THERMAL SENSITIVITY AND EFFECT OF TEMPERATURE-ACCLIMATION ON OCULAR SEROTONIN NORMAL-ACETYLTRANSFERASE ACTIVITY IN RANA-PEREZI

被引：9

作者：

ALONSOGOMEZ, AL ^{[1
]}

ALONSOBEDATE, M ^{[1
]}

DELGADO, MJ ^{[1
]}

机构：

[1] UNIV COMPLUTENSE MADRID,FAC BIOL,DEPT BIOL ANIMAL FISIOL ANIM,E-28040 MADRID,SPAIN

来源：

NEUROSCIENCE LETTERS | 1992年 / 142卷 / 02期

关键词：

SEROTONIN NORMAL-ACETYLTRANSFERASE; THERMAL SENSITIVITY; LATERAL EYE; RANA;

D O I：

10.1016/0304-3940(92)90370-M

中图分类号：

Q189 [神经科学];

学科分类号：

071006 ;

摘要：

The thermal sensitivity and the response to thermal acclimation of the serotonin N-acetyltransferase (NAT) activity in frog ocular tissue were studied. The ocular NAT shows a positive thermal modulation for both cosubstrates (tryptamine and acetyl-CoA). The higher NAT activity in the cold-acclimated group (4-degrees-C) with respect to the warm-acclimated one (24-degrees-C) implies a partial thermal compensation of the enzyme. The present results suggest that frog ocular NAT response to temperature entails a modulation of thermal sensitivity of the enzyme rather than changes in enzyme concentration.

引用

页码：187 / 190

页数：4

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