摘要
本文中我们总结了关于波罗的海蓝藻细菌的现有知识,着重于丝状体蓝藻细菌的多样性、毒性和固氮。我们还对我们在波罗的海进行的浮游和水底生境中细菌多样性研究的最新结果进行了综述。我们基于分子分析,通过评估在形态上无法分离的物种之间的基因多样性增加了对蓝藻细菌群体结构的理解。另外,我们还研究了细菌功能,例如不同环境条件下的毒素产量和固氮。我们还清楚的证明了藻华形成和蓝藻细菌固氮的磷限制,强调了在波罗的海不懈努力减少这种元素的重要性。我们设计了一种快速的和可靠的检测蓝藻细菌Nodolaria spomigena毒性的方法,可以用来研究这种重要的毒性制造者的藻华形成过程。
In this article we summarize the current knowledge of Baltic Sea cyanobacteria,focusing on diversity,toxicity,and nitrogen fixation in the filamentous heterocystous taxa.We also review the recent results of our microbial diversity studies in planktonic and benthic habitats in the Baltic Sea.Based on molecular analyses,we have improved the understanding of cyanobacterial population structure by assessing genetic diversity within species that are morphologically inseparable.Moreover,we have studied microbial functions such as toxin production and nitrogen fixation in situ under different environmental conditions.Phosphorus limitation of bloomforming, nitrogen-fixing cyanobacteria was clearly verified,emphasizing the importance of continuous efforts to reduce this element in the Baltic Sea.We have designed a rapid and reliable detection method for the toxic cyanobacterium Nodularia spumigena,which can be used to study bloom formation of this important toxin producer.
