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Protists in the Plant Microbiome: An Untapped Field of Research

Protocol
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Part of the Methods in Molecular Biology book series (MIMB, volume 2232)

Abstract

Protists are mostly unicellular eukaryotes. Some protists are beneficial for plants, while others live as endosymbionts and can cause severe plant diseases. More detailed studies on plant-protist interactions exist only for plant pathogens and parasites. A number of protists live as inconspicuous endophytes and cause no visible disease symptoms, while others appear closely associated with the rhizosphere or phyllosphere of plants, but we still have only a vague understanding on their identities and functions. Here, we provide a protocol on how to assess the plant-associated protist community via Illumina-sequencing of ribosomal marker-amplicons and describe how to assign taxonomic affiliation to the obtained sequences.

Key words

18S amplicon sequencing PR2 database Oomycota Cercozoa Soil microbial loop Illumina sequencing High-throughput sequencing 

References

  1. 1.
    Schwelm A, Badstöber J, Bulman S et al (2018) Not in your usual Top 10: protists that infect plants and algae. Mol Plant Pathol 19:1029–1044CrossRefPubMedGoogle Scholar
  2. 2.
    Guillou L, Bachar D, Audic S et al (2013) The Protist Ribosomal Reference database (PR2): a catalog of unicellular eukaryote Small Sub-Unit rRNA sequences with curated taxonomy. Nucleic Acids Res 41:597–604CrossRefGoogle Scholar
  3. 3.
    del Campo J, Kolisko M, Boscaro V et al (2018) EukRef: phylogenetic curation of ribosomal RNA to enhance understanding of eukaryotic diversity and distribution. PLoS Biol 16:e2005849CrossRefPubMedPubMedCentralGoogle Scholar
  4. 4.
    Sapp M, Ploch S, Fiore-Donno AM et al (2017) Protists are an integral part of the Arabidopsis thaliana microbiome. Environ Microbiol 20:30–43CrossRefPubMedGoogle Scholar
  5. 5.
    Flues S, Blokker M, Dumack K et al (2018) Diversity of cercomonad species in the phyllosphere and rhizosphere of different plant species with a description of Neocercomonas epiphylla (Cercozoa, Rhizaria ) a leaf-associated protist. J Eukaryot Microbiol 65:587–599CrossRefPubMedGoogle Scholar
  6. 6.
    Dumack K, Flues S, Hermanns K et al (2017) Rhogostomidae (Cercozoa) from soils, roots and plant leaves (Arabidopsis thaliana): description of Rhogostoma epiphylla sp. nov. and R. cylindrica sp. nov. Eur J Protistol 60:76–86CrossRefPubMedGoogle Scholar
  7. 7.
    Ploch S, Rose LE, Bass D et al (2016) High diversity revealed in leaf-associated protists (Rhizaria: Cercozoa) of Brassicaceae. J Eukaryot Microbiol 63:635–641CrossRefPubMedPubMedCentralGoogle Scholar
  8. 8.
    Fiore-Donno AM, Richter-Heitmann T, Degrune F, Dumack K et al (2019) Functional traits and spatio-temporal structure of a major group of soil protists (Rhizaria: Cercozoa) in a temperate grassland. Front Microbiol 10:1–12CrossRefGoogle Scholar
  9. 9.
    Kemen AC, Agler MT, Kemen E (2015) Host–microbe and microbe–microbe interactions in the evolution of obligate plant parasitism. New Phytol 206:1207–1228CrossRefPubMedGoogle Scholar
  10. 10.
    Fawke S, Doumane M, Schornack S (2015) Oomycete interactions with plants: infection strategies and resistance principles. Microbiol Mol Biol Rev 79:263–280CrossRefPubMedPubMedCentralGoogle Scholar
  11. 11.
    Aist R, Williams PH (1971) The cytology and kinetics of cabbage root hair penetration by Plasmodiophora brassicae. Can J Bot 49:2023–2034CrossRefGoogle Scholar
  12. 12.
    Flues S, Bass D, Bonkowski M (2017) Grazing of leaf-associated Cercomonads (Protists: Rhizaria: Cercozoa) structures bacterial community composition and function. Environ Microbiol 19:3297–3309CrossRefPubMedGoogle Scholar
  13. 13.
    Dumack K, Fiore-Donno AM, Bass D et al (2019) Making sense of environmental sequencing data: ecologically important functional traits of the protistan groups Cercozoa and Endomyxa (Rhizaria). Mol Ecol Resour 20:1–6Google Scholar
  14. 14.
    Lentendu G, Wubet T, Chatzinotas A et al (2014) Effects of long-term differential fertilization on eukaryotic microbial communities in an arable soil: a multiple barcoding approach. Mol Ecol 23:3341–3355CrossRefPubMedGoogle Scholar
  15. 15.
    Fiore-Donno AM, Weinert J, Wubet T et al (2016) Metacommunity analysis of amoeboid protists in grassland soils. Sci Rep 6:19068CrossRefPubMedPubMedCentralGoogle Scholar
  16. 16.
    Geisen S, Tveit AT, Clark IM et al (2015) Metatranscriptomic census of active protists in soils. ISME J 9:2178–2190CrossRefPubMedPubMedCentralGoogle Scholar
  17. 17.
    Venter PC, Nitsche F, Domonell A et al (2017) The Protistan microbiome of grassland soil : diversity in the mesoscale. Protist 168:546–564CrossRefPubMedGoogle Scholar
  18. 18.
    Schloss PD, Westcott SL, Ryabin T et al (2009) Introducing mothur: open-source, platform-independent, community-supported software for describing and comparing microbial communities. Appl Environ Microbiol 75:7537–7541CrossRefPubMedPubMedCentralGoogle Scholar
  19. 19.
    Oksanen J, Blanchet FG, Kindt R et al (2014) Vegan: community ecology package. R Package Version 2.2-0. https://github.com/vegandevs/vegan
  20. 20.
    Ovaskainen O, Tikhonov G, Norberg A et al (2017) How to make more out of community data? A conceptual framework and its implementation as models and software. Ecol Lett 20:561–576CrossRefPubMedGoogle Scholar
  21. 21.
    Dunthorn M, Stoeck T, Clamp J et al (2014) Ciliates and the rare biosphere: a review. J Eukaryot Microbiol 61:404–409CrossRefPubMedGoogle Scholar
  22. 22.
    Jousset A, Bienhold C, Chatzinotas A et al (2017) Where less may be more: how the rare biosphere pulls ecosystems strings. ISME J 11:853–862CrossRefPubMedPubMedCentralGoogle Scholar
  23. 23.
    Fiore-Donno AM, Rixen C, Rippin M et al (2018) New barcoded primers for efficient retrieval of cercozoan sequences in high-throughput environmental diversity surveys, with emphasis on worldwide biological soil crusts. Mol Ecol Resour 18(2):1–11CrossRefGoogle Scholar

Copyright information

© Springer Science+Business Media, LLC, part of Springer Nature 2021

Authors and Affiliations

  1. 1.Cluster of Excellence on Plant Sciences (CEPLAS), Terrestrial Ecology Group, Institute of ZoologyUniversity of CologneKölnGermany

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