THE CONTRIBUTIONS OF ADENOSINE 5'-DIPHOSPHOGLUCOSE PYROPHOSPHORYLASE AND STARCH-BRANCHING ENZYME TO THE CONTROL OF STARCH SYNTHESIS IN DEVELOPING PEA EMBRYOS

被引：6

作者：

DENYER, K

FOSTER, J

SMITH, AM

机构：

来源：

PLANTA | 1995年 / 197卷 / 01期

关键词：

ADP-GLUCOSE PYROPHOSPHORYLASE; FLUX CONTROL ANALYSIS (STARCH SYNTHESIS); PISUM (DEVELOPING EMBRYO); PLASTID (PEA EMBRYO); STARCH-BRANCHING ENZYME; STARCH SYNTHESIS (PLANT EMBRYO);

D O I：

暂无

中图分类号：

Q94 [植物学];

学科分类号：

071001 ;

摘要：

The contributions of ADP-glucose pyrophosphorylase (EC 2.7.7.27) and starch-branching enzyme (EC 2.4.1.18) to the control of the rate of starch synthesis in developing pea (Pisum sativum L.) embryos was investigated. Estimates were made of the deviation indices for changes in the activities of these enzymes at a point approximately halfway through embryo development, when starch was accumulating rapidly. The values for the deviation indices, and thus the flux control coefficients, were 0.1 for ADP-glucose pyrophosphorylase and 0.05 for starch-branching enzyme. Both values are low, suggesting that neither enzyme is of overriding importance in the control of starch synthesis in pea embryos.

引用

页码：57 / 62

页数：6

共 23 条

[1]

Ap Rees T., 1994, Plant Cell and Environment, V17, P587, DOI 10.1111/j.1365-3040.1994.tb00151.x

[2] THE WRINKLED-SEED CHARACTER OF PEA DESCRIBED BY MENDEL IS CAUSED BY A TRANSPOSON-LIKE INSERTION IN A GENE ENCODING STARCH-BRANCHING ENZYME [J].