Page 47 - Algae
P. 47

30                                    Algae: Anatomy, Biochemistry, and Biotechnology






























                  FIGURE 1.45 Filament of Klebsormidium sp.  FIGURE 1.46 Thallus of Nitella sp.



                  Endosymbiotic process produced nested cellular compartments one inside the other, which can give
                  information about the evolutionary history of the algae containing them.
                     Cyanobacteria evolved more than 2.8 billion years ago and have played fundamental roles in
                  driving much of the ocean carbon, oxygen, and nitrogen fluxes from that time to present. The evol-
                  ution of cyanobacteria was a major turning point in biogeochemistry of Earth. Prior to the

































                  FIGURE 1.47 Portion of the thallus of Acetabularia sp.
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