Impacts of a bacterial algicide on metabolic pathways in Chlorella vulgaris

Lü, Qianqian; Zhou, Xinzhu; Liu, Ruidan; Shi, Guojing; Zheng, Ningning; Gao, Guanghai; Wang, Yingying

doi:10.1016/j.ecoenv.2022.114451

Cited by 6 publications

(2 citation statements)

References 73 publications

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“…Cui et al [69] showed positive effects of surfactants on the degradation of petroleum hydrocarbons by Kocuria rosea, Bacillus odyssey and Microbacterium. Carbohydrate and amino acid metabolism play major roles in energy supply and osmotic pressure regulation respectively [70] . Carbohydrate and amino acid metabolic pathways support bacteria to rapidly activate their own regulatory functions under salt stress and maximize capability to degrade xenobiotic compounds.…”

Section: C1-c2mentioning

confidence: 99%

Comparative metabolomics reveal histamine biodegradation mechanism by salt stressed Bacillus subtilis JZXJ-7

Wang,

Deng,

Zhang

et al. 2024

Food Science and Human Wellness

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Bacillus subtilis (B. subtilis) JZXJ-7 isolated from shrimp paste can significantly degrade histamine under salt stress but the mechanism is unclear. This study aims to evaluate the effect of 170 and 340 mmol/L NaCl on B. subtilis JZXJ-7 growth, histamine degradation, antioxidant enzymes [catalase (CAT), superoxide dismutase (SOD) and glutathione S-transferase (GST)] activities and Na + , K + -ATPase activity. Furthermore, comparative metabolomics was used to investigate histamine biodegradation mechanism by B.subtilis JZXJ-7 subjected to salt stress. Both 170 and 340 mmol/L NaCl promoted B. subtilis JZXJ-7 growth in late stages of reproduction (32 − 48 h), increased histamine degradation rate by 64.85% and 79.87% (P < 0.05), Na + , K + -ATPase activity to 6.28 U/mg (P < 0.05) and 11.63 U/mg (P < 0.01) respectively. NaCl treatment significantly increased the activities of CAT, GST and SOD (P < 0.05), amino acids and its metabolites (33.39%), benzene and substituted derivatives (12.05%), heterocyclic compounds (10.62%), organic acids and derivatives (9.75%), aldehydes, ketones, esters (5.59%) and nucleotides and its metabolites (4.58%). Metabolite set enrichment analysis revealed NaCl induced differential metabolic pathways of D-glutamine, D-glutamate, L-arginine, L-proline, histidine and glycerophospholipids, L-lysine degradation, and aminoacyl-tRNA biosynthesis. Exposure to 340 mmol/L NaCl up-regulated carbohydrate, glutathione and glycerophospholipid metabolism. The new insights into the mechanism of salt stress to promote B. subtilis JZJX-7 growth, energy metabolic pathways and to degrade histamine provide the theoretical basis for application of B. subtilis JZXJ-7 in food fermentation industry.

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Section: C1-c2mentioning

confidence: 99%

Comparative metabolomics reveal histamine biodegradation mechanism by salt stressed Bacillus subtilis JZXJ-7

Wang,

Deng,

Zhang

et al. 2024

Food Science and Human Wellness

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“… D. salina n/d [ 111 ] Bacteria Bacillus fusiformis Chlorella sp. Secreted metabolites 45.6% (1 d) [ 112 ] Enterobacter cloacae , Gibberella moniliformis C. pyrenoidosa n/d n/d [ 113 ] Bowmanella denitrificans C. vulgaris Secreted metabolites 28.7% [ 114 ] Bacillus thuringiensis ITRI-G1 C. vulgaris Secreted AES-Bt agents 100% (8 h) [ 115 ] Microbacterium paraoxydans C. vulgaris Secreted atrazine-desethyl 64.38% [ 116 ] Ponticoccus sp. CBA02 D. salina Secreted metabolites n/d [ 117 ] Sagittula stellata D. salina n/d 52.4% (6 d) [ 118 ] Paenibacillus polymyxa MEZ6 H. pluvialis Secreted metabolites 46.3% [ 119 ] Other algae Oocystis sp.…”

Section: Control Of Biological Contaminantsmentioning

confidence: 99%

Biotechnologies for bulk production of microalgal biomass: from mass cultivation to dried biomass acquisition

Qin,

Wang,

Gao

et al. 2023

Biotechnol Biofuels

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Microalgal biomass represents a sustainable bioresource for various applications, such as food, nutraceuticals, pharmaceuticals, feed, and other bio-based products. For decades, its mass production has attracted widespread attention and interest. The process of microalgal biomass production involves several techniques, mainly cultivation, harvesting, drying, and pollution control. These techniques are often designed and optimized to meet optimal growth conditions for microalgae and to produce high-quality biomass at acceptable cost. Importantly, mass production techniques are important for producing a commercial product in sufficient amounts. However, it should not be overlooked that microalgal biotechnology still faces challenges, in particular the high cost of production, the lack of knowledge about biological contaminants and the challenge of loss of active ingredients during biomass production. These issues involve the research and development of low-cost, standardized, industrial-scale production equipment and the optimization of production processes, as well as the urgent need to increase the research on biological contaminants and microalgal active ingredients. This review systematically examines the global development of microalgal biotechnology for biomass production, with emphasis on the techniques of cultivation, harvesting, drying and control of biological contaminants, and discusses the challenges and strategies to further improve quality and reduce costs. Moreover, the current status of biomass production of some biotechnologically important species has been summarized, and the importance of improving microalgae-related standards for their commercial applications is noted.

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Quantitative modelling reservoir microalgae proliferation in response to water-soluble anions and cations influx

Zhang,

Mkandawire

et al. 2024

Bioresource Technology

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Impacts of a bacterial algicide on metabolic pathways in Chlorella vulgaris

Cited by 6 publications

References 73 publications

Comparative metabolomics reveal histamine biodegradation mechanism by salt stressed Bacillus subtilis JZXJ-7

Comparative metabolomics reveal histamine biodegradation mechanism by salt stressed Bacillus subtilis JZXJ-7

Biotechnologies for bulk production of microalgal biomass: from mass cultivation to dried biomass acquisition

Quantitative modelling reservoir microalgae proliferation in response to water-soluble anions and cations influx

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