%0 Journal Article %T Nitrogen fixation and heterocysts in the blue-green alga Anabaena cylindrica %A OHMORI,, MASAYUKI %A HATTORI,, AKIHIKO %J Plant and Cell Physiology %V 12 %N 6 %P 961-967 %@ 0032-0781 %D 1971-12-01 %I Oxford University Press %~ DeepDyve