Lesson plan

pathovar

A pathovar is a bacterial strain or set of strains with the same or similar characteristics, that is differentiated at infrasubspecific level from other strains of the same species or subspecies on the basis of distinctive pathogenicity to one or more plant hosts. ) caused by Xanthomonas campestris pv. hederae Pathovars are named as a ternary or quaternary addition to the species binomial name, for example the bacterium that causes citrus canker Xanthomonas axonopodis, has several pathovars with different host ranges, X. axonopodis pv. citri is one of them; the abbreviation 'pv.' means pathovar. The type strains of pathovars are pathotypes, which are distinguished from the types (holotype, neotype, etc.) of the species to which the pathovar belongs. The "Pathovar system" of classification was devised by Doug Dye and John Young at the Plant Diseases Division of the Department of Scientific and Industrial Research in Auckland, New Zealand and published in 1978. It was met with hostility at first, but over time it has become the standard system for naming this group of organisms.

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Article summary

A pathovar is a bacterial strain or set of strains with the same or similar characteristics, that is differentiated at infrasubspecific level from other strains of the same species or subspecies on the basis of distinctive pathogenicity to one or more plant hosts. ) caused by Xanthomonas campestris pv. hederae Pathovars are named as a ternary or quaternary addition to the species binomial name, for example the bacterium that causes citrus canker Xanthomonas axonopodis, has several pathovars with different host ranges, X. axonopodis pv. citri is one of them; the abbreviation 'pv.' means pathovar. The type strains of pathovars are pathotypes, which are distinguished from the types (holotype, neotype, etc.) of the species to which the pathovar belongs. The "Pathovar system" of classification was devised by Doug Dye and John Young at the Plant Diseases Division of the Department of Scientific and Industrial Research in Auckland, New Zealand and published in 1978. It was met with hostility at first, but over time it has become the standard system for naming this group of organisms.

Key claims

  1. publication date: 1978 — 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 publication date is "1978". What evidence would count against this claim?
  3. Which claim in this article is most likely to be revised as the sources update? How would you check its current status?
  4. 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=1360542725

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