Shen, Kang

<p>Apr 03, 2014 02:05 PM</p>

<p>

chat today at Tim Ryan's talk.</p>

<p>

studies C elegans in his lab;

assembly and maintenance of synapses in C elegans.</p>

<p>

axons do not spike but &nbsp;(in response to my question) there are voltage changes and

voltage-gated calcium channels. Those channels and mechs have been conserved thruout phylogeny.

Calcium influx is always involved in endo/exocytosis of vesicles at synapses.</p>

<p>

(Tim Ryan has just shown us &nbsp;v high tempor resolution

archearhodopsin photofluors that track voltage changes with

msec resol but v faint light... &nbsp;Kang Shen " hard to immobilize worms to use

a tool like that")</p>