Linked from
The 39 pages that link to Cyanobacteria, each with the reason it gives.
OxygenRelated: Ancient cyanobacteria helped establish oxygen-producing photosynthesis.
LichenRelated: Some lichens use cyanobacteria as photobionts, gaining access to fixed nitrogen.
EndosymbiosisRelated: Their photosynthetic machinery links plastids to a bacterial endosymbiont.
Plant cellRelated: Chloroplasts evolved from a cyanobacterial ancestor through endosymbiosis.
Chlorophyll aRelated: Cyanobacteria use chlorophyll a in the photosystems that release oxygen.
IsidiumRelated: Some isidia carry cyanobacterial photobionts instead of, or alongside, green algae.
SorediumRelated: Some lichens incorporate cyanobacteria, which can be carried in soredia.
SymbiogenesisRelated: Cyanobacteria are the ancestors of primary plastids, including chloroplasts.
Plastid DNARelated: Plastids descend from an ancient cyanobacterial lineage.