phototropic bacteria(n = noun.animal) phototrophic bacteria - green and purple bacteria; energy for growth is derived from sunlight; carbon is derived from carbon dioxide or organic carbon;
is a kind of eubacteria, eubacterium, true bacteria
has particulars: purple bacteria

bacteria, bacteria bed, bacteria family, bacteria genus, bacteria order, bacteria species, endospore-forming bacteria, enteric bacteria, gliding bacteria, nitric bacteria, nitrous bacteria, penicillin-resistant bacteria, phototrophic bacteria, phototropic, potato scab bacteria, purple bacteria, pus-forming bacteria, ring rot bacteria, slime bacteria, sulfur bacteria, sulphur bacteria, true bacteria