Evidence for the involvement of phospholipase C in the anaerobic signal transduction

被引：28
|
作者：
Reggiani, R [1 ]
Laoreti, P [1 ]
机构：
[1] CNR, Ist Biosintesi Vegetali, I-20133 Milan, Italy
来源：
PLANT AND CELL PHYSIOLOGY | 2000年 / 41卷 / 12期
关键词：
gamma-aminobutyric acid; anoxia; inositol 1,4,5-triphosphate; Oryza sativa; phospholipase C; signal transduction;
D O I：
10.1093/pcp/pcd073
中图分类号：
Q94 [植物学];
学科分类号：
071001 ;
摘要：
Pre-treatment of rife roots for 2 h in aerobic conditions with two phospholipase C (PLC) antagonists, neomycin and compound 48/80 (C48/80), inhibited accumulation of gamma -aminobutyric acid and increased the loss of K+ in the medium during 3 h of anoxia. The presence of Ca2+ and A23187 (Ca2+ ionophore) nullified the effect of PLC inhibitors. Pre-treatment of rice roofs with neomycin and C48/80 abolished the anaerobic increase in the concentration of the PLC product inositol 1,4,5-triphosphate. Stimulation of the anaerobic signal transduction pathway with aluminium fluoride (G protein activator) was attenuated by PLC inhibitors. These findings are consistent nifh the participation of PLC in the anaerobic response.
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页码：1392 / 1396
页数：5
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