Bacteriochlorophylls

green pigments produced by photosynthetic purple and green bacteria. They are localized in the chromatophores of the bacterial cell. Most of the purple bacteria contain bacteriochlorophyll a (bacterio-chlorin), which is similar to chlorophyll a of green plants. Certain purple bacteria contain bacteriochlorophyll b. Green bacteria contain bacteriochlorophyll c or bacteriochlorophyll d (bacterioviridins), which differ significantly in structure from other chlorophylls. Every bacteriochlorophyll has its characteristic absorption spectrum. For example, bacteriochlorophyll a has its main absorption maximum at a wave length of 780 nanometers (nm); bacteriochlorophyll b, at 799 nm; bacteriochlorophyll c, at 660 nm; and bacteriochlorophyll d, at 650 nm.

REFERENCES

Kondrat’eva, E. M. Fotosinteziruiushchie bakterii. Moscow, 1963.
Uspenskaia, V. E. “Biosintez bakterial’nykh khlorofillov.” In Uspekhi mikrobiologii, vol. 3. Moscow, 1966.

V. M. GORLENKO

单词	bacteriochlorophylls
释义	DictionarySeebacteriochlorophyll Bacteriochlorophylls Bacteriochlorophylls green pigments produced by photosynthetic purple and green bacteria. They are localized in the chromatophores of the bacterial cell. Most of the purple bacteria contain bacteriochlorophyll a (bacterio-chlorin), which is similar to chlorophyll a of green plants. Certain purple bacteria contain bacteriochlorophyll b. Green bacteria contain bacteriochlorophyll c or bacteriochlorophyll d (bacterioviridins), which differ significantly in structure from other chlorophylls. Every bacteriochlorophyll has its characteristic absorption spectrum. For example, bacteriochlorophyll a has its main absorption maximum at a wave length of 780 nanometers (nm); bacteriochlorophyll b, at 799 nm; bacteriochlorophyll c, at 660 nm; and bacteriochlorophyll d, at 650 nm. REFERENCES Kondrat’eva, E. M. Fotosinteziruiushchie bakterii. Moscow, 1963. Uspenskaia, V. E. “Biosintez bakterial’nykh khlorofillov.” In Uspekhi mikrobiologii, vol. 3. Moscow, 1966. V. M. GORLENKO
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