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Chlorella vulgaris and Its Phycosphere in Wastewater: Microalgae-Bacteria Interactions During Nutrient Removal

Microalgae-based bioenergy production is a promising field with regard to the wide variety of algal species and metabolic potential. The use of liquid wastes as nutrient clearly improves the sustainability of microalgal biofuel production. Microalgae and bacteria have an ecological inter-kingdom rel...

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Autores principales: Wirth, Roland, Pap, Bernadett, Böjti, Tamás, Shetty, Prateek, Lakatos, Gergely, Bagi, Zoltán, Kovács, Kornél L., Maróti, Gergely
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Frontiers Media S.A. 2020
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7537789/
https://www.ncbi.nlm.nih.gov/pubmed/33072721
http://dx.doi.org/10.3389/fbioe.2020.557572
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author Wirth, Roland
Pap, Bernadett
Böjti, Tamás
Shetty, Prateek
Lakatos, Gergely
Bagi, Zoltán
Kovács, Kornél L.
Maróti, Gergely
author_facet Wirth, Roland
Pap, Bernadett
Böjti, Tamás
Shetty, Prateek
Lakatos, Gergely
Bagi, Zoltán
Kovács, Kornél L.
Maróti, Gergely
author_sort Wirth, Roland
collection PubMed
description Microalgae-based bioenergy production is a promising field with regard to the wide variety of algal species and metabolic potential. The use of liquid wastes as nutrient clearly improves the sustainability of microalgal biofuel production. Microalgae and bacteria have an ecological inter-kingdom relationship. This microenvironment called phycosphere has a major role in the ecosystem productivity and can be utilized both in bioremediation and biomass production. However, knowledge on the effects of indigenous bacteria on microalgal growth and the characteristics of bacterial communities associated with microalgae are limited. In this study municipal, industrial and agricultural liquid waste derivatives were used as cultivation media. Chlorella vulgaris green microalgae and its bacterial partners efficiently metabolized the carbon, nitrogen and phosphorous content available in these wastes. The read-based metagenomics approach revealed a diverse microbial composition at the start point of cultivations in the different types of liquid wastes. The relative abundance of the observed taxa significantly changed over the cultivation period. The genome-centric reconstruction of phycospheric bacteria further explained the observed correlations between the taxonomic composition and biomass yield of the various waste-based biodegradation systems. Functional profile investigation of the reconstructed microbes revealed a variety of relevant biological processes like organic acid oxidation and vitamin B synthesis. Thus, liquid wastes were shown to serve as valuable resources of nutrients as well as of growth promoting bacteria enabling increased microalgal biomass production.
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spelling pubmed-75377892020-10-16 Chlorella vulgaris and Its Phycosphere in Wastewater: Microalgae-Bacteria Interactions During Nutrient Removal Wirth, Roland Pap, Bernadett Böjti, Tamás Shetty, Prateek Lakatos, Gergely Bagi, Zoltán Kovács, Kornél L. Maróti, Gergely Front Bioeng Biotechnol Bioengineering and Biotechnology Microalgae-based bioenergy production is a promising field with regard to the wide variety of algal species and metabolic potential. The use of liquid wastes as nutrient clearly improves the sustainability of microalgal biofuel production. Microalgae and bacteria have an ecological inter-kingdom relationship. This microenvironment called phycosphere has a major role in the ecosystem productivity and can be utilized both in bioremediation and biomass production. However, knowledge on the effects of indigenous bacteria on microalgal growth and the characteristics of bacterial communities associated with microalgae are limited. In this study municipal, industrial and agricultural liquid waste derivatives were used as cultivation media. Chlorella vulgaris green microalgae and its bacterial partners efficiently metabolized the carbon, nitrogen and phosphorous content available in these wastes. The read-based metagenomics approach revealed a diverse microbial composition at the start point of cultivations in the different types of liquid wastes. The relative abundance of the observed taxa significantly changed over the cultivation period. The genome-centric reconstruction of phycospheric bacteria further explained the observed correlations between the taxonomic composition and biomass yield of the various waste-based biodegradation systems. Functional profile investigation of the reconstructed microbes revealed a variety of relevant biological processes like organic acid oxidation and vitamin B synthesis. Thus, liquid wastes were shown to serve as valuable resources of nutrients as well as of growth promoting bacteria enabling increased microalgal biomass production. Frontiers Media S.A. 2020-09-22 /pmc/articles/PMC7537789/ /pubmed/33072721 http://dx.doi.org/10.3389/fbioe.2020.557572 Text en Copyright © 2020 Wirth, Pap, Böjti, Shetty, Lakatos, Bagi, Kovács and Maróti. http://creativecommons.org/licenses/by/4.0/ This is an open-access article distributed under the terms of the Creative Commons Attribution License (CC BY). The use, distribution or reproduction in other forums is permitted, provided the original author(s) and the copyright owner(s) are credited and that the original publication in this journal is cited, in accordance with accepted academic practice. No use, distribution or reproduction is permitted which does not comply with these terms.
spellingShingle Bioengineering and Biotechnology
Wirth, Roland
Pap, Bernadett
Böjti, Tamás
Shetty, Prateek
Lakatos, Gergely
Bagi, Zoltán
Kovács, Kornél L.
Maróti, Gergely
Chlorella vulgaris and Its Phycosphere in Wastewater: Microalgae-Bacteria Interactions During Nutrient Removal
title Chlorella vulgaris and Its Phycosphere in Wastewater: Microalgae-Bacteria Interactions During Nutrient Removal
title_full Chlorella vulgaris and Its Phycosphere in Wastewater: Microalgae-Bacteria Interactions During Nutrient Removal
title_fullStr Chlorella vulgaris and Its Phycosphere in Wastewater: Microalgae-Bacteria Interactions During Nutrient Removal
title_full_unstemmed Chlorella vulgaris and Its Phycosphere in Wastewater: Microalgae-Bacteria Interactions During Nutrient Removal
title_short Chlorella vulgaris and Its Phycosphere in Wastewater: Microalgae-Bacteria Interactions During Nutrient Removal
title_sort chlorella vulgaris and its phycosphere in wastewater: microalgae-bacteria interactions during nutrient removal
topic Bioengineering and Biotechnology
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7537789/
https://www.ncbi.nlm.nih.gov/pubmed/33072721
http://dx.doi.org/10.3389/fbioe.2020.557572
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