ArticleApplied and environmental microbiology2004
Evaluation of structural changes induced by high hydrostatic pressure in Leuconostoc mesenteroides.
Article in Applied and environmental microbiology, 2004. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed, 58 citations in OpenAlex.
- Biomolecules involved in the metabolism of Escherichia coli affected by photodynamics: A calorimetry study.PloS one · 2026Article
- Influence of pressurization rate and mode on cell damage ofFrontiers in microbiology · 2023Article
- Comparison of Thermal and High-Pressure Gelation of Potato Protein Isolates.Foods (Basel, Switzerland) · 2020Article
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- Effects of high hydrostatic pressure on Escherichia coli ultrastructure, membrane integrity and molecular composition as assessed by FTIR spectroscopy and microscopic imaging techniques.Molecules (Basel, Switzerland) · 2014Article
- Isolation of a Paenibacillus sp. strain and structural elucidation of its broad-spectrum lipopeptide antibiotic.Applied and environmental microbiology · 2012Article
- Damage in Escherichia coli cells treated with a combination of high hydrostatic pressure and subzero temperature.Applied and environmental microbiology · 2007Article
- Isolation and identification of a Paenibacillus polymyxa strain that coproduces a novel lantibiotic and polymyxin.Applied and environmental microbiology · 2007Article
- Bacterial outer membrane and cell wall penetration and cell destruction by polluting chemical agents and physical conditions.Science progress · 2003Review
Corrections and comments
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Authors and funding
4 authors at 2 institutions in 2 countries.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Scanning electron microcopy (SEM), transmission electron microscopy (TEM), and differential scanning calorimetry (DSC) were used to evaluate structural changes in Leuconostoc mesenteroides cells as a function of high-hydrostatic-pressure treatment. This bacterium usually grows in chains of cells, which were increasingly dechained at elevated pressures. High-pressure treatments at 250 and 500 MPa also caused changes in the external surface and internal structure of cells. Dechaining and blister formation on the surface of cells increased with pressure, as observed in SEM micrographs. TEM studies showed that cytoplasmic components of the cells were affected by high-pressure treatment. DSC studies of whole cells showed increasing denaturation of ribosomes with pressure, in keeping with dense compacted regions in the cytoplasm of pressure-treated cells observed in TEM micrographs. Apparent reduction of intact ribosomes observed in DSC thermograms was related to the reduction in number of viable cells. The results indicate that inactivation of L. mesenteroides cells is mainly due to ribosomal denaturation observed as a reduction of the corresponding peak in DSC thermograms and condensed interior regions of cytoplasm in TEM micrographs.
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