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The Light-Dependent and Light-Independent Reduction of Protochlorophyllide a to Chlorophyllide a

1999; Institute of Experimental Botany of the Czech Academy of Sciences; Volume: 36; Issue: 4 Linguagem: Inglês

10.1023/a

1573-9058

Benoı̂t Schoefs,

Algal biology and biofuel production

Two different pathways for protochlorophyllide a (Pchlide) reduction in photosynthetic organisms have been proved: one is strictly light-dependent whereas the second is light-independent. Both pathways occur in all photosynthetic cells except in angiosperms which form chlorophyll only through the light-dependent pathway. Most cells belonging to Eubacteria (i.e., the anoxygenic photosynthetic bacteria) synthesize bacteriochlorophyll through the light-independent pathway. This review deals with the physiological, biochemical, and molecular biological features of molecules involved in both pathways of Pchlide reduction.