BEHAVIORAL AND HISTOCHEMICAL-CHANGES INDUCED BY OSMOTIC-STRESS IN POECILIA-RETICULATA PETERS (PISCES, CYPRINODONTIDAE)

被引:3
作者
GARGIULO, G [1 ]
ANDREOZZI, G [1 ]
ANTONUCCI, R [1 ]
ARCAMONE, N [1 ]
DEGIROLAMO, P [1 ]
BATTAGLINI, P [1 ]
机构
[1] UNIV NAPOLI FEDERICO II,DIPARTIMENTO ZOOL,I-80134 NAPLES,ITALY
来源
COMPARATIVE BIOCHEMISTRY AND PHYSIOLOGY A-PHYSIOLOGY | 1992年 / 101卷 / 01期
关键词
D O I
10.1016/0300-9629(92)90624-Y
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. Behavioural activities and histochemical changes of mucopolysaccharides, ATPase and respiratory enzymes in the gill epithelium of freshwater fish Poecilia reticulata Peters were examined at different times after 100% sea-water exposure. 2. Acute stress was observed in the first 6 hr, with behavioural and histochemical changes. 3. Up to 6 hr reduction in reaction activities of succinc-dehydrogenase, cytochrome-oxidase, ATPase and mucopolysaccharides was observed. 4. After the first 6 hr a strong increase in ATPase and respiratory enzymes levels was observed until they reached levels similar to the controls at 7 days. Mucopolysaccharide reactions were gradually reduced and disappeared completely at 7 days. 5. Behavioural adaptations changed in the same time and behavioural activity appeared normal at 24 hr. 6. A correlation between the adaptive flexibility of P. reticulata and morphological and physiological characters is hypothesized.
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页码:33 / 42
页数:10
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