Compared with the prot(,n pumping, this nonproton ion translocation is also light-driven and increases with the ionic strength of the medium, but it develops a faster and negative photopotential.

• 与紫膜的质子跨膜迁移相比,这种非质子离子迁移也是由光驱动的,随介质的离子强度的增强而显著增强,但它的迁移速率更快,且产生反向的光电位。