Activation of glyoxylate cycle enzymes in cucumber fruits exposed to CO2

被引：12

作者：

Yang, YL ^{[1
]}

Murayama, H ^{[1
]}

Fukushima, T ^{[1
]}

机构：

[1] Yamagata Univ, Fac Agr, Tsuruoka, Yamagata 997, Japan

来源：

PLANT AND CELL PHYSIOLOGY | 1998年 / 39卷 / 05期

关键词：

CO2; controlled atmosphere; cucumber; isocitrate lyase (EC 4.1.3.1); malate synthase (EC 4.1.3.2); glyoxylate cycle;

D O I：

10.1093/oxfordjournals.pcp.a029401

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

Cucumber fruits exposed to a 60% CO2 environment for 3 d at 20 degrees C showed a higher respiration rate, a lower respiratory quotient, and lower levels of malate, citrate+ isocitrate, and glyoxylate than did control fruits. Moreover, in the CO2 treatment, fumarate and succinate increased dramatically on the first day and after the second day, respectively, while 2-oxoglutarate showed a temporary increase on the first day and a subsequent decrease. Isocitrate lyase and malate synthase activity tended to increase throughout the experimental period of the CO2 treatment. These results appear to point to a rapid operation of glyoxylate cycle due to high CO2.

引用

页码：533 / 539

页数：7

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