1
|
Singha LP, Singha KM, Pandey P. Functionally coherent transcriptional responses of Jatropha curcas and Pseudomonas fragi for rhizosphere mediated degradation of pyrene. Sci Rep 2024; 14:1014. [PMID: 38200308 PMCID: PMC10781960 DOI: 10.1038/s41598-024-51581-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/23/2023] [Accepted: 01/07/2024] [Indexed: 01/12/2024] Open
Abstract
Pyrene is an extremely hazardous, carcinogenic polycyclic aromatic hydrocarbon (PAH). The plant-microbe interaction between Pseudomonas fragi DBC and Jatropha curcas was employed for biodegradation of pyrene and their transcriptional responses were compared. The genome of P. fragi DBC had genes for PAH degrading enzymes i.e. dioxygenases and dehydrogenases, along with root colonization (trpD, trpG, trpE and trpF), chemotaxis (flhF and flgD), stress adaptation (gshA, nuoHBEKNMG), and detoxification (algU and yfc). The transcriptional expression of catA and yfc that respectively code for catabolic enzyme (catechol-1, 2-dioxygnase) and glutathione-s-transferase for detoxification functions were quantitatively measured by qPCR. The catA was expressed in presence of artificial root exudate with or without pyrene, and glucose confirming the non-selective approach of bacteria, as desired. Pyrene induced 100-fold increase of yfc expression than catA, while there was no expression of yfc in absence of pyrene. The transcriptome of plant roots, in presence of pyrene, with or without P. fragi DBC inoculation was analysed. The P. fragi DBC could upregulate the genes for plant growth, induced the systemic acquired resistance and also ameliorated the stress response in Jatropha roots.
Collapse
Affiliation(s)
- L Paikhomba Singha
- Department of Microbiology, Assam University, Silchar, Assam, 788011, India
- Department of Microbiology, Central University of Rajasthan, Ajmer, Rajasthan, 305817, India
| | - K Malabika Singha
- Department of Microbiology, Assam University, Silchar, Assam, 788011, India
| | - Piyush Pandey
- Department of Microbiology, Assam University, Silchar, Assam, 788011, India.
| |
Collapse
|
2
|
Wang Y, Li M, Liu Z, Zhao J, Chen Y. Interactions between pyrene and heavy metals and their fates in a soil-maize (Zea mays L.) system: Perspectives from the root physiological functions and rhizosphere microbial community. ENVIRONMENTAL POLLUTION (BARKING, ESSEX : 1987) 2021; 287:117616. [PMID: 34174663 DOI: 10.1016/j.envpol.2021.117616] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/08/2021] [Revised: 05/30/2021] [Accepted: 06/15/2021] [Indexed: 06/13/2023]
Abstract
The co-occurrence of polycyclic aromatic hydrocarbons (PAHs) and heavy metals in agricultural soils has become a worldwide food crop security concern. Pot experiments, rhizosphere microbial metagenomic sequencing, and root metatranscriptomic sequencing were performed to investigate the interactions among pyrene, Cu, and Cd in a soil-maize (Zea mays L.) system. This study provided direct evidence that the co-presence of PAHs and heavy metals changed the root physiological functions and the rhizosphere microbial community, which subsequently influenced the fate of the contaminants. Co-contamination at low levels tended to enhance the uptake potential and biodegradation performance of the plant, whereas increased contaminant concentrations produced opposite effects. The co-presence of 1000 mg/kg Cu decreased the abundance of Mycobacterium in the rhizosphere and reduced pyrene degradation by 12%-16%. The presence of 400-750 mg/kg pyrene altered the metabolic processes, molecular binding functions, and catalytic activity of enzymes in the maize roots, thus impeding the phytoextraction of Cu and Cd. Competitive absorption between Cu and Cd was observed for the 800-1000 mg/kg Cu and 50-100 mg/kg Cd co-treatment, in which Cu showed a competitive advantage, enhancing its root-to-shoot translocation. These findings provide important information for the production of safe crops and for the development of phytoremediation technologies.
Collapse
Affiliation(s)
- Yuhui Wang
- College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, PR China
| | - Manjie Li
- State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing, 100084, PR China.
| | - Zhaowei Liu
- State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing, 100084, PR China
| | - Juanjuan Zhao
- College of Environmental Science and Engineering, Donghua University, Shanghai, 201620, PR China
| | - Yongcan Chen
- State Key Laboratory of Hydroscience and Engineering, Tsinghua University, Beijing, 100084, PR China; Southwest University of Science and Technology, 59 Qinglong Road, Mianyang, 621010, Sichuan, PR China
| |
Collapse
|
3
|
Alves WS, Santos NS, Baroca FF, Alves BPD, Nunes RO, Abrahão GCD, Manoel EA, Soares MR. The influence of polycyclic aromatic hydrocarbons in protein profile of Medicago sativa L. INTERNATIONAL JOURNAL OF PHYTOREMEDIATION 2020; 23:426-435. [PMID: 33070622 DOI: 10.1080/15226514.2020.1825324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Medicago sativa L. (alfalfa) are studied as potential phytoremediation agents of priority pollutants like polycyclic aromatic hydrocarbons (PAH). However, elucidation of the biochemical mechanisms involved in phytoremediation is a topic to be explored with knowledge gaps. This study aims to identify and classify proteins expressed in the aerial parts of laboratory-cultivated alfalfa in the presence and absence of pyrene, anthracene, and phenanthrene. Soil samples were amended with 100 mg.kg-1 of each PAH (total concentration of 300 ppm) and cultivated with alfalfa plants for 20 days. After this, aerial parts of cultivated plants from each condition were collected for qualitative proteomic analysis (ESI-Q/TOF). The results showed a significant increase (Student's t-test p < 0.05) of 41.7% in the concentration of proteins from plants grown in PAH-amended substrates, changes in the protein profile, with intense protein bands observed at 40-55, 34, 28, and 15 kDa when compared to the control. A total of 504 proteins were identified and classified into 12 functional categories, highlighting the identification of 11 phytoremediation-related proteins candidates in plants grown in the presence of PAH, with biological functions related to diverse metabolisms involved in the xenobiotics biodegradation (included PAH), glutathione and response to stress.
Collapse
Affiliation(s)
- Wilber S Alves
- Departamento de Bioquímica, Instituto de Química, Universidade Federal do Rio de Janeiro, Cidade Universitária, Rio de Janeiro, Brazil
- Programa Químico de Petróleo e Biocombustíveis PRH-01, Instituto de Química, Universidade Federal do Rio de Janeiro, Cidade Universitária, Rio de Janeiro, Brazil
- Departamento de Ensino Médio e Técnico - Centro Federal de Educação Tecnológica Celso Suckow da Fonseca, CEFET/RJ - Campus Maracanã, Rio de Janeiro, Brazil
| | - Noemi S Santos
- Departamento de Bioquímica, Instituto de Química, Universidade Federal do Rio de Janeiro, Cidade Universitária, Rio de Janeiro, Brazil
| | - Felipe F Baroca
- Departamento de Bioquímica, Instituto de Química, Universidade Federal do Rio de Janeiro, Cidade Universitária, Rio de Janeiro, Brazil
| | - Bruna P D Alves
- Departamento de Bioquímica, Instituto de Química, Universidade Federal do Rio de Janeiro, Cidade Universitária, Rio de Janeiro, Brazil
| | - Rosane O Nunes
- Departamento de Bioquímica, Instituto de Química, Universidade Federal do Rio de Janeiro, Cidade Universitária, Rio de Janeiro, Brazil
| | - Giselli C D Abrahão
- Departamento de Bioquímica, Instituto de Química, Universidade Federal do Rio de Janeiro, Cidade Universitária, Rio de Janeiro, Brazil
| | - Evelin A Manoel
- Departamento de Biotecnologia Farmacêutica, Faculdade de Farmácia, Universidade Federal do Rio de janeiro, Cidade Universitária, Rio de Janeiro, Brazil
| | - Marcia R Soares
- Departamento de Bioquímica, Instituto de Química, Universidade Federal do Rio de Janeiro, Cidade Universitária, Rio de Janeiro, Brazil
| |
Collapse
|
4
|
Dai H, Wei S, Noori A. The mechanism of chelator improved the tolerance and accumulation of poplar to Cd explored through differential expression protein based on iTRAQ. JOURNAL OF HAZARDOUS MATERIALS 2020; 393:122370. [PMID: 32120214 DOI: 10.1016/j.jhazmat.2020.122370] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2019] [Revised: 02/03/2020] [Accepted: 02/21/2020] [Indexed: 06/10/2023]
Abstract
Appropriate chelator may increase plant tolerance and accumulation for Cd in soil, but its molecular mechanism is unclear. In this experiment, the technology of isobaric tags for relative and absolute quantitation (iTRAQ) was used to compare the differential expression proteins (DEPs) and differential expression genes (DEGs) characteristics of poplar accumulating Cd combined with EDTA and/or EGTA. The results showed that the Cd concentrations, biomasses and activities of antioxidant enzymes of poplar were significantly increased in the treatments of chelator addition compared to the TCd. The number of co-intersecting specific proteins of TCd/CK, TCd+EDTA/TCd, TCd+EGTA/TCd and TCd+EDTA+EGTA/TCd was 49. Using the GO function and KEGG analysis, it was found that EDTA and EGTA might improve some main metabolic pathways of poplar leaves, which were involved in the enhancement of the expression of carbohydrate and energy metabolism-related proteins, regulation of cell energy metabolism, complementing and cooperating with each other in various ways, and dynamic regulation of energy metabolism. Particularly, chelator might induce the regulation of protein synthesis, folding and transport, and degradation of abnormal proteins in response to Cd toxicity. These results provided a theoretical basis for further elucidation of molecular mechanisms of poplar response to Cd stress.
Collapse
Affiliation(s)
- Huiping Dai
- College of Biological Science & Engineering, Shaanxi Province Key Laboratory of Bio-resources, Shaanxi University of Technology, Hanzhong, 723001, China
| | - Shuhe Wei
- Key Laboratory of Pollution Ecology and Environment Engineering, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang, 110016, China.
| | - Azam Noori
- Department of Biology, Merrimack College, North Andover, MA, 01845, USA
| |
Collapse
|
5
|
Characterization of Di-n-Butyl Phthalate Phytoremediation by Garden Lettuce (Lactuca sativa L. var. longifolia) through Kinetics and Proteome Analysis. SUSTAINABILITY 2019. [DOI: 10.3390/su11061625] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Di-n-dutyl phthalate (DBP), an endocrine disruptor, is one of the most widely used phthalate esters (PAEs) in the world. It can be accumulated in seafood or agricultural products and represents a substantial risk to human health via the food chain. Thus, finding a plant which can remediate DBP but have no effects on growth is the main topic of the development of DBP phytoremediation. This study used garden lettuce (Lactuca sativa L. var. longifolia), which has a significant DBP absorption capability, as a test plant to measure phytoremediation kinetics and proteome changes after being exposed to DBP. The results show that DBP accumulated in different parts of the garden lettuce but the physiological status and morphology showed no significant changes following DBP phytoremediation. The optimal condition for the DBP phytoremediation of garden lettuce is one critical micelle concentration (CMC) of non-ionic surfactant Tween 80 and the half-life (t1/2, days), which calculated by first-order kinetics, was 2.686 days for 5 mg L−1 of DBP. This result indicated that the addition of 1 CMC of Tween 80 could enhance the efficiency of DBP phytoremediation. In addition, the results of biotoxicity showed that the median effective concentration (EC50) of DBP for Chlorella vulgaris is 4.9 mg L−1. In this case, the overall toxicity markedly decreased following phytoremediation. In the end, the result of proteome analysis showed six protein spots, revealing significant alterations. According to the information of these proteomes, DBP potentially causes osmotic and oxidative stress in garden lettuce. In addition, since DBP had no significant effects on the morphology and physiological status of garden lettuce, garden lettuce can be recommended for use in the plant anti-DBP toxicity test, and also as the candidate plant for DBP phytoremediation. We hope these findings could provide valuable information for DBP-contaminated water treatment in ecological engineering applications or constructed wetlands.
Collapse
|
6
|
Zhang Y, Virjamo V, Sobuj N, Du W, Yin Y, Nybakken L, Guo H, Julkunen-Tiitto R. Elevated temperature and CO 2 affect responses of European aspen (Populus tremula) to soil pyrene contamination. THE SCIENCE OF THE TOTAL ENVIRONMENT 2018; 634:150-157. [PMID: 29627537 DOI: 10.1016/j.scitotenv.2018.03.344] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/13/2018] [Revised: 03/28/2018] [Accepted: 03/28/2018] [Indexed: 06/08/2023]
Abstract
High northern latitudes are climatic sensitive areas, and are also regions to which polycyclic aromatic hydrocarbons (PAHs) easily transport and accumulate with potential risk to natural ecosystems. However, the effect of PAHs on northern woody plant growth and defense under climate change is very little studied. Here, we conducted a unique experiment in greenhouses to investigate sex-related responses of the dioecious Populus tremula to pyrene (50mgkg-1) and residue of pyrene in soils under ambient and elevated temperature (+1.8°C on average) and CO2 (740ppm). Pyrene decreased stem biomass and leaf area by 9% and 6%, respectively under ambient conditions, and the reduction of leaf area was more severe under elevated temperature (38%), elevated CO2 (37%), and combined T+CO2 (42%). Other growth parameters were unchanged by pyrene. Pyrene did not affect the concentration of leaf total phenolics under ambient conditions, but increased it by 16%, 1%, and 20% compared to controls under elevated temperature, elevated CO2, and T+CO2, respectively. Pyrene had only minor sex-specific effects on plant growth and phenolics. The concentration of residual pyrene in pyrene-spiked soils was higher under elevated CO2 than under ambient, elevated temperature, and combined T+CO2. The results suggest that both sexes of P. tremula have the capacity to regulate growth and metabolism to adjust to the stress of the tested pyrene contamination under elevated temperature and CO2, but potential risk of pyrene to plants still exists in the future changing climate.
Collapse
Affiliation(s)
- Yaodan Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, 210023 Nanjing, China; Department of Environmental and Biological Sciences, University of Eastern Finland, 80101 Joensuu, Finland
| | - Virpi Virjamo
- Department of Environmental and Biological Sciences, University of Eastern Finland, 80101 Joensuu, Finland
| | - Norul Sobuj
- Department of Environmental and Biological Sciences, University of Eastern Finland, 80101 Joensuu, Finland
| | - Wenchao Du
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, 210023 Nanjing, China
| | - Ying Yin
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, 210023 Nanjing, China
| | - Line Nybakken
- Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, 1432 Ås, Norway
| | - Hongyan Guo
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, 210023 Nanjing, China.
| | - Riitta Julkunen-Tiitto
- Department of Environmental and Biological Sciences, University of Eastern Finland, 80101 Joensuu, Finland
| |
Collapse
|
7
|
Zhang Y, Virjamo V, Du W, Yin Y, Nissinen K, Nybakken L, Guo H, Julkunen-Tiitto R. Effects of soil pyrene contamination on growth and phenolics in Norway spruce (Picea abies) are modified by elevated temperature and CO 2. ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH INTERNATIONAL 2018; 25:12788-12799. [PMID: 29473139 DOI: 10.1007/s11356-018-1564-7] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Accepted: 02/13/2018] [Indexed: 05/06/2023]
Abstract
With the constant accumulation of polycyclic aromatic hydrocarbons (PAHs) in soil and increasing temperature and CO2 levels, plants will inevitably be exposed to combined stress. Studies on the effects of such combined stresses are needed to develop mitigation and adaptation measures. Here, we investigated the effects of soil pyrene contamination (50 mg kg-1) on growth and phenolics of 1-year-old Norway spruce seedlings from five different origins in Finland at elevated temperature (+ 2 °C) and CO2 (+ 360 ppm). Pyrene significantly decreased spruce height growth (0-48%), needle biomass (0-44%), stem biomass (0-43%), and total phenolic concentrations in needles (2-13%) and stems (1-19%) compared to control plants. Elevated temperature alone did not affect growth but led to lower concentrations of total phenolics in needles (5-29%) and stems (5-18%) in both soil treatments. By contrast, elevated CO2 led to higher needle biomass (0-39%) in pyrene-spiked soils and higher concentrations of stem phenolics (0-18%) in pyrene-spiked and control soils compared to ambient treatments. The decrease in height growth and phenolic concentrations caused by pyrene was greater at elevated temperature, while elevated CO2 only marginally modified the response. Seedlings from different origins showed different responses to the combined environmental stressors. The changes in growth and in the quantity and quality of phenolics in this study suggest that future climate changes will aggravate the negative influence of soil pyrene pollution on northern conifer forest ecosystems.
Collapse
Affiliation(s)
- Yaodan Zhang
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China
- Department of Environmental and Biological Sciences, University of Eastern Finland, 80101, Joensuu, Finland
| | - Virpi Virjamo
- Department of Environmental and Biological Sciences, University of Eastern Finland, 80101, Joensuu, Finland
| | - Wenchao Du
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China
| | - Ying Yin
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China
| | - Katri Nissinen
- Department of Environmental and Biological Sciences, University of Eastern Finland, 80101, Joensuu, Finland
| | - Line Nybakken
- Department of Environmental and Biological Sciences, University of Eastern Finland, 80101, Joensuu, Finland
- Faculty of Environmental Sciences and Natural Resource Management, Norwegian University of Life Sciences, 1432, Ås, Norway
| | - Hongyan Guo
- State Key Laboratory of Pollution Control and Resource Reuse, School of the Environment, Nanjing University, Nanjing, 210023, China.
| | - Riitta Julkunen-Tiitto
- Department of Environmental and Biological Sciences, University of Eastern Finland, 80101, Joensuu, Finland
| |
Collapse
|
8
|
Yan Q, Gao X, Guo JS, Zhu ZW, Feng GZ. Insights into the molecular mechanism of the responses for Cyperus alternifolius to PhACs stress in constructed wetlands. CHEMOSPHERE 2016; 164:278-289. [PMID: 27592317 DOI: 10.1016/j.chemosphere.2016.08.103] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/24/2016] [Revised: 07/28/2016] [Accepted: 08/22/2016] [Indexed: 06/06/2023]
Abstract
Cyperus alternifolius has been widely reported to be an effective phytoremediation plant in constructed wetland systems (CWs). In this context, an integrated biochemical and proteomic analysis of C. alternifolius leaves exposed to pharmaceutically active compounds (PhACs) in CWs was conducted to understand the mechanism of phytoremediation. The obtained results showed the antioxidant enzyme activities were induced throughout the experiment; however over time, the malondialdehyde content is not significantly different from the control and the photosynthetic pigment contents in plant were subsequently slowly recovered. Therefore, we concluded that reactive oxygen species could be effectively counteracted by the enhanced antioxidant enzyme activities, and therefore the photosynthetic pigments were ultimately restored. Leaf extract proteome maps were obtained through 2-DE, and an average of 55, 49, and 24 spots were significantly altered by 30, 100, and 500 μg/L of PhACs over the control, respectively. Protein expression patterns showed that proteins in C. alternifolius leaves are associated with photosynthesis, energy metabolism, defense, and protein synthesis. Moreover, the most relevant pathways modulated by PhACs were photosynthesis and energy metabolism. The protein expression involved in antioxidant defense and stress response generally increased in all the PhAC treatments. The regulated proteins may favor PhAC degradation in CWs; however, the role of these proteins in degrading PhACs remains unknown; further biochemical studies should be conducted. This study indicated that C. alternifolius can tolerate multiple PhACs.
Collapse
Affiliation(s)
- Qing Yan
- China National Rice Research Institute, Hangzhou 310006, China; Laboratory of Quality & Safety Risk Assessment for Rice (Hangzhou), Ministry of Agriculture, Hangzhou 310006, China.
| | - Xu Gao
- Key Laboratory of the Three Gorges Reservoir Region's Eco -Environments of Ministry of Education, Chongqing University, Chongqing 400044, China
| | - Jin-Song Guo
- Key Laboratory of the Three Gorges Reservoir Region's Eco -Environments of Ministry of Education, Chongqing University, Chongqing 400044, China
| | - Zhi-Wei Zhu
- China National Rice Research Institute, Hangzhou 310006, China; Laboratory of Quality & Safety Risk Assessment for Rice (Hangzhou), Ministry of Agriculture, Hangzhou 310006, China
| | - Guo-Zhong Feng
- China National Rice Research Institute, Hangzhou 310006, China.
| |
Collapse
|
9
|
Utilization of proteomics in experimental field conditions — A case study of poplars growing on grassland affected by long-term starch wastewater irrigation. J Proteomics 2015; 126:200-17. [DOI: 10.1016/j.jprot.2015.06.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/13/2015] [Revised: 05/14/2015] [Accepted: 06/01/2015] [Indexed: 12/12/2022]
|
10
|
Szewczyk R, Soboń A, Słaba M, Długoński J. Mechanism study of alachlor biodegradation by Paecilomyces marquandii with proteomic and metabolomic methods. JOURNAL OF HAZARDOUS MATERIALS 2015; 291:52-64. [PMID: 25765177 DOI: 10.1016/j.jhazmat.2015.02.063] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 01/31/2015] [Accepted: 02/25/2015] [Indexed: 06/04/2023]
Abstract
Alachlor is an herbicide that is widely used worldwide to protect plant crops against broadleaf weeds and annual grasses. However, due to its endocrine-disrupting activity, its application had been banned in the European Union. As described in our earlier work, Paecilomyces marquandii is a microscopic fungus capable of alachlor removal by N-acetyl oxidation. Our current work uses proteomics and metabolomics to gain a better understanding of alachlor biodegradation by the microscopic fungus P. marquandii. The data revealed that the addition of alachlor reduced the culture growth and glucose consumption rates. Moreover, the rates of glycolysis and the tricarboxylic acids (TCA) cycle increased during the initial stage of growth, and there was a shift toward the formation of supplementary materials (UDP-glucose/galactose) and reactive oxygen species (ROS) scavengers (ascorbate). Proteomic analysis revealed that the presence of xenobiotics resulted in a strong upregulation of enzymes related to energy, sugar metabolism and ROS production. However, the unique overexpression of cyanide hydratase in alachlor-containing cultures may implicate this enzyme as the key protein involved in the alachlor biodegradation pathway. The characterization of P. marquandii-mediated alachlor removal in terms of cell structure and function provides a deeper insight into the strategies of microorganisms toward xenobiotic biodegradation.
Collapse
Affiliation(s)
- Rafał Szewczyk
- Department of Industrial Microbiology and Biotechnology, Institute of Microbiology, Biotechnology and Immunology, Faculty of Biology and Environmental Protection, University of Łódź, Banacha 12/16, 90-237 Łódź Poland
| | - Adrian Soboń
- Department of Industrial Microbiology and Biotechnology, Institute of Microbiology, Biotechnology and Immunology, Faculty of Biology and Environmental Protection, University of Łódź, Banacha 12/16, 90-237 Łódź Poland
| | - Mirosława Słaba
- Department of Industrial Microbiology and Biotechnology, Institute of Microbiology, Biotechnology and Immunology, Faculty of Biology and Environmental Protection, University of Łódź, Banacha 12/16, 90-237 Łódź Poland
| | - Jerzy Długoński
- Department of Industrial Microbiology and Biotechnology, Institute of Microbiology, Biotechnology and Immunology, Faculty of Biology and Environmental Protection, University of Łódź, Banacha 12/16, 90-237 Łódź Poland.
| |
Collapse
|