摘要
Microorganisms in natural environments are crucial in maintaining the material and energy cycle and the ecological balance of the environment.However,it is challenging to delineate environmental microbes'actual metabolic pathways and intraspecific heterogeneity because most microorganisms cannot be cultivated.Raman spectroscopy is a culture-independent technique that can collect molecular vibration profiles from cells.It can reveal the physiological and biochemical information at the single-cell level rapidly and non-destructively in situ.The first part of this review introduces the principles,advantages,progress,and analytical methods of Raman spectroscopy applied in environmental microbiology.The second part summarizes the applications of Raman spectroscopy combined with stable isotope probing(SIP),fluorescence in situ hybridization(FISH),Raman-activated cell sorting and genomic sequencing,and machine learning in microbiological studies.Finally,this review discusses expectations of Raman spectroscopy and future advances to be made in identifying microorganisms,especially for uncultured microorganisms.
基金
This work was financially supported by the Southern Marine Science and Engineering Guangdong Laboratory(Guangzhou)(No.K19313901)
the National Natural Science Foundation of China(91851210,42141003)
the State Key R&D project of China grant(No.2018YFA0605800)
the Stable Support Plan Program of Shenzhen Natural Science Fund(20200925173954005)
the Guangdong-Shenzhen Joint Fund(2021B1515120080)
the Shenzhen Key Laboratory of Marine Archaea Geo-Omics,Southern University of Science and Technology(ZDSYS201802081843490)
the financial support from China Postdoctoral Science Foundation(2020M682769).
