SNPs showed potent anti-algal properties on two cyanobacteria, namely, Anabaena spp. and Cylindrospermum spp. At a concentration of 800 μg/ml of SNPs, maximum anti-algal activity was observed in both cyanobacteria.
When the algal cells grew on D-glucose, the enzyme activity was not detectable, independent of induction modes.
Consistent with the findings of Perez and Weis (2006) no activity was observed in symbiotic dinoflagellates freshly isolated from the three cnidarian species nor in cultured algal cells.
The other measurements of algal O2− production and coral antioxidant activity are highly reproducible and, once mastered, are relatively easy.
Results indicated that both the Rubisco content and the initial carboxylase activity were notably higher in algal gametophytes than in the sporophytes, which suggested that the Rubisco content and the initial carboxylase activity were related to the ploidy of the generations of the four algal species.
This activity is, in part, due to the similarities of the algal polyanions to mammalian heparin sulphate molecules.
The metabolites belonging to the indole class of alkaloids have anti-algal activity, and consequently are associated with allelopathic interactions.
A variety of biological activities are reported for algal polysaccharides including the transcendent antiviral effect.
Total SOD activity in algal thalli was determined by using a Total Superoxide Dismutase Assay kit (Nanjing Jiancheng Bioengineering Institute) based on measuring the enzyme's ability to inhibit the photochemical reduction of tetrazolium blue.
The findings implied that the increase in TR activity in algal cells was a stress response to selenium cytotoxicity.
What the team did find, however, were multiple grains encrusted in iron oxides that could hint at past algal activity.
