Please use this identifier to cite or link to this item: https://doi.org/10.3390/metabo12050406
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dc.titleEffects of Light and Temperature on the Metabolic Profiling of Two Habitat-Dependent Bloom-Forming Cyanobacteria
dc.contributor.authorMohanty, Bijayalaxmi
dc.contributor.authorMajedi, Seyed Mohammad
dc.contributor.authorPavagadhi, Shruti
dc.contributor.authorTe, Shu Harn
dc.contributor.authorBoo, Chek Yin
dc.contributor.authorGin, Karina Yew-Hoong
dc.contributor.authorSwarup, Sanjay
dc.date.accessioned2022-08-15T12:47:02Z
dc.date.available2022-08-15T12:47:02Z
dc.date.issued2022-05-01
dc.identifier.citationMohanty, Bijayalaxmi, Majedi, Seyed Mohammad, Pavagadhi, Shruti, Te, Shu Harn, Boo, Chek Yin, Gin, Karina Yew-Hoong, Swarup, Sanjay (2022-05-01). Effects of Light and Temperature on the Metabolic Profiling of Two Habitat-Dependent Bloom-Forming Cyanobacteria. METABOLITES 12 (5). ScholarBank@NUS Repository. https://doi.org/10.3390/metabo12050406
dc.identifier.issn2218-1989
dc.identifier.urihttps://scholarbank.nus.edu.sg/handle/10635/230301
dc.description.abstractRapid proliferation of cyanobacteria in both benthic and suspended (planktonic) habitats is a major threat to environmental safety, as they produce nuisance compounds such as cytotoxins and off-flavors, which degrade the safety and quality of water supplies. Temperature and light ir-radiance are two of the key factors in regulating the occurrence of algal blooms and production of major off-flavors. However, the role of these factors in regulating the growth and metabolism is poorly explored for both benthic and planktonic cyanobacteria. To fill this gap, we studied the effects of light and temperature on the growth and metabolic profiling of both benthic (Hapalosiphon sp. MRB220) and planktonic (Planktothricoides sp. SR001) environmental species collected from a freshwater reservoir in Singapore. Moreover, this study is the first report on the metabolic profiling of cyanobacteria belonging to two different habitats in response to altered environmental condi-tions. The highest growth rate of both species was observed at the highest light intensity (100 μmol photons/m²/s) and at a temperature of 33 °C. Systematic metabolite profiling analysis suggested that temperature had a more profound effect on metabolome of the Hapalosiphon, whereas light had a greater effect in the case of Planktothricoides. Interestingly, Planktothricoides sp. SR001 showed a specialized adaptation mechanism via biosynthesis of arginine, and metabolism of cysteine and methi-onine to survive and withstand higher temperatures of 38 °C and higher. Hence, the mode of strategies for coping with different light and temperature conditions was correlated with the growth and alteration in metabolic activities for physiological and ecological adaptations in both species. In addition, we putatively identified a number of unique metabolites with a broad range of antimicro-bial activities in both species in response to both light and temperature. These metabolites could play a role in the dominant behavior of these species in suppressing competition during bloom formation. Overall, this study elucidated novel insights into the effects of environmental factors on the growth, metabolism, and adaptation strategies of cyanobacteria from two different habitats, and could be useful in controlling their harmful effects on human health and environmental concerns.
dc.language.isoen
dc.publisherMDPI
dc.sourceElements
dc.subjectcyanobacteria
dc.subjectHapalosiphon
dc.subjectPlanktothricoides
dc.subjectlight
dc.subjecttemperature
dc.subjectmetabolomics
dc.typeArticle
dc.date.updated2022-08-13T02:16:55Z
dc.contributor.departmentCIVIL AND ENVIRONMENTAL ENGINEERING
dc.contributor.departmentDEPT OF BIOLOGICAL SCIENCES
dc.contributor.departmentCHEMICAL & BIOMOLECULAR ENGINEERING
dc.contributor.departmentNUS ENVIRONMENTAL RESEARCH INSTITUTE
dc.description.doi10.3390/metabo12050406
dc.description.sourcetitleMETABOLITES
dc.description.volume12
dc.description.issue5
dc.published.statePublished
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