Academic literature on the topic 'Microcoleus'

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Journal articles on the topic "Microcoleus"

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Rosowski, J. R., J. J. Shaffer, E. L. Martin, T. A. Kokjohn, and K. W. Lee. "First Report of a Putative Cyanophage, Mc-1, of Microcoleus Sp." Microscopy and Microanalysis 5, S2 (1999): 1142–43. http://dx.doi.org/10.1017/s1431927600019036.

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A current review (1) lists 21 cyanophages of coccoid and filamentous heterocystic and non-heterocystic blue-green algae (BGA). The capsid diameters of these viruses range from 50-90 nm, and none have been previously reported for Microcoleus,a sheath-producing, filamentous, surface colonizing BGA (Fig. 1), of the order Oscillatoriales, and class Cyanophyceae (= Cyanobacteria). From a freshwater culture of Microcoleussp. we report here a putative cyanophage with a side-to-side hexagonal capsid diameter of 140 nm, based on measurements from thin sections of algal filaments prepared for transmissi
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Trnková, Kateřina, and Nele Tschense. "Structure and function of biological soil crusts from Antarctica with a special respect to their microtopography and UV-B sensitivity." Czech Polar Reports 9, no. 2 (2019): 243–50. http://dx.doi.org/10.5817/cpr2019-2-20.

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Although an extensive professional literature exists on biological soil crusts (BSCs), especially on the species composition of hetero- and autotrophs forming the micro-biological comunity, micromorphological information on BSCs is extremely scarce. In our study, we focused on microstructure of the BSCs from the James Ross Island (Antarctica). We combined the approach of digital microscopy to study surface roughness of the BSCs with taxonomy of BSC-forming autotrophs and chlorophyll fluorescence study focused on the photosynthetic functioning of BSCs when exposed to controlled UV-B stress. Mic
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Hernández-Mariné, Mariona. "Electron microscopic characterization of Microcoleus chthonoplastes THUR. (Cyanobacteria)." Algological Studies/Archiv für Hydrobiologie, Supplement Volumes 83 (December 19, 1996): 347–65. http://dx.doi.org/10.1127/algol_stud/83/1996/347.

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Grimalt, Joan O., Rutger de Wit, Pilar Teixidor, and Joan Albaigés. "Lipid biogeochemistry of Phormidium and Microcoleus mats." Organic Geochemistry 19, no. 4-6 (1992): 509–30. http://dx.doi.org/10.1016/0146-6380(92)90015-p.

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Omoregie, Enoma O., Lori L. Crumbliss, Brad M. Bebout, and Jonathan P. Zehr. "Determination of Nitrogen-Fixing Phylotypes in Lyngbya sp. and Microcoleuschthonoplastes Cyanobacterial Mats from Guerrero Negro, Baja California, Mexico." Applied and Environmental Microbiology 70, no. 4 (2004): 2119–28. http://dx.doi.org/10.1128/aem.70.4.2119-2128.2004.

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ABSTRACT In many environments, biological nitrogen fixation can alleviate nitrogen limitation. The high rates of N2 fixation often observed in cyanobacterial mats suggest that N2 fixation may be an important source of N. In this study, organisms expressing nifH were identified in a Lyngbya sp.- and two Microcoleus chthonoplastes-dominated cyanobacterial mats. The pattern of nitrogenase activity was determined for the Lyngbya sp. mat and a Microcoleus chthonoplastes mat sampled directly in Guerrero Negro, Mexico. Their maximum rates were 23 and 15 μmol of C2H4 m−2 h−1, respectively. The second
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Wit, Rutger, Wim H. M. Boekel, and Hans Gemerden. "Growth of the cyanobacterium Microcoleus chtonoplastes on sulfide." FEMS Microbiology Letters 53, no. 3-4 (1988): 203–9. http://dx.doi.org/10.1111/j.1574-6968.1988.tb02665.x.

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Kupriyanova, E. V., A. G. Markelova, N. V. Lebedeva, L. M. Gerasimenko, G. A. Zavarzin, and N. A. Pronina. "Carbonic Anhydrase of the Alkaliphilic Cyanobacterium Microcoleus chthonoplastes." Microbiology 73, no. 3 (2004): 255–59. http://dx.doi.org/10.1023/b:mici.0000032233.36705.5a.

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Wit, Rutger, and Hans Gemerden. "Oxidation of sulfide to thiosulfate by Microcoleus chtonoplastes." FEMS Microbiology Letters 45, no. 1 (1987): 7–13. http://dx.doi.org/10.1111/j.1574-6968.1987.tb02332.x.

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MACHADO DE LIMA, NÁTHALI MARIA, and LUIS H. Z. BRANCO. "Biological soil crusts: new genera and species of Cyanobacteria from Brazilian semi-arid regions." Phytotaxa 470, no. 4 (2020): 263–81. http://dx.doi.org/10.11646/phytotaxa.470.4.1.

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In the uppermost millimeters of soils is commonly found a thin layer of cryptobiotic organisms, including cyanobacteria, microalgae, lichens, mosses, fungi, bacteria and archaea. These communities are called Biological Soil Crusts (BSCs) or biocrusts and perform important ecological functions, mainly attributed to their capacity of providing soil stability and incorporate nutrients through nitrogen and carbon fixation. Among all the organisms found in the biocrusts, the filamentous cyanobacteria Microcoleus vaginatus and M. steenstrupii are the best studied soil colonizers. The genus Microcole
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Davydov, Denis. "Cyanoprokaryotes of the west part of Oscar II Land, West Spitsbergen Island, Spitsbergen archipelago." Czech Polar Reports 7, no. 1 (2017): 94–108. http://dx.doi.org/10.5817/cpr2017-1-10.

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The present study provides new information about the diversity of freshwater and terrestrial cyanoprokaryotes of the western part of the Oscar II Land, Spitsbergen (Svalbard) archipelago. Altogether, and 51 taxa were found in different habitats (29 species was found on wet rocks, 21 on the seepages, 18 on the lakes, 11 on the moss tundra), mainly in wet ones. Nostoc commune, Gloeocapsa kuetzingiana, Microcoleus autumnalis, and Microcoleus vaginatus dominated almost all types of habitats. Aphanocapsa rivularis and Woronichinia karelica are reported for the first time for Spitsbergen flora. The
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Dissertations / Theses on the topic "Microcoleus"

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Davies, Gail. "The physiological-ecology of the cyanobacterium Microcoleus." Thesis, Durham University, 1989. http://etheses.dur.ac.uk/6508/.

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A study was carried out to determine how widespread N(_2) fixation is in the cyanobacterium Microcoleus, both in the laboratory and in the field. The research was extended to compare the influence of environmental variables on both Ng fixing and non-fixing strains of Microcoleus isolated from a range of habitats. Since the morphology of Microcoleus strains is likely to influence their physiology, attempts were made to grow them in vitro in a form morphologically akin to that in the field i.e. with a communal sheath. Limited success was achieved with Microcoleus D634 on incubating in standard m
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Lodders, Nicole. "Genetische Populationsstrukturen und Biogeographie des Cyanobakteriums Microcoleus chthonoplastes." [S.l.] : [s.n.], 2006. http://www.digibib.tu-bs.de/?docid=00012465.

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Stephens, Elizabeth A. "Microcoleus dominated salt marsh microbial mats: Spirochetes and sulfide." 2009. https://scholarworks.umass.edu/dissertations/AAI3351414.

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Microbial mats are synergistic microbial consortia through which major elements, including sulfur, are cycled due to microbial and geological processes. Depth profiles of pH, O2, sulfide, exopolymeric substances (EPS), and the rate of sulfate reduction were determined in a Microcoleus -dominated marine microbial mat at the Great Sippewissett salt marsh, Massachusetts. In addition, measurements in spirochete enrichments and Spirochaetae litoralis cultures showed sulfide consumption during which polysulfides, thiosulfate, and presumably sulfate formed. These data suggest that spirochetes can pla
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Lodders, Nicole [Verfasser]. "Genetische Populationsstrukturen und Biogeographie des Cyanobakteriums Microcoleus chthonoplastes / von Nicole Lodders." 2006. http://d-nb.info/981286585/34.

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STRUNECKÝ, Otakar. "Phylogeny, Phytogeography, and Taxonomy of Polar Oscillatoriales." Doctoral thesis, 2012. http://www.nusl.cz/ntk/nusl-112747.

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Morphological and phylogenetic diversity of 143 strains belonging to Oscillatoriales with focuson traditional genera Phormidium sensu lato and Microcoleus were studied. The 88 strains of Ph. autumnale, Ph. setchelianum, Ph. subfuscum, Ph. favosum etc., and M. vaginatus confirmed the generic identity with typical Microcoleus Desmazi?res ex Gomont. The necessary nomenclatoric transfers were realized defining the revised genus Microcoleus. Based on phylogeny and morphology the taxonomic revision of the Antarctic species Ph. murrayi (Lyngbya murray West & West) was implemented and the genus Wilmot
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"Microbial Restoration Ecology of Biological Soil Crusts." Doctoral diss., 2019. http://hdl.handle.net/2286/R.I.53653.

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abstract: Biological soil crusts (biocrusts) are topsoil communities of organisms that contribute to soil fertility and erosion resistance in drylands. Anthropogenic disturbances can quickly damage these communities and their natural recovery can take decades. With the development of accelerated restoration strategies in mind, I studied physiological mechanisms controlling the establishment of cyanobacteria in biocrusts, since these photoautotrophs are not just the biocrust pioneer organisms, but also largely responsible for improving key soil attributes such as physical stability, nutrient co
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Book chapters on the topic "Microcoleus"

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Moezelaar, Roy, and Lucas J. Stal. "Anaerobic dark energy generation in the mat-building cyanobacterium Microcoleus chthonoplastes." In Microbial Mats. Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-642-78991-5_28.

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Ramsing, Niels B., and Lee Prufert-Bebout. "Motility of Microcoleus chthonoplastes subjected to different light intensities quantified by digital image analysis." In Microbial Mats. Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-642-78991-5_19.

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de Wit, Rutger, Joan O. Grimalt, and Mariona Hernandez-Mariné. "Morphological and chemical transformations of Microcoleus chthonoplastes during early diagenesis in hypersaline microbial mats." In Microbial Mats. Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-642-78991-5_7.

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Prufert-Bebout, Lee, and Ferran Garcia-Pichel. "Field and cultivated Microcoleus chthonoplastes: The search for clues to its prevalence in marine microbial mats." In Microbial Mats. Springer Berlin Heidelberg, 1994. http://dx.doi.org/10.1007/978-3-642-78991-5_12.

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Marais, David J. Des. "Marine Hypersaline Microcoleus-Dominated Cyanobacterial Mats in the Saltern at Guerrero Negro, Baja California Sur, Mexico: A System-Level Perspective." In Cellular Origin, Life in Extreme Habitats and Astrobiology. Springer Netherlands, 2010. http://dx.doi.org/10.1007/978-90-481-3799-2_21.

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