11 Responses to Powdery Mildew Survey

  1. Pingback: First survey samples received! | Culham Research Group

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  4. VP says:

    Hello! This is a very timely find as I’ve blogged about powdery mildew on my Verbena bonariensis today. Expect a sample bag from me shortly 🙂

    It’s been really interesting to read about your project, which raises loads of questions in my mind. Does each mildew species have a certain geographical range? Are they specific to certain host(s) – their immense diversity suggests this might be so? Are there new species to discover out there? It’ll be interesting to see if your research answers these questions – unless you have the answer(s) already 🙂

    • Oliver Ellingham says:

      Aha! Veg plotting hey?! Looks like an interesting and informative blog.
      Thanks for the sample.
      I will try to answer your questions and maybe there’ll be a more detailed blog coming in future 😉
      The PM species do have specific geo origins and host specificity. However with increased trade in plants and their virulence genes PMs are constantly expanding their geographical and host ranges.
      Some species are very host specific, such as the formae speciales on cereals infecting just a single host species, others infect single genera or tribes of plants, while others are polyphagous (infecting a wide range of host plants).
      There are ca. 10x more rust species described than PMs, yet there are few ‘New Disease Reports’ of the rusts… In comparison these NDRs are common for PMs. Therefore there are certainly new species to discover, as well as current PM species to be found on new hosts, and in new regions.
      There is much more to say about each of your questions… sorry. I will keep an eye on your blog, and thanks for the extra publicity, Oli

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