The response of sulfur dioxygenase to sulfide in the body wall of Urechis unincinctus.

ABSTRACT:

Background

In some sedimentary environments, such as coastal intertidal and subtidal mudflats, sulfide levels can reach millimolar concentrations (2-5 mM) and can be toxic to marine species. Interestingly, some organisms have evolved biochemical strategies to overcome and tolerate high sulfide conditions, such as the echiuran worm, Urechis unicinctus. Mitochondrial sulfide oxidation is important for detoxification, in which sulfur dioxygenase (SDO) plays an indispensable role. Meanwhile, the body wall of the surface of the worm is in direct contact with sulfide. In our study, we chose the body wall to explore the SDO response to sulfide.

Methods

Two sulfide treatment groups (50 µM and 150 µM) and a control group (natural seawater) were used. The worms, U. unicinctu

SUBMITTER: Zhang L 

PROVIDER: S-EPMC6388664 | biostudies-literature | 2019

REPOSITORIES: biostudies-literature