Light-Induced Length Shrinkage of Rod Photoreceptor Outer Segments.

ABSTRACT:

Purpose

This study was designed to verify light-induced outer segment (OS) length shrinkage of rod photoreceptors and to characterize its anatomic source at disc-level resolution.

Methods

Frog (Rana pipiens) retinas were used for this study. Time-lapse light microscopy of freshly isolated OSs was employed to test transient rod OS changes at 10 ms temporal resolution. Histological light microscopy of dark- and light-adapted retinas was used to confirm light-induced rod OS length changes; and transmission electron microscopy (TEM) was used to quantify light-driven structural perturbation of rod OSs at disc level resolution.

Results

Time-lapse light microscopy images verified transient length shrinking responses in freshly isolated rod OSs. Histological light micr

SUBMITTER: Lu Y 

PROVIDER: S-EPMC6314056 | biostudies-literature | 2018 Nov

REPOSITORIES: biostudies-literature