# Potato dextrose agar

> microbial growth medium

**Wikidata**: [Q3116840](https://www.wikidata.org/wiki/Q3116840)  
**Wikipedia**: [English](https://en.wikipedia.org/wiki/Potato_dextrose_agar)  
**Source**: https://4ort.xyz/entity/potato-dextrose-agar

## Summary
Potato dextrose agar (PDA) is a microbial growth medium used to support the growth of microorganisms or cells. It is classified as a growth medium and is documented across multiple language Wikipedias and media repositories.

## Key Facts
- Potato dextrose agar is an instance of the class "growth medium" (a liquid or gel used for the growth of microorganisms or cells).  
- The Wikidata description for Potato dextrose agar is "microbial growth medium."  
- Wikipedia title: "Potato dextrose agar."  
- Sitelink count (Wikidata): 12.  
- Listed Wikipedia/Commons language entries include: ar, commons, de, en, es, fr, id, ja, ko, ml.  
- Commons category: Potato dextrose agar.  
- Aliases: PDA培地; أَغارُ البَطاطِسِ بالدِّكْسْتْروز; 감자배지; 감자한천배지; 감자추출배지.  
- Freebase ID: /m/0693mg (reference publication_date: 2013-10-28; reference P248: Q15241312).  
- Microsoft Academic ID (discontinued): 2778138406.

## FAQs
### Q: What is Potato dextrose agar?
A: Potato dextrose agar (PDA) is a microbial growth medium. It belongs to the class of growth media, which are liquids or gels used to grow microorganisms or cells.

### Q: What other names does Potato dextrose agar have?
A: Potato dextrose agar is known by several aliases in other languages and scripts, including PDA培地, أَغارُ البَطاطِسِ بالدِّكْسْتْروز, 감자배지, 감자한천배지, and 감자추출배지.

### Q: Where can I find authoritative entries about Potato dextrose agar?
A: Potato dextrose agar is documented on Wikipedia (title: "Potato dextrose agar") and on Wikimedia Commons (category: Potato dextrose agar). Wikidata lists it with a sitelink count of 12 and provides identifiers such as Freebase /m/0693mg.

## Why It Matters
Potato dextrose agar matters because it is a defined instance of the broad category of growth media, which are essential tools in microbiology and cell biology for cultivating microorganisms and cells. As a recognized microbial growth medium, PDA provides a standardized substrate that enables observation, isolation, and experimental manipulation of microbial cultures. Its presence in multiple language Wikipedias and on Wikimedia Commons indicates that it is a topic of international documentation and interest. The existence of persistent identifiers (Freebase ID and a Microsoft Academic ID, albeit discontinued) and a Wikidata entry with a sitelink count of 12 supports discoverability and integration into data systems used by researchers, educators, and curators. In short, PDA represents a reproducible, documented medium that plays a role in laboratory workflows where cultivation of microorganisms or cells is required, and its multilingual coverage aids global accessibility of information about the medium.

## Notable For
- Being explicitly classified as an instance of the growth medium class on Wikidata.  
- Multilingual documentation, with Wikipedia/Commons entries across at least ten language codes and a Commons category.  
- Presence in linked-data systems through a Freebase identifier (/m/0693mg) with a recorded reference date (2013-10-28).  
- A Wikidata sitelink count of 12, indicating multiple linked resources across Wikimedia projects.

## Body
### Identity and classification
- Name: Potato dextrose agar.  
- Wikidata description: "microbial growth medium."  
- Instance of: growth medium (growth media are liquids or gels used for the growth of microorganisms or cells).

### Aliases and language coverage
- Known aliases: PDA培地; أَغارُ البَطاطِسِ بالدِّكْسْتْروز; 감자배지; 감자한천배지; 감자추출배지.  
- Documented Wikimedia language entries: ar, commons, de, en, es, fr, id, ja, ko, ml.

### Identifiers and references
- Freebase ID: /m/0693mg.  
  - Reference metadata: P248: Q15241312; publication_date: 2013-10-28.  
- Microsoft Academic ID (discontinued): 2778138406.  
- Wikidata sitelink count: 12.

### Repository and documentation presence
- Wikipedia title: Potato dextrose agar.  
- Commons category: Potato dextrose agar.  
- The entity is linked across Wikimedia projects as indicated by the sitelink count and language entries.

### Related class
- Related entity: growth medium (class).  
  - Definition: liquid or gel used for the growth of microorganisms or cells.  
  - Related class sitelink count: 34.

## References

1. Freebase Data Dumps. 2013
2. [OpenAlex](https://docs.openalex.org/download-snapshot/snapshot-data-format)