Rhodospirillaceae - isolation & purification, DNA, Bacterial - isolation & purification, Harmful Algal Bloom, Benzoic Acid - metabolism, Phylogeny, Dinoflagellida - growth & development, Rhodospirillaceae - physiology, Antibiosis, Sequence Analysis, DNA, Dinoflagellida - microbiology, Water Pollution, China, Mass Spectrometry, Chromatography, Liquid, RNA, Ri...