When examined using some inhibitors with respect to orll receptor , the nociceptin - induced current was depressed in amplitude by nocistatin ( a putative nociceptive precursor product ) and also by compb ( a non - peptidyl orll receptor antagonist ) to a different extent without a change in holding currents of sg neurons Noosoo h口对传向脊髓背角sg神经元的兴奋性和抑制性突触传递的影响在i己录电极内液中加入gdp书s 、艳离子和tea （主要用于阻断突触后的g蛋白和钾通道的作用）的状况下， nociceptin诱致的外向电流可以完全被阻断。
Our previous work verified that heterotrimeric g protein was involved in regulation of pollen germination , tube growth and in the transmembrane mechanism of extracellular cam signal . in the present study , we provide further evidence that plc signaling pathway was presented in lily pollen and involved in extracellular cam signal transduction mechanism in pollen by molecular , biochemical and physiological approaches . these evidence included : the pip _ ( 2 ) - dependent plc activity was also detected in purified lily pollen protoplasts 为了给上述信号转导过程提供进一步的证据，本文以百合花粉为材料，从plc活性的测定、 plc基因的克隆及其与花粉萌发的关系、以及plc活性被g蛋白和cam调控等方面，为肌醇磷脂系统参与花粉萌发和细胞外钙调素的信号转导过程进一步提供了分子生物学和生物化学的证据。
