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Increase in CO2 concentration reduces the competitiveness of 2-methylisoborneol-producing cyanobacteria: evidence from
Pseudanabaena - Journal of Oceanology and Limnology Vol. 43, Issue 6, Pages: 1913-1922(2025)
- Affiliations：
1.College of Life Science, Xinyang Normal University, Xinyang 464000, China
2.State Key Laboratory of Freshwater Ecology and Biotechnology, Institute of Hydrobiology, Chinese Academy of Sciences, Wuhan 430072, China
- Author bio：
biyh@ihb.ac.cn
- Funds：
DOI：10.1007/s00343-025-4244-8
CLC：Received：08 September 2024，
Published：01 November 2025
- Accepted：
Scan QR Code
QIU Pengfei,MI Wujuan,SONG Gaofei,et al.Increase in CO,2 concentration reduces the competitiveness of 2-methylisoborneol-producing cyanobacteria: evidence from ,Pseudanabaena[J].Journal of Oceanology and Limnology,2025,43(06):1913-1922.
QIU Pengfei,MI Wujuan,SONG Gaofei,et al.Increase in CO,2 concentration reduces the competitiveness of 2-methylisoborneol-producing cyanobacteria: evidence from ,Pseudanabaena[J].Journal of Oceanology and Limnology,2025,43(06):1913-1922. DOI： 10.1007/s00343-025-4244-8.
摘要
Abstract
The global rise in CO
2
concentration is having a profound impact on the structure and function of aquatic ecosystems. However
little information is available on the responses of odor-producing cyanobacteria to the increase in CO
2
concentration. In this study
the effects of different CO
2
concentrations on 2-methylisoborneol (MIB)-producing
Pseudanabaena
and non-2-MIB-producing
Pseudanabaena
under monoculture and co-culture conditions were investigated. Results show that the specific growth rate of
Pseudanabaena
gradually increased with the rise in CO
2
concentration
and for the 2-MIB-producing strain
this increase was significantly higher than the non-2-MIB-producing strain. Under co-culture conditions
the proportion of non-2-MIB-producing
Pseudanabaena
was significantly higher than that of 2-MIB-producing
Pseudanabaena
suggesting a superior competitive ability of non-2-MIB-producing
Pseudanabaena
over 2-MIB-producing
Pseudanabaena
. Under monoculture conditions
the total 2-MIB production at the 300-μg/g CO
2
concentration was significantly higher than that at 600- and 1 200-μg/g CO
2
concentrations. The 2-MIB concentration produced by
Pseudanabaena
decreased with the increasing in CO
2
concentration. Therefore
we believe that with the future increase in CO
2
concentration
2-MIB concentration would be decreased and so would the risk of 2-MIB outbreaks.
关键词
Keywords
references
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