Article
Biotechnology & Applied Microbiology
Rahul V. Khandare, Anuprita D. Watharkar, Pankaj K. Pawar, Anil A. Jagtap, Neetin S. Desai
Summary: The study found that hydrophytes, including Canna indica, Epipremnum aureum, Cyperus alternifolius, and Cyperus rotundus, can effectively remove fluoride from water, with removal rates of 95%, 52%, 65%, and 56% respectively. Factors such as increased fluoride concentration and biomass can affect the removal efficiency of these plants, as well as the fluoride content and antioxidant enzyme activities in their roots and leaves.
ENVIRONMENTAL TECHNOLOGY & INNOVATION
(2021)
Article
Environmental Sciences
Shahin Jahan-Nejati, Mehrangiz Jowkar-Tangkarami, Javad Taei-Semiromi
Summary: This study evaluated the Cu uptake, mobility, and accumulation in Cyperus rotundus under copper stress conditions. It found that the plant has limited Cu translocation from roots to shoots, accumulates Cu in underground tissues, and can be considered a hyper phytostabilizer. Additionally, it suggested that Cyperus rotundus could be used as safe forage in copper contaminated environments based on certain physiological indices.
INTERNATIONAL JOURNAL OF PHYTOREMEDIATION
(2021)
Review
Environmental Sciences
Rajarshi Bhar, Abhisek Mondal, Brajesh K. Dubey, Makarand M. Ghangrekar
Summary: Chlorinated paraffins, a wide range of complex mixtures of chlorinated alkanes, are ubiquitous materials due to their versatile physicochemical properties and wide range of use. This review covers various remediation techniques for CP-contaminated water bodies and soil/sediments, including thermal, photolytic, photocatalytic, nanoscale zero-valent iron (NZVI), microbial, and plant-based methods. Thermal treatment can achieve almost 100% degradation of CPs, but high operational and maintenance costs are required. Photocatalysis and NZVI also show efficient CP removal, while bioremediation and phytoremediation have shown promising results. Further research should focus on analytical techniques, toxicity assessment, and environmental evaluation of different remediation approaches.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Environmental Sciences
Jing Li, Nian Ma, Boyu Hao, Feifei Qin, Xiuxia Zhang
Summary: Total petroleum hydrocarbons (TPH) remain a common pollutant in soil worldwide. This study achieved successful degradation of TPH-contaminated soil through a combination of biostimulation and phytoremediation.
INTERNATIONAL JOURNAL OF PHYTOREMEDIATION
(2023)
Article
Chemistry, Multidisciplinary
Chaojie Li, Qian Su, Weiwen Wang, Zisheng Zhang, Jihai Duan
Summary: ZnO@HCuxS-cm with a three-dimensional micro-nanostructure was constructed and showed good N-2 photoreduction performance without any sacrificial reagent. The enhancement of the NRR activity is due to acid etching assisted vacancy engineering and interface engineering, providing rich active sites and rapid photocatalysis paths. This study presents a potential guiding method for the design of high-efficiency photocatalyst and photoreaction systems.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Biochemistry & Molecular Biology
Almahi Mohamed, Brian K. Beseni, Nontokozo Z. Msomi, Veronica F. Salau, Ochuko L. Erukainure, Aimen Aljoundi, Md Shahidul Islam
Summary: The study investigated the antioxidant and antidiabetic effects of Cyperus rotundus L rhizome, and found that the aqueous extract showed the highest total phenolic content, scavenging activity, and inhibitory effect on a-glucosidase enzyme compared to ethyl acetate and ethanol extracts. GC-MS analysis revealed the presence of phenolic compounds, while molecular docking study indicated the potential bioactive compounds in Cyperus rotundus L.
JOURNAL OF BIOMOLECULAR STRUCTURE & DYNAMICS
(2022)
Article
Biotechnology & Applied Microbiology
Xiangkun Kong, Na Lv, Songmeng Liu, Hui Xu, Junwei Huang, Xiangting Xie, Qing Tao, Baozhan Wang, Rong Ji, Qun Zhang, Jiandong Jiang
Summary: In this study, the bacterial N-demethylase gene pdmAB from isoproturon (IPU) was successfully transferred and expressed in soybeans. The transgenic soybeans showed improved tolerance to IPU and efficiently converted it to a less toxic metabolite. They also demonstrated high removal efficiency of IPU from water and soil, while maintaining a better symbiotic nitrogen fixation capacity and stable rhizosphere bacterial community under IPU stress.
PLANT BIOTECHNOLOGY JOURNAL
(2023)
Article
Chemistry, Medicinal
Qiang Wang, Chundie Yi, Wenlan Duan, Yunfeng Duan, Jiahao Lou, Guangzhi Zeng, Junlin Yin
Summary: Two new sesquiterpenoids, along with 6 known sesquiterpenoids, were isolated from the rhizomes of Cyperus rotundus L. All compounds were structurally elucidated and tested for their inhibitory activity on the NF-κB signaling pathway, with 7 compounds showing varying degrees of inhibition.
NATURAL PRODUCT COMMUNICATIONS
(2021)
Article
Agronomy
Ahmad Ali Pourbabaee, Maryam Khazaei, Hossein Ali Alikhani, Somayeh Emami
Summary: The study evaluated the effect of petroleum hydrocarbons on the nodulation of alfalfa roots, finding that higher crude oil concentrations inhibit plant growth and decrease the number of nodules, possibly through contaminants or metabolites produced by soil microbial activity that inhibit the nodulation activity of Ensifer meliloti.
Article
Engineering, Environmental
Xiaolin Zhang, Ruixiang Li, Jintong Song, Yuanyuan Ren, Xi Luo, Yi Li, Xiaojing Li, Tian Li, Xin Wang, Qixing Zhou
Summary: The study successfully remediated oil-contaminated soil by constructing a plant-microbial-electrochemical system (PMES), removing 18.0 +/- 3.0% of total petroleum hydrocarbons (TPHs) and highlighting the key role of external potential in regulating degradation microorganisms.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Plant Sciences
Reham M. Samra, Amal F. Soliman, Ahmed A. Zaki, Ahmed Ashour, Ahmed A. Al-Karmalawy, Madiha A. Hassan, Ahmed M. Zaghloul
Summary: Eight methanolic extracts were tested for cytotoxic activity against cancer cell lines, with the rhizomes of Cyperus rotundus extract showing the highest activity. Nine compounds were identified, including one new compound and eight known compounds, some of which demonstrated promising anticancer activity. Further research is needed to explore the potential of these compounds as new anticancer agents in the future.
SOUTH AFRICAN JOURNAL OF BOTANY
(2021)
Review
Chemistry, Multidisciplinary
Smith B. Babiaka, Aurelien F. A. Moumbock, Stefan Gunther, Fidele Ntie-Kang
Summary: Cyperus rotundus L., commonly known as Nutgrass, is a notorious weed found in temperate tropical and subtropical regions worldwide. Efforts to identify its bioactive constituents have resulted in the characterization of about 192 compounds, including terpenoids, flavonoids, stilbenes, aromatics, and aliphatic fatty acids. This review summarizes the bioactivities and mechanism of action of some of these compounds.
Article
Food Science & Technology
Ananya Dechakhamphu, Nattapong Wongchum, Theeraphan Chumroenphat, Alongklod Tanomtong, Somchai Pinlaor, Sirithon Siriamornpun
Summary: Cyperus rotundus kombucha exhibits potent antioxidant and anti-diabetic properties, with positive effects on the physiological functions of Drosophila, making it a beneficial beverage for health promotion.
Article
Soil Science
Wei Chen, Yan Gao, Gaoling Shi, Jiangye Li, Guangping Fan, Chenye Yang, Bo Wang, Fei Tong, Yuntao Li
Summary: This study isolated a rhizobium strain, Sinorhizobium sp. W16, capable of efficiently degrading the herbicide fomesafen. The strain achieved a degradation rate of 69% for 5 mg/L fomesafen within 7 days. Liquid chromatography and time-of-flight mass spectrometry identified three metabolites, and W16 was found to be the first strain capable of cleaving the ether bond of fomesafen. Pot experiments demonstrated that W16 could colonize the soybean rhizosphere for more than 50 days, eliminate the inhibition of fomesafen on nitrogen fixation, and promote fomesafen degradation rates by 29.17%-57.87% through symbiotic interactions with legumes.
APPLIED SOIL ECOLOGY
(2023)
Article
Engineering, Chemical
Yongqiang Zheng, Mingxuan Sun, Wangbing Sun, Xianglong Meng, Xiangzhi Huang, Ziyang Li
Summary: This study develops a facile method to synthesize nitrogen-doped graphyne/ BiOBr composites and characterizes their properties. The results show that the composites exhibit superior visible-light response and photocatalytic properties for pollutant decomposition under visible light illumination.
SEPARATION AND PURIFICATION TECHNOLOGY
(2022)
Article
Environmental Sciences
Juliana R. Nascimento, Cole G. Easson, Diogo de A. Jurelevicius, Jose Lopez, Edison D. Bidone, Elisamara Sabadini-Santos
ENVIRONMENTAL MONITORING AND ASSESSMENT
(2020)
Article
Environmental Sciences
Diogo Jurelevicius, Simone R. Cotta, Lara F. Montezzi, Armando C. F. Dias, Olivia U. Mason, Renata C. Picao, Janet K. Jansson, Lucy Seldin
Summary: Anthropogenic activities in coastal marine ecosystems can increase the abundance of potentially harmful microorganisms, leading to an increase in the absolute abundance of bacterial genera related to pathogens and the co-occurrence of antibiotic resistance genes. The composition and function of anthropogenically impacted coastal microbiomes are distinct from those of less impacted sites.
ENVIRONMENTAL POLLUTION
(2021)
Article
Green & Sustainable Science & Technology
Tamara Righetti Tupini Cavalheiro, Raquel de Oliveira Alcoforado, Vinicius Soares de Abreu Silva, Pedro Paulo Saldanha Coimbra, Nathania de Sa Mendes, Elisa D'avila Costa Cavalcanti, Diogo de Azevedo Jurelevicius, Edira Castello Branco de Andrade Goncalves
Summary: This study evaluated the impact of organic fertilizers, onion peel flour and fruit and vegetable flour, on lettuce cultivation. The results showed that fruit and vegetable flour significantly improved soil quality and lettuce growth, enhancing antioxidant activity.
Article
Microbiology
Claudio E. T. Parente, Elcia M. S. Brito, Cesar A. Caretta, Erick A. Cervantes-Rodriguez, Andrea P. Fabila-Canto, Renata E. Vollu, Lucy Seldin, Olaf Malm
Summary: This study assessed the impact of poultry litter application on soil bacterial diversity using high-throughput sequencing. Results showed significant differences in bacterial community structures among soils with different fertilization practices, with variations in richness and composition at the genus level. Predictive analysis suggested the potential presence of enzymes associated with antibiotic resistance and denitrification pathways in the soil with long-term poultry litter fertilization.
BRAZILIAN JOURNAL OF MICROBIOLOGY
(2021)
Article
Energy & Fuels
Diogo Jurelevicius, Luana Ramos, Fernanda Abreu, Ulysses Lins, Maira P. de Sousa, Vanessa V. C. M. dos Santos, Monica Penna, Lucy Seldin
Summary: This study investigated the biogenic production of hydrogen sulfide by sulfate-reducing bacteria in high-temperature oil reservoirs over three years, and found that the addition of nitrate and THPS during secondary oil recovery effectively controlled SRB activity. Different dominant bacterial groups, including thermophilic SRB and nitrate-reducing bacteria in oil reservoir 1, and mesophilic SRB in oil reservoir 2, were identified. The choice of strategy during secondary oil recovery modulated the microbial community and altered the dynamics of H2S production.
Article
Microbiology
Beatriz do Carmo Dias, Fabio Faria da Mota, Diogo Jurelevicius, Lucy Seldin
Summary: This study investigated the nitrogen fixation genes of Paenibacillus brasilensis PB24, identifying the nif operon and regulatory genes involved in biological nitrogen fixation. Gene expression analysis revealed that the presence of NH4 affected the expression of structural and regulatory genes in PB24. Furthermore, the regulatory mechanism of GlnR in PB24 differed from other Paenibacillus species, indicating different binding site distributions.
MICROBIOLOGICAL RESEARCH
(2021)
Article
Geochemistry & Geophysics
Carolina N. Keim, Jilder D. P. Serna, Daniel Acosta-Avalos, Reiner Neumann, Alex S. Silva, Diogo A. Jurelevicius, Raphael S. Pereira, Pamella M. de Souza, Lucy Seldin, Marcos Farina
Summary: A large tailing deposit failed in Brazil in November 2015, releasing iron mining tailings into the environment. The presence of DIRMs in affected sediments was found to consume organics and produce CO2 and Fe(II).
Article
Microbiology
Mariana Barbalho Farias da Silva, Ericka Arregue Lemos, Renata E. Vollu, Fernanda Abreu, Alexandre S. Rosado, Lucy Seldin
Summary: A Gram-positive, nitrogen-fixing strain with endospore-forming abilities was isolated from the gut of the armored catfish. Through genetic and phenotypic analysis, it was identified as a member of the Paenibacillus genus. Genome sequencing and DNA-DNA hybridization experiments confirmed that it represents a distinct species.
ANTONIE VAN LEEUWENHOEK INTERNATIONAL JOURNAL OF GENERAL AND MOLECULAR MICROBIOLOGY
(2022)
Article
Biophysics
Carolina Reis Guimaraes, Ilson Paranhos Pasqualino, Joab Sampaio de Sousa, Fabio Cesar Sousa Nogueira, Lucy Seldin, Livia Vieira Araujo de Castilho, Denise Maria Guimaraes Freire
Summary: Biosurfactants produced by microorganisms, such as Bacillus velezensis H2O-1, show high stability and effectiveness in reducing surface and interfacial tensions in various conditions, making them suitable for applications in the oil industry, particularly in pre-salt and post-salt reservoirs.
COLLOIDS AND SURFACES B-BIOINTERFACES
(2021)
Article
Agronomy
Jackeline Rossetti Mateus, Isabella Dal'Rio, Diogo Jurelevicius, Fabio Faria da Mota, Joana Montezano Marques, Rommel Thiago Juca Ramos, Artur Luiz da Costa da Silva, Paulo Roberto Gagliardi, Lucy Seldin
Summary: This study found that two Bacillus strains isolated from sweet potato roots can inhibit the foot rot disease-causing fungus and protect the plant from the disease in pot experiments. Genes encoding antimicrobial substances in these strains were identified through genome sequencing and annotation, suggesting their potential as biocontrol products in sweet potato cultivation.
Article
Biodiversity Conservation
Mariana Barbalho Farias da Silva, Fabio Faria da Mota, Diogo Jurelevicius, Vasco Ariston de Carvalho Azevedo, Mateus Matiuzzi da Costa, Aristoteles Goes-Neto, Rommel Thiago Juca Ramos, Siomar de Castro Soares, Alexandre Soares Rosado, Lucy Seldin
Summary: Val9, a novel bacterial strain isolated from Antarctica, exhibits potential as a distinct species with various genes related to low-temperature adaptation and biotechnological applications in its genome, highlighting its potential for bioproduct production.
Article
Microbiology
Isabella Dal'Rio, Jackeline Rossetti Mateus, Lucy Seldin
Summary: The bacterial community associated with different parts of Tropaeolum majus was investigated, and potential plant growth-promoting bacteria were identified. The findings suggest the possibility of developing a biofertilizer to enhance the growth of this important plant.
Article
Infectious Diseases
Eliene S. S. Lopes, Claudio E. T. Parente, Renata C. C. Picao, Lucy Seldin
Summary: Poultry litter containing antibiotics and antimicrobial-resistant bacteria can potentially spread antimicrobial resistance genes through water resources in agricultural areas. This study analyzed bacterial communities and genes in different types of ponds during different seasons, and found a potential risk of spreading ARB through water resources in agricultural areas with extensive fertilization with poultry litter.
Article
Biotechnology & Applied Microbiology
Larissa Zambe Pinheiro, Fellipe Francisco da Silva, Maria Sandra Ramos Queiroz, Erika Cristina Goncalves Aguieiras, Eliane Pereira Cipolatti, Aline Souza da Silva, Jonathan Bassut, Lucy Seldin, Denise Oliveira Guimaraes, Denise Maria Guimaraes Freire, Rodrigo Octavio Mendonca Alves de Souza, Ivana Correa Ramos Leal
Summary: Oranges are widely consumed in Brazil with a production of over 80 million tons per year. This study explores the use of orange residues for enzyme production, specifically focusing on the pyridoxal 5-phosphate (PLP)-dependent enzyme group. The use of solid-state fermentation with endophytic microorganisms proved to be an effective and cost-efficient approach for enzyme production.
BIOCATALYSIS AND AGRICULTURAL BIOTECHNOLOGY
(2023)
