Controlling Algal Growth

Linking algal growth inhibition to chemical activity

Kinetic 15N-isotope effects on algal growth

Stable isotope labeling is a standard technique for tracing material transfer in molecular, ecological and biogeochemical studies. The main assumption in this approach is that the enrichment with a heavy isotope has no effect on the organism metabolism and growth, which is not consistent with current theoretical and empirical knowledge on kinetic isotope effects. Here, we demonstrate profound c...

Controlling Microbial Growth

In its strictest sense, sterilization refers to the removal or destruction of all microbes, including viruses and bacterial endospores, in or on an object. (The term does not apply to prions.) In practical terms, sterilization techniques eradicate harmful microbes, but some innocuous microbes may still be pres­ ent. The term aseptic describes an environment or procedure that is free of con­ tam...

An investigation of non-steady-state algal growth. II. Mathematical modelling of co-nutrient-limited algal growth

The ability of mathematical models to simulate competition for nutrients between three algal species, the diatom Thalassiosira pseudonana, a marine raphidophyte Heterosigma carterae and the dinoflagellate Alexandrium minutum, was investigated. Transient growth models were parameterized and tested using a number of closely controlled laboratory data sets including batch monocultures, batch compe...

Controlling Ornamental Cabbage and Kale (Brassica oleracea) Growth via Cycocel

Chlormequat (cycocel or CCC), the plant growth retardant, was evaluated for its ability to control plant height in Brassica oleracea cultivar ‘Kamome White’ and ‘Nagoya Red’. Different concentrations of CCC (0, 500, 1000 and 1500 mg/L) were sprayed and drenched on plants 40 days after transplanting. Data were recorded the 60 and 90 days after transplanting. The 1500 mg/L of CCC resulted in abou...