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Ferredoxins are iron–sulfur proteins involved in various one-electron transfer pathways. Ferredoxin levels decrease under adverse environmental conditions in photosynthetic organisms. In cyanobacteria, this decline is compensated by induction of flavodoxin, an isofunctional flavoprotein. Flavodoxin is not present in higher plants, but transgenic Nicotiana tabacum lines accumulating Anabaena flavodoxin...
Ferredoxins are the main electron shuttles in chloroplasts, accepting electrons from photosystem I and delivering them to essential oxido‐reductive pathways in the stroma. Ferredoxin levels decrease under adverse environmental conditions in both plants and photosynthetic micro‐organisms. In cyanobacteria and some algae, this decrease is compensated for by induction of flavodoxin, an isofunctional...
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