1
|
Girão M, Lequint Z, Rego A, Costa I, Proença DN, Morais PV, Carvalho MF. Nocardiopsis codii sp. nov., and Rhodococcus chondri sp. nov., two novel actinomycetal species isolated from macroalgae collected in the northern Portuguese coast. Int J Syst Evol Microbiol 2024; 74. [PMID: 39255017 DOI: 10.1099/ijsem.0.006483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/11/2024] Open
Abstract
Two novel actinomycetal strains, designated CC-R113T and CC-R104T, were isolated from the tissues of two macroalgae collected on the northern Portuguese coast. Phylogenetic analyses based on the 16S rRNA gene showed that strain CT-R113T belongs to the genus Nocardiopsis, being closely related to Nocardiopsis umidischolae 66/93T and Nocardiopsis tropica VKM Ac-1457T, with 98.65 and 98.39 % sequence similarity, respectively. The clade formed between the three type strains was confirmed by phylogenomic analysis. The genome of strain CT-R113T was 7.27 Mb in size with a G+C content of 71.3 mol %, with average nucleotide identity (ANI) values of 89.59 and 90.14 % with strains 66/93T and VKM Ac-1457T, respectively. The major cellular fatty acids were identified as C18 : 1 ω9c, iso-C16 : 0 and anteiso-C17 : 0. Menaquinone 10 (MK-10) was the major respiratory quinone. Comparative analysis of 16S rRNA gene sequences showed that strain CC-R104T belongs to the genus Rhodococcus and is most closely related to Rhodococcus pyridinivorans DSM 44555T, with 98.24 % sequence similarity. However, phylogenomic analysis revealed that strain CC-R104T establishes a clade with Rhodococcus artemisae DSM 45380T, being more distant from Rhodococcus pyridinivorans DSM 44555T. The genome of strain CC-R104T was 5.34 Mb in size with a G+C content of 67.01 mol%. The ANI value between strains CC-R104T and DSM 45380T was 81.2 % and between strains CC-R104T and DSM 44555T was 81.5 %. The major cellular fatty acids were identified as C18 : 1 ω9c, C16 : 0 and summed feature 3. Menaquinone 8 (MK-8) was the only respiratory quinone. For both CC-R113T and CC-R104T, optimum growth was observed at pH 7.0, 28 °C and 0-5 % NaCl and whole-cell hydrolysates contained meso-diaminopimelic acid as the cell-wall diamino acid. On the basis of phenotypic, molecular and chemotaxonomic characteristics, strains CT-R113T and CC-R104T are considered to represent novel species, for which the names Nocardiopsis codii sp. nov. (type strain CT-R113T=LMG33234T=UCCCB172T) and Rhodococcus chondri sp. nov. (type strain CC-R104T=LMG33233T=UCCCB171T) are proposed.
Collapse
Affiliation(s)
- Mariana Girão
- CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Porto, Portugal
- ICBAS - School of Medicine and Biomedical Sciences, University of Porto, Porto, Portugal
| | - Zoé Lequint
- CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Porto, Portugal
- Polytech Clermont, University Clermont Auvergne, Clermont-Ferrand, France
| | - Adriana Rego
- CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Porto, Portugal
| | - Isabel Costa
- CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Porto, Portugal
| | - Diogo Neves Proença
- Department of Life Sciences, University of Coimbra, CEMMPRE, ARISE, Coimbra, Portugal
| | - Paula V Morais
- Department of Life Sciences, University of Coimbra, CEMMPRE, ARISE, Coimbra, Portugal
| | - Maria F Carvalho
- CIIMAR - Interdisciplinary Centre of Marine and Environmental Research, University of Porto, Porto, Portugal
- ICBAS - School of Medicine and Biomedical Sciences, University of Porto, Porto, Portugal
| |
Collapse
|
2
|
Embarcadero-Jiménez S, Araujo-Palomares CL, Moreno-Perlín T, Ramírez-Álvarez N, Quezada-Hernández C, Batista-García RA, Sanchez-Flores A, Calcáneo-Hernández G, Silva-Jiménez H. Physiology and comparative genomics of the haloalkalitolerant and hydrocarbonoclastic marine strain Rhodococcus ruber MSA14. Arch Microbiol 2024; 206:328. [PMID: 38935150 DOI: 10.1007/s00203-024-04050-z] [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: 04/05/2024] [Revised: 06/07/2024] [Accepted: 06/12/2024] [Indexed: 06/28/2024]
Abstract
Marine hydrocarbonoclastic bacteria can use polycyclic aromatic hydrocarbons as carbon and energy sources, that makes these bacteria highly attractive for bioremediation in oil-polluted waters. However, genomic and metabolic differences between species are still the subject of study to understand the evolution and strategies to degrade PAHs. This study presents Rhodococcus ruber MSA14, an isolated bacterium from marine sediments in Baja California, Mexico, which exhibits adaptability to saline environments, a high level of intrinsic pyrene tolerance (> 5 g L- 1), and efficient degradation of pyrene (0.2 g L- 1) by 30% in 27 days. Additionally, this strain demonstrates versatility by using naphthalene and phenanthrene as individual carbon sources. The genome sequencing of R. ruber MSA14 revealed a genome spanning 5.45 Mbp, a plasmid of 72 kbp, and three putative megaplasmids, lengths between 110 and 470 Kbp. The bioinformatics analysis of the R. ruber MSA14 genome revealed 56 genes that encode enzymes involved in the peripheral and central pathways of aromatic hydrocarbon catabolism, alkane, alkene, and polymer degradation. Within its genome, R. ruber MSA14 possesses genes responsible for salt tolerance and siderophore production. In addition, the genomic analysis of R. ruber MSA14 against 13 reference genomes revealed that all compared strains have at least one gene involved in the alkanes and catechol degradation pathway. Overall, physiological assays and genomic analysis suggest that R. ruber MSA14 is a new haloalkalitolerant and hydrocarbonoclastic strain toward a wide range of hydrocarbons, making it a promising candidate for in-depth characterization studies and bioremediation processes as part of a synthetic microbial consortium, as well as having a better understanding of the catabolic potential and functional diversity among the Rhodococci group.
Collapse
Affiliation(s)
- Salvador Embarcadero-Jiménez
- Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Carretera Tijuana-Ensenada, No. 3917, Fraccionamiento Playitas, Ensenada, Baja California, 22860, México
| | - Cynthia Lizzeth Araujo-Palomares
- Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Carretera Tijuana-Ensenada, No. 3917, Fraccionamiento Playitas, Ensenada, Baja California, 22860, México
| | - Tonatiuh Moreno-Perlín
- Centro de Investigación en Dinámica Celular, Instituto de Investigación en Ciencias Básicas y Aplicadas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa, Cuernavaca, C.P. 62209, México
| | - Nancy Ramírez-Álvarez
- Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Carretera Tijuana-Ensenada, No. 3917, Fraccionamiento Playitas, Ensenada, Baja California, 22860, México
| | - Cristina Quezada-Hernández
- Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Carretera Tijuana-Ensenada, No. 3917, Fraccionamiento Playitas, Ensenada, Baja California, 22860, México
| | - Ramón Alberto Batista-García
- Centro de Investigación en Dinámica Celular, Instituto de Investigación en Ciencias Básicas y Aplicadas, Universidad Autónoma del Estado de Morelos, Av. Universidad 1001, Col. Chamilpa, Cuernavaca, C.P. 62209, México
- Departamento de Biología Animal, Biología Vegetal y Ecología, Facultad de Ciencias Experimentales, Universidad de Jaén, Campus Las Lagunillas s/n, Jaén, 23071, España
| | - Alejandro Sanchez-Flores
- Instituto de Biotecnología, Unidad Universitaria de Secuenciación Masiva y Bioinformática, Universidad Nacional Autónoma de México, Av. Universidad 2001, Col. Chamilpa, Cuernavaca, C.P. 62210, México
| | - Gabriela Calcáneo-Hernández
- Instituto de Fisiología Celular, Universidad Nacional Autónoma de México, Circuito Exterior s/n, Ciudad Universitaria, Coyoacán, Ciudad de México, C.P. 04510, México
| | - Hortencia Silva-Jiménez
- Instituto de Investigaciones Oceanológicas, Universidad Autónoma de Baja California, Carretera Tijuana-Ensenada, No. 3917, Fraccionamiento Playitas, Ensenada, Baja California, 22860, México.
| |
Collapse
|
3
|
Lopes S, Fahr E, Costa J, Silva AB, Lopes MM, Faustino C, Ribeiro MHL. Sustainable trehalose lipid production by Rhodotorula sp.: a promising bio-based alternative. Bioprocess Biosyst Eng 2024; 47:145-157. [PMID: 38103079 DOI: 10.1007/s00449-023-02949-3] [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: 05/09/2023] [Accepted: 11/13/2023] [Indexed: 12/17/2023]
Abstract
Global environmental concerns drive research toward the development of new eco-friendly compounds to replace pollutant chemicals. This study focuses on optimizing the production of trehalose lipids (TLs), which are glycolipid biosurfactants (BS) with various applications like antimicrobial or surface tension reduction. New microorganism sources, growth conditions, medium composition, purification conditions, and physicochemical properties of TLs are studied. Addressing a microscale approach, TLs production was successfully achieved using Rhodotorula sp. and Rhodococcus erythropolis to compare, with different media compositions including glucose-based and salt media supplemented with glycerol, glucose, n-hexadecane, n-dodecane. Liquid-liquid extraction using ethyl acetate and methanol was employed for compound extraction, followed by characterization using analytical methods such as Thin layer chromatography (TLC), High performance liquid chromatography (HPLC), and UHPLC. The produced TLs exhibited a minimum surface tension of 47 mN/m and a critical micellar concentration of 4.4 mg/mL. This study also identified Rhodotorula sp. as a new sustainable producer of TLs with improved productivity.
Collapse
Affiliation(s)
- Sara Lopes
- Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
| | - Eva Fahr
- Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
| | - João Costa
- Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
| | - Andreia B Silva
- Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
- Department of Pharmaceutical Sciences and Medicines, Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
| | - M Manuel Lopes
- Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
| | - Célia Faustino
- Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
- Department of Pharmaceutical Sciences and Medicines, Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal
| | - Maria H L Ribeiro
- Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal.
- Research Institute for Medicines (iMed.ULisboa), Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal.
- Department of Pharmaceutical Sciences and Medicines, Faculty of Pharmacy, Universidade Lisboa, Av. Prof. Gama Pinto, 1649-003, Lisbon, Portugal.
| |
Collapse
|
4
|
Pereira ARM, Hacha RR, Torem ML, Merma AG, Silvas FP, A A. Direct hematite flotation from an iron ore tailing using an innovative biosurfactant. SEP SCI TECHNOL 2021. [DOI: 10.1080/01496395.2021.1873374] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Affiliation(s)
- Andreza Rafaela Morais Pereira
- Department of Chemical Engineering and Materials, Pontifical Catholic University of Rio De Janeiro Rua Marquês de São Vicente 225, Gávea, Brazil
| | - Ronald Rojas Hacha
- Department of Chemical Engineering and Materials, Pontifical Catholic University of Rio De Janeiro Rua Marquês de São Vicente 225, Gávea, Brazil
| | - Maurício Leonardo Torem
- Department of Chemical Engineering and Materials, Pontifical Catholic University of Rio De Janeiro Rua Marquês de São Vicente 225, Gávea, Brazil
| | - Antonio Gutierrez Merma
- Department of Chemical Engineering and Materials, Pontifical Catholic University of Rio De Janeiro Rua Marquês de São Vicente 225, Gávea, Brazil
| | | | - Abhilash A
- CSIR-National Metallurgical Laboratory, Jamshedpur, India
| |
Collapse
|
5
|
Sinha RK, Krishnan KP, Kurian PJ. Complete genome sequence and comparative genome analysis of Alcanivorax sp. IO_7, a marine alkane-degrading bacterium isolated from hydrothermally-influenced deep seawater of southwest Indian ridge. Genomics 2020; 113:884-891. [PMID: 33096255 DOI: 10.1016/j.ygeno.2020.10.020] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2020] [Revised: 09/16/2020] [Accepted: 10/16/2020] [Indexed: 11/29/2022]
Abstract
Genome of Alcanivorax sp. IO_7, an alkane degrading deep-sea bacteria isolated from hydrothermally-influenced Southwest Indian Ridge was sequenced and analysed. Genomic data mining revealed gene clusters for degrading n-alkane and cycloalkanes, including biosurfactant production. The strain was shown to grow on hexadecane as its sole carbon source, supporting the findings of genomic analysis. Presence of cyclohexanone monooxygenase among genomic islands suggest that this strain may have used gene transfer to enhance its hydrocarbon degradation ability. Genes encoding for heavy metal resistance, multidrug resistance and multiple natural product biosynthesis crucial for survival in the hydrothermally influenced deep sea environment were detected. In our comparative genome analysis, it was evident that marine Alcanivorax strains contain a suite of enzymes for n-alkane and haloalkanoate degradation. Comparative genome and genomic synteny analysis provided insights into the physiological features and adaptation strategies of Alcanivorax sp. IO_7 in the deep-sea hydrothermal environment.
Collapse
Affiliation(s)
- Rupesh Kumar Sinha
- National Centre for Polar and Ocean Research, Ministry of Earth Sciences, Headland Sada, Vasco da Gama 403804, Goa, India.
| | - K P Krishnan
- National Centre for Polar and Ocean Research, Ministry of Earth Sciences, Headland Sada, Vasco da Gama 403804, Goa, India.
| | - P John Kurian
- National Centre for Polar and Ocean Research, Ministry of Earth Sciences, Headland Sada, Vasco da Gama 403804, Goa, India.
| |
Collapse
|
6
|
Wang L, Mazzola M. Field Evaluation of Reduced Rate Brassicaceae Seed Meal Amendment and Rootstock Genotype on the Microbiome and Control of Apple Replant Disease. PHYTOPATHOLOGY 2019; 109:1378-1391. [PMID: 30887889 DOI: 10.1094/phyto-02-19-0045-r] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
An orchard field trial was conducted to assess the utility of reduced rate Brassicaceae seed meal (SM) amendment in concert with specific rootstock genotypes for effective control of apple replant disease. Three amendment rates of a 1:1 formulation of Brassica juncea-Sinapis alba SM were compared with preplant 1,3-dichloropropene/chloropicrin soil fumigation for disease control efficacy. When applied at the highest rate (6.6 t ha-1) in the spring of planting, SM caused significant phytotoxicity and tree mortality, which was higher for Gala/M.26 than for Gala/G.41 but was not observed at SM application rates of 2.2 or 4.4 t ha-1. SM treatment resulted in growth and yield increases of Gala/M.26 and Gala/G.41 trees in a manner similar to the fumigation treatment and significantly greater than the no treatment control. Tree growth in soils treated with SM at 4.4 t ha-1 was similar or superior to that obtained with SM at 6.6 t ha-1 and superior to that attained at an SM application rate of 2.2 t ha-1. Soil fumigation and all SM treatments reduced Pratylenchus penetrans root infestation relative to the control treatment at the end of the initial growing season. Lesion nematode root densities in the fumigation treatment, but not SM treatments, rapidly recovered and were indistinguishable from the control at the end of the second growing season. Soil fumigation and all SM treatments significantly suppressed Pythium spp. root infection relative to the control. Trees grafted to rootstock G.41 possessed lower P. penetrans root densities relative to trees grafted to rootstock M.26. One year after planting, composition of microbial communities from SM-amended soils was distinct from those detected in control and fumigated soils, and the differences were amplified with increasing SM application rate. Specific fungal and bacterial phyla associated with suppression of plant pathogens were more abundant in SM-treated soil relative to the control, and they were similar in abundance in 4.4- and 6.6-t ha-1 SM treatments. Findings from this study demonstrated that use of the appropriate apple rootstock genotype will allow for effective replant disease control at SM application rates significantly less than that utilized previously (6.6 t ha-1).
Collapse
Affiliation(s)
- Likun Wang
- 1Department of Plant Pathology, Washington State University, Pullman, WA 99164
| | - Mark Mazzola
- 2U.S. Department of Agriculture-Agricultural Research Service Tree Fruit Research Laboratory, Wenatchee, WA 98801
| |
Collapse
|
7
|
He C, Li Y, Huang C, Chen F, Ma Y. Genome Sequence and Metabolic Analysis of a Fluoranthene-Degrading Strain Pseudomonas aeruginosa DN1. Front Microbiol 2018; 9:2595. [PMID: 30429835 PMCID: PMC6220107 DOI: 10.3389/fmicb.2018.02595] [Citation(s) in RCA: 26] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2018] [Accepted: 10/11/2018] [Indexed: 11/28/2022] Open
Abstract
Pseudomonas aeruginosa DN1, isolated from petroleum-contaminated soil, showed excellent degradation ability toward diverse polycyclic aromatic hydrocarbons (PAHs). Many studies have been done to improve its degradation ability. However, the molecular mechanisms of PAHs degradation in DN1 strain are unclear. In this study, the whole genome of DN1 strain was sequenced and analyzed. Its genome contains 6,641,902 bp and encodes 6,684 putative open reading frames (ORFs), which has the largest genome in almost all the comparative Pseudomonas strains. Results of gene annotation showed that this strain harbored over 100 candidate genes involved in PAHs degradation, including those encoding 25 dioxygenases, four ring-hydroxylating dioxygenases, five ring-cleaving dioxygenases, and various catabolic enzymes, transcriptional regulators, and transporters in the degradation pathways. In addition, gene knockout experiments revealed that the disruption of some key PAHs degradation genes in DN1 strain, such as catA, pcaG, pcaH, and rhdA, did not completely inhibit fluoranthene degradation, even though their degradative rate reduced to some extent. Three intermediate metabolites, including 9-hydroxyfluorene, 1-acenaphthenone, and 1, 8-naphthalic anhydride, were identified as the dominating intermediates in presence of 50 μg/mL fluoranthene as the sole carbon source according to gas chromatography mass spectrometry analysis. Taken together, the genomic and metabolic analysis indicated that the fluoranthene degradation by DN1 strain was initiated by dioxygenation at the C-1, 2-, C-2, 3-, and C-7, 8- positions. These results provide new insights into the genomic plasticity and environmental adaptation of DN1 strain.
Collapse
Affiliation(s)
- Chunqiu He
- Shaanxi Provincial Key Laboratory of Biotechnology, Key Laboratory of Resources Biology and Biotechnology in Western China, Ministry of Education, College of Life Science, Northwest University, Xi'an, China
| | - Yanpeng Li
- Shaanxi Provincial Key Laboratory of Biotechnology, Key Laboratory of Resources Biology and Biotechnology in Western China, Ministry of Education, College of Life Science, Northwest University, Xi'an, China
| | - Chao Huang
- Shaanxi Provincial Key Laboratory of Biotechnology, Key Laboratory of Resources Biology and Biotechnology in Western China, Ministry of Education, College of Life Science, Northwest University, Xi'an, China
| | - Fulin Chen
- Shaanxi Provincial Key Laboratory of Biotechnology, Key Laboratory of Resources Biology and Biotechnology in Western China, Ministry of Education, College of Life Science, Northwest University, Xi'an, China
| | - Yanling Ma
- Shaanxi Provincial Key Laboratory of Biotechnology, Key Laboratory of Resources Biology and Biotechnology in Western China, Ministry of Education, College of Life Science, Northwest University, Xi'an, China
| |
Collapse
|
8
|
Tarabukin D, Torlopov M, Shchemelinina T, Anchugova E, Shergina N, Istomina E, Belyy V. Biosorbents based on esterified starch carrying immobilized oil-degrading microorganisms. J Biotechnol 2017; 260:31-37. [DOI: 10.1016/j.jbiotec.2017.08.024] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/02/2017] [Revised: 08/16/2017] [Accepted: 08/29/2017] [Indexed: 10/19/2022]
|
9
|
Suryanti V, Hastuti S, Andriani D. Optimization of biosurfactant production in soybean oil byrhodococcus rhodochrousand its utilization in remediation of cadmium-contaminated solution. ACTA ACUST UNITED AC 2016. [DOI: 10.1088/1757-899x/107/1/012018] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
|
10
|
Kügler JH, Le Roes-Hill M, Syldatk C, Hausmann R. Surfactants tailored by the class Actinobacteria. Front Microbiol 2015; 6:212. [PMID: 25852670 PMCID: PMC4365757 DOI: 10.3389/fmicb.2015.00212] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2015] [Accepted: 03/02/2015] [Indexed: 12/20/2022] Open
Abstract
Globally the change towards the establishment of a bio-based economy has resulted in an increased need for bio-based applications. This, in turn, has served as a driving force for the discovery and application of novel biosurfactants. The class Actinobacteria represents a vast group of microorganisms with the ability to produce a diverse range of secondary metabolites, including surfactants. Understanding the extensive nature of the biosurfactants produced by actinobacterial strains can assist in finding novel biosurfactants with new potential applications. This review therefore presents a comprehensive overview of the knowledge available on actinobacterial surfactants, the chemical structures that have been completely or partly elucidated, as well as the identity of the biosurfactant-producing strains. Producer strains of not yet elucidated compounds are discussed, as well as the original habitats of all the producer strains, which seems to indicate that biosurfactant production is environmentally driven. Methodology applied in the isolation, purification and structural elucidation of the different types of surface active compounds, as well as surfactant activity tests, are also discussed. Overall, actinobacterial surfactants can be summarized to include the dominantly occurring trehalose-comprising surfactants, other non-trehalose containing glycolipids, lipopeptides and the more rare actinobacterial surfactants. The lack of structural information on a large proportion of actinobacterial surfactants should be considered as a driving force to further explore the abundance and diversity of these compounds. This would allow for a better understanding of actinobacterial surface active compounds and their potential for biotechnological application.
Collapse
Affiliation(s)
- Johannes H. Kügler
- Technical Biology, Institute of Process Engineering in Life Sciences, Karlsruhe Institute of TechnologyKarlsruhe, Germany
| | - Marilize Le Roes-Hill
- Biocatalysis and Technical Biology Research Group, Institute of Biomedical and Microbial Biotechnology, Cape Peninsula University of TechnologyBellville, South Africa
| | - Christoph Syldatk
- Technical Biology, Institute of Process Engineering in Life Sciences, Karlsruhe Institute of TechnologyKarlsruhe, Germany
| | - Rudolf Hausmann
- Bioprocess Engineering, Institute of Food Science and Biotechnology, University of HohenheimStuttgart, Germany
| |
Collapse
|
11
|
Cao J, Lai Q, Yuan J, Shao Z. Genomic and metabolic analysis of fluoranthene degradation pathway in Celeribacter indicus P73T. Sci Rep 2015; 5:7741. [PMID: 25582347 PMCID: PMC4291564 DOI: 10.1038/srep07741] [Citation(s) in RCA: 51] [Impact Index Per Article: 5.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/16/2014] [Accepted: 11/20/2014] [Indexed: 01/22/2023] Open
Abstract
Celeribacter indicus P73(T), isolated from deep-sea sediment from the Indian Ocean, is capable of degrading a wide range of polycyclic aromatic hydrocarbons (PAHs) and is the first fluoranthene-degrading bacterium within the family Rhodobacteraceae. Here, the complete genome sequence of strain P73(T) is presented and analyzed. Besides a 4.5-Mb circular chromosome, strain P73(T) carries five plasmids, and encodes 4827 predicted protein-coding sequences. One hundred and thirty-eight genes, including 14 dioxygenase genes, were predicted to be involved in the degradation of aromatic compounds, and most of these genes are clustered in four regions. P73_0346 is the first fluoranthene 7,8-dioxygenase to be discovered and the first fluoranthene dioxygenase within the toluene/biphenyl family. The degradative genes in regions B and D in P73(T) are absent in Celeribacter baekdonensis B30, which cannot degrade PAHs. Four intermediate metabolites [acenaphthylene-1(2H)-one, acenaphthenequinone, 1,2-dihydroxyacenaphthylene, and 1,8-naphthalic anhydride] of fluoranthene degradation by strain P73(T) were detected as the main intermediates, indicating that the degradation of fluoranthene in P73(T) was initiated by dioxygenation at the C-7,8 positions. Based on the genomic and metabolitic results, we propose a C-7,8 dioxygenation pathway in which fluoranthene is mineralized to TCA cycle intermediates.
Collapse
Affiliation(s)
- Junwei Cao
- State Key Laboratory Breeding Base of Marine Genetic Resources; Key Laboratory of Marine Genetic Resources, The Third Institute of State Oceanic Administration; Key Laboratory of Marine Genetic Resources of Fujian Province; Collaborative Innovation Center of Deep Sea Biology; Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Xiamen 361005, China
- School of Municipal and Environmental Engineering, Harbin Institute of Technology, Harbin 150090, China
| | - Qiliang Lai
- State Key Laboratory Breeding Base of Marine Genetic Resources; Key Laboratory of Marine Genetic Resources, The Third Institute of State Oceanic Administration; Key Laboratory of Marine Genetic Resources of Fujian Province; Collaborative Innovation Center of Deep Sea Biology; Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Xiamen 361005, China
| | - Jun Yuan
- State Key Laboratory Breeding Base of Marine Genetic Resources; Key Laboratory of Marine Genetic Resources, The Third Institute of State Oceanic Administration; Key Laboratory of Marine Genetic Resources of Fujian Province; Collaborative Innovation Center of Deep Sea Biology; Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Xiamen 361005, China
| | - Zongze Shao
- State Key Laboratory Breeding Base of Marine Genetic Resources; Key Laboratory of Marine Genetic Resources, The Third Institute of State Oceanic Administration; Key Laboratory of Marine Genetic Resources of Fujian Province; Collaborative Innovation Center of Deep Sea Biology; Collaborative Innovation Center for Exploitation and Utilization of Marine Biological Resources, Xiamen 361005, China
| |
Collapse
|
12
|
Drotaverine Hydrochloride Degradation Using Cyst-like Dormant Cells of Rhodococcus ruber. Curr Microbiol 2014; 70:307-14. [DOI: 10.1007/s00284-014-0718-1] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2014] [Accepted: 09/18/2014] [Indexed: 12/12/2022]
|
13
|
Serebrennikova MK, Kuyukina MS, Krivoruchko AV, Ivshina IB. Adaptation of coimmobilized Rhodococcus cells to oil hydrocarbons in a column bioreactor. APPL BIOCHEM MICRO+ 2014. [DOI: 10.1134/s0003683814030144] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
14
|
Biosurfactant-enhanced immobilization of hydrocarbon-oxidizing Rhodococcus ruber on sawdust. Appl Microbiol Biotechnol 2013; 97:5315-27. [DOI: 10.1007/s00253-013-4869-y] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/01/2013] [Revised: 03/17/2013] [Accepted: 03/19/2013] [Indexed: 10/27/2022]
|
15
|
Biodegradation of 4-nitrotoluene with biosurfactant production by Rhodococcus pyridinivorans NT2: metabolic pathway, cell surface properties and toxicological characterization. Biodegradation 2013; 24:775-93. [DOI: 10.1007/s10532-013-9627-4] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2012] [Accepted: 02/01/2013] [Indexed: 10/27/2022]
|
16
|
Rubtsova EV, Kuyukina MS, Ivshina IB. Effect of cultivation conditions on the adhesive activity of Rhodococcus cells towards n-Hexadecane. APPL BIOCHEM MICRO+ 2012. [DOI: 10.1134/s0003683812050110] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
|
17
|
Biodegradation of drotaverine hydrochloride by free and immobilized cells of Rhodococcus rhodochrous IEGM 608. World J Microbiol Biotechnol 2012; 28:2997-3006. [DOI: 10.1007/s11274-012-1110-6] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2012] [Accepted: 06/13/2012] [Indexed: 10/28/2022]
|