Phytoremediation, Bioaugmentation, and the Plant Microbiome

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Abstract

Understanding plant biology and related microbial ecology as a means to phytoremediate soil and groundwater contamination has broadened and advanced the field of environmental engineering and science over the past 30 years. Using plants to transform and degrade xenobiotic organic pollutants delivers new methods for environmental restoration. Manipulations of the plant microbiome through bioaugmentation, endophytes, adding various growth factors, genetic modification, and/or selecting the microbial community via insertion of probiotics or phages for gene transfer are future areas of research to further expand this green, cost-effective, aesthetically pleasing technology—phytoremediation.

Abstract

A perspective on phytoremediation, its promise, and how it developed into a powerful green technology for cleaning hazardous waste sites.

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Most cited references 85

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The biomass distribution on Earth

Yinon M. Bar-On, Rob Phillips, Ron Milo (2018)

Significance The composition of the biosphere is a fundamental question in biology, yet a global quantitative account of the biomass of each taxon is still lacking. We assemble a census of the biomass of all kingdoms of life. This analysis provides a holistic view of the composition of the biosphere and allows us to observe broad patterns over taxonomic categories, geographic locations, and trophic modes.

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The genome of black cottonwood, Populus trichocarpa (Torr. & Gray).

G A Tuskan, S Difazio, S. Jansson … (2006)

We report the draft genome of the black cottonwood tree, Populus trichocarpa. Integration of shotgun sequence assembly with genetic mapping enabled chromosome-scale reconstruction of the genome. More than 45,000 putative protein-coding genes were identified. Analysis of the assembled genome revealed a whole-genome duplication event; about 8000 pairs of duplicated genes from that event survived in the Populus genome. A second, older duplication event is indistinguishably coincident with the divergence of the Populus and Arabidopsis lineages. Nucleotide substitution, tandem gene duplication, and gross chromosomal rearrangement appear to proceed substantially more slowly in Populus than in Arabidopsis. Populus has more protein-coding genes than Arabidopsis, ranging on average from 1.4 to 1.6 putative Populus homologs for each Arabidopsis gene. However, the relative frequency of protein domains in the two genomes is similar. Overrepresented exceptions in Populus include genes associated with lignocellulosic wall biosynthesis, meristem development, disease resistance, and metabolite transport.

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A genome-wide transcriptional analysis using Arabidopsis thaliana Affymetrix gene chips determined plant responses to phosphate deprivation.

Julie Misson, Kashchandra Raghothama, Ajay Jain … (2005)

Phosphorus, one of the essential elements for plants, is often a limiting nutrient because of its low availability and mobility in soils. Significant changes in plant morphology and biochemical processes are associated with phosphate (Pi) deficiency. However, the molecular bases of these responses to Pi deficiency are not thoroughly elucidated. Therefore, a comprehensive survey of global gene expression in response to Pi deprivation was done by using Arabidopsis thaliana whole genome Affymetrix gene chip (ATH1) to quantify the spatio-temporal variations in transcript abundance of 22,810 genes. The analysis revealed a coordinated induction and suppression of 612 and 254 Pi-responsive genes, respectively. The functional classification of some of these genes indicated their involvement in various metabolic pathways, ion transport, signal transduction, transcriptional regulation, and other processes related to growth and development. This study is a detailed analysis of Pi starvation-induced changes in gene expression of the entire genome of Arabidopsis correlated with biochemical processes. The results not only enhance our knowledge about molecular processes associated with Pi deficiency, but also facilitate the identification of key molecular determinants for improving Pi use by crop species.

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Author and article information

Journal

Journal ID (nlm-ta): Environ Sci Technol

Journal ID (iso-abbrev): Environ Sci Technol

Journal ID (publisher-id): es

Journal ID (coden): esthag

Title: Environmental Science & Technology

Publisher: American Chemical Society

ISSN (Print): 0013-936X

ISSN (Electronic): 1520-5851

Publication date (Electronic): 18 November 2022

Publication date (Print): 06 December 2022

Volume: 56

Issue: 23

Pages: 16602-16610

Affiliations

[1]Department of Civil and Environmental Engineering, IIHR Hydroscience & Engineering, The University of Iowa , Iowa City, Iowa 52242, United States

Author notes

[* ]Email: Jerald-schnoor@ 123456uiowa.edu .

Author information

Reid A. Simmer https://orcid.org/0000-0002-1264-6867

Jerald L. Schnoor https://orcid.org/0000-0003-3916-8516

Article

DOI: 10.1021/acs.est.2c05970

PMC ID: 9730846

PubMed ID: 36399658

SO-VID: 5edf2637-d666-49d2-8238-48e662929dc6

License:

Permits the broadest form of re-use including for commercial purposes, provided that author attribution and integrity are maintained ( https://creativecommons.org/licenses/by/4.0/).

History

Date received : 17 August 2022

Funding

Funded by: U.S. Department of Defense, doi 10.13039/100000005;

Award ID: ER-2719

Funded by: Center for Global and Regional Environmental Research, University of Iowa, doi 10.13039/100011126;

Award ID: NA

Funded by: U.S. Department of Defense, doi 10.13039/100000005;

Award ID: ER21-5096

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document-id-old-9 es2c05970

document-id-new-14 es2c05970

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ScienceOpen disciplines: General environmental science

Keywords: phytoremediation,bioremediation,bioaugmentation,microbiome,rhizosphere,groundwater

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ScienceOpen disciplines: General environmental science

Keywords: phytoremediation, bioremediation, bioaugmentation, microbiome, rhizosphere, groundwater

Phytoremediation, Bioaugmentation, and the Plant Microbiome

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Tick microbiome

Most cited references 85

The biomass distribution on Earth

The genome of black cottonwood, Populus trichocarpa (Torr. & Gray).

A genome-wide transcriptional analysis using Arabidopsis thaliana Affymetrix gene chips determined plant responses to phosphate deprivation.

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