ArticleEnvironmental science and pollution research international2022
Temperature affects growth, geosmin/2-methylisoborneol production, and gene expression in two cyanobacterial species.
Article in Environmental science and pollution research international, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 8 papers.
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8 citing papers in PubMed, 28 citations in OpenAlex.
- Influence of Temperature Regimes on the Production of 2-MIB and Geosmin by Pseudanabaena galeata and Phormidium ambiguum.Water environment research : a research publication of the Water Environment Federation · 2025Article
- Article
- Myxobacteria isolated from recirculating aquaculture systems (RAS): ecology and significance as off-flavor producers.Applied and environmental microbiology · 2025Article
- Determination of Geosmin and 2-Methylisoborneol and Associated Microbial Composition in Rainbow Trout Aquaculture Systems for Human Consumption.Foods (Basel, Switzerland) · 2025Article
- Geosmin Events Associated withMicroorganisms · 2024Article
- Effect of Culture Temperature on 2-Methylisoborneol Production and Gene Expression in Two Strains ofCells · 2024Article
- Recoverability ofMicroorganisms · 2023Article
- qPCR-Based Monitoring of 2-Methylisoborneol/Geosmin-Producing Cyanobacteria in Drinking Water Reservoirs in South Korea.Microorganisms · 2023Article
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13 authors at 6 institutions in 1 country.
Funding
Abstract
Cyanobacterial blooms accompanied by taste and odor (T&O) compounds affect the recreational function and safe use of drinking water. Geosmin and 2-methylisoborneol (2-MIB) are the most common T&O compounds. In this study, we investigated the effect of temperature on geosmin and 2-MIB production in Dolichospermum smithii and Pseudanabaena foetida var. intermedia. More specifically, transcription of one geosmin synthase gene (geoA) and two 2-MIB synthase genes (mtf and mtc) was explored. Of the three temperatures (15, 25, and 35 °C) tested, the maximum Chl-a content was determined at 25 °C in both D. smithii and P. foetida var. intermedia. The maximum total geosmin concentration (19.82 μg/L) produced by D. smithii was detected at 25 °C. The total 2-MIB concentration (82.5 μg/L) produced by P. foetida var. intermedia was the highest at 35 °C. Besides, the lowest Chl-a content and minimum geosmin/2-MIB concentration were observed at 15 °C. There was a good positive correlation between geosmin/2-MIB concentration and Chl-a content. The expression levels of the geoA, mtf, and mtc genes at 15 °C were significantly higher than those at 25 and 35 °C. The transcription of the mtf and mtc genes in P. foetida var. intermedia was higher at 35 °C than at 25 °C. The results highlight unfavorable temperature can increase the potential of geosmin/2-MIB synthesis from the gene expression level in cyanobacteria. This study could provide basic knowledge of geosmin/2-MIB production by cyanobacteria for better understanding and management of T&O problems in drinking water.
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