Contact: Robert Sanders
University of California - Berkeley
Caption: These are chloroplasts visible in the cells of Plagiomnium affine, the many-fruited thyme moss. Photosynthesizing cyanobacteria invaded the earliest one-celled plants about 900 million years ago, conferring on plants the ability to convert sunlight into energy and setting the stage for the diversification of plants.
Credit: By Kristian Peters through Wikipedia
Usage Restrictions: Please credit to Wikipedia, http://en.wikipedia.org/wiki/File:Plagiomnium_affine_laminazellen.jpeg.
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