Bacterial community composition of vermicompost-treated tomato rhizospheres.

Vermicompost application has been shown to promote plant growth, alter the rhizosphere microbiome, and suppress plant pathogens. These beneficial properties are often attributed to the activity of vermicompost-associated microorganisms. However, little is known about the microbial shifts that occur...

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Main Authors: Juana Munoz-Ucros, Kevin Panke-Buisse, Jamison Robe
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2020-01-01
Series:PLoS ONE
Online Access:https://doi.org/10.1371/journal.pone.0230577
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author Juana Munoz-Ucros
Kevin Panke-Buisse
Jamison Robe
author_facet Juana Munoz-Ucros
Kevin Panke-Buisse
Jamison Robe
author_sort Juana Munoz-Ucros
collection DOAJ
description Vermicompost application has been shown to promote plant growth, alter the rhizosphere microbiome, and suppress plant pathogens. These beneficial properties are often attributed to the activity of vermicompost-associated microorganisms. However, little is known about the microbial shifts that occur in the rhizosphere after vermicompost application. To better understand the impact of vermicompost treatments on the assembly of rhizosphere bacterial communities, 16S rDNA communities of vermicompost and rhizospheres of each peat- and soil-grown tomatoes were profiled after conventional fertigation, irrigation without additional nutrients, and addition of three different vermicompost-extracts. The full dataset consisted of 412 identified genera, of which 317 remained following stringent quality filtration. Tomato rhizosphere microbiome responses to treatments were complex and unique between peat and soil growth substrates. Direct colonization of vermicompost-origin taxa into rhizospheres was limited, with genera Photobacterium and Luteimonas colonizing peat rhizospheres, genera Truepera, Phenylobacterium, and Lysinibacillus colonizing soil rhizospheres, and genus Pelagibius appearing in both soil and peat rhizospheres. Further patterns of differential abundance and presence/absence between treatments highlight vermicompost-mediated effects on rhizosphere microbiome assembly as an interplay of rhizosphere medium, direct colonization of vermicompost-origin taxa and vermicompost-induced shifts in the rhizosphere microbial community. This exploratory analysis is intended to provide an initial look at 16S community composition of vermicompost and the effects of vermicompost treatment on the rhizosphere microbiome assembly to highlight interactions of potential merit for subsequent investigations.
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spelling doaj.art-1d3172d664d5451e80a3c4b4da8dc4842022-12-21T19:29:52ZengPublic Library of Science (PLoS)PLoS ONE1932-62032020-01-01154e023057710.1371/journal.pone.0230577Bacterial community composition of vermicompost-treated tomato rhizospheres.Juana Munoz-UcrosKevin Panke-BuisseJamison RobeVermicompost application has been shown to promote plant growth, alter the rhizosphere microbiome, and suppress plant pathogens. These beneficial properties are often attributed to the activity of vermicompost-associated microorganisms. However, little is known about the microbial shifts that occur in the rhizosphere after vermicompost application. To better understand the impact of vermicompost treatments on the assembly of rhizosphere bacterial communities, 16S rDNA communities of vermicompost and rhizospheres of each peat- and soil-grown tomatoes were profiled after conventional fertigation, irrigation without additional nutrients, and addition of three different vermicompost-extracts. The full dataset consisted of 412 identified genera, of which 317 remained following stringent quality filtration. Tomato rhizosphere microbiome responses to treatments were complex and unique between peat and soil growth substrates. Direct colonization of vermicompost-origin taxa into rhizospheres was limited, with genera Photobacterium and Luteimonas colonizing peat rhizospheres, genera Truepera, Phenylobacterium, and Lysinibacillus colonizing soil rhizospheres, and genus Pelagibius appearing in both soil and peat rhizospheres. Further patterns of differential abundance and presence/absence between treatments highlight vermicompost-mediated effects on rhizosphere microbiome assembly as an interplay of rhizosphere medium, direct colonization of vermicompost-origin taxa and vermicompost-induced shifts in the rhizosphere microbial community. This exploratory analysis is intended to provide an initial look at 16S community composition of vermicompost and the effects of vermicompost treatment on the rhizosphere microbiome assembly to highlight interactions of potential merit for subsequent investigations.https://doi.org/10.1371/journal.pone.0230577
spellingShingle Juana Munoz-Ucros
Kevin Panke-Buisse
Jamison Robe
Bacterial community composition of vermicompost-treated tomato rhizospheres.
PLoS ONE
title Bacterial community composition of vermicompost-treated tomato rhizospheres.
title_full Bacterial community composition of vermicompost-treated tomato rhizospheres.
title_fullStr Bacterial community composition of vermicompost-treated tomato rhizospheres.
title_full_unstemmed Bacterial community composition of vermicompost-treated tomato rhizospheres.
title_short Bacterial community composition of vermicompost-treated tomato rhizospheres.
title_sort bacterial community composition of vermicompost treated tomato rhizospheres
url https://doi.org/10.1371/journal.pone.0230577
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