Author Contributions
Conceived (CB, ST); planned research (all); cloning for oocyte experiments (JQ); preparation of materials for oocyte experiments (JQ/SM); TEVC (JQ/SM); swelling (SM); oocyte ion content (SM); preparation of yeast materials and cloning (JQ/SM/MG); yeast ion content (JQ); yeast localisation (MG); analysis (all); creation of manuscript draft (SM/JQ/MG); plotting figures and tables for paper (JQ/SM/MG); manuscript revision and editing (all).