Field guide · species

Lactobacillus acidophilus

(Moro 1900) Hansen and Mocquot 1970

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The authority credits the formal scientific description of the name. A year records publication of that description.

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Lactobacillus acidophilus is a lactic acid bacterium studied in food and intestinal contexts. Genome work on named strains links carbohydrate use, surface proteins and acid tolerance without making all isolates biologically interchangeable.

Public research profile · final editorial review pending.

Tree of lifeScientific lineage
  1. LifeLife
  2. DomainBacteria
  3. KingdomBacillati
  4. PhylumBacillota
  5. ClassBacilli
  6. OrderLactobacillales
  7. FamilyLactobacillaceae
  8. GenusLactobacillus
  9. SpeciesLactobacillus acidophilus
Advanced classification

Complete source lineage, including intermediate ranks. The standard view uses Life and the eight principal ranks.

  1. cellular organisms cellular root
  2. Bacteria domain
  3. Bacillati kingdom
  4. Bacillota phylum
  5. Bacilli class
  6. Lactobacillales order
  7. Lactobacillaceae family
  8. Lactobacillus genus
  9. Lactobacillus acidophilus species
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Structure and identification

Rod-shaped cells may form chains. Genetic or other validated identification is needed to distinguish related lactobacilli.

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Habitat and range

Host-associated and cultured food environments are important study settings. A laboratory medium is not a complete description of a natural habitat.

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Nutrition and metabolism

Carbohydrates supply energy through fermentation. The NCFM genome includes systems for transport and use of several sugars and peptides.

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Biological activity

Acid production changes the surrounding medium. Surface-associated proteins can influence interaction with host tissues.

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Reproduction and life cycle

Cell division sustains growing populations; changing nutrient and acidity conditions alter growth performance.

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Geographic distribution

Named strains are maintained and used internationally. Culture distribution should not be confused with mapped wild populations.

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Ecological role

The bacterium participates in microbial communities where competition and available substrates shape persistence.

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Distinctive adaptations

The NCFM strain’s genome contains carbohydrate transport systems, peptide-processing machinery and candidate adhesion proteins. These offer testable explanations for nutrient use and interaction with its surroundings. Genomic predictions in one commercial strain do not establish the same properties or a clinical benefit in every isolate carrying the species name.

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Evidence

Sources

Connected life

No reviewed ecological connections in the collection yet.

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