Effects of different media composition, light intensity and photoperiod on the morphology and physiology of freshwater microalgae Ankistrodesmus falcatus - potential strain for biofuel production
Hello Ms. Muna Naeemah
The morphology and physiology of any algae is influenced primarily by their ambient environment. Genetics, availability/scarcity (concentration) of dissolved plant nutrients, level of pH (water and sedimnetd injected), rate of photosynthesis, ambient PAR, turbidity, salinity, dissolved gases, TOC, DIC/DOC, hardness, alkalinity, proximity to point sources, anthropogenic perturbations, habit (whether sedentary/benthic or planktonic), bacteria-algae interaction (hence Eh as well), grazing pressure from zooplankton and higher trophic level grazers, turbulences (Reylonds number) in the water column (stress induced by laminar shear), interspecies competition, ecological succession, allolopathic stresses etc all contribute either in tandem or together to modify the lives of microplankton in both freshwater as well as in marine ecosystems or anything in between. Depending on the physicocehmistry of the water body the degree of intensity of the effects of such variales vary greatly.
Regards,
Dr. Abhishek Mukherjee
Herbivore pressure is known to induce colony formation in the family Scenedesmaceae. In addition, recently discovered that the addition of organic carbon changes the morphology of a freshwater species.
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