Pulse Brain · Growing Health Evidence Index
Tier 3 — Observational / field trialPeer-reviewed

Endophytes from blueberry (Vaccinium sp.) fruit: Characterization of yeast and bacteria via label-free surface-enhanced Raman spectroscopy (SERS)

Dorotėja Vaitiekūnaitė, Ingrida Bružaitė, Valentinas J. Snitka

Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy · 2022

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Summary

This pilot study isolated twelve endophytic strains from blueberry fruit and applied label-free surface-enhanced Raman spectroscopy (SERS) to characterize their molecular composition. The work represents the first report of SERS spectra for Leuconostoc mesenteroides and Candida santamariae, and the first isolation of Candida yeast specifically from blueberry fruit. The authors demonstrate that SERS combined with multivariate statistical analysis can reliably differentiate between microbial strains, suggesting potential utility for streamlining screening of biofertilizers and biocontrol agents.

Regional applicability

The study is a methods development paper with no specified geographic location. The findings on spectroscopic differentiation of endophytic microbes would be transferable to blueberry cultivation anywhere, though practical application to UK berry production would require validation with cultivars and conditions locally relevant to commercial UK horticulture.

Key measures

Surface-enhanced Raman spectroscopy (SERS) spectra; principal component analysis; discriminant function analysis; microbial strain differentiation and chemotype classification

Outcomes reported

Twelve endophytic strains were isolated from blueberry fruit and characterized using label-free surface-enhanced Raman spectroscopy (SERS), with genotypes identified as Staphylococcus hominis, Staphylococcus cohnii, Salmonella enterica, Leuconostoc mesenteroides, and Candida santamariae. SERS spectra were successfully differentiated between microbial strains using principal component and discriminant function analyses, demonstrating the technique's capacity to distinguish chemotypes within plant-associated microbial communities.

Theme
Measurement & metrics
Subject
Measurement methods & nutrient profiling
Study type
Research
Study design
Laboratory experiment
Source type
Peer-reviewed study
Status
Published
System type
Horticulture
DOI
10.1016/j.saa.2022.121158
Catalogue ID
SNmvvx56wr-llo7ga

Topic tags

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