response to abiotic stimulus
   |__response to radiation
       |__response to light stimulus  163 rec.
           |__cellular response to light stimulus 49 rec.
           |   |__cellular response to blue light(+) 1 rec.
           |   |__cellular response to light intensity(+) 3 rec.
           |   |__cellular response to red or far red light(+)
           |   |__cellular response to UV(+) 15 rec.
           |   |__G protein-coupled opsin signaling pathway(+) 23 rec.
           |__cone photoresponse recovery
           |__de-etiolation
           |__detection of light stimulus 65 rec.
           |   |__detection of light stimulus involved in sensory perception(+) 10 rec.
           |   |__detection of UV(+) 6 rec.
           |   |__detection of visible light(+) 30 rec.
           |   |__light absorption(+) 2 rec.
           |   |__phototransduction(+) 60 rec.
           |__energy quenching
           |   |__chlorophyll fluorescence
           |   |__nonphotochemical quenching
           |__photoperiodism 15 rec.
           |   |__entrainment of circadian clock by photoperiod 14 rec.
           |   |__long-day photoperiodism(+)
           |   |__photoperiodism, flowering(+)
           |   |__response to photoperiod, blue light 1 rec.
           |   |__response to photoperiod, red light
           |   |__short-day photoperiodism(+)
           |__photoprotection
           |__phototaxis 30 rec.
           |   |__negative phototaxis 5 rec.
           |   |__positive phototaxis 4 rec.
           |__response to blue light 2 rec.
           |   |__cellular response to blue light(+) 1 rec.
           |   |__phototropism
           |   |__response to high fluence blue light stimulus by blue high-fluence system
           |   |__response to low fluence blue light stimulus by blue low-fluence system
           |   |__response to photoperiod, blue light 1 rec.
           |__response to light intensity 5 rec.
           |   |__background adaptation(+)
           |   |__cellular response to light intensity(+) 3 rec.
           |   |__light adaption
           |   |__photosynthetic acclimation
           |   |__response to absence of light(+)
           |   |__response to high light intensity(+) 1 rec.
           |   |__response to low light intensity stimulus(+)
           |   |__response to very low light intensity stimulus(+)
           |__response to red or far red light 2 rec.
           |   |__cellular response to red or far red light(+)
           |   |__photomorphogenesis(+)
           |   |__regulation of response to red or far red light(+)
           |   |__response to far red light(+)
           |   |__response to red light(+) 2 rec.
           |   |__shade avoidance(+)
           |__response to UV 31 rec.
           |   |__cellular response to UV(+) 15 rec.
           |   |__detection of UV(+) 6 rec.
           |   |__pigment accumulation in response to UV light(+)
           |   |__response to UV-A(+)
           |   |__response to UV-B(+) 1 rec.
           |   |__response to UV-C(+) 1 rec.
           |   |__UV protection 3 rec.
           |__visual behavior 25 rec.
               |__optokinetic behavior(+) 4 rec.
               |__pattern orientation 1 rec.
               |__visual learning 6 rec.