THE BODY WALL OF HALICRYPTUS-SPINULOSUS (PRIAPULIDA) - ULTRASTRUCTURE AND CHANGES INDUCED BY HYDROGEN-SULFIDE

被引：14

作者：

JANSSEN, HH ^{[1
]}

OESCHGER, R ^{[1
]}

机构：

[1] UNIV BREMEN,FACHBEREICH 2,W-2850 BREMERHAVEN,GERMANY

来源：

HYDROBIOLOGIA | 1992年 / 230卷 / 03期

关键词：

HALICRYPTUS-SPINULOSUS; ULTRASTRUCTURE; BODY WALL; HYDROGEN SULFIDE; MITOCHONDRIA; ECOLOGY;

D O I：

10.1007/BF00036568

中图分类号：

Q17 [水生生物学];

学科分类号：

071004 ;

摘要：

Halicryptus spinulosus (Priapulida) is extraordinarily resistant to hydrogen sulfide. As described previously, the body wall of specimens from oxic and from hydrogen sulfide-contaminated habitats differs strikingly in colour. In the present paper the ultrastructure of the body wall of specimens kept under oxic conditions is described. These findings serve as a reference for changes induced by exposure to hydrogen sulfide. There are marked ultrastructural differences between epidermal and muscular mitochondria exposed to hydrogen sulfide. Epidermal mitochondria of individuals subjected to hydrogen sulfide are often associated with dense granules of unknown composition. Findings are compared with those from other taxa which may encounter hydrogen sulfide in their environment.

引用

页码：219 / 230

页数：12

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