Ankistrodesmus sp. EHY exposed to cadmium and Nanoselenium

Due to the increasing environmental pollution and greenhouse effect, conventional energy can no longer meet the human demand for sustainable development. Microalgae biodiesel is one of the best options to solve the global energy problem and achieve CO2 reduction. However, the development of microalgae biodiesel is currently facing the problems of high cost and low yield. Finding a low-cost and high-yield microalgae culture strategy is important to promote the industrialization of microalgae biodiesel. Replacing part of the fresh culture medium with recycled medium can reduce the cost of microalgae culture. On this basis, cadmium stress is an effective means to promote the accumulation of lipid by microalgae, but it also inhibited the photosynthetic efficiency, reduced the biomass and lipid production of microalgae. Therefore, it is very important to improve the carbon sequestration efficiency and lipid yield of microalgae under stress. Nanoselenium is a novel, low-toxicity of nanomaterial that can enhance plant stress resistance and maintain plant cell growth under stress.