Effects of Climate Change on 2-Methylisoborneol Production in Two Cyanobacterial Species

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	Effects of Climate Change on 2-Methylisoborneol Production in Two Cyanobacterial Species
	Zhang, Junzhi; Ma, Wenlin; Qiu, Lijia; You, Yu; Meng, Xuanyi; Wang, Xiaoting; Yu, Jianwei; Li, Luwei
刊名	WATER
	2017-11-01
卷号	9 期号:11 页码:-
关键词	2-methylisoborneol Dissolved Inorganic Carbon Dolichospermum Spiroides Planktothrix Sp Climate Change
英文摘要	2-Methylisoborneol (2-MIB) is a common off-flavor metabolite, and it has a very low odor threshold value. 2-MIB is produced by a variety of cyanobacteria and heterotrophic bacteria. In this study, Dolichospermum spiroides (Anabaena spiroides, FACHB 498) and Planktothrix sp. (FACHB 1371) were investigated. The influence of high temperature (27, 35, and 40 degrees C) and dissolved inorganic carbon (DIC, 18.4, 27.5, and 36.7 mg/L) on the two 2-MIB-producing cyanobacteria were simulated to study the effect of climate change on 2-MIB production. DIC had an effect on 2-MIB production by Planktothrix sp. The results showed that the highest DIC concentration (36.7 mg/L) led to the fastest algal growth, which increased 2-MIB production by Planktothrix sp. However, 40 degrees C killed all the cyanobacteria. The higher temperature (35 degrees C) shortened the lifecycle of the two cyanobacteria because it moved forward their logarithmic phase compared to 27 degrees C. The 2-MIB-producing potential of Dolichospermum spiroides may increase at 35 degrees C. The Dolichospermum spiroides results showed that the fluorescence intensity and the concentration of extracellular 2-MIB were highly correlated (r(2) 0.90). At 35 degrees C, there was a stronger correlation between extracellular dissolved organic matters' (DOMs, fulvic acid (P3 (r(2) = 0.90)), humic acid (P4 (r(2) = 0.92)) and the soluble microbial metabolites' (P5 (r(2) = 0.71)) fluorescence peak intensities and 2-MIB concentration. The Dolichospermum sproides 2-MIB-producing potential was affected by extracellular humus. The Planktothrix sp. 2-MIB-producing potential declined in general over the growth period. In addition, temperature had no significant effect on the Planktothrix sp. 2-MIB-producing potential and the extracellular 2-MIB component.
内容类型	期刊论文
源URL	[http://ir.rcees.ac.cn/handle/311016/39496]
专题	生态环境研究中心_环境水质学国家重点实验室
推荐引用方式 GB/T 7714	Zhang, Junzhi,Ma, Wenlin,Qiu, Lijia,et al. Effects of Climate Change on 2-Methylisoborneol Production in Two Cyanobacterial Species[J]. WATER,2017,9(11):-.
APA	Zhang, Junzhi.,Ma, Wenlin.,Qiu, Lijia.,You, Yu.,Meng, Xuanyi.,...&Li, Luwei.(2017).Effects of Climate Change on 2-Methylisoborneol Production in Two Cyanobacterial Species.WATER,9(11),-.
MLA	Zhang, Junzhi,et al."Effects of Climate Change on 2-Methylisoborneol Production in Two Cyanobacterial Species".WATER 9.11(2017):-.