Cultivation and growth of two planktonic Oscillatoria species

Abstract
Summary Oscillatoria rubescens and O. redekei were isolated (not free of bacteria) and cultivated. Alterations of trichome-diameter, cell-length, buoyancy and pigmentation in relation to cultivation-conditions were investigated. The growth — C-fixation, increase of dry substance, extinction and cell number — were measured under different cultivation-conditions, too.