Lesson plan

Prochlorococcus

Prochlorococcus is a genus of very small (0.6 μm) marine cyanobacteria with an unusual pigmentation (chlorophyll a2 and b2). These bacteria belong to the photosynthetic picoplankton and are probably the most abundant photosynthetic organism on Earth. Prochlorococcus microbes are among the major primary producers in the ocean, responsible for a large percentage of the photosynthetic production of oxygen. Prochlorococcus strains, called ecotypes, have physiological differences enabling them to exploit different ecological niches. Analysis of the genome sequences of Prochlorococcus strains show that 1,273 genes are common to all strains, and the average genome size is about 2,000 genes. In contrast, eukaryotic algae have over 10,000 genes. The genus and the type species were made validly published names under the ICNP in 2001 with Validation list no. 79. They became valid under the ICNafp in 2020 with the description of Komárek et al.

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Article summary

Prochlorococcus is a genus of very small (0.6 μm) marine cyanobacteria with an unusual pigmentation (chlorophyll a2 and b2). These bacteria belong to the photosynthetic picoplankton and are probably the most abundant photosynthetic organism on Earth. Prochlorococcus microbes are among the major primary producers in the ocean, responsible for a large percentage of the photosynthetic production of oxygen. Prochlorococcus strains, called ecotypes, have physiological differences enabling them to exploit different ecological niches. Analysis of the genome sequences of Prochlorococcus strains show that 1,273 genes are common to all strains, and the average genome size is about 2,000 genes. In contrast, eukaryotic algae have over 10,000 genes. The genus and the type species were made validly published names under the ICNP in 2001 with Validation list no. 79. They became valid under the ICNafp in 2020 with the description of Komárek et al.

Key claims

  1. population: 51 percent — source: Wikipedia · confidence 0.95
  2. publication date: 2001 — source: Wikipedia · confidence 0.95
  3. publication date: 2025 — source: Wikipedia · confidence 0.95

Discussion questions

  1. Summarise the article in your own words. Which single claim would you verify first, and why?
  2. The record states that the population is "51 percent". What evidence would count against this claim?
  3. The record states that the publication date is "2001". What evidence would count against this claim?
  4. The record states that the publication date is "2025". What evidence would count against this claim?
  5. Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
  6. If two sources disagreed about one of these facts, what would you need in order to trust one over the other?

Bibliography

  1. Wikipedia https://en.wikipedia.org/w/index.php?oldid=1378065289

Key claims and bibliography are generated from the same tracked claims and sources as the article page.