Institute of Agri-Food and Land Use, School of Biological Sciences, Queens University Belfast, Belfast BT9 5AY, UK.
Environ Toxicol. 2011 Oct;26(5):566-70. doi: 10.1002/tox.20577. Epub 2010 Apr 5.
We report the results of a synoptic survey at 14 sites across the north of Ireland undertaken to determine the occurrence of cyanobacteria and their constituent microcystin cyanotoxins. Seven microcystin toxins were tested for, and five of which were found, with MC-LR, MC-RR, and MC-YR being the most prevalent. Gomphosphaeria spp and Microcystis aeruginosa were the most dominant cyanobacterial species encountered. Together with Aphanizomenon flos-aquae, these were the cyanobacteria associated with the highest microcystin concentrations. The occurrence of several microcystin toxins indicates that there may potentially be more than one cyanobacteria species producing microcystins at many sites. Total microcystin concentrations varied over three orders of magnitude dividing the sites into two groups of high (>1000 ngMC/μgChla, six sites) or low toxicity (<200 ngMC/μgChla, eight sites).
我们报告了在北爱尔兰北部 14 个地点进行的综合调查结果，旨在确定蓝藻的发生情况及其组成的微囊藻毒素蓝藻毒素。测试了七种微囊藻毒素，其中发现了五种，其中 MC-LR、MC-RR 和 MC-YR 最为普遍。发现的最主要的蓝藻物种是 Gogmphhaeria 属和铜绿微囊藻。与鱼腥藻一起，这些是与最高微囊藻毒素浓度相关的蓝藻。几种微囊藻毒素的存在表明，在许多地点，可能有不止一种蓝藻产生微囊藻毒素。总微囊藻毒素浓度跨越三个数量级，将这些地点分为两组：高毒性（>1000 ngMC/μgChla，六个地点）或低毒性（<200 ngMC/μgChla，八个地点）。
