A COMPARATIVE STUDY OF AMYLASES AND PROTEINASES IN SOME DECAPOD CRUSTACEA

被引：36

作者：

SATHER, BT

机构：

[1] Department of Zoology and Physiology, Rutgers-The State University of New Jersey, Newark, NJ

来源：

COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY | 1969年 / 28卷 / 01期

关键词：

D O I：

10.1016/0010-406X(69)91350-4

中图分类号：

Q5 [生物化学]; Q7 [分子生物学];

学科分类号：

071010 ; 081704 ;

摘要：

1. 1. Amylase, protease and cathepsin activities in midgut gland extracts of six decapod crustaceans were determined. 2. 2. The amylase pH optimum of the crab, Metapograpsus messor, was 8·0. 3. 3. The protease and cathepsin pH optima of the portunid crab, Podophthalmus vigil, were 7·9 and 6·0, respectively. 4. 4. Comparison of the digestive enzymatic activities revealed that the three omnivores had greater amylase and proteinase activities than did the carnivores. 5. 5. Food preference in two sympatric species, P. vigil and Portunus sanguinolentus, may be due to differences in catheptic activities. © 1969.

引用

页码：371 / &

共 20 条

[1] STUDIES ON PHYSIOLOGY OF DIGESTION IN COROPHIUM VOLUTATOR [J].