Purple and green(anoxygenic Photptrophic) bacteria Phase contrast micrograph and (b)transmission electron micrograph of the greeen bacterial consortium chlorochromatium aggregatum. In(a) the nonphototrophic central ogani smis much lighter in color than the pigmented phototrophicbacteria Note the chlorosomes(arrows)in(b). The entire consortium is about 3*6um
Purple and Green(Anoxygenic Photptrophic) Bacteria
Purple and green(anoxygenic Phototrophic) Bacteria
Purple and Green(Anoxygenic Photptrophic) Bacteria
Massive accumulation of purple sulfur bacteria. Thiopedia roseopersicinia, in a spring in Madison, Wisconsin. The bacteria grow near the bottom of the spring pool and float to the top (by virtue of their gas vesicles when disturbed. The green color is from cells of the eukaryotic alga Spirogyra
Massive accumulation of purple sulfur bacteria .Thiopedia roseopersicinia,in a spring in Madison,Wisconsin. The bacteria grow near the bottom of the spring pool and float to the top (by virtue of their gas vesicles)when disturbed.The green color is from cells of the eukaryotic alga Spirogyra
Cross section through a bacterial mat in the Sippewisset salt marsh near Woods hole, massachusetts. The layers are as follows: top cyanobacteria; pink, phototrophic purple sulfur bacteria attached to sand grains; black, sulfate-reducing bacteria; peach, pacteriochlorphyll bcontaining cells of Thiocapsa pfennigii
Cross section through a bacterial mat in the Sippewisset salt marsh near Woods Hole, Massachusetts. The layers are as follows: top, cyanobacteria; pink, phototrophic purple sulfur bacteria attached to sand grains; black, sulfate-reducing bacteria; peach, bacteriochlorphyll bcontaining cells of Thiocapsa pfennigii
Morphological diversity among the cyanobacteria: the five major morphological types of cyanobacteria (a)Unicellular, Gloeothece, Phase contrast; a single cell measures 5-6 um in diarneter;(b )colonial, Dermocarpa. Phase contrast (c)filamentous, Oscillatoria, brightfield; a single cell measures about 15 um wide;(d) filamentous heterocystous, Anabaena, phase contrast; a single cell measures about 5 um wide;(e) filamentous
(a)Unicellular, Gloeothece, Phase contrast; a single cell measures 5-6 um in diarneter; (b) colonial, Dermocarpa. Phase contrast; (c)filamentous, Oscillatoria, brightfield; a single cell measures about 15 um wide; (d) filamentous heterocystous, Anabaena, phase contrast; a single cell measures about 5 um wide; (e) filamentous branching. Fischerella, bright-field. Morphological diversity among the cyanobacteria: the five major morphological types of cyanobacteria