Research progress on algal-microbial interactions and the dynamic change mechanisms of algal community in aquatic environments
The explosive growth of algal biomass in water can degrade water quality,which poses hazards to the stability of aquatic ecosystems and human health.Both environmental and biological factors have influence on algal biomass and community composition.This review provides an overview of the diversity characteristics of bacteria,fungi and archaea in the phycosphere from a microbiological perspective.It elaborates on the ecological relationships established among algae and microorganisms,including mutualism,commensalism,competition and algicidal interactions.Microorganisms can stimulate the growth of algae through the exchange of a series of nutrients and growth factors.Alternatively,they may engage in nutrient competition within the habitat or release algicidal substances to suppress algal proliferation.Presently,research on the mechanisms governing algal community dynamics tends to concentrate on the impact of environmental factors,which often neglects the role of biological factors.Elucidating the interactions between algae and microorganisms is crucial for a comprehensive analysis of the spatial and temporal characteristics of algal communities.This understanding allows us to construct the ecological driving mechanisms behind algal community dynamics,thereby providing a scientific foundation for the sustainable prevention and control of algal blooms.
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