Evidence map›Paper›PMID 9501425›Full record

ArticleApplied and environmental microbiology1998

The citrate transport system of Lactococcus lactis subsp. lactis biovar diacetylactis is induced by acid stress.

N García-Quintáns, C Magni, D de Mendoza, P López

Abstract read
In one paragraph

Article in Applied and environmental microbiology, 1998. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 34 papers.

0numbers the graph read from it
0cells of the map it votes in
34citing papers in PubMed
–field-weighted citation impact
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

34 citing papers in PubMed.

  1. Article
  2. Review
  3. Article
  4. Article
  5. Article
  6. Comparative Genome Analysis ofFrontiers in microbiology · 2019
    Article
  7. Article
  8. Article
  9. Mapping the Physiological Response ofFrontiers in microbiology · 2018
    Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Review
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

4 authors.

N García-QuintánsCentro de Investigaciones Biológicas, Consejo Superior de Investigaciones Científicas, Madrid, Spain.
C Magni
D de Mendoza
P López

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Citrate transport in Lactococcus lactis subsp. lactis biovar diacetylactis is catalyzed by citrate permease P (CitP), which is encoded by the plasmidic citP gene. We have shown previously that citP is included in the citQRP operon, which is mainly transcribed from the P1 promoter in L. lactis subsp. lactis biovar diacetylactis. furthermore, transcription of citQRP and citrate transport are not induced by the presence of citrate in the growth medium. In this work, we analyzed the influence of the extracellular pH on the expression of citP. The citrate transport system is induced by natural acidification of the medium during cell growth and by a shift to media buffered at acidic pHs. This inducible response to acid stress takes place at the transcriptional level and seems to be due to increased utilization of the P1 promoter. Increased transcription correlates with increased synthesis of CitP and results in higher citrate transport activity catalyzed by the cells. Finally, this acid stress response seems to provide L. lactis subsp. lactis biovar diacetylactis with a selective advantage resulting from cometabolism of glucose and citrate at low pHs.

Indexed as

Bacterial ProteinsBiological TransportCarrier ProteinsCitric AcidGlucoseHydrogen-Ion ConcentrationLactococcus lactisOperonSymportersTranscription, GeneticBacterial ProteinsCarrier ProteinsCitP protein, LactobacillalesCitric AcidGlucoseSymporters

Identifiers

PMID9501425
PMCPMC106337

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

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.