In diatoms the main photosynthetic pigments are chlorophylls and has long been known for producing in addition to these generic pigments a water-soluble blue pigment marennine. that possesses antibiotic activities [3] and has recently been shown to produce a novel “deep blue” pigment [4]. The study of marine bacteria started and expanded later but a… Continue reading In diatoms the main photosynthetic pigments are chlorophylls and has long