摘要: Publisher Summary This chapter discusses the analysis of bacteriochlorophylls. The characteristic that all phototrophic bacteria have in common is ability to perform an anoxygenic type photosynthesis. mode energy metabolism generally expressed light only under anaerobic growth conditions or largely decreased oxygen tension. results from fact formation central pigment photosynthetic apparatus, bacteriochlorophyll (Bchl), controlled inverse proportion by where enhances inhibitory effect oxygen. sensitivity Bchl synthesis toward oxygen, however, may vary among different species. applies primarily those members group are able grow either phototrophically chemotrophically presence role control demonstrated with facultative phototrophs regulates cellular levels even darkness.