Alleviating binary toxicity of polystyrene nanoplastics and atrazine to Chlorella vulgaris through humic acid interaction: Long-term toxicity using environmentally relevant concentrations
In this study, microalgae Chlorella vulgaris (C. vulgaris) were simultaneously exposed to environmental concentrations of amino-functionalized polystyrene nanoplastics (PS-NH2; 0.05, 0.1, 0.2, 0.3 and 0.4 mg/L) and the world's second most used pesticide, the herbicide atrazine (ATZ; 10 μg/L), in the absence and presence of humic acid (HA; 1 mg/L) for 21 days. Due to the low concentrations of PS-NH2, the majority of them could not cause a significant difference in the end-points of biomass, chlorophylls a and b, total antioxidant, total protein, and superoxide dismutase and malondialdehyde compared to the control group (p&...
Source: Chemosphere - April 25, 2024 Category: Chemistry Authors: Mehdi Khoshnamvand Dongmei You Yafang Xie Yixiao Feng Marriya Sultan De-Sheng Pei Ailing Fu Source Type: research
Sustainable Approaches in Green Synthesis of Silica Nanoparticles Using Extracts of Chlorella and Its Application
This study revealed that the nanoparticles can be synthesized using green synthesis methods with low cost, less toxic chemicals, eco-friendly, and have antimicrobial activity against E. coli.PMID:38662321 | DOI:10.1007/s12010-024-04949-9 (Source: Applied Biochemistry and Biotechnology)
Source: Applied Biochemistry and Biotechnology - April 25, 2024 Category: Biochemistry Authors: Ragul Manikandan Jibu Thomas Source Type: research
Alleviating binary toxicity of polystyrene nanoplastics and atrazine to Chlorella vulgaris through humic acid interaction: Long-term toxicity using environmentally relevant concentrations
In this study, microalgae Chlorella vulgaris (C. vulgaris) were simultaneously exposed to environmental concentrations of amino-functionalized polystyrene nanoplastics (PS-NH2; 0.05, 0.1, 0.2, 0.3 and 0.4 mg/L) and the world's second most used pesticide, the herbicide atrazine (ATZ; 10 μg/L), in the absence and presence of humic acid (HA; 1 mg/L) for 21 days. Due to the low concentrations of PS-NH2, the majority of them could not cause a significant difference in the end-points of biomass, chlorophylls a and b, total antioxidant, total protein, and superoxide dismutase and malondialdehyde compared to the control group (p&...
Source: Chemosphere - April 25, 2024 Category: Chemistry Authors: Mehdi Khoshnamvand Dongmei You Yafang Xie Yixiao Feng Marriya Sultan De-Sheng Pei Ailing Fu Source Type: research
Alleviating binary toxicity of polystyrene nanoplastics and atrazine to Chlorella vulgaris through humic acid interaction: Long-term toxicity using environmentally relevant concentrations
In this study, microalgae Chlorella vulgaris (C. vulgaris) were simultaneously exposed to environmental concentrations of amino-functionalized polystyrene nanoplastics (PS-NH2; 0.05, 0.1, 0.2, 0.3 and 0.4 mg/L) and the world's second most used pesticide, the herbicide atrazine (ATZ; 10 μg/L), in the absence and presence of humic acid (HA; 1 mg/L) for 21 days. Due to the low concentrations of PS-NH2, the majority of them could not cause a significant difference in the end-points of biomass, chlorophylls a and b, total antioxidant, total protein, and superoxide dismutase and malondialdehyde compared to the control group (p&...
Source: Chemosphere - April 25, 2024 Category: Chemistry Authors: Mehdi Khoshnamvand Dongmei You Yafang Xie Yixiao Feng Marriya Sultan De-Sheng Pei Ailing Fu Source Type: research
Microalgae extracts modulates the immune response in Trypanosoma cruzi-infected human cells
This study aimed to evaluate, in vitro, immunomodulatory potentials of the aqueous extracts of Chlorella vulgaris and Tetradesmus obliquus. Both microalgae extracts (ME) were obtained by sonication, and the selectivity index (SI) was determined by assays of inhibitory concentration (IC50) in T. cruzi trypomastigotes cells; as well as the cytotoxic concentrations (CC50) in human peripheral mononuclear cells (PBMC). The immune response was evaluated in T. cruzi-infected PBMC using the IC50 value. ME led to inhibition of T. cruzi trypomastigotes after 24 h of treatment, in which the IC50 values were 112.1 µg/ml to C. vulgari...
Source: Cytokine - April 22, 2024 Category: Molecular Biology Authors: Jos é Noé da Silva Júnior Kamila Kassia Dos Santos Oliveira Ana Carla da Silva Virginia Maria Barros de Lorena Daniela de Ara újo Viana Marques Raquel Pedrosa Bezerra Ana L úcia Figueiredo Porto Source Type: research
Microalgae extracts modulates the immune response in Trypanosoma cruzi-infected human cells
This study aimed to evaluate, in vitro, immunomodulatory potentials of the aqueous extracts of Chlorella vulgaris and Tetradesmus obliquus. Both microalgae extracts (ME) were obtained by sonication, and the selectivity index (SI) was determined by assays of inhibitory concentration (IC50) in T. cruzi trypomastigotes cells; as well as the cytotoxic concentrations (CC50) in human peripheral mononuclear cells (PBMC). The immune response was evaluated in T. cruzi-infected PBMC using the IC50 value. ME led to inhibition of T. cruzi trypomastigotes after 24 h of treatment, in which the IC50 values were 112.1 µg/ml to C. vulgari...
Source: Cytokine - April 22, 2024 Category: Molecular Biology Authors: Jos é Noé da Silva Júnior Kamila Kassia Dos Santos Oliveira Ana Carla da Silva Virginia Maria Barros de Lorena Daniela de Ara újo Viana Marques Raquel Pedrosa Bezerra Ana L úcia Figueiredo Porto Source Type: research
Effects of four antibiotics on the photosynthetic light reactions in the green alga Chlorella pyrenoidosa
This study contributes to a better understanding of the risk of antibiotics on primary producers in aquatic environment.PMID:38643813 | DOI:10.1016/j.cbpc.2024.109927 (Source: Comparative biochemistry and physiology. Toxicology and pharmacology : CBP)
Source: Comparative biochemistry and physiology. Toxicology and pharmacology : CBP - April 21, 2024 Category: Biochemistry Authors: Feifan Wang Ping Liu Jiajun Li Siting Xu Hongxing Chen Lingtian Xie Source Type: research
Presence of humic acid in the environment holds promise as a potential mitigating factor for the joint toxicity of polystyrene nanoplastics and herbicide atrazine to Chlorella vulgaris: 96-h acute toxicity
This study firstly highlights the role of HA in mitigating the toxicity of PS-NH2 when combined with other harmful compounds, enhancing our understanding of HA's presence in the environment.PMID:38642775 | DOI:10.1016/j.chemosphere.2024.142061 (Source: Chemosphere)
Source: Chemosphere - April 20, 2024 Category: Chemistry Authors: Mehdi Khoshnamvand Dongmei You Yafang Xie Yixiao Feng Marriya Sultan Xingyi Wei Jingli Li Ailing Fu De-Sheng Pei Source Type: research
Presence of humic acid in the environment holds promise as a potential mitigating factor for the joint toxicity of polystyrene nanoplastics and herbicide atrazine to Chlorella vulgaris: 96-h acute toxicity
This study firstly highlights the role of HA in mitigating the toxicity of PS-NH2 when combined with other harmful compounds, enhancing our understanding of HA's presence in the environment.PMID:38642775 | DOI:10.1016/j.chemosphere.2024.142061 (Source: Chemosphere)
Source: Chemosphere - April 20, 2024 Category: Chemistry Authors: Mehdi Khoshnamvand Dongmei You Yafang Xie Yixiao Feng Marriya Sultan Xingyi Wei Jingli Li Ailing Fu De-Sheng Pei Source Type: research
Continuous microalgal culture module and method of culturing microalgae containing macular pigment
This study established and investigated continuous macular pigment (MP) production with a lutein (L):zeaxanthin (Z) ratio of 4-5:1 by an MP-rich Chlorella sp. CN6 mutant strain in a continuous microalgal culture module. Chlorella sp. CN6 was cultured in a four-stage module for 10 days. The microalgal culture volume increased to 200 L in the first stage (6 days). Biomass productivity increased to 0.931 g/L/day with continuous indoor white light irradiation during the second stage (3 days). MP content effectively increased to 8.29 mg/g upon continuous, indoor white light and blue light-emitting diode irradiation in the third...
Source: Bioresource Technology - April 19, 2024 Category: Biotechnology Authors: Meng-Wei Lin Chih-Sheng Lin Yu-Tso Chen Shao-Qian Huang Yi-Chun Yang Wen-Xin Zhang Wei-Hong Chiu Cheng-Han Lin Chiu-Mei Kuo Source Type: research
GSE172389 UV- and g-radiation induced molecular changes for rapid lipid accumulation in Chlorella sorokiniana
Contributors : Devi R Singh Reema ; Ashish K SrivastavaSeries Type : Expression profiling by high throughput sequencingOrganism : Chlorella sorokinianaThe data in the present study suggested the possibility of using UV and γ-radiation to enhance lipid accumulation along with detailed insights at the molecular level.The transcriptomic data at 24 h post UV (1 J/cm2) and γ-radiation (1 kGy) revealed foremost effect of UV on photosynthetic machinery while in γ-, DNA damage, repair and replication at a global level. In addition, the key fatty acid biosynthesis related genes were also found to be upregulated which coincided w...
Source: GEO: Gene Expression Omnibus - April 19, 2024 Category: Genetics & Stem Cells Tags: Expression profiling by high throughput sequencing Chlorella sorokiniana Source Type: research
Enhancing biomass and lipid accumulation by a novel microalga for unsterilized piggery biogas slurry remediation
This study examines the growth of a novel algae Chlorella sp. YSD-2 and the removal of nutrients from the BS using different pretreatment methods, including dilution ratio and sterilization. The highest biomass production (1.84 g L-1) was achieved in the 1:2 unsterilized biogas slurry, which was 2.03 times higher than that in the sterilized group, as well as higher lipid productivity (17.29 mg L-1 d-1). Nevertheless, the sterilized biogas slurry at a 1:1 dilution ratio exhibited the most notable nutrient-removal efficiency, with COD at 71.97%, TP at 91.32%, and TN at 88.80%. Additionally, the analysis of 16S rRNA sequencin...
Source: Environmental Science and Pollution Research International - April 16, 2024 Category: Environmental Health Authors: Li Huang Xingling Zhao Kai Wu Chengyue Liang Jing Liu Hong Yang Fang Yin Changmei Wang Bin Yang Wudi Zhang Source Type: research
A sulfated exopolysaccharide derived from Chlorella sp. exhibiting in vitro anti- α-D-Glucosidase activity
This study aimed to isolate a polysaccharide-producing microalga from an extreme ecosystem and to evaluate its capacity to inhibit the α-D-glucosidase enzyme. Chlorella strain is isolated from hypersaline Lake in the Algerian desert. The exopolysaccharide extraction was performed by the concentration of free-cell supernatant in a rotary evaporator. The infrared analysis showed a characteristic footprint of carbohydrates with particular functional groups, such as sulfate. Gas chromatography-mass spectrometry has revealed a hetero-exopolysaccharide composed of galactose 35.75%, glucose 21.13%, xylose 16.81%, fructose 6.96%,...
Source: Archives of Microbiology - April 16, 2024 Category: Microbiology Authors: Karima Guehaz Zakaria Boual Alia Telli Hicham Meskher Hakim Belkhalfa Guillaume Pierre Philippe Michaud Alessandra Adessi Source Type: research
Biological Activity of Endometabolites of Microalgae Chlorella sorokiniana
Industrial Biotechnology,Volume 20, Issue 2, Page 67-76, April 2024. (Source: Industrial Biotechnology)
Source: Industrial Biotechnology - April 16, 2024 Category: Biotechnology Authors: Mikhail S. Temnov Yana V. Ustinskaya Kirill I. Meronyuk Dmitry S. Dvoretsky Source Type: research
Molecular mechanism of dissolvable metal nanoparticles-enhanced CO < sub > 2 < /sub > fixation by algae: Metal-chlorophyll synthesis
This study selected six representative metal NPs (Fe3O4, ZnO, CuO, NiO, MgO, and Ag) to investigate their impacts on CO2 fixation by algae (Chlorella vulgaris). We discovered an intriguing phenomenon that bivalent metal ions released from the metal NPs, especially from ZnO NPs, substituted Mg2+ within the porphyrin ring. This interaction led to 81.8% and 76.1% increases in Zinc-chlorophyll and Magnesium-chlorophyll contents within algal cells at 0.01 mM ZnO NPs, respectively. Integrating metabolomics and transcriptomics analyses revealed that ZnO NPs mainly promoted the photosynthesis-antenna protein pathway, porphyrin and...
Source: Environmental Pollution - April 15, 2024 Category: Environmental Health Authors: Ruohua Qu Na Liu Qiong Wen Jingyi Guo Fei Ge Source Type: research
