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Characterisation of bacteria from the cultures of a Chlorella strain isolated from textile wastewater and their growth enhancing effects on the axenic cultures of Chlorella vulgaris in low nutrient media

Karen Tait, Dan A. White, Susan A. Kimmance, Glen Tarran, Paul Rooks, Mark Jones, Carole Llewellyn

Algal Research, Volume: 44, Start page: 101666

Swansea University Author: Carole Llewellyn

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Abstract

There is increasing interest in the use of microalgae grown on wastewater to provide useful metabolites. Several bacteria have been shown to affect the growth rate and quality of the algae, but it is not clear if this is specific to a particular group of bacteria or if nutrient conditions can also i...

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Published in: Algal Research
ISSN: 2211-9264
Published: Elsevier BV 2019
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URI: https://cronfa.swan.ac.uk/Record/cronfa52806
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first_indexed 2019-11-20T19:14:41Z
last_indexed 2020-11-21T04:07:13Z
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spelling 2020-11-20T11:44:44.4966300 v2 52806 2019-11-20 Characterisation of bacteria from the cultures of a Chlorella strain isolated from textile wastewater and their growth enhancing effects on the axenic cultures of Chlorella vulgaris in low nutrient media bcd94bda79ebf4c2c82d82dfb027a140 Carole Llewellyn Carole Llewellyn true false 2019-11-20 FGSEN There is increasing interest in the use of microalgae grown on wastewater to provide useful metabolites. Several bacteria have been shown to affect the growth rate and quality of the algae, but it is not clear if this is specific to a particular group of bacteria or if nutrient conditions can also influence this interaction. The bacterial community associated with a freshwater Chlorella sp. isolated from open pond textile factory wastewater was characterised and a diverse group of bacteria isolated. We provide evidence that nutrient concentrations affect bacterial community composition. When grown in BG11 medium, the community was dominated by Pseudomonas sp., but when grown in Chu 10 medium (which contains lower nitrogen and phosphorus), the relative abundance of a Brevundimonas spp. increased. Several of the bacteria isolated were able to influence the growth of an axenic Chlorella vulgaris culture. The Pseudomonas sp. had a negative effect in all media tested whereas several isolates enhanced C. vulgaris growth, but only in Chu 10 medium. This supports the theory that bacterial stimulation of algal growth is not limited to species-specific interactions but is influenced by environmental conditions. In low nutrient conditions, Chlorella sp. may be increasingly dependent on bacteria for growth. Journal Article Algal Research 44 101666 Elsevier BV 2211-9264 Chlorella; Algae-associated bacteria; Growth 1 12 2019 2019-12-01 10.1016/j.algal.2019.101666 COLLEGE NANME Science and Engineering - Faculty COLLEGE CODE FGSEN Swansea University 2020-11-20T11:44:44.4966300 2019-11-20T17:09:59.3349138 College of Science Biosciences Karen Tait 1 Dan A. White 2 Susan A. Kimmance 3 Glen Tarran 4 Paul Rooks 5 Mark Jones 6 Carole Llewellyn 7 52806__15969__b1fc7bf3b3bc49b6bd0e2fdde45cbeec.pdf 52806.pdf 2019-11-26T12:17:22.6668491 Output 426338 application/pdf Accepted Manuscript true 2020-11-11T00:00:00.0000000 ©2019 All rights reserved. All article content, except where otherwise noted, is licensed under a Creative Commons Attribution Non-Commercial No Derivatives License (CC-BY-NC-ND) true eng https://creativecommons.org/licenses/by-nc-nd/4.0/
title Characterisation of bacteria from the cultures of a Chlorella strain isolated from textile wastewater and their growth enhancing effects on the axenic cultures of Chlorella vulgaris in low nutrient media
spellingShingle Characterisation of bacteria from the cultures of a Chlorella strain isolated from textile wastewater and their growth enhancing effects on the axenic cultures of Chlorella vulgaris in low nutrient media
Carole Llewellyn
title_short Characterisation of bacteria from the cultures of a Chlorella strain isolated from textile wastewater and their growth enhancing effects on the axenic cultures of Chlorella vulgaris in low nutrient media
title_full Characterisation of bacteria from the cultures of a Chlorella strain isolated from textile wastewater and their growth enhancing effects on the axenic cultures of Chlorella vulgaris in low nutrient media
title_fullStr Characterisation of bacteria from the cultures of a Chlorella strain isolated from textile wastewater and their growth enhancing effects on the axenic cultures of Chlorella vulgaris in low nutrient media
title_full_unstemmed Characterisation of bacteria from the cultures of a Chlorella strain isolated from textile wastewater and their growth enhancing effects on the axenic cultures of Chlorella vulgaris in low nutrient media
title_sort Characterisation of bacteria from the cultures of a Chlorella strain isolated from textile wastewater and their growth enhancing effects on the axenic cultures of Chlorella vulgaris in low nutrient media
author_id_str_mv bcd94bda79ebf4c2c82d82dfb027a140
author_id_fullname_str_mv bcd94bda79ebf4c2c82d82dfb027a140_***_Carole Llewellyn
author Carole Llewellyn
author2 Karen Tait
Dan A. White
Susan A. Kimmance
Glen Tarran
Paul Rooks
Mark Jones
Carole Llewellyn
format Journal article
container_title Algal Research
container_volume 44
container_start_page 101666
publishDate 2019
institution Swansea University
issn 2211-9264
doi_str_mv 10.1016/j.algal.2019.101666
publisher Elsevier BV
college_str College of Science
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hierarchy_top_id collegeofscience
hierarchy_top_title College of Science
hierarchy_parent_id collegeofscience
hierarchy_parent_title College of Science
department_str Biosciences{{{_:::_}}}College of Science{{{_:::_}}}Biosciences
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description There is increasing interest in the use of microalgae grown on wastewater to provide useful metabolites. Several bacteria have been shown to affect the growth rate and quality of the algae, but it is not clear if this is specific to a particular group of bacteria or if nutrient conditions can also influence this interaction. The bacterial community associated with a freshwater Chlorella sp. isolated from open pond textile factory wastewater was characterised and a diverse group of bacteria isolated. We provide evidence that nutrient concentrations affect bacterial community composition. When grown in BG11 medium, the community was dominated by Pseudomonas sp., but when grown in Chu 10 medium (which contains lower nitrogen and phosphorus), the relative abundance of a Brevundimonas spp. increased. Several of the bacteria isolated were able to influence the growth of an axenic Chlorella vulgaris culture. The Pseudomonas sp. had a negative effect in all media tested whereas several isolates enhanced C. vulgaris growth, but only in Chu 10 medium. This supports the theory that bacterial stimulation of algal growth is not limited to species-specific interactions but is influenced by environmental conditions. In low nutrient conditions, Chlorella sp. may be increasingly dependent on bacteria for growth.
published_date 2019-12-01T04:06:51Z
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