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Title: Plant microbiomes harbor potential to promote nutrient turnover in impoverished substrates of a Brazilian biodiversity hotspot

Abstract

The substrates of the Brazilian campos rupestres, a grassland ecosystem, have extremely low concentrations of phosphorus and nitrogen, imposing restrictions to plant growth. Despite that, this ecosystem harbors almost 15% of the Brazilian plant diversity, raising the question of how plants acquire nutrients in such a harsh environment. Here, we set out to uncover the taxonomic profile, the compositional and functional differences and similarities, and the nutrient turnover potential of microbial communities associated with two plant species of the campos rupestres-dominant family Velloziaceae that grow over distinct substrates (soil and rock). Using amplicon sequencing data, we show that, despite the pronounced composition differentiation, the plant-associated soil and rock communities share a core of highly efficient colonizers that tend to be highly abundant and is enriched in 21 bacterial families. Functional investigation of metagenomes and 522 metagenome-assembled genomes revealed that the microorganisms found associated to plant roots are enriched in genes involved in organic compound intake, and phosphorus and nitrogen turnover. We show that potential for phosphorus transport, mineralization, and solubilization are mostly found within bacterial families of the shared microbiome, such as Xanthobacteraceae and Bryobacteraceae. We also detected the full repertoire of nitrogen cycle-related genes and discovered a lineage ofmore » Isosphaeraceae that acquired nitrogen-fixing potential via horizontal gene transfer and might be also involved in nitrification via a metabolic handoff association with Binataceae. We highlight that plant-associated microbial populations in the campos rupestres harbor a genetic repertoire with potential to increase nutrient availability and that the microbiomes of biodiversity hotspots can reveal novel mechanisms of nutrient turnover.« less

Authors:
ORCiD logo [1]; ORCiD logo [2]; ORCiD logo [3]; ORCiD logo [4]; ORCiD logo [4]; ORCiD logo [5]; ORCiD logo [5]; ORCiD logo [5]; ORCiD logo [3]; ORCiD logo [3]
  1. Universidade Estadual de Campinas (UNICAMP) (Brazil); Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
  2. Universidade Estadual de Campinas (UNICAMP) (Brazil); Symbiomics Microbiome Solutions, Florianópolis (Brazil)
  3. Universidade Estadual de Campinas (UNICAMP) (Brazil)
  4. Universidade Estadual de Campinas (UNICAMP) (Brazil); Embrapa Agricultura Digital, Campinas (Brazil)
  5. Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Publication Date:
Research Org.:
Lawrence Berkeley National Laboratory (LBNL), Berkeley, CA (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Biological and Environmental Research (BER)
OSTI Identifier:
1983929
Grant/Contract Number:  
AC02-05CH11231
Resource Type:
Accepted Manuscript
Journal Name:
The ISME Journal
Additional Journal Information:
Journal Volume: 17; Journal Issue: 3; Journal ID: ISSN 1751-7362
Publisher:
Nature Publishing Group
Country of Publication:
United States
Language:
English
Subject:
59 BASIC BIOLOGICAL SCIENCES; Metagenomics; Soil microbiology

Citation Formats

Camargo, Antonio P., de Souza, Rafael S. C., Jose, Juliana, Gerhardt, Isabel R., Dante, Ricardo A., Mukherjee, Supratim, Huntemann, Marcel, Kyrpides, Nikos C., Carazzolle, Marcelo F., and Arruda, Paulo. Plant microbiomes harbor potential to promote nutrient turnover in impoverished substrates of a Brazilian biodiversity hotspot. United States: N. p., 2022. Web. doi:10.1038/s41396-022-01345-1.
Camargo, Antonio P., de Souza, Rafael S. C., Jose, Juliana, Gerhardt, Isabel R., Dante, Ricardo A., Mukherjee, Supratim, Huntemann, Marcel, Kyrpides, Nikos C., Carazzolle, Marcelo F., & Arruda, Paulo. Plant microbiomes harbor potential to promote nutrient turnover in impoverished substrates of a Brazilian biodiversity hotspot. United States. https://doi.org/10.1038/s41396-022-01345-1
Camargo, Antonio P., de Souza, Rafael S. C., Jose, Juliana, Gerhardt, Isabel R., Dante, Ricardo A., Mukherjee, Supratim, Huntemann, Marcel, Kyrpides, Nikos C., Carazzolle, Marcelo F., and Arruda, Paulo. Tue . "Plant microbiomes harbor potential to promote nutrient turnover in impoverished substrates of a Brazilian biodiversity hotspot". United States. https://doi.org/10.1038/s41396-022-01345-1. https://www.osti.gov/servlets/purl/1983929.
@article{osti_1983929,
title = {Plant microbiomes harbor potential to promote nutrient turnover in impoverished substrates of a Brazilian biodiversity hotspot},
author = {Camargo, Antonio P. and de Souza, Rafael S. C. and Jose, Juliana and Gerhardt, Isabel R. and Dante, Ricardo A. and Mukherjee, Supratim and Huntemann, Marcel and Kyrpides, Nikos C. and Carazzolle, Marcelo F. and Arruda, Paulo},
abstractNote = {The substrates of the Brazilian campos rupestres, a grassland ecosystem, have extremely low concentrations of phosphorus and nitrogen, imposing restrictions to plant growth. Despite that, this ecosystem harbors almost 15% of the Brazilian plant diversity, raising the question of how plants acquire nutrients in such a harsh environment. Here, we set out to uncover the taxonomic profile, the compositional and functional differences and similarities, and the nutrient turnover potential of microbial communities associated with two plant species of the campos rupestres-dominant family Velloziaceae that grow over distinct substrates (soil and rock). Using amplicon sequencing data, we show that, despite the pronounced composition differentiation, the plant-associated soil and rock communities share a core of highly efficient colonizers that tend to be highly abundant and is enriched in 21 bacterial families. Functional investigation of metagenomes and 522 metagenome-assembled genomes revealed that the microorganisms found associated to plant roots are enriched in genes involved in organic compound intake, and phosphorus and nitrogen turnover. We show that potential for phosphorus transport, mineralization, and solubilization are mostly found within bacterial families of the shared microbiome, such as Xanthobacteraceae and Bryobacteraceae. We also detected the full repertoire of nitrogen cycle-related genes and discovered a lineage of Isosphaeraceae that acquired nitrogen-fixing potential via horizontal gene transfer and might be also involved in nitrification via a metabolic handoff association with Binataceae. We highlight that plant-associated microbial populations in the campos rupestres harbor a genetic repertoire with potential to increase nutrient availability and that the microbiomes of biodiversity hotspots can reveal novel mechanisms of nutrient turnover.},
doi = {10.1038/s41396-022-01345-1},
journal = {The ISME Journal},
number = 3,
volume = 17,
place = {United States},
year = {Tue Dec 20 00:00:00 EST 2022},
month = {Tue Dec 20 00:00:00 EST 2022}
}

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  • Bolhuis, Henk; Severin, Ina; Confurius-Guns, Veronique
  • The ISME Journal, Vol. 4, Issue 1
  • DOI: 10.1038/ismej.2009.99

Plant–microbiome interactions: from community assembly to plant health
journal, August 2020

  • Trivedi, Pankaj; Leach, Jan E.; Tringe, Susannah G.
  • Nature Reviews Microbiology, Vol. 18, Issue 11
  • DOI: 10.1038/s41579-020-0412-1

IDTAXA: a novel approach for accurate taxonomic classification of microbiome sequences
journal, August 2018


MetaBAT 2: an adaptive binning algorithm for robust and efficient genome reconstruction from metagenome assemblies
journal, January 2019


Nitrogen-fixing populations of Planctomycetes and Proteobacteria are abundant in surface ocean metagenomes
journal, June 2018


Specialized roots of Velloziaceae weather quartzite rock while mobilizing phosphorus using carboxylates
journal, April 2019

  • Teodoro, Grazielle Sales; Lambers, Hans; Nascimento, Diego L.
  • Functional Ecology, Vol. 33, Issue 5
  • DOI: 10.1111/1365-2435.13324

Moderated estimation of fold change and dispersion for RNA-seq data with DESeq2
journal, December 2014


The unseen majority: soil microbes as drivers of plant diversity and productivity in terrestrial ecosystems
journal, March 2008