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1. The ultrastructure of collema tenax, with particular reference to micro‐tubule‐lake inclusions and vesicle production

Author:
PHYCOBIONT JOAN BOUSFIELD; ALANT PEAT
Source:
new phytologist 1976 v.76 no.1 pp. 121-128
ISSN:
0028-646X
Subject:
Collema; Nostoc; algae; bacteria; chloroplasts; endocytosis; fungi; haustoria; hyphae; lipids; microtubules; thallus; ultrastructure
Abstract:
... An ultrastructural study of the vegetative thallus of Collema tenax (SW). Ach, showed that although haustorial connections were absent, the mycobiont did occasionally penetrate the algal sheath material. Concentric bodies and mesosome‐like structures were characteristically found in the mycobiont. Normal and senescent blue‐green algal cells were found alongside unusual vesiculating cells. Vesicles ...
DOI:
10.1111/j.1469-8137.1976.tb01444.x

2. Spontaneous Listeric:Encephalitis in Sheep Electron Microscopic Studies

Author:
K. M. Charlton
Source:
Veterinary pathology v.14 no.5 pp. 429-434
ISSN:
1544-2217
Subject:
animal pathology; axons; bacteria; encephalitis; lipids; macrophages; medulla oblongata; myelin sheath; neuroglia; neutrophils; plasma cells; sheep; vacuoles
Abstract:
... The brainstems of four sheep with spontaneous listeric encephalitis had scattered small foci of inflammatory cells (neutrophils or macrophages, or both) with scattered fragments of degenerating nerve fibers and glial cells. In extensive areas of malacia in the pons and medulla oblongata, there was loss of parenchyma with massive accumulation of macrophages, a few neutrophils, lymphocytes and plasm ...
DOI:
10.1177/030098587701400501

3. Structure of the sidechain of lipopolysaccharide from Erwinia amylovora T

Author:
Ray, T.C.; Smith, A.R.W.; Wait, R.; Hignett, R.C.
Source:
European journal of biochemistry 1987 v.170 no.1/2 pp. 357-361
ISSN:
0014-2956
Subject:
bacteria; Erwinia amylovora; strains; hydrolysis; polysaccharides; lipids; chemical composition
DOI:
10.1111/j.1432-1033.1987.tb13707.x

4. Invited Review: Infection Control of Parenteral Nutrition Solutions

Author:
Barbara Thompson; Lawrence A. Robinson
Source:
Nutrition in clinical practice 1991 v.6 no.2 pp. 49-54
ISSN:
0884-5336
Subject:
amino acids; bacteria; bacterial growth; culture media; disease control; emulsions; fungal growth; fungi; glucose; guidelines; lipids; microbial contamination; parenteral feeding; patients; quality control
Abstract:
... Microbial contamination of parenteral nutrition solutions is a preventable cause of infection in patients receiving nutrition support. The components of the parenteral nutrition solutions have variable microbial growth potential. Crystalline amino acid and dextrose solutions are poor growth media for bacteria but may support fungal growth. Lipid emulsions provide an excellent medium for growth of ...
DOI:
10.1177/011542659100600249

5. Oleic acid transformations by selected strains of Sphingobacterium thalpophilum and Bacillus cereus from composted manure

Author:
Kaneshiro, T.; Nakamura, L.K.; Bagby, M.O.
Source:
Current microbiology 1995 v.31 no.1 pp. 62-67
ISSN:
0343-8651
Subject:
composts; hydroxy fatty acids; amides; Bacillus cereus; lipid metabolism; oleic acid; bacteria
Abstract:
... In a survey of 186 randomly selected microbial strains isolated from composted manure, 63 transformed oleic acid into three types of products: hydroxy fatty acid, fatty amide, and less polar oleyl lipid. Selection of oleic acid-transforming microorganisms was enhanced in nutrient agar supplemented with 0.1% (vol/vol) oleic acid at pH 7.2. Most of the 63 diverse isolates elicited inconsistent and p ...
Handle:
10113/24891
PubMed:
7767231

6. Radiation sterilization of red chili pepper (Capsicum frutescens)

Author:
Onyenekwe, P.C.; Ogbadu, G.H.
Source:
Journal of food biochemistry 1995 v.19 no.2 pp. 121-137
ISSN:
0145-8884
Subject:
oleoresins; dose response; reducing sugars; capsaicin; microbial contamination; sterilizing; lipids; peppers; food irradiation; dried foods; bacteria
Abstract:
... The effect of radapertization using 60Co gamma radiation on the chemical and organoleptic properties of ground and whole dry pungent red pepper has been investigated. The fungal population was eliminated with a dose of 7.5 kGy and a dose of 10 kGy was required to radapertize the samples. Irradiation up to 10 kGy did not produce any significant (P > 0.05) changes in the contents of capsaicin and ca ...
DOI:
10.1111/j.1745-4514.1995.tb00526.x

7. Effect of carbon dioxide atmosphere on microbial growth and quality of salmon slices

Author:
Pastoriza, L.; Sampedro, G.; Herrera, J.J.; Cabo, M.L.
Source:
Journal of the science of food and agriculture 1996 v.72 no.3 pp. 348-352
ISSN:
0022-5142
Subject:
Salmo salar; fish; microbial contamination; bacteria; plate count; controlled atmosphere storage; carbon dioxide; storage quality; volatile compounds; trimethylamine; flavor; odors; deterioration; lipids; oxidation
Abstract:
... Salmon slices (Salmo salar) were packed under CO2 and stored in a chill room at 2 + 1 degrees C for 3 weeks. A study was carried out on the effect of CO2 atmosphere on bacterial growth as well as on chemical deterioration (pH, total volatile bases, (TVB), trimethylamine (TMA), lipid oxidation) and sensory features (exudation, raw fish odour, cooked fish flavour). Results were compared with a contr ...
DOI:
10.1002/(SICI)1097-0010(199611)72:3<348::AID-JSFA666>3.0.CO;2-O

8. Monitoring deep subsurface microbiota for assessment of safe long-term nuclear waste disposal

Author:
White, D.C.; Ringelberg, D.B.
Source:
Canadian journal of microbiology 1996 v.42 no.4 pp. 375-381
ISSN:
0008-4166
Subject:
waste disposal; soil bacteria; rocks; chemical analysis; fallow; lipids; containers; soil parent materials
DOI:
10.1139/m96-053

9. Bacillus stearothermophilus as a Model to Evaluate Membrane Toxicity of a Lipophilic Environmental Pollutant (DDT)

Author:
M. M. Donato; A. S. Jurado; M. C. Antunes-Madeira; V. M. C. Madeira
Source:
Archives of environmental contamination and toxicology 1997 v.33 no.2 pp. 109-116
ISSN:
0090-4341
Subject:
DDT (pesticide); Geobacillus stearothermophilus; bacteria; calcium; cytotoxicity; dispersions; fluorescence; fluorescent dyes; growth retardation; insecticides; lipid bilayers; lipids; microbial growth; physical properties; pollutants; propionic acid; viability
Abstract:
... The thermophilic eubacterium Bacillus stearothermophilus has been used as a model system to identify DDT-promoted events in biological membranes putatively related with the insecticide toxicity. Two strategies have been approached: a) bacterial growth and viability were followed and the effects of DDT (2,2-bis(p-chlorophenyl)-1,1,1-trichloroethane) determined; b) biophysical studies with fluoresce ...
DOI:
10.1007/s002449900231
PubMed:
9294237

10. Growth, feed conversion, fillet proximate composition and resistance to Edwardsiella ictaluri of channel catfish, Ictalurus punctatus (Rafinesque), blue catfish, Ictalurus furcatus (Lesueur), and their reciprocal F1 hybrids fed 25% and 45% protein diets

Author:
B G Bosworth; W R Wolters; D J Wise; M H Li
Source:
Aquaculture research 1998 v.29 no.4 pp. 251-257
ISSN:
1355-557X
Subject:
Edwardsiella ictaluri; Ictalurus furcatus; Ictalurus punctatus; antibodies; bacteria; dietary protein; feed conversion; females; fish; fish fillets; genotype; heterosis; hybridization; hybrids; juveniles; lipids; males; maternal effect; nutrition-genotype interaction; palatability; protein content; proximate composition; weight gain
Abstract:
... Juvenile channel catfish, Ictalurus punctatus (Rafinesque), blue catfish, I. furcatus (Lesueur), and their reciprocal Fl hybrids were fed practical diets containing 25% and 45% protein during a 10‐week trial to determine the effects of genotype, dietary protein level and genotype X diet interactions on growth, feed conversion ratio (FCR), fillet proximate composition and resistance to the bacteriu ...
DOI:
10.1046/j.1365-2109.1998.00189.x

11. Radiation processing to improve the quality of fishery products

Author:
Venugopal, V.; Doke, S.N.; Thomas, P.
Source:
Critical reviews in food science and nutrition 1999 v.39 no.5 pp. 391-440
ISSN:
1040-8398
Subject:
food spoilage; parasites; shelf life; vitamin content; enzymes; costs and returns; food packaging; lipids; pasteurization; food composition; disinfestation; insects; texture; sensory evaluation; food analysis; agricultural law; transporting quality; amino acids; viruses; muscle tissues; detection; pathogens; food processing quality; myoglobin; food irradiation; food handling; food contamination; microbial contamination; fish products; dosage; foodborne illness; disinfection; protein content; bacteria
Abstract:
... Extensive investigations, worldwide, in the last 4 decades have shown the benefits of radiation processing for the preservation and microbial quality improvement of seafoods. In the present review, the various factors determining the quality of seafoods are first presented. The basic principles underlying the effects of ionizing radiation and specific effects on food constituents such as proteins, ...
DOI:
10.1080/10408699991279222
PubMed:
10516913

12. Characterization of the interaction of IpaB and IpaD, proteins required for entry of Shigella flexneri into epithelial cells, with a lipid membrane

Author:
Carine De Geyter; Ruddy Wattiez; Philippe Sansonetti; Paul Falmagne; Jean‐Marie Ruysschaert; Claude Parsot; Véronique Cabiaux
Source:
European journal of biochemistry 2000 v.267 no.18 pp. 5769-5776
ISSN:
0014-2956
Subject:
Shigella flexneri; bacteria; epithelial cells; lipids; pH; phagosomes; protein secretion; type III secretion system
Abstract:
... Entry of Shigella flexneri into epithelial cells and lysis of the phagosome involve the IpaB, IpaC, and IpaD proteins, which are secreted by type III secretion machinery. We report here the purification of IpaB and IpaD and the characterization of their lipid‐binding properties as a function of pH. The interaction of IpaB with the membrane was quite independent of the pH whereas that of IpaD too ...
DOI:
10.1046/j.1432-1327.2000.01649.x

13. Natural antioxidant extract from galangal (Alpinia galanga) for minced beef

Author:
Cheah, P.B.; Hasim, N.H.A.
Source:
Journal of the science of food and agriculture 2000 v.80 no.10 pp. 1565-1571
ISSN:
0022-5142
Subject:
cooking; food contamination; microbial contamination; plant extracts; plate count; alpha-tocopherol; lipids; beef; color; oxidation; Alpinia galanga; antioxidants; bacteria
DOI:
10.1002/1097-0010(200008)80:10<1565::AID-JSFA677>3.0.CO;2-7

14. A flow cytometry method for rapid detection and enumeration of total bacteria in milk

Author:
Gunasekera, T.S.; Attfield, P.V.; Veal, D.A.
Source:
Applied and environmental microbiology 2000 v.66 no.3 pp. 1228-1232
ISSN:
0099-2240
Subject:
bacteria; flow cytometry; laws and regulations; lipids; milk; milk proteins; rapid methods; raw milk
Abstract:
... Application of flow cytometry (FCM) to microbial analysis of milk is hampered by the presence of milk proteins and lipid particles. Here we report on the development of a rapid (< or = 1-h) FCM assay based on enzymatic clearing of milk to determine total bacteria in milk. When bacteria were added to ultra-heat-treated milk, a good correlation (r > or = 0.98) between the FCM assay and the more conv ...
DOI:
10.1128/AEM.66.3.1228-1232.2000
PubMed:
10698799
PubMed Central:
PMC91970

15. The quality of frozen African sharptooth catfish (Clarias gariepinus) fillets under long-term storage conditions

Author:
Anelich, L.E.; Hoffman, L.C.; Swanepoel, M.J.
Source:
Journal of the science of food and agriculture 2001 v.81 no.7 pp. 632-639
ISSN:
0022-5142
Subject:
fatty acids; packaging materials; frozen storage; texture; bacteria; food contamination; microbial contamination; frozen fish; vacuum packaging; food packaging; food acceptability; duration; flavor; Clarias gariepinus; fish; odors; freezing quality; oxygen; permeability
Abstract:
... The quality of frozen catfish fillets was monitored over a period of 11 months at -20 degrees C, in two types of packaging materials, namely vacuum packaging (VP) and oxygen-permeable packaging (OPP). Representative samples (n = 5) from both types of packaging materials were drawn at random, monthly for the full period of the trial. Samples were pooled and analysed microbiologically using standard ...
DOI:
10.1002/jsfa.863

16. Bacterial community structure and activity in fish farm sediments of the Ligurian sea (Western Mediterranean)

Author:
Vezzulli, L.; Chelossi, E.; Riccardi, G.; Fabiano, M.
Source:
Aquaculture international 2002 v.10 no.2 pp. 123-141
ISSN:
0967-6120
Subject:
Gram-negative bacteria; sediments; fish farms; organic matter; microbial activity; carbohydrates; lipids; species diversity; population density; environmental impact; enzyme activity; chlorophyll; Gram-positive bacteria; Mediterranean Sea

17. Effects of soy protein-isoflavone diet on plasma isoflavone and intestinal microflora in adult mice

Author:
Tamura, Motoi; Hirayama, Kazuhiro; Itoh, Kikuji; Suzuki, Hiramitsu; Shinohara, Kazuki
Source:
Nutrition research 2002 v.22 no.6 pp. 705-713
ISSN:
0271-5317
Subject:
adults; bacteria; blood lipids; casein; daidzein; feces; intestinal microorganisms; lipid content; lipids; males; metabolism; metabolites; mice; soy protein
Abstract:
... Effects of supplementing soy protein or casein diet with isoflavones on intestinal microflora and plasma concentrations of lipids and isoflavone metabolites were studied. Male mice were fed a soy protein or casein diet supplemented with isoflavones for four weeks, and feces and plasma samples were collected. Animals were also fed the soy protein or casein diet and feces were collected to investiga ...

18. Yarrowia lipolytica as a potential producer of citric acid from raw glycerol

Author:
Papanikolaou, S.; Muniglia, L.; Chevalot, I.; Aggelis, G.; Marc, I.
Source:
Journal of applied microbiology 2002 v.92 no.4 pp. 737-744
ISSN:
1364-5072
Subject:
Yarrowia lipolytica; bacteria; biodiesel; citric acid; containers; excretion; feedstocks; glucose; glycerol; lipids; nitrogen
Abstract:
... Aims: To study the biochemical response of Yarrowia lipolytica LGAM S(7)1 during growth on raw glycerol (the main by-product of bio-diesel production units) in order to produce metabolic products of industrial significance. Methods and Results: Yarrowia lipolytica was cultivated on raw glycerol or glucose in flasks. Although nitrogen-limited media were employed, growth was not followed by producti ...
DOI:
10.1046/j.1365-2672.2002.01577.x
PubMed:
11966915

19. Expression and Characterization of European Sea Bass (Dicentrarchus labrax) Somatolactin: Assessment of In Vivo Metabolic Effects

Author:
Vega-Rubín S. de Celis; Vega-Rubín P. Gómez; Vega-Rubín J. A. Calduch-Giner; Vega-Rubín F. Médale; Vega-Rubín J. Pérez-Sánchez
Source:
Marine biotechnology 2003 v.5 no.1 pp. 92-101
ISSN:
1436-2228
Subject:
Dicentrarchus labrax; Sparus aurata; Western blotting; bacteria; bioactive properties; carbon dioxide; cold storage; complementary DNA; energy; excretion; gas exchange; gel chromatography; homeostasis; insulin-like growth factor I; juveniles; lipids; metabolism; oxygen; polyclonal antibodies; rabbits; radioimmunoassays; recombinant proteins; respiratory quotient; somatotropin; trout
Abstract:
... : AbstractThe complementary DNA coding for European sea bass somatolactin was expressed in the pET-3a bacteria expression vector. The recombinant somatolactin (rbSL) was purified by size exclusion chromatography, and 95% of the protein remained in the oxidized form with negligible aggregation over prolonged cold storage. The identity of the recombinant protein was demonstrated by Western blotting ...
DOI:
10.1007/s10126-002-0053-6

20. How Far Have We Reached in Tuberculosis Vaccine Development?

Author:
Himanshu Kumar; Dheeraj Malhotra; Sanjeev Goswami; R.N.K. Bamezai
Source:
Critical reviews in microbiology 2003 v.29 no.4 pp. 297-312
ISSN:
1549-7828
Subject:
BCG vaccine; Mycobacterium bovis BCG; Mycobacterium tuberculosis; adjuvants; auxotrophs; bacteria; bioinformatics; death; drug therapy; etiological agents; genome; growth retardation; human diseases; immune response; lipids; multiple drug resistance; phagocytes; recombinant vaccines; tuberculosis; vaccine development
Abstract:
... Tuberculosis, a bacterial disease prevalent since ancient times, continues to cause the most deaths globally compared with all other diseases. The causative agent Mycobacterium tuberculosis is responsible for different types of tuberculosis in humans; however, pulmonary tuberculosis is the most common and causes the most deaths. Mycobacterium tuberculosis is an intracellular pathogenic bacterium, ...
DOI:
10.1080/713608013

21. Hyo-on CA Storage (Controlled Freezing Point and Controlled Atmosphere Storage) of Chicken Meat

Author:
Iyoki, Shigeki; Shiomi, Katsuya; Uemura, Tadashi
Source:
Acta horticulturae 2003 v. no.600 pp. 499-501
ISSN:
0567-7572
Subject:
bacteria; carbon dioxide; chicken meat; controlled atmosphere storage; freezing; freezing point; freshness; lipids; oxidation; smell; taste
Abstract:
... The chicken meat was stored by the Hyo-on (controlled freezing point) CA (controlled atmosphere by introducing carbon dioxide, 100%) storage method. Then changes in the qualities of chicken meat stored by the Hyo-on CA storage method were monitored. Based on the measurement data thus obtained, the chicken meat qualities were evaluated depending on freshness (taste), smell, lipids, microbial prolif ...

22. Properties of a Novel Extracellular Cell-free Ice Nuclei from Ice-nucleating Pseudomonas antarctica IN-74

Author:
Naomi MURYOI; Hidehisa KAWAHARA; Hitoshi OBATA
Source:
Bioscience, biotechnology, and biochemistry 2003 v.67 no.9 pp. 1950-1958
ISSN:
1347-6947
Subject:
Pantoea ananatis; Pseudomonas fluorescens; Pseudomonas syringae; bacteria; biotechnology; carbohydrates; cell culture; centrifugation; culture media; gel chromatography; ice; ice nucleation; lipids; pH; ultrafiltration; Antarctica
Abstract:
... Some ice-nucleating bacterial strains, including Pantoea ananatis (Erwinia uredovora), Pseudomonas fluorescens, and Pseudomonas syringae isolates, were examined for the ability to shed ice nuclei into the growth medium. A novel ice-nucleating bacterium, Pseudomonas antarctica IN-74, was isolated from Ross Island, Antarctica. Cell-free ice nuclei from P. antarctica IN-74 were different from the con ...
DOI:
10.1271/bbb.67.1950

23. Supplementation of an isolated fish gut bacterium, Bacillus circulans, in formulated diets for Rohu, Labeo Rohita, fingerlings

Author:
Ghosh, Koushik; Sen, Sukanta Kumar; Ray, Arun Kumar
Source:
Israeli journal of aquaculture Bamidgeh 2003 v.55 no.1 pp. 13-21
ISSN:
0792-156X
Subject:
Bacillus circulans; Labeo rohita; alpha-amylase; aquaculture; bacteria; body weight; dietary supplements; digestibility; digestible protein; enzyme activity; experimental diets; feed conversion; fingerlings; growth performance; intestinal microorganisms; intestines; lipids; protein efficiency ratio; proteinases
Abstract:
... An extracellular protease producing bacteria Bacillus circulans (Lr 1.1) was isolated from the gut of rohu, Labeo rohita, fingerlings, and used as a supplement in five diets for rohu fingerlings. The effect of the supplement on the growth performance and feed utilization efficiency of the rohu was evaluated. Rohu fingerlings (avg wt 0.83+/-0.02 g) were fed diets supplemented with 1.5 x 10(4) (diet ...

24. The Physiological Role of Ferritin-Like Compounds in Bacteria

Author:
James L. Smith
Source:
Critical reviews in microbiology 2004 v.30 no.3 pp. 173-185
ISSN:
1549-7828
Subject:
DNA; bacteria; bacterial proteins; cytosol; ferritin; homeostasis; hydrogen peroxide; hydroxyl radicals; ions; iron; iron overload; lipids; mutants; oxidation; oxidative stress; prokaryotic cells; soil; toxicity
Abstract:
... Iron, as the ferrous or ferric ion, is essential for the life processes of all eukaryotes and most prokaryotes; however, the element is toxic when in excess of that needed for cellular homeostasis. Ferrous ions can react with metabolically generated hydrogen peroxide to yield toxic hydroxyl radicals that in turn degrade lipids, DNA, and other cellular biomolecules. Mechanisms have evolved in livin ...
DOI:
10.1080/10408410490435151

25. Diel Variations in Carbon Metabolism by Green Nonsulfur-Like Bacteria in Alkaline Siliceous Hot Spring Microbial Mats from Yellowstone National Park

Author:
van der Meer, Marcel T. J.; Schouten, Stefan; Bateson, Mary M.; Nůbel, Ulrich; Wieland, Andrea; Kůhl, Michael; de Leeuw, Jan W.; Sinninghe Damsté, Jaap S.; Ward, David M.
Source:
Applied and environmental microbiology 2005 v.71 no.7 pp. 3978-3986
ISSN:
0099-2240
Subject:
temporal variation; national parks; metabolism; acetates; euphotic zone; Chloroflexus; springs (water); bicarbonates; lipids; carbon; hydrogen sulfide; bacteria
Abstract:
... Green nonsulfur-like bacteria (GNSLB) in hot spring microbial mats are thought to be mainly photoheterotrophic, using cyanobacterial metabolites as carbon sources. However, the stable carbon isotopic composition of typical Chloroflexus and Roseiflexus lipids suggests photoautotrophic metabolism of GNSLB. One possible explanation for this apparent discrepancy might be that GNSLB fix inorganic carbo ...
DOI:
10.1128/AEM.71.7.3978-3986.2005
PubMed:
16000812
PubMed Central:
PMC1168979

26. Low-Temperature Growth of Shewanella oneidensis MR-1

Author:
Abboud, Randa; Popa, Radu; Souza-Egipsy, Virginia; Giometti, Carol S.; Tollaksen, Sandra; Mosher, Jennifer J.; Findlay, Robert H.; Nealson, Kenneth H.
Source:
Applied and environmental microbiology 2005 v.71 no.2 pp. 811-816
ISSN:
0099-2240
Subject:
Shewanella oneidensis; bacteria; lipids; proteins; temperature
Abstract:
... Shewanella oneidensis MR-1 is a mesophilic bacterium with a maximum growth temperature of [approximately]35°C but the ability to grow over a wide range of temperatures, including temperatures near zero. At room temperature ([approximately]22°C) MR-1 grows with a doubling time of about 40 min, but when moved from 22°C to 3°C, MR-1 cells display a very long lag phase of more than 100 h followed by v ...
DOI:
10.1128/AEM.71.2.811-816.2005
PubMed:
15691935
PubMed Central:
PMC546687

27. On-Probe Sample Pretreatment for Direct Analysis of Lipids in Gram-Positive Bacterial Cells by Matrix-Assisted Laser Desorption Ionization Mass Spectrometry

Author:
Ishida, Yasuyuki; Kitagawa, Kuniyuki; Nakayama, Akihito; Ohtani, Hajime
Source:
Applied and environmental microbiology 2005 v.71 no.11 pp. 7539-7541
ISSN:
0099-2240
Subject:
bacteria; desorption; ionization; lasers; lipids; mass spectrometry
Abstract:
... On-probe sample pretreatment using trifluoroacetic acid as an additional reagent enabled the direct detection of phospholipids in whole bacteria by means of matrix-assisted laser desorption ionization mass spectrometry for not only gram-negative organisms but also gram-positive ones with a thicker peptidoglycan layer. ...
DOI:
10.1128/AEM.71.11.7539-7541.2005
PubMed:
16269798
PubMed Central:
PMC1287617

28. Quality indicators of cultured Newfoundland blue mussels (Mytilus edulis) during storage on ice: microbial growth, pH, lipid oxidation, chemical composition characteristics, and microbial fatty acid contents

Author:
Khan, M.A.; Parrish, C.C.; Shahidi, F.
Source:
Journal of agricultural and food chemistry 2005 v.53 no.18 pp. 7067-7073
ISSN:
0021-8561
Subject:
Mytilus edulis; mussels; raw foods; cold storage; ice; storage quality; bacteria; food spoilage; food contamination; bacterial contamination; fatty acid composition; pH; microbial growth; lipids; oxidation; proximate composition
Abstract:
... To devise proper strategies to evaluate and maintain the quality of cultured blue mussels (Mytilus edulis) during storage on ice, this study examined the potential use of microbial growth, pH, lipid oxidation, and composition characteristics as quality indicators. It also evaluated the use of individual (i15:0, ai15:0, i16:0, ai16:0, i17:0, ai17:0, 17:0) and total bacterial fatty acid contents as ...
DOI:
10.1021/jf050082g

29. Efficient and Stable Display of Functional Proteins on Bacterial Magnetic Particles Using Mms13 as a Novel Anchor Molecule

Author:
Yoshino, Tomoko; Matsunaga, Tadashi
Source:
Applied and environmental microbiology 2006 v.72 no.1 pp. 465-471
ISSN:
0099-2240
Subject:
Magnetospirillum; Thespesia; antigens; bacteria; bacterial proteins; gold; immunoglobulins; light intensity; lipids; luciferase; magnetite; membrane proteins; nanoparticles; transmission electron microscopy
Abstract:
... Magnetic particles are increasingly used for various biomedical applications because they are easy to handle and separate from biological samples. In this work, a novel anchor molecule was used for targeted protein display onto magnetic nanoparticles. The magnetic bacterium Magnetospirillum magneticum AMB-1 synthesizes intracellular bacterial magnetic particles (BMPs) covered with a lipid bilayer ...
DOI:
10.1128/AEM.72.1.465-471.2006
PubMed:
16391079
PubMed Central:
PMC1352229

30. Glycoprotein 340 in Normal Human Ocular Surface Tissues and Tear Film

Author:
Jumblatt, Marcia M.; Imbert, Yoannis; Young, William W. Jr.; Foulks, Gary N.; Steele, Pamela S.; Demuth, Donald R.
Source:
Infection and immunity 2006 v.74 no.7 pp. 4058-4063
ISSN:
0019-9567
Subject:
Pseudomonas aeruginosa; Staphylococcus aureus; Streptococcus mutans; Western blotting; acinar cells; agglutinins; antimicrobial peptides; bacteria; conjunctiva; cornea; glycoproteins; goblet cells; humans; immunohistochemistry; ions; lacrimal apparatus; lipids; pathogens; quantitative polymerase chain reaction; reverse transcriptase polymerase chain reaction; saliva; tears
Abstract:
... The tear film is a complex mixture of secreted fluid, ions, proteins, glycoproteins, and lipids that lubricates and protects the ocular surface. Recently, several antimicrobial peptides have been described in the tear fluid. In this study, we describe the presence of the large secreted glycoprotein gp340 in the tear film. Western blot analysis showed that gp340 is abundant in secreted tears and in ...
DOI:
10.1128/IAI.01951-05
PubMed:
16790779
PubMed Central:
PMC1489741

31. Histochemical and ultrastructural characterisation of mantle storage cells in the hydrothermal-vent bivalve Bathymodiolus azoricus

Author:
A. Lobo-da-Cunha; E. Kádár; R. Serrão Santos
Source:
Marine biology 2006 v.150 no.2 pp. 253-260
ISSN:
0025-3162
Subject:
Mytilidae; bacteria; droplets; glycogen; granules; lipids; lysosomes; methane; mussels; nutrition; sulfides
Abstract:
... This study reports on two types of storage cells that are present in the mantle connective tissue of the deep-sea mussel Bathymodiolus azoricus. One type corresponds to the adipogranular cells, a kind of storage cell previously described in other bivalves. In these cells extensive regions of the cytoplasm are filled with glycogen deposits and these zones became strongly stained after histochemical ...
DOI:
10.1007/s00227-006-0343-z

32. Lipolytic activity of Antarctic cold-adapted marine bacteria (Terra Nova Bay, Ross Sea)

Author:
Lo Giudice, A.; Michaud, L.; de Pascale, D.; De Domenico, M.; di Prisco, G.; Fani, R.; Bruni, V.
Source:
Journal of applied microbiology 2006 v.101 no.5 pp. 1039-1048
ISSN:
1364-5072
Subject:
Pseudoalteromonas; Psychrobacter; Vibrio; bacteria; culture media; environmental factors; enzymes; fatty acid esters; industrial applications; lipids; lipolysis; pH; salt concentration; sodium chloride; temperature; Antarctic region
Abstract:
... The aim of this study was to investigate the lipolytic activity of cold-adapted Antarctic marine bacteria and, furthermore, the combined effect of some environmental factors on this enzymatic process. Strains were assayed for lipolytic activity on a basal medium amended with seven individual fatty acid esters. A significant activity was observed for 148 isolates (95·5% of the total screened). The ...
DOI:
10.1111/j.1365-2672.2006.03006.x

33. Application of the target lipid model for deriving predicted no-effect concentrations for wastewater organisms

Author:
Redman, A.; McGrath, J.; Febbo, E.; Parkerton, T.; Letinski, D.; Connelly, M.; Winkelmann, D.; Di Toro, D.
Source:
Environmental toxicology and chemistry 2007 v.26 no.11 pp. 2317-2331
ISSN:
0730-7268
Subject:
environmental models; volatile compounds; Tetrahymena; linear models; aquatic organisms; dose response; quantitative structure-activity relationships; meta-analysis; wastewater treatment; nitrification; octanol; lipids; microbial growth; statistical analysis; narcotics; toxicity testing; bacteria; prediction
DOI:
10.1897/07-083R.1
PubMed:
17941743

34. Biofilms of As(III)-oxidising bacteria: formation and activity studies for bioremediation process development

Author:
C. Michel; M. Jean; S. Coulon; M.-C. Dictor; F. Delorme; D. Morin; F. Garrido
Source:
Applied microbiology and biotechnology 2007 v.77 no.2 pp. 457-467
ISSN:
0175-7598
Subject:
Thiomonas arsenivorans; arsenic; bacteria; biofilm; bioreactors; bioremediation; lipids; microbial growth; polystyrenes; proteins; temperature; uronic acids; volcanic ash; yeast extract
Abstract:
... The formation and activity of an As(III)-oxidising biofilm in a bioreactor, using pozzolana as bacterial growth support, was studied for the purpose of optimising fixed-bed bioreactors for bioremediation. After 60 days of continuous functioning with an As(III)-contaminated effluent, the active biofilm was found to be located mainly near the inflow rather than homogeneously distributed. Biofilm dev ...
DOI:
10.1007/s00253-007-1169-4
PubMed:
17846760

35. Biosurfactant production by Corynebacterium kutscheri from waste motor lubricant oil and peanut oil cake

Author:
Thavasi, R.; Jayalakshmi, S.; Balasubramanian, T.; Banat, Ibrahim M.
Source:
Letters in applied microbiology 2007 v.45 no.6 pp. 686-691
ISSN:
0266-8254
Subject:
Corynebacterium kutscheri; anthracenes; bacteria; biomass; bioremediation; biosurfactants; carbohydrate composition; emulsifying; fermenters; kerosene; laboratory experimentation; lipids; naphthalene; octoxynol; peanut cake; peanut oil; petroleum; pollution; xylene
Abstract:
... Production and characterization of biosurfactant from renewable sources. Biosurfactant production was carried out in 3-l fermentor using waste motor lubricant oil and peanut oil cake. Maximum biomass (9·8 mg ml⁻l) and biosurfactant production (6·4 mg ml⁻l) occurred with peanut oil cake at 120 and 132 h, respectively. Chemical characterization of the biosurfactant revealed that it is a glycolipopep ...
DOI:
10.1111/j.1472-765X.2007.02256.x
PubMed:
17944837

36. A Comparative Analysis of Polybrominated Diphenyl Ethers and Polychlorinated Biphenyls in Southern Sea Otters that Died of Infectious Diseases and Noninfectious Causes

Author:
Kannan, Kurunthachalam; Perrotta, Emily; Thomas, Nancy J.; Aldous, Kenneth M.
Source:
Archives of environmental contamination and toxicology 2007 v.53 no.2 pp. 293-302
ISSN:
0090-4341
Subject:
Enhydra lutris; adults; adverse effects; animal health; bacteria; coasts; death; disease resistance; emaciation; fungi; health status; immunotoxicity; infectious diseases; lipids; liver; marine mammals; noninfectious diseases; parasites; pathogens; polybrominated diphenyl ethers; polychlorinated biphenyls; regrowth; Alaska; California
Abstract:
... Southern sea otters (Enhydra lutris nereis) from the California coast continue to exhibit a slower population regrowth rate than the population in Alaska. Infectious diseases have been identified as a frequent cause of death. Infectious diseases caused by varied pathogens including bacteria, fungi, and parasites were suggestive of compromised immunological health of mature animals in this populati ...
DOI:
10.1007/s00244-006-0251-8
PubMed:
17587145

37. Diversity, relative abundance and metabolic potential of bacterial endosymbionts in three Bathymodiolus mussel species from cold seeps in the Gulf of Mexico

Author:
Duperron, Sébastien; Sibuet, Myriam; MacGregor, Barbara J.; Kuypers, Marcel M.M.; Fisher, Chuck R.; Dubilier, Nicole
Source:
Environmental microbiology 2007 v.9 no.6 pp. 1423-1438
ISSN:
1462-2912
Subject:
aquatic invertebrates; bacteria; canyons; carbon; cold; endosymbionts; fluorescence in situ hybridization; genes; gills; hybridization; lipids; methanotrophs; mussels; nucleotide sequences; nutrition; ribosomal RNA; sequence analysis; stable isotopes; symbiosis; Florida; Gulf of Mexico
Abstract:
... Cold seeps in the Gulf of Mexico are often dominated by mussels of the genus Bathymodiolus that harbour symbiotic bacteria in their gills. In this study, we analysed symbiont diversity, abundance and metabolic potential in three mussel species from the northern Gulf of Mexico: Bathymodiolus heckerae from the West Florida Escarpment, Bathymodiolus brooksi from Atwater Valley and Alaminos Canyon, an ...
DOI:
10.1111/j.1462-2920.2007.01259.x
PubMed:
17504480

38. Extraction of Lipids from Municipal Wastewater Plant Microorganisms for Production of Biodiesel

Author:
Dufreche, Stephen; Hernandez, R.; French, T.; Sparks, D.; Zappi, M.; Alley, E.
Source:
journal of the American Oil Chemists' Society 2007 v.84 no.2 pp. 181-187
ISSN:
0003-021X
Subject:
wastewater; sewage sludge; municipal solid waste; bacteria; lipids; transesterification; biodiesel; fatty acid composition
Abstract:
... Municipal wastewater treatment plants in the USA produce over 6.2 x 10⁶ t of dried sewage sludge every year. This microorganism-rich sludge is often landfilled or used as fertilizer. Recent restrictions on the use of sewage sludge, however, have resulted in increased disposal problems. Extraction of lipids from sludge yields an untapped source of cheap feedstock for biodiesel production. Solvents ...
DOI:
10.1007/s11746-006-1022-4

39. Flexibility in the ABC transporter MsbA: Alternating access with a twist

Author:
Ward, Andrew; Reyes, Christopher L.; Yu, Jodie; Roth, Christopher B.; Chang, Geoffrey
Source:
Proceedings of the National Academy of Sciences of the United States of America 2007 v.104 no.48 pp. 19005-19010
ISSN:
0027-8424
Subject:
ABC transporters; X-radiation; bacteria; cell membranes; humans; lipids
Abstract:
... ATP-binding cassette (ABC) transporters are integral membrane proteins that translocate a wide variety of substrates across cellular membranes and are conserved from bacteria to humans. Here we compare four x-ray structures of the bacterial ABC lipid flippase, MsbA, trapped in different conformations, two nucleotide-bound structures and two in the absence of nucleotide. Comparison of the nucleotid ...
DOI:
10.1073/pnas.0709388104
PubMed:
18024585
PubMed Central:
PMC2141898

40. Frankia alni proteome under nitrogen-fixing and nitrogen-replete conditions

Author:
Alloisio, Nicole; Félix, Servane; Maréchal, Joëlle; Pujic, Petar; Rouy, Zoé; Vallenet, David; Medigue, Claudine; Normand, Philippe
Source:
Physiologia plantarum 2007 v.130 no.3 pp. 440-453
ISSN:
0031-9317
Subject:
Alnus; lasers; secretion; ionization; genome; lipids; bacterial proteins; cell differentiation; two-dimensional gel electrophoresis; proteome; Streptococcaceae; bacteria; Frankia alni; oxygen; databases; root nodules; biosynthesis; nitric oxide; nitrogen; succinate dehydrogenase (quinone); nitrogenase; desorption
Abstract:
... Frankia alni induces root nodules on Alnus, in which the bacterium differentiates into nitrogen (N)-fixing cells called vesicles. In culture, F. alni also undergoes major morphological changes as it alternates between N-replete and N-fixing conditions. Lack of biologically available N induces the synthesis of vesicles in which nitrogenase is protected from molecular oxygen by a thick lipid hopanoi ...
DOI:
10.1111/j.1399-3054.2007.00859.x

41. Impact of carbon metabolism on ¹³C signatures of cyanobacteria and green non-sulfur-like bacteria inhabiting a microbial mat from an alkaline siliceous hot spring in Yellowstone National Park (USA)

Author:
Meer, Marcel T.J. van der; Schouten, Stefan; Sinninghe Damsté, Jaap S.; Ward, David M.
Source:
Environmental microbiology 2007 v.9 no.2 pp. 482-491
ISSN:
1462-2912
Subject:
Cyanobacteria; autotrophs; bacteria; bicarbonates; biomass; carbon; centrifugation; fermentation; glucose; lipids; national parks; organic compounds; spring; United States
Abstract:
... Alkaline siliceous hot spring microbial mats in Yellowstone National Park are composed of two dominant phototropic groups, cyanobacteria and green non-sulfur-like bacteria (GNSLB). While cyanobacteria are thought to cross-feed low-molecular-weight organic compounds to support photoheterotrophic metabolism in GNSLB, it is unclear how this could lead to the heavier stable carbon isotopic signatures ...
DOI:
10.1111/j.1462-2920.2006.01165.x

42. Molecular evidence of Late Archean archaea and the presence of a subsurface hydrothermal biosphere

Author:
Ventura, Gregory T.; Kenig, Fabien; Reddy, Christopher M.; Schieber, Juergen; Frysinger, Glenn S.; Nelson, Robert K.; Dinel, Etienne; Gaines, Richard B.; Schaeffer, Philippe
Source:
Proceedings of the National Academy of Sciences of the United States of America 2007 v.104 no.36 pp. 14260-14265
ISSN:
0027-8424
Subject:
Archaea; argillite; bacteria; biosphere; gold; graphene; hydrogenation; isomerization; lipids; mineralization; organic matter; porosity; sediments; solvents; thermal stress; Ontario
Abstract:
... Highly cracked and isomerized archaeal lipids and bacterial lipids, structurally changed by thermal stress, are present in solvent extracts of 2,707- to 2,685-million-year-old (Ma) metasedimentary rocks from Timmins, ON, Canada. These lipids appear in conventional gas chromatograms as unresolved complex mixtures and include cyclic and acyclic biphytanes, C₃₆-C₃₉ derivatives of the biphytanes, and ...
DOI:
10.1073/pnas.0610903104
PubMed:
17726114
PubMed Central:
PMC1964827

43. Novel hopanoid cyclases from the environment

Author:
Pearson, Ann; Flood Page, Sarah R.; Jorgenson, Tyler L.; Fischer, Woodward W.; Higgins, Meytal B.
Source:
Environmental microbiology 2007 v.9 no.9 pp. 2175-2188
ISSN:
1462-2912
Subject:
amino acids; bacteria; bacterioplankton; biomarkers; biosynthesis; databases; genes; genomic libraries; isoprenoids; lipids; sedimentary rocks; sediments; surveys
Abstract:
... Hopanoids are ubiquitous isoprenoid lipids found in modern biota, in recent sediments and in low-maturity sedimentary rocks. Because these lipids primarily are derived from bacteria, they are used as proxies to help decipher geobiological communities. To date, much of the information about sources of hopanoids has come from surveys of culture collections, an approach that does not address the vast ...
DOI:
10.1111/j.1462-2920.2007.01331.x
PubMed:
17686016

44. Phenolic compounds of origanum sipyleum l. extract, and its antioxidant and antibacterial activities

Author:
OZKAN, GULCAN; SAGDIC, OSMAN; EKICI, LUTFIYE; OZTURK, ISMET; OZCAN, M. MUSA
Source:
Journal of food lipids 2007 v.14 no.2 pp. 157-169
ISSN:
1065-7258
Subject:
2,2-diphenyl-1-picrylhydrazyl; Origanum; Yersinia enterocolitica; agar; antibacterial properties; antioxidant activity; antioxidants; apigenin; bacteria; beverages; caffeic acid; cardiovascular diseases; carvacrol; diet; flowers; gallic acid; genistin; herbs; hesperidin; human health; indigenous species; lipids; luteolin; monoterpenoids; naringenin; naringin; neoplasms; phytopharmaceuticals; reversed-phase high performance liquid chromatography; rosmarinic acid; rutin; spices; tea; vegetables; Turkey (country)
Abstract:
... The flowers of Origanum sipyleum L., which is an endemic species in Turkey, are traditionally used as a beverage and medicinal tea. The extract was analyzed by reversed-phase high-performance liquid chromatography. The main phenolic compounds of O. sipyleum contained 6.81 ± 1.95, 3.94 ± 1.65, 6.78 ± 1.53, 6.71 ± 1.01, 4.95 ± 3.30, 870.22 ± 82.66, 19.47 ± 1.77 and 1017.33 ± 93.06 mg/100 g herb of a ...
DOI:
10.1111/j.1745-4522.2007.00077.x

45. Production, quality assessment and acceptability of african yam bean sphenostylis stenoscarpa sauce

Author:
ARISA, N.U.; OGBUELE, O.C.
Source:
Journal of food processing and preservation 2007 v.31 no.6 pp. 771-778
ISSN:
0145-8892
Subject:
Sphenostylis stenocarpa; ash content; bacteria; condiments; consumer acceptance; crops; farmers; fast food restaurants; food preparation; gravy; income; lipids; microbial load; microbiological quality; nutritive value; pastries; product safety; proteins; raw materials; rice; solid state fermentation; soups; soy sauce; soybeans; spices; stews; Indonesia
Abstract:
... Sauces (15 and 20% brine solution) were made from African yam beans (AYBs) using a combination of solid and liquid state fermentations as practiced in Indonesia. They were analyzed to ascertain their nutritive value, microbiological safety and consumer acceptability. Results showed that the protein, fat, ash and carbohydrate contents were 4.85, 3.82, 11.82 and 16.75%, respectively, for 15% brine s ...
DOI:
10.1111/j.1745-4549.2007.00152.x

46. The Response of Carbon Metabolism and Antioxidant Defenses of Alfalfa Nodules to Drought Stress and to the Subsequent Recovery of Plants

Author:
Naya, Loreto; Ladrera, Ruben; Ramos, Javier; González, Esther M.; Arrese-Igor, Cesar; Minchin, Frank R.; Becana, Manuel
Source:
Plant physiology 2007 v.144 no.2 pp. 1104-1114
ISSN:
0032-0889
Subject:
Medicago sativa; alfalfa; antioxidants; ascorbate peroxidase; bacteria; carbon; catalase; drought; enzyme activity; enzyme inhibition; genes; glutathione-disulfide reductase; homoglutathione synthase; leaf water potential; lipids; malates; messenger RNA; nodulation; oxidative stress; proteins; sucrose; superoxide dismutase; water stress
Abstract:
... Alfalfa (Medicago sativa) plants were exposed to drought to examine the involvement of carbon metabolism and oxidative stress in the decline of nitrogenase (N₂ase) activity. Exposure of plants to a moderate drought (leaf water potential of -1.3 MPa) had no effect on sucrose (Suc) synthase (SS) activity, but caused inhibition of N₂ase activity (-43%), accumulation of succinate (+36%) and Suc (+58%) ...
DOI:
10.1104/pp.107.099648
PubMed:
17468213
PubMed Central:
PMC1914205

47. S-layers as a tool kit for nanobiotechnological applications

Author:
Sleytr, Uwe B.; Huber, Carina; Ilk, Nicola; Pum, Dietmar; Schuster, Bernhard; Egelseer, Eva M.
Source:
FEMS microbiology letters 2007 v.267 no.2 pp. 131-144
ISSN:
0378-1097
Subject:
bacteria; biomimetics; lipids; nucleic acids; polysaccharides; proteins
Abstract:
... Crystalline bacterial cell surface layers (S-layers) have been identified in a great number of different species of bacteria and represent an almost universal feature of archaea. Isolated native S-layer proteins and S-layer fusion proteins incorporating functional sequences self-assemble into monomolecular crystalline arrays in suspension, on a great variety of solid substrates and on various lipi ...
DOI:
10.1111/j.1574-6968.2006.00573.x

48. Structural characterization of diabolic acid-based tetraester, tetraether and mixed ether/ester, membrane-spanning lipids of bacteria from the order Thermotogales

Author:
Damsté, Jaap S. Sinninghe; Rijpstra, W. Irene C.; Hopmans, Ellen C.; Schouten, Stefan; Balk, Melike; Stams, Alfons J. M.
Source:
Archives of microbiology 2007 v.188 no.6 pp. 629-641
ISSN:
0302-8933
Subject:
Fervidobacterium; Thermosipho; Thermotoga; bacteria; biosynthesis; glycerol; high performance liquid chromatography; lipids; phylogeny
Abstract:
... The distribution of core lipids in the membranes of nine different species of the order Thermotogales, one of the early and deep branching lineages in the Bacteria, were examined by HPLC/MS and demonstrated to consist of membrane-spanning diglycerol lipids comprised of diabolic acid-derived alkyl moieties. In the Thermotoga species the core membrane lipids are characterized by the presence of both ...
DOI:
10.1007/s00203-007-0284-z
PubMed:
17643227
PubMed Central:
PMC2111041

49. Survival of Lactobacillus reuteri RC-14 and Lactobacillus rhamnosus GR-1 in milk

Author:
Hekmat, Sharareh; Reid, Gregor
Source:
International journal of food science & technology 2007 v.42 no.5 pp. 615-619
ISSN:
0950-5423
Subject:
starter cultures; fermented dairy products; survival rate; monitoring; medicinal properties; yeast extract; storage time; lipids; milk; probiotics; inulin; Lactobacillus rhamnosus; Lactobacillus reuteri; bacteria; additives
Abstract:
... Dairy products are suitable vehicles for delivering beneficial microorganisms to consumers. Both Lactobacillus reuteri RC-14 and Lactobacillus rhamnosus GR-1 are considered as probiotic agents with therapeutic properties. The objective of this study was to monitor growth and survival of these bacteria in milk during storage period. Four formulations of milk (1% fat) with 0.33% yeast extract (Y), 0 ...
DOI:
10.1111/j.1365-2621.2006.01292.x

50. Technical quality of dog food and salmon feed containing different bacterial protein sources and processed by different extrusion conditions

Author:
Øverland, M.; Romarheim, O.H.; Ahlstrøm, O.; Storebakken, T.; Skrede, A.
Source:
Animal feed science and technology 2007 v.134 no.1-2 pp. 124-139
ISSN:
0377-8401
Subject:
feed meals; nutrient content; protein supplements; feed additives; absorption; dogs; homogenizers; starch; nutritive value; lipids; pelleted feeds; pet foods; salmon; extrusion; digestibility; extruded foods; fish feeding; bacteria; homogenization
DOI:
10.1016/j.anifeedsci.2006.05.014