Supplementation of exogenous phytohormones for enhancing the removal of sulfamethoxazole and the simultaneous accumulation of lipid by Chlorella vulgaris

Lei Yang; Ashiwin Vadiveloo; Ai-Jie Chen; Wen-Zhu Liu; Dong-Zhi Chen; Feng Gao

doi:10.1016/j.biortech.2023.129002

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Supplementation of exogenous phytohormones for enhancing the removal of sulfamethoxazole and the simultaneous accumulation of lipid by Chlorella vulgaris

Journal article

Peer reviewed

Supplementation of exogenous phytohormones for enhancing the removal of sulfamethoxazole and the simultaneous accumulation of lipid by Chlorella vulgaris

Lei Yang, Ashiwin Vadiveloo, Ai-Jie Chen, Wen-Zhu Liu, Dong-Zhi Chen and Feng Gao

Bioresource technology, Vol.378, 129002

2023

DOI: https://doi.org/10.1016/j.biortech.2023.129002

PMID: 37019415

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Abstract

Abiotic stress

Antibiotics removal

Microalgae

Plant hormones

Sulfonamide

In this study, the phytohormone gibberellins (GAs) were used to enhance sulfamethoxazole (SMX) removal and lipid accumulation in the microalgae Chlorella vulgaris. At the concentration of 50 mg/L GAs, the SMX removal achieved by C. vulgaris was 91.8 % while the lipid productivity of microalga was at 11.05 mg/L d-1, which were much higher than that without GAs (3.5 % for SMX removal and 0.52 mg/L d-1 for lipid productivity). Supplementation of GAs enhanced the expression of antioxidase-related genes in C. vulgaris as a direct response towards the toxicity of SMX. In addition, GAs increased lipid production of C. vulgaris by up-regulating the expression of genes related to carbon cycle of microalgal cells. In summary, exogenous GAs promoted the stress tolerance and lipid accumulation of microalgae at the same time, which is conducive to improving the economic benefits of microalgae-based antibiotics removal as well as biofuel production potential.

Details

Title: Supplementation of exogenous phytohormones for enhancing the removal of sulfamethoxazole and the simultaneous accumulation of lipid by Chlorella vulgaris
Authors/Creators: Lei Yang - Zhejiang Ocean University
Ashiwin Vadiveloo - Murdoch University
Ai-Jie Chen - Zhejiang Ocean University
Wen-Zhu Liu - Zhejiang Ocean University
Dong-Zhi Chen - Zhejiang Ocean University
Feng Gao - Zhejiang Ocean University
Publication Details: Bioresource technology, Vol.378, 129002
Publisher: Elsevier Ltd
Identifiers: 991005565614707891
Murdoch Affiliation: Centre for Water, Energy and Waste; School of Environmental and Conservation Sciences; Algae R&D Centre
Language: English
Resource Type: Journal article

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Collaboration types: Domestic collaboration; International collaboration
Citation topics: 3 Agriculture, Environment & Ecology; 3.171 Photoproductivity; 3.171.477 Microalgae Biotechnology
Web Of Science research areas: Agricultural Engineering; Biotechnology & Applied Microbiology; Energy & Fuels
ESI research areas: Biology & Biochemistry