cyanobacteria

β-N-methylamino-L-alanine hydrochloride (L-BMAA hydrochloride) 是由蓝细菌产生的一种神经毒素，既有导致肌萎缩性侧索硬化症 (ALS) 以及其他可能的神经退行性疾病可能性。

Scytonemin is a biological pigment synthesized by many strains of cyanobacteria, including Calothrix sp., Lyngbya aestuarii, and others. Scytonemin is also a potent PKL1 inhibitor, which inhibits cell proliferation and arrests cell cycle through downregulating Plk1 activity in many cancel cells. Scytonemin was able to inhibit the proliferation of three myeloma cells in a dose-dependent manner, while U266 was the most sensitive one to scytonemin. Scytonemin , representing a novel Plk1 inhibitor, induced the inhibition of cell growth and cell cycle arrest in multiple myeloma cells by specifically decreasing Plk1 activity.

Microcystin-WR为蓝藻代谢产物中的一种微囊藻毒素，对小鼠表现出肝脏毒性。

Grahamimycin B 对革兰氏阳性菌、革兰氏阴性菌、蓝藻和绿藻的活性较弱。

Argimicin A 是从Sphingomonassp. 中分离出的一种抗生素，对有毒蓝藻展现溶藻活性，可抑制M. viridis和M. aeruginosa，IC50分别为12 ng/mL和100 ng/mL。

Menominin B 是一种在淡水海绵相关蓝藻 Nostoc sp. 中发现的环肽，展现出细胞毒性特性。它对卵巢癌细胞株 OVCAR3 具有抗增殖活性 (IC50为 2.4 μM)。这种化合物在抗癌研究中具有潜在应用价值。

Argimicin C 是从 Sphingomonas sp. 中提取的一种抗生素。该化合物对多种有毒蓝藻表现出杀藻活性，其最低抑菌浓度（MIC）为低微摩尔水平。

Argimicin B 是从 Sphingomonas sp. 中提取的抗生素，具有显著的杀藻活性，特别对多种有害蓝藻有效，其最低抑制浓度（MIC）达到微摩尔水平。