Marine blue-green algae

The Effects of Light Intensity on Acetylene Reduction by Blue‐green Algal Mats in Sub‐tropical Grassland

“…These results, however, are for short-term experiments and differ from those obtained in longer term growth experiments when it was found that algae in culture were inhibited or discoloured at light intensities normally pertaining in the habitat from which they were isolated (Allison, Hoover and Morris, 1937;Jones and Stewart, 1969;Fogg et al, 1973;Jones, 1974).…”

“…Much work has been concerned with the relationship between photosynthesis and nitrogen fixation by blue-green algae (see reveiws by Stewart, 1973;Fogg et al, 1973;Fogg, 1974;Stewart, 1974). Most of the literature relating to the affects of light intensity on nitrogen fixation is for aquatic habitats and the results show that there is a dependence on light for nitrogen fixation and that high light intensities may be inhibitory (Fogg, 1974).…”

Comparative Sensitivity of Freshwater Algae to Atrazine

“…and Euglenoid: Euglena gracilis Klebs) and the University of Texas Culture Collection (Cyanobacteria: Synechococcus sp.). The diatoms, green algae, and cryptomonad were grown in WC freshwater medium (Nichols 1973;Tang et al 1997), the cyanobacteria in Allen's medium (Fogg et al 1973), and the euglenoid in soil-water extract (Nichols 1973). Different media were used to achieve high growth rates for each species.…”

Acetylene Reduction by Mats of Blue‐green Algae in Sub‐tropical Grassland: Possible Contribution by Other Micro‐organisms

“…Micro-aerophilic conditions, which from the literature (Wyatt and Silvey, 1969;Stewart and Lex, 1970;Rippka et al, 1971;Stanier et al, 1971;Kenyon et al, 1972;Singh, 1972, and see reviews by Fogg, 1973;Fogg et al, 1973;Fogg, 1974;Stewart, 1974) might be expected to promote acetylene reduction by non-heterocystous blue-green algae, did not do so with the Phormidium-mats used in these experiments.…”