Presentation on theme: "Copyright Notice! This PowerPoint slide set is copyrighted by Ross Koning and is thereby preserved for all to use from plantphys.info for as long as that."— Presentation transcript:
1Copyright Notice!This PowerPoint slide set is copyrighted by Ross Koning and is thereby preserved for all to use from plantphys.info for as long as that website is available. Images lacking photo credits are mine and, as long as you are engaged in non-profit educational missions, you have my permission to use my images and slides in your teaching. However, please notice that some of the images in these slides have an associated URL photo credit to provide you with the location of their original source within internet cyberspace. Those images may have separate copyright protection. If you are seeking permission for use of those images, you need to consult the original sources for such permission; they are NOT mine to give you permission.
3Cyanobacteria carry out photosynthesis with chlorophyll bound to proteins in membranes infolding from the cell membrane.PhotosyntheticMembranes(thylakoids)Figure 7-5 Page 122This is an artificially-colored micrograph from transmission electron microscopy (TEM)
5An artificially colored TEM of a cyanobacterium. Thylakoids contain chlorophyll a (green)Metabolism?Association?Shape?
6In a light microscope image: In dyed TEM image:Thylakoids were dyed green to show the location of bacteriochlorophyll for the light reactions…In a light microscope image:Thylakoids are too fine to be visible, so the green color appears throughout cytosol but with the nucleoid region lighter in color. The DNA displaces some of the naturally dark-green thylakoids.nucleoid