Abstract
Influence of hydrogen sulfide on Chlorobium limicola IМВ К-8 photosynthetic pigments composition and cells ultrastructure is studied. H2 S at concentrations 5–7 mM causes the decrease of pigments extracts optical density and absorption maximum at 421 nm transition to lower wavelength (406–408 nm). The results of pigments quantitative analysis after their separation by thin-layer chromatography have shown that at concentration 5 mM hydrogen sulfide causes 2.3 times decrease of bacteriochlorophylls content in bacterial cells, compared to control. The decrease of carotenoids content at this compound concentrations 5–6 mM is observed. At concentration 7 mM H2 S causes the disconnection of chlorosomes from cytoplasm membrane and the decrease of their quantity. Probably, chlorosomes degrade after the disconnection from membrane.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.