Pythium oligandrum induces growth promotion in starch potato without significantly altering the rhizosphere microbiome

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Andersen, Christian B.Swedish University of Agricultural Sciences,Carlsberg Research Center / Carlsberg Laboratory (författare)

Pythium oligandrum induces growth promotion in starch potato without significantly altering the rhizosphere microbiome

Artikel/kapitelEngelska2024

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2024

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LIBRIS-ID:oai:lup.lub.lu.se:34c3d63e-c982-4b05-a980-999ec164dcfc
https://lup.lub.lu.se/record/34c3d63e-c982-4b05-a980-999ec164dcfcURI
https://doi.org/10.1016/j.apsoil.2024.105423DOI

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Språk:engelska
Sammanfattning på:engelska

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Ämneskategori:ref swepub-contenttype

Anmärkningar

Plant health promoting organisms, including microbial biological control agents, are of increasing importance for the development of more sustainable agriculture. To understand the function of these microbes as biological control agents under field conditions and their overall impact on soil and plant health, we need to learn more about the impact of plant beneficial microbes on the rhizosphere microbiome of crops such as potato. The plant beneficial oomycete Pythium oligandrum has previously been reported both as a biocontrol agent and as a plant growth promoter, or biostimulant, in several crop species. To investigate the potential of P. oligandrum as a biostimulant in potato, we performed a series of controlled-environment bioassays in three cultivars. We showed that biostimulation of potato by P. oligandrum is plant genotype-specific. We confirmed the biostimulation by P. oligandrum in the starch potato cultivar Kuras under field conditions. We further investigated the effects of P. oligandrum on the potato rhizosphere microbiome, sampling individual potato plants at three time points over the growing season (representing the vegetative growth phase, flowering, and the onset of senescence). Metabarcoding using ITS and 16S amplicon sequencing revealed no significant overall effect of P. oligandrum application on the bacterial and fungal rhizosphere communities. However, some genera were significantly differentially abundant after P. oligandrum application, including some classified as plant-beneficial microbes. We conclude that P. oligandrum has a cultivar-dependent growth-promoting effect in potato and only minor effects on the rhizosphere microbiome.

Ämnesord och genrebeteckningar

LANTBRUKSVETENSKAPER Lantbruksvetenskap, skogsbruk och fiske Jordbruksvetenskap hsv//swe
AGRICULTURAL SCIENCES Agriculture, Forestry and Fisheries Agricultural Science hsv//eng
NATURVETENSKAP Biologi Mikrobiologi hsv//swe
NATURAL SCIENCES Biological Sciences Microbiology hsv//eng
BCA
Biostimulation
Metabarcoding
Microbial community
Oomycete
Solanum tuberosum

Biuppslag (personer, institutioner, konferenser, titlar ...)

Aleklett, KristinSwedish University of Agricultural Sciences,Lund University,Lunds universitet,BECC: Biodiversity and Ecosystem services in a Changing Climate,Centrum för miljö- och klimatvetenskap (CEC),Naturvetenskapliga fakulteten,Funktionell ekologi,Avdelningar vid Biologiska institutionen,Biologiska institutionen,Centre for Environmental and Climate Science (CEC),Faculty of Science,Functional ecology,Sections at the Department of Biology,Department of Biology(Swepub:lu)kr1346al (författare)
Digdarshika, GarimaSwedish University of Agricultural Sciences (författare)
Lankinen, ÅsaSwedish University of Agricultural Sciences (författare)
Grenville-Briggs, Laura J.Swedish University of Agricultural Sciences (författare)
Swedish University of Agricultural SciencesCarlsberg Research Center / Carlsberg Laboratory (creator_code:org_t)

Sammanhörande titlar

Ingår i:Applied Soil Ecology1990929-1393

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Av författaren/redakt...: Andersen, Christ ...; Aleklett, Kristi ...; Digdarshika, Gar ...; Lankinen, Åsa; Grenville-Briggs ...

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LANTBRUKSVETENSKAPER: LANTBRUKSVETENSK ...; och Lantbruksvetensk ...; och Jordbruksvetensk ...

NATURVETENSKAP: NATURVETENSKAP; och Biologi; och Mikrobiologi

Artiklar i publikationen: Applied Soil Eco ...

Av lärosätet: Lunds universitet

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