Project description:Dinoflagellate blooms are natural phenomena that have drawn global attention due to their huge negative impacts on marine ecosystems, mariculture and human health. Although the understanding of dinoflagellate blooms has been significantly improved over the past half century, little is known about the underlying mechanisms sustaining the high biomass growth rate during the bloom period which is paradoxically characterized by low dissolved CO2 and inorganic nutrients. Here, we compared the metaproteomes of non-bloom, mid-bloom and late-bloom cells of a marine dinoflagellate Prorocentrum donghaiense in the coastal East China Sea, to understand the underlying mechanisms sustaining high biomass growth rate under the typically low CO2 and inorganic nutrient conditions.
Project description:we applied a metaproteomic approach to investigate the global protein expression profiles of two co-existing phytoplankton species H. akashiwo and P. donghaiense during their bloom periods, and characterized the differentially expressed proteins. Our results indicated different light-harvesting ability and nutritional niche divergence in utilization of carbon, nitrogen and phosphorus drove bloom occurrence of the two phytoplankton species under different ambient conditions.
