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Sphingomonas folii sp. nov., Sphingomonas citri sp. nov. and Sphingomonas citricola sp. nov., isolated from citrus phyllosphere. Int J Syst Evol Microbiol 2022; 72. [DOI: 10.1099/ijsem.0.005492] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
Three novel Gram-stain-negative, aerobic and rod-shaped bacterial strains, designated RHCKR7T, RRHST34T and RHCKR47T, were isolated from phyllosphere of healthy citrus collected in Renhua County, Guangdong Province, PR China. Phylogenetic analyses showed that they belonged to the genus
Sphingomonas
, among which both strains RHCKR7T and RRHST34T showed a close relationship with
Sphingomonas yunnanensis
YIM 003T with 16S rRNA gene similarity of 99.0 and 99.1%, respectively, and the similarity between the two novel strains was 99.2%, meanwhile strain RHCKR47T was most closely related to
Sphingomonas palmae
KACC 17591T (99.5%). Genome-derived average nucleotide identity (ANI) and digital DNA–DNA hybridization (dDDH) values between closely related novel strains RHCKR7T and RRHST34T were 90.43 and 40.80 %, respectively, and their most closely related type strain,
S. yunnanensis
YIM 003T, showed 90.43 % ANI and 40.7 % dDDH with RHCKR7T and 90.21 % and 42.9 % with RRHST34T, respectively, and the corresponding values between strain RHCKR47T and
S. palmae
KACC 17591T were 85.53 % and 29.30%, respectively. They all took C14 : 0 2-OH and summed feature 8 (C18 : 1
ω6c and/or C18 : 1
ω7c) as the major fatty acids, and ubiquinone 10 as the predominant respiratory quinone. The major polar lipids contained sphingoglycolipid, phosphatidylglycerol, diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylcholine and unidentified phospholipids. sym-Homospermidine was the major polyamine. Based on phenotypic, genotypic and chemotaxonomic analyses, the new isolates should be considered as representing three novel species of the genus
Sphingomonas
, for which the names Sphingomonas folli sp. nov., Sphingomonas citri sp. nov. and Sphingomonas citricola sp. nov. are proposed with RHCKR7T (=GDMCC 1.2663T=JCM 34794T), RRHST34T (=GDMCC 1.2665T=JCM 34796T) and RHCKR47T (=GDMCC 1.2664T=JCM 34795T) as the type strains, respectively.
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Luo Y, Zhou M, Wang F, Sheng H. Sphingomonas psychrotolerans sp. nov., isolated from root surface of Leontopodium leontopodioides in the Tianshan Mountains, Xinjiang, China. Int J Syst Evol Microbiol 2022; 72. [DOI: 10.1099/ijsem.0.005396] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A novel rod-shaped, Gram-stain-negative, aerobic bacterial strain, designated Cra20T, was isolated from the root surface of Leontopodium leontopodioides collected in the Tianshan Mountains, Xinjiang, PR China. Phylogenetic analysis based on 16S rRNA gene sequences, indicated that strain Cra20T was affiliated with the genus
Sphingomonas
, and was most closely related to
Sphingomonas gei
ZFGT-11T (99.0 %),
Sphingomonas naasensis
KIS18-15T (97.8%) and
Sphingomonas kyeonggiensis
THG-DT81T (97.2 %). The average nucleotide identity values between strain Cra20T,
S. gei
ZFGT-11T,
S. naasensis
KIS18-15T and
S. kyeonggiensis
THG-DT81T were 86.2, 84.2 and 78.2 %, respectively. The genomic DNA G+C content of strain Cra20T was 65.6 mol% (whole genome sequence), and Q-10 was the predominant ubiquinone. The major cellular fatty acids of strain Cra20T were summed feature 8 (comprising C18 : 1
ω6c and/or C18 : 1
ω7c, 67.3 %) and C14 : 0 2-OH (6.4 %). On the basis of genotypic, phenotypic and biochemical data, strain Cra20T is considered to represent a novel species of the genus
Sphingomonas
, for which the name Sphingomonas psychrotolerans sp. nov. is proposed. The type strain is Cra20T (=CGMCC 1.15510T=NBRC 112697T).
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Affiliation(s)
- Yang Luo
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China
- School of Life Sciences, Shangrao Normal University, Shangrao Agricultural Technology Innovation Research Institute, Shangrao 334000, PR China
| | - Meng Zhou
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China
- School of Life Sciences, Shangrao Normal University, Shangrao Agricultural Technology Innovation Research Institute, Shangrao 334000, PR China
| | - Fang Wang
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China
| | - Hongmei Sheng
- Ministry of Education Key Laboratory of Cell Activities and Stress Adaptations, School of Life Sciences, Lanzhou University, Lanzhou 730000, PR China
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Huang H, Lin J, Wang W, Li S. Biopolymers Produced by Sphingomonas Strains and Their Potential Applications in Petroleum Production. Polymers (Basel) 2022; 14:polym14091920. [PMID: 35567089 PMCID: PMC9104527 DOI: 10.3390/polym14091920] [Citation(s) in RCA: 14] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 05/02/2022] [Accepted: 05/03/2022] [Indexed: 02/04/2023] Open
Abstract
The genus Sphingomonas was established by Yabuuchi et al. in 1990, and has attracted much attention in recent years due to its unique ability to degrade environmental pollutants. Some Sphingomonas species can secrete high-molecular-weight extracellular polymers called sphingans, most of which are acidic heteropolysaccharides. Typical sphingans include welan gum, gellan gum, and diutan gum. Most sphingans have a typical, conserved main chain structure, and differences of side chain groups lead to different rheological characteristics, such as shear thinning, temperature or salt resistance, and viscoelasticity. In petroleum production applications, sphingans, and their structurally modified derivatives can replace partially hydrolyzed polyacrylamide (HPAM) for enhanced oil recovery (EOR) in high-temperature and high-salt reservoirs, while also being able to replace guar gum as a fracturing fluid thickener. This paper focuses on the applications of sphingans and their derivatives in EOR.
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Affiliation(s)
- Haolin Huang
- College of Biotechnology and Pharmaceutical Engineering, Jiangpu Campus, Nanjing Tech University, Nanjing 211816, China;
| | - Junzhang Lin
- Research Institute of Petroleum Engineering and Technology, Shengli Oilfield Company, Sinopec, Dongying 257000, China; (J.L.); (W.W.)
| | - Weidong Wang
- Research Institute of Petroleum Engineering and Technology, Shengli Oilfield Company, Sinopec, Dongying 257000, China; (J.L.); (W.W.)
| | - Shuang Li
- College of Biotechnology and Pharmaceutical Engineering, Jiangpu Campus, Nanjing Tech University, Nanjing 211816, China;
- Correspondence: ; Tel./Fax: +86-25-5813-9942
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Differential Glycosylation Levels in Saliva from Patients with Lung or Breast Cancer: A Preliminary Assessment for Early Diagnostic Purposes. Metabolites 2021; 11:metabo11090566. [PMID: 34564382 PMCID: PMC8471868 DOI: 10.3390/metabo11090566] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2021] [Revised: 08/19/2021] [Accepted: 08/20/2021] [Indexed: 12/27/2022] Open
Abstract
Glycans play a fundamental role in several biological processes, such as cell-cell adhesion, signaling, and recognition. Similarly, abnormal glycosylation is involved in many pathological processes, among which include tumor growth and progression. Several highly glycosylated proteins found in blood are currently used in clinical practice as cancer biomarkers (e.g., CA125, PSA, and CA19-9). The development of novel non-invasive diagnostic procedures would greatly simplify the screening and discovery of pathologies at an early stage, thus also allowing for simpler treatment and a higher success rate. In this observational study carried out on 68 subjects diagnosed with either breast or lung cancer and 34 healthy volunteers, we hydrolyzed the glycoproteins in saliva and quantified the obtained free sugars (fucose, mannose, galactose, glucosamine, and galactosamine) by using high-performance anion-exchange chromatography with pulsed-amperometric detection (HPAEC-PAD). The glycosidic profiles were compared by using multivariate statistical analysis, showing differential glycosylation patterns among the three categories. Furthermore, Receiver Operating Characteristics (ROC) analysis allowed obtaining a reliable and minimally invasive protocol able to discriminate between healthy and pathological subjects.
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Banerjee A, Sarkar S, Govil T, González-Faune P, Cabrera-Barjas G, Bandopadhyay R, Salem DR, Sani RK. Extremophilic Exopolysaccharides: Biotechnologies and Wastewater Remediation. Front Microbiol 2021; 12:721365. [PMID: 34489911 PMCID: PMC8417407 DOI: 10.3389/fmicb.2021.721365] [Citation(s) in RCA: 16] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2021] [Accepted: 07/26/2021] [Indexed: 01/18/2023] Open
Abstract
Various microorganisms thrive under extreme environments, like hot springs, hydrothermal vents, deep marine ecosystems, hyperacid lakes, acid mine drainage, high UV exposure, and more. To survive against the deleterious effect of these extreme circumstances, they form a network of biofilm where exopolysaccharides (EPSs) comprise a substantial part. The EPSs are often polyanionic due to different functional groups in their structural backbone, including uronic acids, sulfated units, and phosphate groups. Altogether, these chemical groups provide EPSs with a negative charge allowing them to (a) act as ligands toward dissolved cations as well as trace, and toxic metals; (b) be tolerant to the presence of salts, surfactants, and alpha-hydroxyl acids; and (c) interface the solubilization of hydrocarbons. Owing to their unique structural and functional characteristics, EPSs are anticipated to be utilized industrially to remediation of metals, crude oil, and hydrocarbons from contaminated wastewaters, mines, and oil spills. The biotechnological advantages of extremophilic EPSs are more diverse than traditional biopolymers. The present review aims at discussing the mechanisms and strategies for using EPSs from extremophiles in industries and environment bioremediation. Additionally, the potential of EPSs as fascinating biomaterials to mediate biogenic nanoparticles synthesis and treat multicomponent water contaminants is discussed.
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Affiliation(s)
- Aparna Banerjee
- Centro de investigación en Estudios Avanzados del Maule (CIEAM), Vicerrectoría de Investigación Y Posgrado, Universidad Católica del Maule, Talca, Chile
- Centro de Biotecnología de los Recursos Naturales (CENBio), Facultad de Ciencias Agrarias Y Forestales, Universidad Católica del Maule, Talca, Chile
| | - Shrabana Sarkar
- Department of Botany, UGC-Center of Advanced Study, The University of Burdwan, Golapbag, Burdwan, India
| | - Tanvi Govil
- Department of Chemical and Biological Engineering, South Dakota Mines, Rapid City, SD, United States
- Composite and Nanocomposite Advanced Manufacturing – Biomaterials Center, Rapid City, SD, United States
| | - Patricio González-Faune
- Escuela Ingeniería en Biotecnología, Facultad de Ciencias Agrarias Y Forestales, Universidad Católica del Maule, Talca, Chile
| | | | - Rajib Bandopadhyay
- Department of Botany, UGC-Center of Advanced Study, The University of Burdwan, Golapbag, Burdwan, India
| | - David R. Salem
- Department of Botany, UGC-Center of Advanced Study, The University of Burdwan, Golapbag, Burdwan, India
- Department of Chemical and Biological Engineering, South Dakota Mines, Rapid City, SD, United States
- Department of Materials and Metallurgical Engineering, South Dakota Mines, Rapid City, SD, United States
| | - Rajesh K. Sani
- Department of Botany, UGC-Center of Advanced Study, The University of Burdwan, Golapbag, Burdwan, India
- Department of Chemical and Biological Engineering, South Dakota Mines, Rapid City, SD, United States
- BuGReMeDEE Consortium, South Dakota School of Mines and Technology, Rapid City, SD, United States
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Characterization of vB_StuS_MMDA13, a Newly Discovered Bacteriophage Infecting the Agar-Degrading Species Sphingomonas turrisvirgatae. Viruses 2020; 12:v12080894. [PMID: 32824138 PMCID: PMC7472734 DOI: 10.3390/v12080894] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/07/2020] [Accepted: 08/13/2020] [Indexed: 01/21/2023] Open
Abstract
Members of Sphingomonas genus have gained a notable interest for their use in a wide range of biotechnological applications, ranging from bioremediation to the production of valuable compounds of industrial interest. To date, knowledge on phages targeting Sphingomonas spp. are still scarce. Here, we describe and characterize a lytic bacteriophage, named vB_StuS_MMDA13, able to infect the Sphingomonas turrisvirgatae MCT13 type strain. Physiological characterization demonstrated that vB_StuS_MMDA13 has a narrow host range, a long latency period, a low burst size, and it is overall stable to both temperature and pH variations. The phage has a double-stranded DNA genome of 63,743 bp, with 89 open reading frames arranged in two opposite arms separated by a 1186 bp non-coding region and shows a very low global similarity to any other known phages. Interestingly, vB_StuS_MMDA13 is endowed with an original nucleotide modification biosynthetic gene cluster, which greatly differs from those of its most closely related phages of the Nipunavirus genus. vB_StuS_MMDA13 is the first characterized lytic bacteriophage of the Siphoviridae family infecting members of the Sphingomonas genus.
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Tufariello M, Anglana C, Crupi P, Virtuosi I, Fiume P, Di Terlizzi B, Moselhy N, Attay HA, Pati S, Logrieco AF, Mita G, Bleve G. Efficacy of yeast starters to drive and improve Picual, Manzanilla and Kalamàta table olive fermentation. JOURNAL OF THE SCIENCE OF FOOD AND AGRICULTURE 2019; 99:2504-2512. [PMID: 30379330 DOI: 10.1002/jsfa.9460] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/27/2018] [Revised: 08/28/2018] [Accepted: 10/28/2018] [Indexed: 06/08/2023]
Abstract
BACKGROUND Table olive fermentation is an unpredictable process and frequently performed using traditional practices often inadequate to obtain products with acceptable quality and safety standards. In the present study, the efficacy of selected yeast strains as starters to drive fermentations of green and black table olives by the Greek method was investigated. Pilot-scale production by spontaneous fermentation as a control, olives started with previously selected Saccharomyces cerevisiae strains and fermentation driven by commercial S. cerevisiae baker's yeast strain were carried out for each of Manzanilla, Picual and Kalamàta table olive cultivars. RESULTS Time of fermentation was significantly shortened to 40 days to complete the transformation process for all three tested cultivars. Inoculated table olives were enhanced in their organoleptic and nutritional properties in comparison with corresponding samples obtained by spontaneous fermentation. The use of starters was also able to improve safety traits of table olives in terms of biogenic amine reduction as well as absence of undesired microorganisms at the end of the process. CONCLUSIONS Autochthonous, but also non-autochthonous, yeasts can be used to start and control table olive fermentations and can significantly improve quality and safety aspects of table olives produced by many smallholder farmers. © 2018 Society of Chemical Industry.
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Affiliation(s)
- Maria Tufariello
- Consiglio Nazionale delle Ricerche - Istituto di Scienze delle Produzioni Alimentari, Unità Operativa di Lecce, Lecce, Italy
| | - Chiara Anglana
- Consiglio Nazionale delle Ricerche - Istituto di Scienze delle Produzioni Alimentari, Unità Operativa di Lecce, Lecce, Italy
| | - Pasquale Crupi
- Consiglio per la Ricerca e la Sperimentazione in Agricoltura - Centro di Ricerca Viticoltura ed Enologia, Turi (BA), Italy
| | | | | | | | | | | | - Sandra Pati
- Dipartimento di Scienze Agrarie, degli Alimenti e dell'Ambiente, Università di Foggia, Foggia, Italy
| | - Antonio F Logrieco
- Consiglio Nazionale delle Ricerche - Istituto di Scienze delle Produzioni Alimentari, Bari, Italy
| | - Giovanni Mita
- Consiglio Nazionale delle Ricerche - Istituto di Scienze delle Produzioni Alimentari, Unità Operativa di Lecce, Lecce, Italy
| | - Gianluca Bleve
- Consiglio Nazionale delle Ricerche - Istituto di Scienze delle Produzioni Alimentari, Unità Operativa di Lecce, Lecce, Italy
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Genomic Characterization of a Newly Isolated Rhizobacteria Sphingomonas panacis Reveals Plant Growth Promoting Effect to Rice. BIOTECHNOL BIOPROC E 2019. [DOI: 10.1007/s12257-018-0386-2] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
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9
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Pizzolante G, Durante M, Rizzo D, Di Salvo M, Tredici SM, Tufariello M, De Paolis A, Talà A, Mita G, Alifano P, De Benedetto GE. Characterization of two Pantoea strains isolated from extra-virgin olive oil. AMB Express 2018; 8:113. [PMID: 29992518 PMCID: PMC6039349 DOI: 10.1186/s13568-018-0642-z] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Accepted: 07/05/2018] [Indexed: 11/10/2022] Open
Abstract
The olive oil is an unfavorable substrate for microbial survival and growth. Only few microorganisms use olive oil fatty acids as carbon and energy sources, and survive in the presence of olive oil anti-microbial components. In this study, we have evaluated the occurrence of microorganisms in 1-year-stored extra-virgin olive oil samples. We detected the presence of bacterial and yeast species with a recurrence of the bacterium Stenotrophomonas rhizophila and yeast Sporobolomyces roseus. We then assayed the ability of all isolates to grow in a mineral medium supplemented with a commercial extra-virgin olive oil as a sole carbon and energy source, and analyzed the utilization of olive oil fatty acids during their growth. We finally focused on two bacterial isolates belonging to the species Pantoea septica. Both these isolates produce carotenoids, and one of them synthesizes bioemulsifiers enabling the bacteria to better survive/growth in this unfavorable substrate. Analyses point to a mixture of glycolipids with glucose, galactose and xylose as carbohydrate moieties whereas the lipid domain was constituted by C6-C10 β-hydroxy carboxylic acids.
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Affiliation(s)
- Graziano Pizzolante
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, Via Provinciale Monteroni 165, 73100 Lecce, Italy
| | - Miriana Durante
- Istituto di Scienze Delle Produzioni Alimentari-CNR, Via Provinciale Monteroni 165, 73100 Lecce, Italy
| | - Daniela Rizzo
- Laboratory of Analytical and Isotopic Mass Spectrometry, Department of Cultural Heritage, University of Salento, Lecce, Italy
| | - Marco Di Salvo
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, Via Provinciale Monteroni 165, 73100 Lecce, Italy
| | - Salvatore Maurizio Tredici
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, Via Provinciale Monteroni 165, 73100 Lecce, Italy
| | - Maria Tufariello
- Istituto di Scienze Delle Produzioni Alimentari-CNR, Via Provinciale Monteroni 165, 73100 Lecce, Italy
| | - Angelo De Paolis
- Istituto di Scienze Delle Produzioni Alimentari-CNR, Via Provinciale Monteroni 165, 73100 Lecce, Italy
| | - Adelfia Talà
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, Via Provinciale Monteroni 165, 73100 Lecce, Italy
| | - Giovanni Mita
- Istituto di Scienze Delle Produzioni Alimentari-CNR, Via Provinciale Monteroni 165, 73100 Lecce, Italy
| | - Pietro Alifano
- Department of Biological and Environmental Sciences and Technologies (DiSTeBA), University of Salento, Via Provinciale Monteroni 165, 73100 Lecce, Italy
| | - Giuseppe Egidio De Benedetto
- Laboratory of Analytical and Isotopic Mass Spectrometry, Department of Cultural Heritage, University of Salento, Lecce, Italy
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Sphingomonas montana sp. nov., isolated from a soil sample from the Tanggula Mountain in the Qinghai Tibetan Plateau. Antonie van Leeuwenhoek 2017; 110:1659-1668. [PMID: 28755311 DOI: 10.1007/s10482-017-0915-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/23/2016] [Accepted: 07/19/2017] [Indexed: 10/19/2022]
Abstract
An orange pigmented, Gram-staining negative, aerobic, motile, rod-shaped bacterium isolated from a soil from the Tanggula Mountain, China was studied using a polyphasic approach. Based on 16S rRNA gene sequence similarity, strain W16RDT was found to be closely related to Sphingomonas prati DSM 103336T (99%), Sphingomonas fennica DSM 13665T (97.21%), followed by Sphingomonas laterariae DSM 25432T (96.44%), Sphingomonas haloaromaticamans CGMCC 1.10206 T (96.36%) and Sphingomonas formosensis DSM 24164T (96.06%). The strain was found to be catalase and oxidase positive and was found to grow optimally at temperatures of 20-25 °C, pH 8 and tolerated NaCl concentration up to 1% (w/v). The major fatty acids identified were summed feature eight comprising C18:1 ω 7c and/or C18:1 ω 6c (39.2%), summed feature three comprising of C16:1 ω7c and/or C16:1 ω6c (36.7%) and C16:0 (7.0%). The polar lipids detected were phosphatidylcholine, sphingoglycolipid, phosphatidylglycerol, phosphatidylethanolamine, diphosphatidylglycerol, phosphatidyldimethylethanolamine, phosphatidylmonomethylethanolamine, and three unidentified lipids. The strain possessed ubiquinone-10 (Q-10) as the predominant respiratory quinone. Along with other distinguishing characteristics, we also describe the draft genome of strain W16RDT. The final assembled draft genome sequence is 3,722,743 bp with 3390 coding and 48 RNA (45 tRNA and 3 rRNA) genes. The DNA G+C content of the genomic DNA was determined to be 67%. The DNA-DNA relatedness value between the strain W16RDT and its closest phylogenetic relatives S. prati DSM 103336T, S. fennica DSM 13665T, S. laterariae DSM 25432T, and S. haloaromaticamans CGMCC 1.10206T were 52.17, 47.60, 20.93 and 17.09% respectively. The strain W16RDT could be distinguished genotypically and phenotypically from the recognized species belonging to the genus Sphingomonas and thus represents a novel species, for which the name Sphingomonas montana sp. nov. is proposed. The type strain is W16RDT (=CGMCC 1.15646T = DSM 103337T).
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Loredana S, Graziano P, Antonio M, Carlotta NM, Caterina L, Maria AA, Carlo Z, Giuseppe C, Pietro A. Lindane Bioremediation Capability of Bacteria Associated with the Demosponge Hymeniacidon perlevis. Mar Drugs 2017; 15:md15040108. [PMID: 28383507 PMCID: PMC5408254 DOI: 10.3390/md15040108] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2017] [Revised: 03/16/2017] [Accepted: 03/27/2017] [Indexed: 01/13/2023] Open
Abstract
Lindane is an organochlorine pesticide belonging to persistent organic pollutants (POPs) that has been widely used to treat agricultural pests. It is of particular concern because of its toxicity, persistence and tendency to bioaccumulate in terrestrial and aquatic ecosystems. In this context, we assessed the role of bacteria associated with the sponge Hymeniacidon perlevis in lindane degradation. Seven bacteria isolates were characterized and identified. These isolates showed a remarkable capacity to utilize lindane as a sole carbon source leading to a percentage of residual lindane ranging from 3% to 13% after 12 days of incubation with the pesticide. The lindane metabolite, 1,3–6-pentachloro-cyclohexene, was identified as result of lindane degradation and determined by gas chromatography–mass spectrometry (GC–MS). The bacteria capable of lindane degradation were identified on the basis of the phenotypic characterization by morphological, biochemical and cultural tests, completed with 16S rDNA sequence analysis, and assigned to Mameliella phaeodactyli, Pseudovibrioascidiaceicola, Oceanicaulis stylophorae, Ruegeria atlantica and to three new uncharacterized species. The results obtained are a prelude to the development of future strategies for the in situ bioremediation of lindane.
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Affiliation(s)
- Stabili Loredana
- Istituto per l'Ambiente Marino Costiero, Unità Operativa di Supporto di Taranto, CNR, Via Roma 3, 74123 Taranto, Italy.
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali, Università del Salento, Via Prov.le Lecce Monteroni, 73100 Lecce, Italy.
| | - Pizzolante Graziano
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali, Università del Salento, Via Prov.le Lecce Monteroni, 73100 Lecce, Italy.
| | - Morgante Antonio
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali, Università del Salento, Via Prov.le Lecce Monteroni, 73100 Lecce, Italy.
| | - Nonnis Marzano Carlotta
- Dipartimento di Biologia, Università di Bari Aldo Moro, 70125 Bari, Italy.
- CoNISMa, Piazzale Flaminio 9, 00196 Roma, Italy.
| | - Longo Caterina
- Dipartimento di Biologia, Università di Bari Aldo Moro, 70125 Bari, Italy.
- CoNISMa, Piazzale Flaminio 9, 00196 Roma, Italy.
| | | | - Zambonin Carlo
- Dipartimento di Chimica, Università di Bari Aldo Moro, 70125 Bari, Italy.
| | - Corriero Giuseppe
- Dipartimento di Biologia, Università di Bari Aldo Moro, 70125 Bari, Italy.
- CoNISMa, Piazzale Flaminio 9, 00196 Roma, Italy.
| | - Alifano Pietro
- Dipartimento di Scienze e Tecnologie Biologiche ed Ambientali, Università del Salento, Via Prov.le Lecce Monteroni, 73100 Lecce, Italy.
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Pizzolante G, Cordero C, Tredici SM, Vergara D, Pontieri P, Del Giudice L, Capuzzo A, Rubiolo P, Kanchiswamy CN, Zebelo SA, Bicchi C, Maffei ME, Alifano P. Cultivable gut bacteria provide a pathway for adaptation of Chrysolina herbacea to Mentha aquatica volatiles. BMC PLANT BIOLOGY 2017; 17:30. [PMID: 28249605 PMCID: PMC5333409 DOI: 10.1186/s12870-017-0986-6] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2016] [Accepted: 01/24/2017] [Indexed: 06/06/2023]
Abstract
BACKGROUND A chemical cross-talk between plants and insects is required in order to achieve a successful co-adaptation. In response to herbivory, plants produce specific compounds, and feeding insects respond adequately7 to molecules produced by plants. Here we show the role of the gut microbial community of the mint beetle Chrysolina herbacea in the chemical cross-talk with Mentha aquatica (or watermint). RESULTS By using two-dimensional gas chromatography-mass spectrometry we first evaluated the chemical patterns of both M. aquatica leaf and frass volatiles extracted by C. herbacea males and females feeding on plants, and observed marked differences between males and females volatiles. The sex-specific chemical pattern of the frass paralleled with sex-specific distribution of cultivable gut bacteria. Indeed, all isolated gut bacteria from females belonged to either α- or γ-Proteobacteria, whilst those from males were γ-Proteobacteria or Firmicutes. We then demonstrated that five Serratia marcescens strains from females possessed antibacterial activity against bacteria from males belonging to Firmicutes suggesting competition by production of antimicrobial compounds. By in vitro experiments, we lastly showed that the microbial communities from the two sexes were associated to specific metabolic patterns with respect to their ability to biotransform M. aquatica terpenoids, and metabolize them into an array of compounds with possible pheromone activity. CONCLUSIONS Our data suggest that cultivable gut bacteria of Chrysolina herbacea males and females influence the volatile blend of herbivory induced Mentha aquatica volatiles in a sex-specific way.
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Affiliation(s)
- Graziano Pizzolante
- Department of Biological and Environmental Sciences and Technologies, University of Salento, via Monteroni 165, 73100 Lecce, Italy
| | - Chiara Cordero
- Dipartimento di Scienza e Tecnologia del Farmaco, Università di Torino, Via Pietro Giuria n°9, 10125 Torino, Italy
| | - Salvatore M. Tredici
- Department of Biological and Environmental Sciences and Technologies, University of Salento, via Monteroni 165, 73100 Lecce, Italy
| | - Davide Vergara
- Department of Biological and Environmental Sciences and Technologies, University of Salento, via Monteroni 165, 73100 Lecce, Italy
| | - Paola Pontieri
- Dipartimento di Biologia, Sezione di Igiene, Institute of Biosciences and Bioresources-UOS Portici (IBBR-UOS Portici), CNR, Portici (NA) c/o, 80134 Naples, Italy
| | - Luigi Del Giudice
- Dipartimento di Biologia, Sezione di Igiene, Institute of Biosciences and Bioresources-UOS Portici (IBBR-UOS Portici), CNR, Portici (NA) c/o, 80134 Naples, Italy
| | - Andrea Capuzzo
- Dipartimento di Scienze della Vita e Biologia dei Sistemi, Università di Torino, Via Quarello 15/A, 10135 Torino, Italy
| | - Patrizia Rubiolo
- Dipartimento di Scienza e Tecnologia del Farmaco, Università di Torino, Via Pietro Giuria n°9, 10125 Torino, Italy
| | - Chidananda N. Kanchiswamy
- Research and Innovation Centre Genomics and Biology of Fruit Crop Department, Fondazione Edmund Mach (FEM), Istituto Agrario San Michele (IASMA), Via Mach 1, 38010 San Michele all’Adige, TN Italy
| | - Simon A. Zebelo
- Department of Natural Sciences, University of Maryland Eastern Shore, 1117 Trigg Hall, Princess Anne, 21853 MD USA
| | - Carlo Bicchi
- Dipartimento di Scienza e Tecnologia del Farmaco, Università di Torino, Via Pietro Giuria n°9, 10125 Torino, Italy
| | - Massimo E. Maffei
- Dipartimento di Scienze della Vita e Biologia dei Sistemi, Università di Torino, Via Quarello 15/A, 10135 Torino, Italy
| | - Pietro Alifano
- Department of Biological and Environmental Sciences and Technologies, University of Salento, via Monteroni 165, 73100 Lecce, Italy
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13
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Wei S, Wang T, Liu H, Zhang C, Guo J, Wang Q, Liang K, Zhang Z. Sphingomonas hengshuiensis sp. nov., isolated from lake wetland. Int J Syst Evol Microbiol 2015; 65:4644-4649. [PMID: 26410379 DOI: 10.1099/ijsem.0.000626] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A polyphasic taxonomic study was undertaken to establish the status of a novel bacterium, designated strain WHSC-8T, which was isolated from soil of Hengshui Lake Wetland Reserve in Hebei province, northern China. Colonies of this strain were yellow and cells were rod-shaped, polar-flagellated and obligately aerobic, exhibiting negative Gram reaction. The strain was able to grow at 0-1 % (w/v) NaCl, pH 5-10 and 20-35 °C, with optimal growth occurring at pH 7.0 and 28 °C without NaCl. Chemotaxonomic data revealed that strain WHSC-8T possesses ubiquinone Q-10 as the predominant respiratory quinone, C18 : 1ω7c, C16 : 0 and summed feature 3 (C16 : 1ω7c and/or iso-C15 : 0 2-OH) as the major fatty acids, and sym-homospermidine as the major polyamine. Sphingomonadaceae-specific sphingoglycolipid was detected in the polar lipid patterns. The G+C content of the genomic DNA was 68.7 mol%. All of the above characters corroborated the assignment of the novel strain to the genus Sphingomonas. Strain WHSC-8T shared less than 97.0 % 16S rRNA gene sequence similarity with the type strains of other species of the genus Sphingomonas, except for Sphingomonas asaccharolytica DSM 10564T (97.5 %). The low DNA-DNA relatedness value and distinct phenotypic and chemotaxonomic characteristics distinguished strain WHSC-8T from closely related species of the genus Sphingomonas. Therefore, strain WHSC-8T represents a novel species of the genus Sphingomonas, for which the name Sphingomonas hengshuiensis sp. nov. is proposed. The type strain is WHSC-8T ( = KCTC 42455T = CCTCC AB 2015265T).
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Affiliation(s)
- Shuzhen Wei
- College of Life Sciences, Hengshui University, Heping West Road 1088, Taocheng District, Hengshui 053000, Hebei, PR China
| | - Tingting Wang
- College of Life Sciences, Hengshui University, Heping West Road 1088, Taocheng District, Hengshui 053000, Hebei, PR China
| | - Hongliang Liu
- Shandong Provincial Research Center for Bioinformatic Engineering and Technique, School of Life Sciences, Shandong University of Technology, Zibo 255049, Shandong, PR China
| | - Caifeng Zhang
- College of Life Sciences, Hengshui University, Heping West Road 1088, Taocheng District, Hengshui 053000, Hebei, PR China
| | - Jiping Guo
- College of Life Sciences, Hengshui University, Heping West Road 1088, Taocheng District, Hengshui 053000, Hebei, PR China
| | - Qian Wang
- College of Life Sciences, Hengshui University, Heping West Road 1088, Taocheng District, Hengshui 053000, Hebei, PR China
| | - Kuijing Liang
- College of Life Sciences, Hengshui University, Heping West Road 1088, Taocheng District, Hengshui 053000, Hebei, PR China
| | - Zhiqiang Zhang
- College of Life Sciences, Hengshui University, Heping West Road 1088, Taocheng District, Hengshui 053000, Hebei, PR China
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14
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Leone A, Lecci RM, Durante M, Meli F, Piraino S. The Bright Side of Gelatinous Blooms: Nutraceutical Value and Antioxidant Properties of Three Mediterranean Jellyfish (Scyphozoa). Mar Drugs 2015; 13:4654-81. [PMID: 26230703 PMCID: PMC4556998 DOI: 10.3390/md13084654] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/01/2015] [Revised: 07/01/2015] [Accepted: 07/20/2015] [Indexed: 01/18/2023] Open
Abstract
Jellyfish are recorded with increasing frequency and magnitude in many coastal areas and several species display biological features comparable to the most popular Asiatic edible jellyfish. The biochemical and antioxidant properties of wild gelatinous biomasses, in terms of nutritional and nutraceutical values, are still largely unexplored. In this paper, three of the most abundant and commonly recorded jellyfish species (Aurelia sp.1, Cotylorhiza tuberculata and Rhizostoma pulmo) in the Mediterranean Sea were subject to investigation. A sequential enzymatic hydrolysis of jellyfish proteins was set up by pepsin and collagenase treatments of jellyfish samples after aqueous or hydroalcoholic protein extraction. The content and composition of proteins, amino acids, phenolics, and fatty acids of the three species were recorded and compared. Protein content (mainly represented by collagen) up to 40% of jellyfish dry weight were found in two of the three jellyfish species (C. tuberculata and R. pulmo), whereas the presence of ω-3 and ω-6 polyunsaturated fatty acids (PUFAs) was significantly higher in the zooxanthellate jellyfish C. tuberculata only. Remarkable antioxidant ability was also recorded from both proteinaceous and non proteinaceous extracts and the hydrolyzed protein fractions in all the three species. The abundance of collagen, peptides and other bioactive molecules make these Mediterranean gelatinous biomasses a largely untapped source of natural compounds of nutraceutical, cosmeceutical and pharmacological interest.
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Affiliation(s)
- Antonella Leone
- Institute of Sciences of Food Production, National Research Council, Unit of Lecce (CNR, ISPA), Via Prov.le Lecce-Monteroni, 73100 Lecce, Italy.
- Consorzio Nazionale Interuniversitario per le Scienze del Mare (CoNISMa), Local Unit of Lecce, Via Prov.le Lecce-Monteroni, 73100 Lecce, Italy.
| | - Raffaella Marina Lecci
- Institute of Sciences of Food Production, National Research Council, Unit of Lecce (CNR, ISPA), Via Prov.le Lecce-Monteroni, 73100 Lecce, Italy.
- Consorzio Nazionale Interuniversitario per le Scienze del Mare (CoNISMa), Local Unit of Lecce, Via Prov.le Lecce-Monteroni, 73100 Lecce, Italy.
| | - Miriana Durante
- Institute of Sciences of Food Production, National Research Council, Unit of Lecce (CNR, ISPA), Via Prov.le Lecce-Monteroni, 73100 Lecce, Italy.
| | - Federica Meli
- Dipartimento di Scienze degli Alimenti, Università di Parma, Parco Area delle Scienze, 59/A, 43124 Parma, Italy.
| | - Stefano Piraino
- Consorzio Nazionale Interuniversitario per le Scienze del Mare (CoNISMa), Local Unit of Lecce, Via Prov.le Lecce-Monteroni, 73100 Lecce, Italy.
- Università del Salento, DiSTeBA Via Prov.le Lecce-Monteroni, 73100 Lecce, Italy.
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15
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Singh P, Kim YJ, Hoang VA, Farh MEA, Yang DC. Sphingomonas panacis sp. nov., isolated from rhizosphere of rusty ginseng. Antonie van Leeuwenhoek 2015; 108:711-20. [PMID: 26155772 DOI: 10.1007/s10482-015-0527-y] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/23/2015] [Accepted: 07/02/2015] [Indexed: 11/30/2022]
Abstract
The type strain DCY99(T) was isolated from soil collected from a ginseng field in Hwacheon, Republic of Korea. Strain DCY99(T) is Gram-negative, non-spore forming, motile, rod-shaped, and strictly aerobic. The bacteria grow optimally at 25-30 °C and pH 6.0-6.5. Phylogenetically, strain DCY99(T) is most closely related to Sphingomonas oligophenolica JCM 12082(T), followed by Sphingomonas asaccharolytica KCTC 2825(T), Sphingomonas mali KCTC 2826(T), Sphingomonas cynarae JCM17498(T), Sphingomonas pruni KCTC 2824(T), and Sphingomonas glacialis DSM 22294(T). The DNA-DNA relatedness between strain DCY99(T) and S. oligophenolica JCM 12082(T) was 15.6 ± 0.4 %, and the DNA G+C content of strain DCY99(T) was 64.4 mol%. An isoprenoid quinone was detected and identified as ubiquinone Q-10, and sym-homospermidine was identified as the major polyamine of DCY99(T). The major polar lipids were identified as sphingoglycolipid, diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, and phosphatidylcholine. C14:02OH, C16:0, and summed feature 8 (C18:1 ω7c:/C18:1 ω6c) were identified as the major fatty acids present in DCY99(T). The results of physiological and biochemical tests allowed strain DCY99(T) to be differentiated phenotypically from other recognized species belonging to the genus Sphingomonas. Therefore, it is suggested that the newly isolated organism represents a novel species, for which the name Sphingomonas panacis sp. nov. is proposed with the type strain designated as DCY99(T) (=JCM 30806(T) =KCTC 42347(T)).
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Affiliation(s)
- Priyanka Singh
- Department of Oriental Medicine Biotechnology, Ginseng Bank, College of Life Science, Kyung Hee University, Seocheon-dong, Giheung-gu, Yongin-si, Gyeonggi-do, 446-701, Republic of Korea
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16
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Kämpfer P, Busse HJ, McInroy JA, Glaeser SP. Sphingomonas zeae sp. nov., isolated from the stem of Zea mays. Int J Syst Evol Microbiol 2015; 65:2542-2548. [PMID: 25944808 DOI: 10.1099/ijs.0.000298] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A yellow-pigmented bacterial isolate (strain JM-791T) obtained from the healthy internal stem tissue of 1-month-old corn (Zea mays, cultivar 'Sweet Belle') grown at the Plant Breeding Unit of the E.V. Smith Research Center in Tallassee (Elmore county), Alabama, USA, was taxonomically characterized. The study employing a polyphasic approach, including 16S RNA gene sequence analysis, physiological characterization, estimation of the ubiquinone and polar lipid patterns, and fatty acid composition, revealed that strain JM-791T shared 16S rRNA gene sequence similarities with type strains of Sphingomonas paucimobilis (98.3%), Sphingomonas pseudosanguinis (97.5%) and Sphingomonas yabuuchiae (97.4%), but also showed pronounced differences, both genotypically and phenotypically. On the basis of these results, a novel species of the genus Sphingomonas is described, for which we propose the name Sphingomonas zeae sp. nov. with the type strain JM-791T ( = LMG 28739T = CCM 8596T).
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Affiliation(s)
- Peter Kämpfer
- Institut für Angewandte Mikrobiologie, Universität Giessen, Giessen, Germany
| | - Hans-Jürgen Busse
- Institut für Mikrobiologie, Veterinärmedizinische Universität, A-1210 Wien, Austria
| | - John A McInroy
- Department of Entomology and Plant Pathology, Auburn University, Alabama, USA
| | - Stefanie P Glaeser
- Institut für Angewandte Mikrobiologie, Universität Giessen, Giessen, Germany
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17
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Pontieri P, De Stefano M, Massardo DR, Gunge N, Miyakawa I, Sando N, Pignone D, Pizzolante G, Romano R, Alifano P, Del Giudice L. Tellurium as a valuable tool for studying the prokaryotic origins of mitochondria. Gene 2015; 559:177-83. [PMID: 25644076 DOI: 10.1016/j.gene.2015.01.060] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/03/2014] [Accepted: 01/20/2015] [Indexed: 02/05/2023]
Abstract
Mitochondria are eukaryotic organelles which contain the own genetic material and evolved from free-living Eubacteria, namely hydrogen-producing Alphaproteobacteria. Since 1965, biologists provided, by research at molecular level, evidence for the prokaryotic origins of mitochondria. However, determining the precise origins of mitochondria is challenging due to inherent difficulties in phylogenetically reconstructing ancient evolutionary events. The use of new tools to evidence the prokaryotic origin of mitochondria could be useful to gain an insight into the bacterial endosymbiotic event that resulted in the permanent acquisition of bacteria, from the ancestral cell, that through time were transformed into mitochondria. Electron microscopy has shown that both proteobacterial and yeast cells during their growth in the presence of increasing amount of tellurite resulted in dose-dependent blackening of the culture due to elemental tellurium (Te(0)) that formed large deposits either along the proteobacterial membrane or along the yeast cell wall and mitochondria. Since the mitochondrial inner membrane composition is similar to that of proteobacterial membrane, in the present work we evidenced the black tellurium deposits on both, cell wall and mitochondria of ρ(+) and respiratory deficient ρ(-) mutants of yeast. A possible role of tellurite in studying the evolutionary origins of mitochondria will be discussed.
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Affiliation(s)
- Paola Pontieri
- Institute of Biosciences and Bioresources-UOS Portici (IBBR-UOS Portici), CNR, Portici (NA) c/o Dipartimento di Biologia, Sezione di Igiene, Napoli 80134, Italy
| | - Mario De Stefano
- Department of Environmental Sciences, Second University of Naples, via A. Vivaldi 43, 81100 Caserta, Italy
| | - Domenica Rita Massardo
- Institute of Biosciences and Bioresources-UOS Portici (IBBR-UOS Portici), CNR, Portici (NA) c/o Dipartimento di Biologia, Sezione di Igiene, Napoli 80134, Italy
| | - Norio Gunge
- Sojo-University, Ikeda 4-22-1, Kumamoto 860-0082, Japan
| | - Isamu Miyakawa
- Department of Biology, Faculty of Science, Yamaguchi University, Yamaguchi 753-8512, Japan
| | - Nobundo Sando
- Department of Biology, Faculty of Science, Yamaguchi University, Yamaguchi 753-8512, Japan
| | - Domenico Pignone
- Institute of Biosciences and Bioresources (IBBR), CNR, 70126 Bari, Italy
| | - Graziano Pizzolante
- Department of Biological and Environmental Sciences and Technology, University of Salento, via Monteroni, 73100 Lecce, Italy
| | - Roberta Romano
- Department of Biological and Environmental Sciences and Technology, University of Salento, via Monteroni, 73100 Lecce, Italy
| | - Pietro Alifano
- Department of Biological and Environmental Sciences and Technology, University of Salento, via Monteroni, 73100 Lecce, Italy
| | - Luigi Del Giudice
- Institute of Biosciences and Bioresources-UOS Portici (IBBR-UOS Portici), CNR, Portici (NA) c/o Dipartimento di Biologia, Sezione di Igiene, Napoli 80134, Italy.
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18
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Sphingomonas gimensis sp. nov., a novel Gram-negative bacterium isolated from abandoned lead–zinc ore mine. Antonie van Leeuwenhoek 2014; 105:1091-7. [DOI: 10.1007/s10482-014-0167-7] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Accepted: 03/27/2014] [Indexed: 10/25/2022]
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19
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Huang J, Huang Z, Zhang ZD, He LY, Sheng XF. Sphingomonas yantingensis sp. nov., a mineral-weathering bacterium isolated from purplish paddy soil. Int J Syst Evol Microbiol 2014; 64:1030-1034. [DOI: 10.1099/ijs.0.055954-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A novel type of mineral-weathering bacterium was isolated from purplish soils collected from Yanting (Sichuan, south-western China). Cells of strain 1007T were Gram-stain-negative and rod-shaped, motile and yellow-pigmented. The isolate was strictly aerobic, catalase- and oxidase-positive, and grew optimally at 28-30 °C and pH 6.0-7.0. The genomic DNA G+C content of strain 1007T was 67±0.7 mol%. Phylogenetic analysis based on 16S rRNA gene sequences indicated that strain 1007T belonged to the genus
Sphingomonas
and was most closely related to
Sphingomonas pruni
IFO 15498T (97.3 %),
Sphingomonas mali
IFO 15500T (97.2 %),
Sphingomonas japonica
KC7T (97.2 %) and
Sphingomonas koreensis
JSS26T (97.0 %). This affiliation of strain 1007T to the genus
Sphingomonas
was confirmed by the presence of Q-10 as the major ubiquinone, sphingoglycolipid, C14 : 0 2-OH and by the absence of 3-hydroxy fatty acids. The major polyamine was homospermidine. The main cellular fatty acids included summed feature 8 (comprising C18 : 1ω7c and/or C18 : 1ω6c) and C16 : 0. Based on the low level of DNA–DNA relatedness (ranging from 26.1 % to 58.7 %) to these type strains of species of the genus
Sphingomonas
and unique phenotypic characteristics, strain 1007T represents a novel species of the genus
Sphingomonas
, for which the name Sphingomonas yantingensis sp. nov. is proposed. The type strain is 1007T ( = DSM 27244T = JCM 19201T = CCTCC AB 2013146T).
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Affiliation(s)
- Jing Huang
- Key Laboratory of Agricultural Environment Microbiology, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Zhi Huang
- Key Laboratory of Agricultural Environment Microbiology, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Zhen-Dong Zhang
- Key Laboratory of Agricultural Environment Microbiology, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Lin-Yan He
- Key Laboratory of Agricultural Environment Microbiology, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, PR China
| | - Xia-Fang Sheng
- Key Laboratory of Agricultural Environment Microbiology, Ministry of Agriculture, College of Life Sciences, Nanjing Agricultural University, Nanjing 210095, PR China
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20
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Stabili L, Giangrande A, Pizzolante G, Caruso G, Alifano P. Characterization of vibrios diversity in the mucus of the polychaete Myxicola infundibulum (Annellida, Polichaeta). MICROBIAL ECOLOGY 2014; 67:186-194. [PMID: 24194098 DOI: 10.1007/s00248-013-0312-2] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Accepted: 10/08/2013] [Indexed: 06/02/2023]
Abstract
Vibrios are among the most abundant culturable microbes in aquatic environments. They can be either free-living in the water column or associated with several marine organisms as mutualists, saprophytes, or parasites. In the present study we analysed vibrios abundance and diversity in the mucus of the polychaete Myxicola infundibulum, complementing culture-based with molecular methods. Vibrios reached 4.6 × 10(3) CFU mL(-1) thus representing a conspicuous component of the heterotrophic culturable bacteria. In addition, luminous vibrios accounted for about 60% of the total culturable vibrios in the mucus. The isolates were assigned to: Vibrio gigantis, Vibrio fischeri, Vibrio jasicida, Vibrio crassostreae, Vibrio kanaloae, and Vibrio xuii. Two Vibrio isolates (MI-13 and MI-15) may belong to a new species. We also tested the ability of the Vibrio isolates to grow on M. infundibulum mucus as the sole carbon source. All strains showed appreciable growth in the presence of mucus, leading us to conclude that this matrix, which is abundant and covers the animal entirely, may represent a microcosm and a food source for some bacteria, playing a crucial role in the structuring of a mucus-associated beneficial microbial community. Moreover, the trophic relationship between vibrios and M. infundibulum mucus could be enhanced by the protection that mucus offers to vibrios. The results of this study represent a contribution to the growing evidence for complex and dynamic invertebrate-microbe associations present in nature and highlight the importance of exploring relationships that Vibrio species establish with marine invertebrates.
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Affiliation(s)
- Loredana Stabili
- Istituto per l'Ambiente Marino Costiero, U.O.S. di Taranto, CNR, Via Roma 3, Taranto, Italy,
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21
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Durante M, Lenucci MS, D'Amico L, Piro G, Mita G. Effect of drying and co-matrix addition on the yield and quality of supercritical CO₂ extracted pumpkin (Cucurbita moschata Duch.) oil. Food Chem 2013; 148:314-20. [PMID: 24262563 DOI: 10.1016/j.foodchem.2013.10.051] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2013] [Revised: 10/09/2013] [Accepted: 10/10/2013] [Indexed: 12/16/2022]
Abstract
In this work a process for obtaining high vitamin E and carotenoid yields by supercritical carbon dioxide (SC-CO₂) extraction from pumpkin (Cucurbita moschata Duch.) is described. The results show that the use of a vacuum oven-dried [residual moisture (∼8%)] and milled (70 mesh sieve) pumpkin flesh matrix increased SC-CO₂ extraction yields of total vitamin E and carotenoids of ∼12.0- and ∼8.5-fold, respectively, with respect to the use of a freeze-dried and milled flesh matrix. The addition of milled (35 mesh) pumpkin seeds as co-matrix (1:1, w/w) allowed a further ∼1.6-fold increase in carotenoid yield, besides to a valuable enrichment of the extracted oil in vitamin E (274 mg/100 g oil) and polyunsaturated fatty acids. These findings encourage further studies in order to scale up the process for possible industrial production of high quality bioactive ingredients from pumpkin useful in functional food or cosmeceutical formulation.
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Affiliation(s)
- Miriana Durante
- Istituto di Scienze delle Produzioni Alimentari - CNR, Via Prov.le Lecce-Monteroni, 73100 Lecce, Italy
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22
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Leone A, Lecci RM, Durante M, Piraino S. Extract from the zooxanthellate jellyfish Cotylorhiza tuberculata modulates gap junction intercellular communication in human cell cultures. Mar Drugs 2013; 11:1728-62. [PMID: 23697954 PMCID: PMC3707171 DOI: 10.3390/md11051728] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2013] [Revised: 04/24/2013] [Accepted: 04/25/2013] [Indexed: 12/13/2022] Open
Abstract
On a global scale, jellyfish populations in coastal marine ecosystems exhibit increasing trends of abundance. High-density outbreaks may directly or indirectly affect human economical and recreational activities, as well as public health. As the interest in biology of marine jellyfish grows, a number of jellyfish metabolites with healthy potential, such as anticancer or antioxidant activities, is increasingly reported. In this study, the Mediterranean “fried egg jellyfish” Cotylorhiza tuberculata (Macri, 1778) has been targeted in the search forputative valuable bioactive compounds. A medusa extract was obtained, fractionated, characterized by HPLC, GC-MS and SDS-PAGE and assayed for its biological activity on breast cancer cells (MCF-7) and human epidermal keratinocytes (HEKa). The composition of the jellyfish extract included photosynthetic pigments, valuable ω-3 and ω-6 fatty acids, and polypeptides derived either from jellyfish tissues and their algal symbionts. Extract fractions showed antioxidant activity and the ability to affect cell viability and intercellular communication mediated by gap junctions (GJIC) differentially in MCF-7and HEKa cells. A significantly higher cytotoxicity and GJIC enhancement in MCF-7 compared to HEKa cells was recorded. A putative action mechanism for the anticancer bioactivity through the modulation of GJIC has been hypothesized and its nutraceutical and pharmaceutical potential was discussed.
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Affiliation(s)
- Antonella Leone
- Institute of Sciences of Food Production, National Research Council, Unit of Lecce (CNR, ISPA), Via Prov.le Lecce-Monteroni, Lecce 73100, Italy; E-Mails: (R.M.L.); (M.D.)
- CoNISMa, National Interuniversity Consortium on Marine Sciences, Local Unit of Lecce, Via Prov.le Lecce-Monteroni, Lecce 73100, Italy; E-Mail:
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +39-0832-422-615; Fax: +39-0832-422-620
| | - Raffaella Marina Lecci
- Institute of Sciences of Food Production, National Research Council, Unit of Lecce (CNR, ISPA), Via Prov.le Lecce-Monteroni, Lecce 73100, Italy; E-Mails: (R.M.L.); (M.D.)
- CoNISMa, National Interuniversity Consortium on Marine Sciences, Local Unit of Lecce, Via Prov.le Lecce-Monteroni, Lecce 73100, Italy; E-Mail:
| | - Miriana Durante
- Institute of Sciences of Food Production, National Research Council, Unit of Lecce (CNR, ISPA), Via Prov.le Lecce-Monteroni, Lecce 73100, Italy; E-Mails: (R.M.L.); (M.D.)
| | - Stefano Piraino
- CoNISMa, National Interuniversity Consortium on Marine Sciences, Local Unit of Lecce, Via Prov.le Lecce-Monteroni, Lecce 73100, Italy; E-Mail:
- University of Salento, Via Prov.le Lecce-Monteroni, Lecce 73100, Italy
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