Biotechnology of anoxygenic phototrophic bacteria

12 Citationer (Scopus)

Abstract

Anoxygenic phototrophic bacteria are a diverse collection of organisms that are defined by their ability to grow using energy from light without evolving oxygen. The dominant groups are purple sulfur bacteria, purple nonsulfur bacteria, green sulfur bacteria, and green and red filamentous anoxygenic phototrophic bacteria. They represent several bacterial phyla but they all have bacteriochlorophylls and carotenoids and photochemical reaction centers which generate ATP and cellular reductants used for CO2 fixation. They typically have an anaerobic lifestyle in the light, although some grow aerobically in the dark. Some of them oxidize inorganic sulfur compounds for light-dependent CO2 fixation; this ability can be exploited for photobiological removal of hydrogen sulfide from wastewater and biogas. The anoxygenic phototrophic bacteria also perform bioremediation of recalcitrant dyes, pesticides, and heavy metals under anaerobic conditions. Finally, these organisms may be useful for overexpression of membrane proteins and photobiological production of H2 and other valuable compounds.

OriginalsprogEngelsk
TitelAnaerobes in biotechnology
RedaktørerRajni Hatti-Kaul, Gashaw Mamo, Bo Mattiasson
Antal sider16
ForlagSpringer
Publikationsdato1 mar. 2016
Sider139-154
ISBN (Trykt)978-3-319-45649-2
ISBN (Elektronisk)978-3-319-45651-5
DOI
StatusUdgivet - 1 mar. 2016
NavnAdvances in Biochemical Engineering. Biotechnology
Vol/bind156
ISSN0724-6145

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