating cotyledons.

本文言語English
ページ(範囲)109-113
ページ数5
ジャーナルAgricultural and Biological Chemistry
51
1
DOI
出版ステータスPublished - 1987 1

ASJC Scopus subject areas

  • 生化学、遺伝学、分子生物学(全般)
  • 農業および生物科学(全般)

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