Evidence map›Paper›PMID 31514746›Full record

ArticleMicrobial cell factories2019

Adaptational changes in physiological and transcriptional responses of Bifidobacterium longum involved in acid stress resistance after successive batch cultures.

Yanxia Wei, Jing Gao, Dianbin Liu, Yang Li, Wenli Liu

Open access · goldAbstract read
In one paragraph

Article in Microbial cell factories, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
2.8field-weighted citation impact, top 10% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

20 citing papers in PubMed, 35 citations in OpenAlex.

  1. Review
  2. Review
  3. Aromatic lactic acid production byApplied and environmental microbiology · 2026
    Article
  4. Review
  5. Review
  6. Probiotic Development Strategy Centered on Stability and Regulatory Considerations.Comprehensive reviews in food science and food safety · 2026
    Review
  7. Insights into toxin-antitoxin systems in the genusApplied and environmental microbiology · 2025
    Review
  8. Article
  9. Review
  10. Article
  11. Frontiers in microbiology · 2024
    Review
  12. Article
  13. Stress Response in Bifidobacteria.Microbiology and molecular biology reviews : MMBR · 2022
    Review
  14. Article
  15. Article
  16. Article
  17. Review
  18. Review
  19. Changes in Cell Membrane Fatty Acid Composition ofJournal of microbiology and biotechnology · 2020
    Article
  20. Gene Networks Underlying the Resistance ofFrontiers in immunology · 2020
    Article
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

5 authors at 1 institution in 1 country.

Yanxia WeiJiangsu Key Laboratory of Immunity and Metabolism, Laboratory of Infection and Immunity, Department of Pathogenic Biology and Immunology/School of Stomatology, Xuzhou Medical University, Xuzhou, 22104, Jiangsu, China. weiyx2007@aliyun.com.
Jing GaoJiangsu Key Laboratory of Immunity and Metabolism, Laboratory of Infection and Immunity, Department of Pathogenic Biology and Immunology/School of Stomatology, Xuzhou Medical University, Xuzhou, 22104, Jiangsu, China.
Dianbin LiuJiangsu Key Laboratory of Immunity and Metabolism, Laboratory of Infection and Immunity, Department of Pathogenic Biology and Immunology/School of Stomatology, Xuzhou Medical University, Xuzhou, 22104, Jiangsu, China.
Yang LiJiangsu Key Laboratory of Immunity and Metabolism, Laboratory of Infection and Immunity, Department of Pathogenic Biology and Immunology/School of Stomatology, Xuzhou Medical University, Xuzhou, 22104, Jiangsu, China.
Wenli LiuJiangsu Key Laboratory of Immunity and Metabolism, Laboratory of Infection and Immunity, Department of Pathogenic Biology and Immunology/School of Stomatology, Xuzhou Medical University, Xuzhou, 22104, Jiangsu, China.
Xuzhou Medical College · CN

Funding

National Natural Science Foundation of China 31300029the Natural Science Foundation of Jiangsu Province BK20130213the Scientific Research Foundation of Xuzhou Medical University 2015KJ06
6 · The paper itself

Abstract

Bifidobacterium inhabiting the human and animal intestinal tract is known for its health-promoting effect. Tolerance to acid stress is crucial for bifidobacteria to survive and then exert their beneficial effects in the gut. A long-term adaptation in successive batch cultures was used as evolutionary engineering strategy to improve acid stress tolerance in an industrial probiotic strain, B. longum JDM301. Its derivative, JDM301AR showed higher resistance to several stress conditions, including acid stress than the parental strain, JDM301. To better understand bifidobacterial acid stress response, the changes of fatty acid (FA) in cell membrane of these two strains were determined. A shift in the production of FA in cell membrane, characterized by increased C14:0 was found, when JDM301AR was exposed to low-pH environment. It was implied that the increased production of C14:0 is associated with the acquisition of acid-tolerant phenotype for JDM301AR. High-throughput RNA-sequencing was performed to analyze the changes of gene expression profile after acid-exposure. The transcriptional profiles of JDM301AR and JDM301 under normal condition and acid stress were compared to reveal the different acid response between them. A total of 5 genes involved in FA metabolism were upregulated and no downregulated genes were found in response to acid stress in JDM301AR. The up-regulated BLJ_0565 and BLJ_1105 may play important roles in the modification of membrane FA composition of JDM301AR after acid exposure. Overall, these results suggested that successive batch cultures induced the acid stress tolerance of B. longum involved in transcriptional and physiological responses, including modification of cell wall and cell membrane, metabolism of amino acid and neutralization of internal pH by strengthening NH

Indexed as

Adaptation, PhysiologicalBatch Cell Culture TechniquesProbioticsStress, PhysiologicalAcidsBifidobacterium longumCell MembraneFatty AcidsHydrogen-Ion ConcentrationTranscription, GeneticAcidsFatty AcidsAcid stressAdaptive evolutionBifidobacteriaCross-protectionFatty acid

Identifiers

PMID31514746
PMCPMC6743126
OpenAlexW2972657207

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.