SEARCH Articles Figures Tables Dictyostelium slug phototaxis Negative phototaxis Phototaxis Chemotaxiss Phototaxis action spectrum Phototaxis and Phototropism Phototaxis photoactive yellow proteins Phototaxis reactions Phototaxis rhodopsin Prokaryotic phototaxis Prokaryotic phototaxis Halobacterium salinarum Prokaryotic phototaxis Halorhodospira halophila Prokaryotic phototaxis Rhodobacter sphaeroides Vision and Phototaxis