A photosystem other than PS370 also mediates the negative phototaxis of Halobacterium halobium |
| |
Authors: | Tetsuo Takahashi Hiroaki Tomioka Naoki Kamo Yonosuke Kobatake |
| |
Affiliation: | Faculty of Pharmaceutical Sciences, Hokkaido University, Sapporo 060, Japan |
| |
Abstract: | Abstract It was found that a photorepellent system other than photosystem 370 (PS370) also controls the behavior of Halobacterium halobium . Both the dependence of background illumination and wavelength where the response showed maximum action distinguished that photosystem from PS370 whose photoreceptor pigment is thought to be an intermediate of s-rhodopsin (sR). A mutant strain that has no detectable activity in PS370 and in photoattractant response was isolated. This mutant strain showed the repellent response due to the new photosystem. |
| |
Keywords: | Retinal s-rhodopsin archaebacteria taxis |
本文献已被 ScienceDirect 等数据库收录! |