Aerobic anoxygenic phototrophs play important roles in nutrient cycling within cyanobacterial Microcystis bloom microbiomes DOI Creative Commons
Haiyuan Cai, Christopher J. McLimans, Helong Jiang

et al.

Microbiome, Journal Year: 2024, Volume and Issue: 12(1)

Published: May 13, 2024

Abstract Background During the bloom season, colonial cyanobacterium Microcystis forms complex aggregates which include a diverse microbiome within an exopolymer matrix. Early research postulated simple mutualism existing with bacteria benefitting from rich source of fixed carbon and receiving recycled nutrients. Researchers have since hypothesized that represent community synergistic interacting species, interactome, each unique metabolic capabilities are critical to growth, maintenance, demise blooms. Research has also shown aggregate-associated taxonomically different free-living in surrounding water. Moreover, identified little overlap functional potential between members its microbiome, further supporting interactome concept. However, we still lack verification general interaction know about taxa pathways nutrient metabolite cycling aggregates. Results 7-month study bacterial communities comparing Lake Taihu, China, found aerobic anoxygenic phototrophic (AAP) were significantly more abundant than samples, suggesting possible role for AAP overall aggregate function. We then analyzed gene composition 102 high-quality metagenome-assembled genomes (MAGs) bloom-microbiome 10 lakes spanning four continents, compared 12 complete revealed possessed complementary biochemical could serve C, N, S, P cycling. Mapping published transcripts blooms onto comprehensive non-AAP MAG database (226 MAGs) indicated observed high levels expression genes involved bacteria. Conclusions Our results provide strong corroboration first evidence may play important microbiomes.

Language: Английский

Bloom-induced internal release controlling phosphorus dynamics in large shallow eutrophic Lake Taihu, China DOI
Lijuan Kang, Guangwei Zhu, Mengyuan Zhu

et al.

Environmental Research, Journal Year: 2023, Volume and Issue: 231, P. 116251 - 116251

Published: May 26, 2023

Language: Английский

Citations

17
Chemodiversity of Cyanobacterial Toxins Driven by Future Scenarios of Climate Warming and Eutrophication DOI
Yalan Yang, Huan Wang, Shuwen Yan

et al.

Environmental Science & Technology, Journal Year: 2023, Volume and Issue: 57(32), P. 11767 - 11778

Published: Aug. 3, 2023

Climate change and eutrophication are two environmental threats that can alter the structure of freshwater ecosystems their service functions, but we know little about how ecosystem function will evolve in future scenarios climate warming. Therefore, created different experimental scenarios, including present-day conditions, a 3.0 °C increase mean temperature, "heatwaves" scenario (i.e., an temperature variability) to assess effects on phytoplankton communities under simultaneous stress from herbicides. We show warming, particularly heatwaves, associated with elevated cyanobacterial abundances toxin production, driven by mainly nontoxic toxic Microcystis spp. The reason for higher concentrations is likely because dual pressures warming individual toxin-producing ability decreased. Eutrophication temperatures significantly increased biomass Microcystis, leading concentrations. In contrast, alone did not produce or due depletion available nutrient pool. Similarly, herbicide glyphosate affect any taxa. case enrichment, were much than strong boost potential producers. From broader perspective our study shows warmer climate, loading has be reduced if dominance controlled.

Language: Английский

Citations

17
Strategies for regulating the intensity of different cyanobacterial blooms: Insights from the dynamics and stability of bacterioplankton communities DOI
Baohai Zheng,

Peichang Dong,

Teng Zhao

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 918, P. 170707 - 170707

Published: Feb. 6, 2024

Language: Английский

Citations

8
Climate change intensifies algal biomass resurgence in eutrophic Lake Taihu, China DOI
Ting Pan,

Chixiao Cui,

Boqiang Qin

et al.

The Science of The Total Environment, Journal Year: 2024, Volume and Issue: 926, P. 171934 - 171934

Published: March 26, 2024

Language: Английский

Citations

7
Aerobic anoxygenic phototrophs play important roles in nutrient cycling within cyanobacterial Microcystis bloom microbiomes DOI Creative Commons
Haiyuan Cai, Christopher J. McLimans, Helong Jiang

et al.

Microbiome, Journal Year: 2024, Volume and Issue: 12(1)

Published: May 13, 2024

Abstract Background During the bloom season, colonial cyanobacterium Microcystis forms complex aggregates which include a diverse microbiome within an exopolymer matrix. Early research postulated simple mutualism existing with bacteria benefitting from rich source of fixed carbon and receiving recycled nutrients. Researchers have since hypothesized that represent community synergistic interacting species, interactome, each unique metabolic capabilities are critical to growth, maintenance, demise blooms. Research has also shown aggregate-associated taxonomically different free-living in surrounding water. Moreover, identified little overlap functional potential between members its microbiome, further supporting interactome concept. However, we still lack verification general interaction know about taxa pathways nutrient metabolite cycling aggregates. Results 7-month study bacterial communities comparing Lake Taihu, China, found aerobic anoxygenic phototrophic (AAP) were significantly more abundant than samples, suggesting possible role for AAP overall aggregate function. We then analyzed gene composition 102 high-quality metagenome-assembled genomes (MAGs) bloom-microbiome 10 lakes spanning four continents, compared 12 complete revealed possessed complementary biochemical could serve C, N, S, P cycling. Mapping published transcripts blooms onto comprehensive non-AAP MAG database (226 MAGs) indicated observed high levels expression genes involved bacteria. Conclusions Our results provide strong corroboration first evidence may play important microbiomes.

Language: Английский

Citations

7