What are some characteristics of Deinococcus?
-lives at lower temps
-very rapid DNA repair
What are some characteristics of Chloroflexi?
-Green nonsulfur bacteria
-Live at high temps (microbial mats in yellowstone)
-many have chromosomes (contain photosynthetic apparatus)
-main filamentous phototrophs besides cyanobacteria
What are some functional characteristics of cyanobacteria?
-O2 production unique to this group and chloroplasts
-many fix N
-can photolyze hydrogen in absence of oxygen
-grow as filaments, single cells, endosymbionts or colonies
What is the purpose of the mucilage production in cyanobacteria?
-Exclude O2 (for N fixation by heterocysts and photolyzation of H)