Evidence for the Involvement of Phospholipase C in the Anaerobic Signal Transduction | Zendy

Remo Reggiani | Zendy; Paolo Laoreti | Zendy

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Evidence for the Involvement of Phospholipase C in the Anaerobic Signal Transduction

Author(s) -

Remo Reggiani,

Paolo Laoreti

Publication year - 2000

Publication title -

plant and cell physiology

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.975

H-Index - 152

eISSN - 1471-9053

pISSN - 0032-0781

DOI - 10.1093/pcp/pcd073

Subject(s) - phospholipase c , anaerobic exercise , neomycin , chemistry , signal transduction , phospholipase , phosphoinositide phospholipase c , inositol , activator (genetics) , egta , stimulation , biochemistry , biology , enzyme , calcium , receptor , endocrinology , physiology , organic chemistry , antibiotics

Pre-treatment of rice 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 roots 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 with the participation of PLC in the anaerobic response.

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