THE PLASMA-MEMBRANE CA-2+-PUMP OF PLANT-CELLS - A RADIATION INACTIVATION STUDY

被引：11
作者：
RASICALDOGNO, F
PUGLIARELLO, MC
OLIVARI, C
DEMICHELIS, MI
GAMBARINI, G
COLOMBO, P
TOSI, G
机构：
[1] UNIV TURIN,IST CHIM AGRARIA,I-10124 TURIN,ITALY
[2] POLITECN MILAN,IST FIS,I-20133 MILAN,ITALY
[3] OSPED NIGUARDA CA GRANDA,SERV FIS SANIT,MILAN,ITALY
[4] NATL INST NUCL PHYS,MILAN,ITALY
来源：
BOTANICA ACTA | 1990年 / 103卷 / 01期
关键词：
Plasma membrane Ca[!sup]2+[!/sup]‐pump; radiation inactivation; Raphanus sativus;
D O I：
10.1111/j.1438-8677.1990.tb00123.x
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
The functional molecular weight of the plasma membrane Ca2+‐ATPase of radish (Raphanus sativus L.) seeds was determined by measuring the Ca2+‐dependent ATPase activity and the MgATP‐dependent Ca2+ transport activity of membrane samples irradiated, in the lyophilized state, with γ rays from [60Co] source. The results gave a target size of about 270,000 dalton for both the measured activities, thus confirming (i) that both activities are catalyzed by the same enzyme and (ii) the similarity between the plasma membrane Ca2+‐ATPase of higher plants and that of the erythrocytes. 1990 Deutsche Botanische Gesellschaft/German Botanical Society
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页码：39 / 41
页数：3
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