Use of Copper to Selectively Inhibit Brachionus calyciflorus (Predator) Growth in Chlorella kessleri (Prey) Mass Cultures for Algae Biodiesel Production
Use of Copper to Selectively Inhibit Brachionus calyciflorus (Predator) Growth in Chlorella kessleri (Prey) Mass Cultures for Algae Biodiesel Production
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使用铜选择性抑制萼花臂尾轮虫（捕食者）在凯斯勒小球藻（猎物）大规模培养物中的生长，用于藻类生物柴油生产
DOI：
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发表时间：
2015
影响因子：
5.6
通讯作者：
Yongsheng Chen
中科院分区：
文献类型：
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作者：
V. Pradeep;Steven W. van Ginkel;Sichoon Park;Thomas Igou;Christine Yi;Hao Fu;R. Johnston;T. Snell;Yongsheng Chen
一只臂尾轮虫每小时可以吞噬数千个藻类细胞，导致藻类池塘在感染后几天内崩溃。因此，为了使藻类生物燃料生产成为现实，迫切需要减少轮虫。铜可以选择性地抑制藻类池塘中的轮虫，从而保护藻类作物。通过差示毒性试验，比较了轮虫-花瓣轮虫和凯氏轮藻对铜的敏感性。轮虫的LC_(50)为0.1ppm，而藻类在5ppm的铜(II)浓度下不受影响。轮虫胃的低pH值可能会使它对铜更敏感。然而，当这些培养物结合在一起时，需要1.5ppm的铜浓度来抑制轮虫，因为藻类结合了铜，降低了其生物利用率。铜(X Ppm)对下游脂肪酸甲酯的萃取没有影响。
A single Brachionus rotifer can consume thousands of algae cells per hour causing an algae pond to crash within days of infection. Thus, there is a great need to reduce rotifers in order for algal biofuel production to become reality. Copper can selectively inhibit rotifers in algae ponds, thereby protecting the algae crop. Differential toxicity tests were conducted to compare the copper sensitivity of a model rotifer—B. calyciflorus and an alga, C. kessleri. The rotifer LC50 was <0.1 ppm while the alga was not affected up to 5 ppm Cu(II). The low pH of the rotifer stomach may make it more sensitive to copper. However, when these cultures were combined, a copper concentration of 1.5 ppm was needed to inhibit the rotifer as the alga bound the copper, decreasing its bioavailability. Copper (X ppm) had no effect on downstream fatty acid methyl ester extraction.