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Artículos de revistas sobre el tema "Leptothrix"

Autor: Grafiati

Publicado: 26 de julio de 2024

Última modificación: 31 de julio de 2025

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1

Vieira-Baptista, Pedro, Joana Lima-Silva, Mario Preti, et al. "Vaginal Leptothrix: An Innocent Bystander?" Microorganisms 10, no. 8 (2022): 1645. http://dx.doi.org/10.3390/microorganisms10081645.

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Leptothrix are long bacteria of rare occurrence; although these bacteria have been implicated in causing vaginal symptoms identical to candidiasis, studies on prevalence and effect on overall vaginal health are lacking. In this study, we evaluated data of women referred to a private clinic for treating vulvovaginal symptoms (n = 1847) and reassessed data of our previous and ongoing studies (n = 1773). The overall rate of leptothrix was 2.8% (102/3620), and the mean age of affected women was 38.8 ± 10.65 years (range 18−76). The majority of the women with leptothrix had normal vaginal flora (63

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2

Spring, Stefan, Peter Kampfer, Wolfgang Ludwig, and Karl-Heinz Schleifer. "Polyphasic Characterization of the Genus Leptothrix: New Descriptions of Leptothrix mobilis sp. nov. and Leptothrix discophora sp. nov. nom. rev. and Emended Description of Leptothrix cholodnii emend." Systematic and Applied Microbiology 19, no. 4 (1996): 634–43. http://dx.doi.org/10.1016/s0723-2020(96)80036-1.

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3

Mirzayeva, D. M., and S. A. Aghayeva. "Mechanism of formation water molecules and chemical bonds in Leptothrix materials." Advanced Physical Research 6, no. 1 (2024): 5–14. http://dx.doi.org/10.62476/apr61514.

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The provided study involves investigating chemical interactions in Leptothrix biomaterial through infrared spectroscopy. The analysis explores variations in chemical relationships based on the nature of chemical bonds and biomaterial coordinates. The primary chemical bonds identified in the biomaterial are associated with Fe-O vibrations and resonances of [OH] functional groups. Additionally, the study presents model representations detailing the formation mechanism of water molecules within the Leptothrix matrix. Model calculations for a two-vacancy cluster defect structure in Fe2O3 and Fe3O4

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4

Nakatsu, Cindy H., Krassimira Hristova, Satoshi Hanada, et al. "Methylibium petroleiphilum gen. nov., sp. nov., a novel methyl tert-butyl ether-degrading methylotroph of the Betaproteobacteria." International Journal of Systematic and Evolutionary Microbiology 56, no. 5 (2006): 983–89. http://dx.doi.org/10.1099/ijs.0.63524-0.

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A Gram-negative, rod-shaped, motile, non-pigmented, facultative aerobe that grew optimally at pH 6.5 and 30 °C (strain PM1T) was isolated for its ability to completely degrade the gasoline additive methyl tert-butyl ether. Analysis of the 16S rRNA gene sequence indicated that this bacterium was a member of the class Betaproteobacteria in the Sphaerotilus–Leptothrix group. The 16S rRNA gene sequence identity to other genera in this group, Leptothrix, Aquabacterium, Roseateles, Sphaerotilus, Ideonella and Rubrivivax, ranged from 93 to 96 %. The chemotaxonomic data including Q-8 as the major quin

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5

Boogerd, F. C., and J. P. de Vrind. "Manganese oxidation by Leptothrix discophora." Journal of Bacteriology 169, no. 2 (1987): 489–94. http://dx.doi.org/10.1128/jb.169.2.489-494.1987.

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6

Kunoh, Tatsuki, Hideki Hashimoto, Ian McFarlane, et al. "Abiotic Deposition of Fe Complexes onto Leptothrix Sheaths." Biology 5, no. 2 (2016): 26. http://dx.doi.org/10.3390/biology5020026.

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7

Adams, Lee F., and William C. Ghiorse. "Physiology and ultrastructure of Leptothrix discophora SS-1." Archives of Microbiology 145, no. 2 (1986): 126–35. http://dx.doi.org/10.1007/bf00446769.

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8

Zumbroich, Thomas. "Manganbakterium Leptothrix echinata und der Eintrag von Mangan (II, IV) in die Wiehltalsperre." Decheniana : Verhandlungen des Naturhistorischen Vereins der Rheinlande und Westfalens 140 (January 1, 1987): 184–89. http://dx.doi.org/10.21248/decheniana.v140.4275.

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Im Zeitraum vom Juni 1984 bis zum Juni 1985 wurde das Wasser der Wiehltalsperre/Oberbergisches Land chemisch und biologisch analysiert. Dabei ergaben sich wichtige Aspekte bezüglich des Manganeintrages und seiner Wirkung auf die Biozönose des Sees (Erscheinen von Leptothrix echinata). Durch mehrfache Analyse des Zulaufwassers (zuletzt im Juni 1986) ließ sich nachweisen, daß die hohe Manganfracht einiger Bäche aus hydrothermal vererzten Stellen bzw. aus Abraumhalden des Erzbergbaues im Wassereinzugsgebiet stammt.

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9

Sung, Eun-Hae, Ji-Sun Han, Chang-Min Ahn, Hyung Joon Seo, and Chang-Gyun Kim. "Biological metal corrosion in saline systems by sulfur-reducing and iron-oxidizing bacteria." Water Quality Research Journal 46, no. 4 (2011): 321–31. http://dx.doi.org/10.2166/wqrjc.2011.009.

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This study investigated whether any possible bio-corrosion of pumps could occur when operating underground pumping stations in coastal regions. Groundwater in the stations was found to contain Leptothrix sp. (iron-oxidizing bacteria, IOB) and Desulfovibrio sp. (sulfur-reducing bacteria, SRB). Four different metal specimens were exposed to saline water media, where Leptothrix sp. or Desulfovibrio sp. were inoculated solely or together. The result showed that IOB not only provoke the corrosion of galvanized and stainless steels but also accelerate (by 5–10 times) the formation of zinc/iron preci

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10

Araujo, Maicon, Rueda Daniela Gutierrez, Yuhao Li, Janice Kenney, Daniel Alessi, and Kurt Konhauser. "Surface reactivity of the iron and manganese-oxidizing bacterium Leptothrix cholodnii SP-6." ARPHA Conference Abstracts 6 (October 13, 2023): e108135. https://doi.org/10.3897/aca.6.e108135.

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Surfaces of prokaryotic cells play a significant role in the adsorption of metals from aqueous solution and the formation of authigenic minerals (Konhauser 2006). Although most studies focus on the cell wall, it is known that many bacteria synthesise an extracellular layer of polysaccharides and proteins, including what are known as sheaths. It has been shown that the cyanobacterium <em>Calothrix</em> sp. produces as sheath which is neutrally charged at circumneutral pH values, and it was hypothesized that such a sheath might allow the cyanobacterium to survive in geothermal settings with high

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11

Yurt, N., J. Sears, and Z. Lewandowski. "Multiple Substrate Growth Kinetics of Leptothrix discophora SP-6." Biotechnology Progress 18, no. 5 (2002): 994–1002. http://dx.doi.org/10.1021/bp0255098.

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12

Zhang, Jinghao, Leonard W. Lion, Yarrow M. Nelson, Michael L. Shuler, and William C. Ghiorse. "Kinetics of Mn(II) oxidation by Leptothrix discophora SS1." Geochimica et Cosmochimica Acta 66, no. 5 (2002): 773–81. http://dx.doi.org/10.1016/s0016-7037(01)00808-0.

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13

Carlile, Michael J., and A. William L. Dudeney. "The discs of Leptothrix discophora: lost for 89 years?" Microbiology 147, no. 6 (2001): 1393–94. http://dx.doi.org/10.1099/00221287-147-6-1393.

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14

Barahona, Sergio, Johanna Cortés, Martha Hengst, Cristina Dorador, and Francisco Remonsellez. "Diversity of Thermophilic Iron-Pyrite-Oxidizing Enrichments from Solfataric Hot Springs in the Chilean Altiplano." Solid State Phenomena 262 (August 2017): 526–30. http://dx.doi.org/10.4028/www.scientific.net/ssp.262.526.

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Relatively little is known about the microbial communities present in natural environments that meet physico-chemical conditions for the development of potential leaching microorganisms such as thermal ecosystems from the Chilean Altiplano. Thermophilic leaching enrichments were obtained and identified from a high altitude solfataric pound in Lirima hot springs in the Chilean Altiplano. This ecosystem is characterized by hot underground freshwaters, enriched in sulfur compounds showing pH from neutral to acidic. Microbial diversity has been scarcely explored here, and preliminary results demon

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15

Lechner, Ute, Danny Brodkorb, Roland Geyer, et al. "Aquincola tertiaricarbonis gen. nov., sp. nov., a tertiary butyl moiety-degrading bacterium." International Journal of Systematic and Evolutionary Microbiology 57, no. 6 (2007): 1295–303. http://dx.doi.org/10.1099/ijs.0.64663-0.

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Strains L10T, L108 and CIP I-2052 were originally obtained from methyl tert-butyl ether (MTBE)-contaminated groundwater and from a wastewater treatment plant, respectively. All share the ability to grow on tert-butanol, an intermediate of MTBE degradation. Cells are strictly aerobic, motile by a polar flagellum and exhibit strong pili formation. Poly β-hydroxybutyrate (PHB) granules are formed. The DNA G+C content is 69–70.5 mol% and the main ubiquinone is Q-8. The major cellular fatty acids are 16 : 1 cis-9 and 16 : 0 and the only hydroxy fatty acid is 10 : 0 3-OH. The major phospholipids are

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16

Evdokimova, N. V., and T. V. Chernenkaya. "Leptotrichia and leptothrix: linguistic incident, or difficulties of microbiological diagnostics?" Medical alphabet, no. 13 (June 29, 2021): 47–50. http://dx.doi.org/10.33667/2078-5631-2021-13-47-50.

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In medical literature bacteria of the genera Leptotrix and Leptotrichia are often considered as identical. Actually, they are antipodes, standing very far apart from each other in evolutionary terms. The confusion arose due to morphological similarity (filamentous forms). Leptotrix is a type of iron bacteria that live in neutral and slightly acidic fresh waters with a very low concentration of organic matter. The energy metabolism of leptotrix is strictly aerobic, oxidative, and chemoorganoheterotrophic (they oxidize divalent iron ions into trivalent iron to produce energy). Its clinical role

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17

Hope, C. K., and T. R. Bott. "Laboratory modelling of manganese biofiltration using biofilms of Leptothrix discophora." Water Research 38, no. 7 (2004): 1853–61. http://dx.doi.org/10.1016/j.watres.2003.12.031.

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18

Tang, Kit Lam, and Benoit Guénard. "Further additions to the knowledge of Strumigenys (Formicidae: Myrmicinae) within South East Asia, with the descriptions of 20 new species." European Journal of Taxonomy 907 (November 14, 2023): 1–144. http://dx.doi.org/10.5852/ejt.2023.907.2327.

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The species of the ant genus Strumigenys Smith, 1860 from Southeast Asia are reviewed based on recent sampling efforts as well as unreported historical material from southern mainland China, Japan, Taiwan, Thailand and Vietnam. We report 42 new species records for these regions. A total of 20 species new to science are described: S. anhdaoae sp. nov., S. claviseta sp. nov., S. crinigera sp. nov., S. decumbens sp. nov., S. delicata sp. nov., S. densissima sp. nov., S. doydeei sp. nov., S. fellowesi sp. nov., S. intermedia sp. nov., S. jaitrongi sp. nov., S. liuweii sp. nov., S. longidens sp. no

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19

Cepák, Vladislav, and Jaromír Lukavský. "Cryoseston of the Pirin Mountains, Bulgaria." Acta Botanica Croatica 72, no. 2 (2013): 257–68. http://dx.doi.org/10.2478/botcro-2013-0012.

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Abstract - In the cryoseston community of the Pirin Mountains, 18 species were determined. Chlorophyta: Chlamydomonas nivalis (predominant), Chloromonas brevispina, Chloromonas rostafinski, Chlainomonas rubra (new genus and species for Bulgaria, documented in Europe for only the second time), Cystococcus nivicolus and Stichococcus nivalis. Bacillariophyceae: Aulacoseira granulata var. angustissima, Hantzchia amphioxys, cf. Surirella. Fungi: cf. Chytridium chlamydococcii. Deuteromycetes: Selenotila nivalis, Chionaster nivalis, and saprophytic fungae cf. Myzocytium, Rhodosporidium toruloides, Al

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20

SATOU, Kazuhiro, and Kazue TAZAKI. "Accumulation of Biogenic Iron Hydroxides by Leptothrix ochracea at Neutral pH." Journal of Environmental Conservation Engineering 33, no. 6 (2004): 467–75. http://dx.doi.org/10.5956/jriet.33.467.

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21

Vesenka, James, James Havu, Kate Hruby, and David Emerson. "A Model for Sheath Formation Coupled to Motility in Leptothrix ochracea." Geomicrobiology Journal 35, no. 5 (2018): 366–74. http://dx.doi.org/10.1080/01490451.2017.1370516.

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22

El Gheriany, Iman A., Daniela Bocioaga, Anthony G. Hay, William C. Ghiorse, Michael L. Shuler, and Leonard W. Lion. "Iron Requirement for Mn(II) Oxidation by Leptothrix discophora SS-1." Applied and Environmental Microbiology 75, no. 5 (2008): 1229–35. http://dx.doi.org/10.1128/aem.02291-08.

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ABSTRACT A common form of biocatalysis of Mn(II) oxidation results in the formation of biogenic Mn(III, IV) oxides and is a key reaction in the geochemical cycling of Mn. In this study, we grew the model Mn(II)-oxidizing bacterium Leptothrix discophora SS-1 in media with limited iron (0.1 μM iron/5.8 mM pyruvate) and sufficient iron (0.2 μM iron/5.8 mM pyruvate). The influence of iron on the rate of extracellular Mn(II) oxidation was evaluated. Cultures in which cell growth was limited by iron exhibited reduced abilities to oxidize Mn(II) compared to cultures in medium with sufficient iron. Wh

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23

Kunoh, Tatsuki, Makoto Nakanishi, Yoshihiro Kusano, et al. "Biosorption of metal elements by exopolymer nanofibrils excreted from Leptothrix cells." Water Research 122 (October 2017): 139–47. http://dx.doi.org/10.1016/j.watres.2017.05.003.

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24

Nell, Ryan M., Jennifer E. S. Szymanowski, and Jeremy B. Fein. "Divalent metal cation adsorption onto Leptothrix cholodnii SP-6SL bacterial cells." Chemical Geology 439 (November 2016): 132–38. http://dx.doi.org/10.1016/j.chemgeo.2016.06.021.

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25

Dickinson, W. H., F. Caccavo, B. Olesen, and Z. Lewandowski. "Ennoblement of Stainless Steel by the Manganese-Depositing Bacterium Leptothrix discophora." Applied and environmental microbiology 63, no. 7 (1997): 2502–6. http://dx.doi.org/10.1128/aem.63.7.2502-2506.1997.

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26

Takeda, Minoru, Hiroko Makita, Katsutoshi Ohno, Yuichi Nakahara, and Jun-ichi Koizumi. "Structural analysis of the sheath of a sheathed bacterium, Leptothrix cholodnii." International Journal of Biological Macromolecules 37, no. 1-2 (2005): 92–98. http://dx.doi.org/10.1016/j.ijbiomac.2005.09.002.

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27

Carpén, L., L. Raaska, K. Kujanpää, and T. Hakkarainen. "Effects of Leptothrix discophora on the potential behavior of stainless steel." Materials and Corrosion 54, no. 7 (2003): 515–19. http://dx.doi.org/10.1002/maco.200390114.

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28

Sawayama, Michinori, Tomoko Suzuki, Hideki Hashimoto, et al. "Isolation of a Leptothrix Strain, OUMS1, from Ocherous Deposits in Groundwater." Current Microbiology 63, no. 2 (2011): 173–80. http://dx.doi.org/10.1007/s00284-011-9957-6.

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29

Grynyk, E., and E. Singayevskiy. "The spiders (Arachnida, Aranei) in the landscape reserve "Yakhnivsky" (Kyiv region)." Bulletin of Taras Shevchenko National University of Kyiv. Series: Biology 83, no. 4 (2020): 33–37. http://dx.doi.org/10.17721/1728_2748.2020.83.33-37.

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For the first time, the species composition and relative abundance of spiders in pine and alder forests within the Yakhnovsky reserve have been studied; 46 species of spiders which represent 17 families were found. It was found that quantitatively in the pine forest spiders of the families Linyphiidae (43,4 %) and Araneidae (42,9 %) prevail, and in the alder forest – Tetragnathidae (37 %) and Linyphiidae (34 %). In the herbaceous layer of the pine forest, spiders of Araneidae family dominated quantitatively, and in the litter dominated Linyphiidae spiders – 91 %. In the herbaceous layer of the

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30

Govorova, Zhanna, Ekaterina Muraveva, Vadim Govorov, and Vasiliy Semenovykh. "Technology of groundwater biological deferrization." MATEC Web of Conferences 251 (2018): 03036. http://dx.doi.org/10.1051/matecconf/201825103036.

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Applicability of development of technology using bioreactor and floating media filter is shown. The technology is based on the biological oxidation of iron and manganese by a group of iron oxidizing bacteria (IOB). The description, the operating principle and the results of technology testing are given. If the content of iron is 4,9-5,71 mg/L, manganese - 0,12-0,2 mg/L and carbon dioxide and hydrogen sulphide are present, the quality of treated water meets all normative requirements. A microscopic analysis of the backwash water from bioreactor and filter was carried out. It has been establishe

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31

Thyssen, Christian, David Holuscha, Jens Kuhn, Friederike Walter, Wolfram Fürbeth, and Wolfgang Sand. "Biofilm Formation and Stainless Steel Corrosion Analysis of Leptothrix discophora ." Advanced Materials Research 1130 (November 2015): 79–82. http://dx.doi.org/10.4028/www.scientific.net/amr.1130.79.

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Bioleaching and biocorrosion are based on similar biochemical processes. Microbe-surface interaction, biofilm formation and concomitant extracellular polymeric substance (EPS) production gained increasing interest in the past decades. Nowadays it is generally accepted that biofilm formation and an accompanying formation of manganese oxides by manganese oxidizing bacteria such as Leptothrix spp. account for one type of pitting corrosion of stainless steel (SS). However, little is known about biofilm formation, EPS composition of manganese oxidizing microorganisms and their influence on microbio

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32

Corstjens, P. L., J. P. de Vrind, P. Westbroek, and E. W. de Vrind-de Jong. "Enzymatic iron oxidation by Leptothrix discophora: identification of an iron-oxidizing protein." Applied and Environmental Microbiology 58, no. 2 (1992): 450–54. http://dx.doi.org/10.1128/aem.58.2.450-454.1992.

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33

Adams, Lee F., and William C. Ghiorse. "Influence of Manganese on Growth of a Sheathless Strain of Leptothrix discophora." Applied and Environmental Microbiology 49, no. 3 (1985): 556–62. http://dx.doi.org/10.1128/aem.49.3.556-562.1985.

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34

Kunoh, Tatsuki, Kana Morinaga, Shinya Sugimoto, et al. "Polyfunctional Nanofibril Appendages Mediate Attachment, Filamentation, and Filament Adaptability in Leptothrix cholodnii." ACS Nano 14, no. 5 (2019): 5288–97. http://dx.doi.org/10.1021/acsnano.9b04663.

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35

Emerson, D., and W. C. Ghiorse. "Ultrastructure and chemical composition of the sheath of Leptothrix discophora SP-6." Journal of Bacteriology 175, no. 24 (1993): 7808–18. http://dx.doi.org/10.1128/jb.175.24.7808-7818.1993.

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36

Nakajima-Kambe, Toshiaki, Kieko Toyoshima, Chika Saito, et al. "Rapid monomerization of poly(butylene succinate)-co-(butylene adipate) by Leptothrix sp." Journal of Bioscience and Bioengineering 108, no. 6 (2009): 513–16. http://dx.doi.org/10.1016/j.jbiosc.2009.05.018.

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37

Kumar, Uma, Udita Singhal, Pooja Jain, and Shalini Trivedi. "Cytomorphological spectrum of cervicovaginal infections and their prevalence with clinical correlation on pap smears: A three-year retrospective study." Panacea Journal of Medical Sciences 12, no. 1 (2022): 97–101. http://dx.doi.org/10.18231/j.pjms.2022.019.

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Cervical-vaginal infections are one of the most common infections seen in women of the reproductive age group. The important infectious agents in Gardnerella vaginalis, Candida, and Trichomonas vaginalis. Pap smear cytology is used as an important screening test for various epithelial cell abnormalities and cervical cancer. It is also useful in the diagnosis of various pathogenic microorganisms causing cervicovaginal infections. To determine the prevalence of cervicovaginal infections on Pap smears, and study their cytomorphology and clinical correlation. : This is a three-year retrospective s

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38

Matýsek, Dalibor, and Jakub Jirásek. "Nepodceňujme mikrobiální precipitaci oxihydroxidů železa a manganu v životním prostředí." Bulletin Mineralogie Petrologie 29, no. 1 (2021): 115–23. http://dx.doi.org/10.46861/bmp.29.115.

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Dolníček (2020) described several occurrences of bog iron (limonite), which according to his article originates in recent streams by chemical precipitation, without the important role of microorganisms on this process. However, similar occurrences of reddish or orange slime, frequently accompanied by oil-like films floating on the water, are according to many papers ascribed to the biogenic iron oxidation by bacteria. To solve the origin of such precipitates, we have sampled similar materials in four places near Ostrava - Hrabová, two close to Řepiště and Staříč, and also two sites in the vici

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39

Seppänen, Harri. "Biological Treatment of Groundwater in Basins with Floating Filters–II. The Role of Microorganisms in Floating Filters." Water Science and Technology 20, no. 3 (1988): 185–87. http://dx.doi.org/10.2166/wst.1988.0097.

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The role of certain types of bacteria is quite decisive in the formation of iron and manganese precipitates. Bacteria and other organisms participate in the precipitation of soluble iron and manganese in many different ways. The production of hydrogen peroxide seems to be an important phase in the formation of the precipitates. Bacteria produce hydrogen peroxide as an intermediate or an end product of metabolic processes (Gorlenko etal., 1983). Iron and manganese bacteria are typical gradient organisms, growing in a sharp gradient between oxidized and reduced environments. Iron precipitating t

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40

Bocioaga, Daniela, Iman A. El Gheriany, Leonard W. Lion, William C. Ghiorse, Michael L. Shuler, and Anthony G. Hay. "Development of a genetic system for a model manganese-oxidizing proteobacterium, Leptothrix discophora SS1." Microbiology 160, no. 11 (2014): 2396–405. http://dx.doi.org/10.1099/mic.0.079459-0.

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Understanding the molecular underpinnings of manganese oxidation in Leptothrix discophora SS1 has been hampered by the lack of a genetic system. In this report, we describe the development of a genetic system for L. discophora SS1. The antibiotic sensitivity was characterized, and a procedure for transformation with exogenous DNA via conjugation was developed and optimized, resulting in a maximum transfer frequency of 5.2×10−1 and a typical transfer frequency of the order of 1×10−3 transconjugants per donor. Genetic manipulation of L. discophora SS1 was demonstrated by disrupting pyrF via chro

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41

Angelova, R., L. Slavov, B. Blagoev, et al. "Biogenic ferroxides derived from Leptothrix bacteria for applications in electronics, biomedicine and biotechnology." IOP Conference Series: Materials Science and Engineering 1056, no. 1 (2021): 012009. http://dx.doi.org/10.1088/1757-899x/1056/1/012009.

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42

Suzuki, Tomoko, Hiromichi Ishihara, Mitsuaki Furutani, Tomonori Shiraishi, Hitoshi Kunoh, and Jun Takada. "A Novel Method for Culturing of Leptothrix sp. Strain OUMS1 in Natural Conditions." Minerals 2, no. 2 (2012): 118–28. http://dx.doi.org/10.3390/min2020118.

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43

Suzuki, Tomoko, Hiromichi Ishihara, Kazuhiro Toyoda, Tomonori Shiraishi, Hitoshi Kunoh, and Jun Takada. "Autolysis of Bacterial Cells Leads to Formation of Empty Sheaths by Leptothrix spp." Minerals 3, no. 2 (2013): 247–57. http://dx.doi.org/10.3390/min3020247.

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44

Suzuki, Tomoko, Tatsuki Kunoh, Daisuke Nakatsuka, et al. "Use of Iron Powder to Obtain High Yields of Leptothrix Sheaths in Culture." Minerals 5, no. 2 (2015): 335–45. http://dx.doi.org/10.3390/min5020335.

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45

Kunoh, Tatsuki, Tomoko Suzuki, Tomonori Shiraishi, Hitoshi Kunoh, and Jun Takada. "Treatment of Leptothrix Cells with Ultrapure Water Poses a Threat to Their Viability." Biology 4, no. 1 (2015): 50–66. http://dx.doi.org/10.3390/biology4010050.

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46

Hashimoto, Hideki, Atsushi Itadani, Takayuki Kudoh, et al. "Nano–Micrometer-Architectural Acidic Silica Prepared from Iron Oxide of Leptothrix ochracea Origin." ACS Applied Materials & Interfaces 5, no. 11 (2013): 5194–200. http://dx.doi.org/10.1021/am401029r.

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47

Angelova, R., V. Groudeva, L. Slavov, et al. "Investigation of iron-containing products from natural and laboratory cultivated Sphaerotilus-Leptothrix bacteria." Journal of Biological Physics 41, no. 4 (2015): 367–75. http://dx.doi.org/10.1007/s10867-015-9384-1.

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48

Takeda, Minoru, Yuta Kawasaki, Takuto Umezu, Shoichi Shimura, Makoto Hasegawa, and Jun-ichi Koizumi. "Patterns of sheath elongation, cell proliferation, and manganese(II) oxidation in Leptothrix cholodnii." Archives of Microbiology 194, no. 8 (2012): 667–73. http://dx.doi.org/10.1007/s00203-012-0801-6.

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49

Prysiazhniuk, Olena, Igor Prysіazhnіuk, and Alexander Kvartenko. "Mathematical modeling of the process of ferrum removal in a biological reactor by bacteria Gallionella and Leptothrix." Modeling, Control and Information Technologies, no. 4 (October 22, 2020): 51–54. http://dx.doi.org/10.31713/mcit.2020.07.

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This paper proposes a mathematical model for computer prediction of the process of biological deironing of groundwater in a bioreactor, taking into account the presence of two types of iron bacteria Leptothrix and Gallionella in groundwater while maintaining a constant filtration rate. An algorithm for a numerical-analytical method for solving the corresponding nonlinear boundary value problem for an inhomogeneous system of differential equations in partial derivatives of the first order has been developed. The developed model allows to use computer experiments to predict the change in time on

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50

Shopska, Maya, Zara Cherkezova-Zheleva, Daniela Paneva, et al. "Biogenic iron compounds: XRD, Mossbauer and FTIR study." Open Chemistry 11, no. 2 (2013): 215–27. http://dx.doi.org/10.2478/s11532-012-0148-5.

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AbstractMaterials based on biogenic iron oxides, which are a product of the metabolic activities of the neutrophilic iron-oxidizing bacteria (NIOB) from Sphaerotilus-Leptothrix group, were investigated. Natural microbial probes were collected from freshwater flow from Vitosha Mountain (Bulgaria) and cultivated under laboratory conditions in respect to select suitable cultures and conditions (nutrition media) for biomaterial accumulation of biogenic oxides. Samples were studied by physicochemical methods: X-ray diffraction, Mossbauer spectroscopy and IR spectroscopy. Their phase composition and

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