Taraskevich P S
J Gen Physiol. 1975 May;65(5):677-91. doi: 10.1085/jgp.65.5.677.
Iontophoretically applied glutamate produces different excitatory postjunctional permeability changes on separate muscle fibers in a single crayfish muslce. At junctions on some fibers glutamate appears to increase the conductance to both sodium and potassium whereas at others its effect is primarily on the sodium conductance. These results obtained by studying the reversal potential for the extracellularly recorded glutamate potential under conditions of varied extracellular sodium and potassium concentrations.
通过离子电渗法施加的谷氨酸在单个小龙虾肌肉的不同肌纤维上产生不同的兴奋性突触后通透性变化。在某些纤维的连接处,谷氨酸似乎增加了对钠和钾的电导,而在其他连接处,其作用主要是对钠电导。这些结果是通过在细胞外钠和钾浓度变化的条件下研究细胞外记录的谷氨酸电位的反转电位而获得的。