@article{oai:ir.soken.ac.jp:00003890,
 author = {渡辺, 正勝 and MATSUNAGA, Shigeru and UCHIDA, Hiroko and ISEKI, Mineo and WATANABE, Masakatsu and MURAKAMI, Akio},
 issue = {2},
 journal = {Photochemistry and Photobiology, Photochemistry and Photobiology},
 month = {Mar},
 note = {Using infrared high-speed video microscopy, we observed light-triggered transitory flagellar motions in flagellate reproductive cells (swarmers) of a brown alga, Scytosiphon lomentaria, under primary helical swimming conditions before and during negative phototactic orientation to unilateral actinic light. The posterior flagellum, which is autofluorescent and thought to be light-sensing, was passively dragged in the dark and exhibited one to several rapid lateral beats during orientation changes for phototactic steering. Notably, a brief cessation of anterior flagellar beating was occasionally observed concomitantly with rapid beats of the posterior flagellum. This behavior caused a pause in helical body rotation, which may contribute to the accuracy of phototactic steering. Thus, coordinated regulation of the movement of the two flagella plays a crucial role in phototactic steering.},
 pages = {374--381},
 title = {Flagellar motions in phototactic steering in a brown algal swarmer},
 volume = {86},
 year = {2010}
}