Sex-linked differences in phenol oxidase in the fairy shrimp Streptocephalus dichotomus Baird and their possible role (Crustacea: Anostraca)

被引：27

作者：

Radhika, M

Nazar, AKA

Munuswamy, N

Nellaiappan, K

机构：

[1] Univ Madras, Dept Zool, Unit Live Feed Culture, Madras 600025, Tamil Nadu, India

[2] Boston Univ, Sch Med, Dept Biochem, Boston, MA 02118 USA

来源：

HYDROBIOLOGIA | 1998年 / 377卷 / 1-3期

关键词：

phenol oxidase; fairy shrimps; longevity;

D O I：

10.1023/A:1003244318887

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

phenol oxidase activity in the hemolymph of male Streptocephalus dichotomus is only 1/3rd of that of females. About 70% of this activity resides in cell lysate and 30% in plasma. Electrophoretic analysis revealed that male plasma has a single fraction of tyrosine hydroxylase, evidenced by positivity towards tyrosine methylester-PMS-NBT. Female hemolymph has as many as three isozymes showing diphenoloxidase activity. The significance of these results is discussed with reference to sex-linked enzyme activity and its possible role in longevity.

引用

页码：161 / 164

页数：4

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[1] BIOCHEMISTRY OF INSECT CUTICLE [J].