protochlorophyllide การใช้

Protochlorophyllide is a strong photosensitizer in plants.
Plants use four kinds of photoreceptors : Protochlorophyllide " a ", as its name suggests, is a chemical precursor of chlorophyll.
ArsA proteins are homologous to nitrogenase iron ( NifH ) proteins 2 of bacteria and to protochlorophyllide reductase iron sulfur ATP-binding proteins of cyanobacteria, algae and plants.
Plants that are fed by external ?-ALA accumulate toxic amounts of chlorophyll precursor, protochlorophyllide, indicating that the synthesis of this intermediate is not suppressed anywhere downwards in the chain of reaction.
"Arabidopsis " " FLU " mutant with damaged regulation can survive only either in a continuous darkness ( protochlorophyllide is not dangerous in the darkness ) or under continuous light, when the plant is capable to convert all produced protochlorophyllide into chlorophyll and do not overaccumulate it despite of the lack of regulation.