Dr. Grossman's lab's activities over the last five years have been extremely diverse, crossing over various disciplines. They have explored areas ranging from identifying new functions associated with photosynthetic processes, the mechanism(s) of coral bleaching and the impact of temperature and light on the bleaching process, metagenomic and genomic diversity among primary producers in hot spring mats, metabolic switching in mat communities (going from oxic to anoxic conditions), the regulation of sulfur metabolism in green algae and plants, the use of nanoelectrodes and atomic force microscopy to probe the structure and dynamics of the photosynthetic apparatus, and pathways for photosynthetic electron flow in photosynthetic microbes in marine and fresh water environments. They have also devoted significant effort toward generating a more thorough analysis of the Chlamydomonas genome and establishing various methods for examining the transcriptome and the function of proteins involved in photosynthesis and acclimation processes.