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Articles de revues sur le sujet « Cyanobacteriia »

Auteur : Grafiati

Publié le 2 juin 2025

Mis à jour le 31 juillet 2025

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1

Hurley, Sarah J., Boswell A. Wing, Claire E. Jasper, Nicholas C. Hill, and Jeffrey C. Cameron. "Carbon isotope evidence for the global physiology of Proterozoic cyanobacteria." Science Advances 7, no. 2 (2021): eabc8998. http://dx.doi.org/10.1126/sciadv.abc8998.

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Ancestral cyanobacteria are assumed to be prominent primary producers after the Great Oxidation Event [≈2.4 to 2.0 billion years (Ga) ago], but carbon isotope fractionation by extant marine cyanobacteria (α-cyanobacteria) is inconsistent with isotopic records of carbon fixation by primary producers in the mid-Proterozoic eon (1.8 to 1.0 Ga ago). To resolve this disagreement, we quantified carbon isotope fractionation by a wild-type planktic β-cyanobacterium (Synechococcus sp. PCC 7002), an engineered Proterozoic analog lacking a CO2-concentrating mechanism, and cyanobacterial mats. At mid-Prot

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Machado, de Lima N.M., and L.H.Z. Branco. "Machado de Lima, N.M. & Branco, L.H.Z. (2020) Biological soil crusts: new genera and species of Cyanobacteria from Brazilian semi-arid regions. Phytotaxa 470 (4): 263-281." Phytotaxa 472, no. 3 (2020): 299–300. https://doi.org/10.11646/phytotaxa.472.3.10.

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Machado de Lima, N.M., Branco, L.H.Z. (2020): Machado de Lima, N.M. & Branco, L.H.Z. (2020) Biological soil crusts: new genera and species of Cyanobacteria from Brazilian semi-arid regions. Phytotaxa 470 (4): 263-281. Phytotaxa 472 (3): 299-300, DOI: 10.11646/phytotaxa.472.3.10, URL: http://dx.doi.org/10.11646/phytotaxa.472.3.10

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Lee, Ok-Min. "Newly recorded genera and species, Pantanalinema rosaneae and Alkalinema pantanalense (Leptolyngbyaceae, Cyanobacteria) isolated in Korea." Journal of Species Research 11, no. 1 (2022): 10–21. https://doi.org/10.12651/JSR.2022.11.1.010.

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Lee, Ok-Min (2022): Newly recorded genera and species, Pantanalinema rosaneae and Alkalinema pantanalense (Leptolyngbyaceae, Cyanobacteria) isolated in Korea. Journal of Species Research 11 (1): 10-21, DOI: 10.12651/JSR.2022.11.1.010

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Sant'Anna, Célia L., Jan Kaštovský, Guilherme S. Hentschke, and Jiŕí Komárek. "Phenotypic studies on terrestrial stigonematacean Cyanobacteria from the Atlantic Rainforest, São Paulo State, Brazil." Phytotaxa 89, no. 1 (2013): 1–23. https://doi.org/10.11646/phytotaxa.89.1.1.

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Sant'Anna, Célia L., Kaštovský, Jan, Hentschke, Guilherme S., Komárek, Jiŕí (2013): Phenotypic studies on terrestrial stigonematacean Cyanobacteria from the Atlantic Rainforest, São Paulo State, Brazil. Phytotaxa 89 (1): 1-23, DOI: 10.11646/phytotaxa.89.1.1, URL: http://dx.doi.org/10.11646/phytotaxa.89.1.1

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Abdullin, Shamil R., Arthur Yu. Nikulin, Veronika B. Bagmet, Vyacheslav Yu. Nikulin, and Andrey A. Gontcharov. "New cyanobacterium Aliterella vladivostokensis sp. nov. (Aliterellaceae, Chroococcidiopsidales), isolated from temperate monsoon climate zone (Vladivostok, Russia)." Phytotaxa 527, no. 3 (2021): 221–33. https://doi.org/10.11646/phytotaxa.527.3.7.

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Abdullin, Shamil R., Nikulin, Arthur Yu., Bagmet, Veronika B., Nikulin, Vyacheslav Yu., Gontcharov, Andrey A. (2021): New cyanobacterium Aliterella vladivostokensis sp. nov. (Aliterellaceae, Chroococcidiopsidales), isolated from temperate monsoon climate zone (Vladivostok, Russia). Phytotaxa 527 (3): 221-233, DOI: 10.11646/phytotaxa.527.3.7

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Bae, Eun Hee, Jae-Shin Kang, and Chong-Sung Park. "New report on cyanophyte in Korea, Microseira wollei (Farlow ex Gomont) G.B.McGregor and Sendall ex Kennis (Oscillatoriaceae)." Journal of Species Research 9, no. 3 (2020): 210–17. https://doi.org/10.12651/JSR.2020.9.3.210.

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Bae, Eun Hee, Kang, Jae-Shin, Park, Chong-Sung (2020): New report on cyanophyte in Korea, Microseira wollei (Farlow ex Gomont) G.B.McGregor and Sendall ex Kennis (Oscillatoriaceae). Journal of Species Research 9 (3): 210-217, DOI: 10.12651/JSR.2020.9.3.210, URL: http://dx.doi.org/10.5281/zenodo.13140644

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Tawong, Wittaya, Tomohiro Nishimura, Pongsanat Pongcharoen, et al. "Molecular characterization uncovering a novel genus of tapering-filamentous cyanobacteria from Thailand: Phayaothrix lacustris gen. & sp. nov. (Nostocales, Cyanophyta)." Phytotaxa 647, no. 1 (2024): 34–52. https://doi.org/10.11646/phytotaxa.647.1.3.

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Tawong, Wittaya, Nishimura, Tomohiro, Pongcharoen, Pongsanat, Saijuntha, Weerachai, Kucharoenphaibul, Siriwat, Sunpapao, Pathipat, Pongpadung, Piyawat, Ponza, Supat (2024): Molecular characterization uncovering a novel genus of tapering-filamentous cyanobacteria from Thailand: Phayaothrix lacustris gen. & sp. nov. (Nostocales, Cyanophyta). Phytotaxa 647 (1): 34-52, DOI: 10.11646/phytotaxa.647.1.3, URL: http://dx.doi.org/10.11646/phytotaxa.647.1.3

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Garduño-Solórzano, Gloria, Martha Martínez-García, Guilherme Scotta Hentschke, Luis Fernando Miguel Solorza, and Vitor M. Vasconcelos. "A phylogenetically distant clade of Nostoc-like (Cyanobacteria) taxa with the description of Reofilinostoc matlalcueyense gen. et sp. nov. from an extreme environment." Phytotaxa 655, no. 2 (2024): 125–43. https://doi.org/10.11646/phytotaxa.655.2.2.

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Garduño-Solórzano, Gloria, Martínez-García, Martha, Hentschke, Guilherme Scotta, Solorza, Luis Fernando Miguel, Vasconcelos, Vitor M. (2024): A phylogenetically distant clade of Nostoc-like (Cyanobacteria) taxa with the description of Reofilinostoc matlalcueyense gen. et sp. nov. from an extreme environment. Phytotaxa 655 (2): 125-143, DOI: 10.11646/phytotaxa.655.2.2, URL: http://dx.doi.org/10.11646/phytotaxa.655.2.2

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Hašler, Petr, Allan Pentecost, Eva Jahodářová, Petr Dvořák, and Aloisie Poulíčková. "Taxonomic revision of Ulva montana (Lightfoot 1777) and description of a new genus of Lightfootiella (Cyanophyceae, Chroococcaceae)." Phytotaxa 362, no. 2 (2018): 173–86. https://doi.org/10.11646/phytotaxa.362.2.4.

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Hašler, Petr, Pentecost, Allan, Jahodářová, Eva, Dvořák, Petr, Poulíčková, Aloisie (2018): Taxonomic revision of Ulva montana (Lightfoot 1777) and description of a new genus of Lightfootiella (Cyanophyceae, Chroococcaceae). Phytotaxa 362 (2): 173-186, DOI: 10.11646/phytotaxa.362.2.4, URL: http://dx.doi.org/10.11646/phytotaxa.362.2.4

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Gold-Morgan, Michele, Laura González-Resendiz, Hilda León-Tejera, and Gustavo Montejano. "Description of coccoid cyanoprokaryote Nisada stipitata morphogen. et sp. nov. from the supralittoral zone in the tropical Mexican Pacific." Phytotaxa 220, no. 3 (2015): 268–76. https://doi.org/10.11646/phytotaxa.220.3.5.

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Gold-Morgan, Michele, González-Resendiz, Laura, León-Tejera, Hilda, Montejano, Gustavo (2015): Description of coccoid cyanoprokaryote Nisada stipitata morphogen. et sp. nov. from the supralittoral zone in the tropical Mexican Pacific. Phytotaxa 220 (3): 268-276, DOI: 10.11646/phytotaxa.220.3.5, URL: http://dx.doi.org/10.11646/phytotaxa.220.3.5

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Popović, Slađana, Gordana Subakov Simić, Aleksandra Korać, Igor Golić, and Jiří Komárek. "Nephrococcus serbicus, a new coccoid cyanobacterial species from Božana Cave, Serbia." Phytotaxa 289, no. 2 (2016): 135–46. https://doi.org/10.11646/phytotaxa.289.2.3.

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Popović, Slađana, Simić, Gordana Subakov, Korać, Aleksandra, Golić, Igor, Komárek, Jiří (2016): Nephrococcus serbicus, a new coccoid cyanobacterial species from Božana Cave, Serbia. Phytotaxa 289 (2): 135-146, DOI: 10.11646/phytotaxa.289.2.3, URL: http://dx.doi.org/10.11646/phytotaxa.289.2.3

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Lamprinou, Vasiliki, Maria Christodoulou, Mariona Hernandez-Marine, Aristeidis Parmakelis, and Athena Economou-Amilli. "Spelaeonaias gen. nov., a new true-branched cyanobacterium from Cave Vlychada (Diros, Peloponnese, Greece)." Phytotaxa 282, no. 3 (2016): 171–85. https://doi.org/10.11646/phytotaxa.282.3.1.

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Lamprinou, Vasiliki, Christodoulou, Maria, Hernandez-Marine, Mariona, Parmakelis, Aristeidis, Economou-Amilli, Athena (2016): Spelaeonaias gen. nov., a new true-branched cyanobacterium from Cave Vlychada (Diros, Peloponnese, Greece). Phytotaxa 282 (3): 171-185, DOI: 10.11646/phytotaxa.282.3.1, URL: http://dx.doi.org/10.11646/phytotaxa.282.3.1

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León-Tejera, Hilda, Laura González-Resendiz, Jeffrey R. Johansen, Claudia Segal-Kischinevzky, Viviana Escobar-Sánchez, and Luisa Alba-Lois. "Phylogenetic position reevaluation of Kyrtuthrix and description of a new species K. huatulcensis from Mexico´s Pacific coast." Phytotaxa 278, no. 1 (2016): 1–18. https://doi.org/10.11646/phytotaxa.278.1.1.

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León-Tejera, Hilda, González-Resendiz, Laura, Johansen, Jeffrey R., Segal-Kischinevzky, Claudia, Escobar-Sánchez, Viviana, Alba-Lois, Luisa (2016): Phylogenetic position reevaluation of Kyrtuthrix and description of a new species K. huatulcensis from Mexico´s Pacific coast. Phytotaxa 278 (1): 1-18, DOI: 10.11646/phytotaxa.278.1.1, URL: http://dx.doi.org/10.11646/phytotaxa.278.1.1

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Keshari, Nitin, Sudipta Kumar Das, and Siba Prasad Adhikary. "Schmidleinema santiniketanense sp. nov. (Cyanobacteria/ Cyanoprokaryota) from a building facade in Santiniketan, India." Phytotaxa 283, no. 2 (2016): 181–87. https://doi.org/10.11646/phytotaxa.283.2.7.

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Keshari, Nitin, Das, Sudipta Kumar, Adhikary, Siba Prasad (2016): Schmidleinema santiniketanense sp. nov. (Cyanobacteria/ Cyanoprokaryota) from a building facade in Santiniketan, India. Phytotaxa 283 (2): 181-187, DOI: 10.11646/phytotaxa.283.2.7, URL: http://dx.doi.org/10.11646/phytotaxa.283.2.7

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Mcgregor, Glenn B., and Barbara C. Sendall. "Potamosiphon australiensis gen. nov., sp nov. (Oscillatoriales), a new filamentous cyanobacterium from subtropical north-eastern Australia." Phytotaxa 387, no. 2 (2019): 77–93. https://doi.org/10.11646/phytotaxa.387.2.1.

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Mcgregor, Glenn B., Sendall, Barbara C. (2019): Potamosiphon australiensis gen. nov., sp nov. (Oscillatoriales), a new filamentous cyanobacterium from subtropical north-eastern Australia. Phytotaxa 387 (2): 77-93, DOI: 10.11646/phytotaxa.387.2.1, URL: http://dx.doi.org/10.11646/phytotaxa.387.2.1

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Zhang, Qi, Lingling Zheng, Tianli Li, Renhui Li, and Lirong Song. "Aliterella shaanxiensis (Aliterellaceae), a new coccoid cyanobacterial species from China." Phytotaxa 374, no. 3 (2018): 211–20. https://doi.org/10.11646/phytotaxa.374.3.2.

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Zhang, Qi, Zheng, Lingling, Li, Tianli, Li, Renhui, Song, Lirong (2018): Aliterella shaanxiensis (Aliterellaceae), a new coccoid cyanobacterial species from China. Phytotaxa 374 (3): 211-220, DOI: 10.11646/phytotaxa.374.3.2, URL: http://dx.doi.org/10.11646/phytotaxa.374.3.2

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Rangel, Luciana M., Lúcia H. S. Silva, Elisabeth J. Faassen, Miquel Lürling, and Kemal Ali Ger. "Copepod Prey Selection and Grazing Efficiency Mediated by Chemical and Morphological Defensive Traits of Cyanobacteria." Toxins 12, no. 7 (2020): 465. http://dx.doi.org/10.3390/toxins12070465.

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Phytoplankton anti-grazer traits control zooplankton grazing and are associated with harmful blooms. Yet, how morphological versus chemical phytoplankton defenses regulate zooplankton grazing is poorly understood. We compared zooplankton grazing and prey selection by contrasting morphological (filament length: short vs. long) and chemical (saxitoxin: STX- vs. STX+) traits of a bloom-forming cyanobacterium (Raphidiopsis) offered at different concentrations in mixed diets with an edible phytoplankton to a copepod grazer. The copepod selectively grazed on the edible prey (avoidance of cyanobacter

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Parida, Anirbana, Samujjal Bhattacharjee, Prashansa Singh, and Arun Kumar Mishra. "Physiological and biochemical modulations in the thermophilic cyanobacterium Westiellopsis sp. TPR-29 under high sulfur supplementations." Journal of Bioresources 9, no. 2 (2022): 20–25. https://doi.org/10.5281/zenodo.8275344.

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Cyanobacteria demonstrate versatile utilization of inorganic sulfur sources, contributing to the global sulfur cycle. Their resilience is evident in adapting to diverse sulfur bioavailability in different ecosystems. However, the impact of high sulfur concentrations on cyanobacterial physiology is a concern. This study focused on <em>Westiellopsis</em> sp. TPR-29, a heterocytous branched cyanobacterium inhabiting a sulfur-rich hot spring. The cyanobacterium was exposed to different sulfate concentrations (50 mM, 500 mM, and 650 mM), along with a control group (0.3 mM). After a 7-day

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Nakayama, Takuro, Mami Nomura, Yoshihito Takano, et al. "Single-cell genomics unveiled a cryptic cyanobacterial lineage with a worldwide distribution hidden by a dinoflagellate host." Proceedings of the National Academy of Sciences 116, no. 32 (2019): 15973–78. http://dx.doi.org/10.1073/pnas.1902538116.

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Cyanobacteria are one of the most important contributors to oceanic primary production and survive in a wide range of marine habitats. Much effort has been made to understand their ecological features, diversity, and evolution, based mainly on data from free-living cyanobacterial species. In addition, symbiosis has emerged as an important lifestyle of oceanic microbes and increasing knowledge of cyanobacteria in symbiotic relationships with unicellular eukaryotes suggests their significance in understanding the global oceanic ecosystem. However, detailed characteristics of these cyanobacteria

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Caraco, N. F., and R. Miller. "Effects of CO2 on competition between a cyanobacterium and eukaryotic phytoplankton." Canadian Journal of Fisheries and Aquatic Sciences 55, no. 1 (1998): 54–62. http://dx.doi.org/10.1139/f97-202.

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To distinguish whether there is a causal link between cyanobacterial dominance and low CO2 and (or) the associated high pH, we ran duplicate competition experiments using a factorial design of CO2 by alkalinity. In various treatments, three concentrations of alkalinity (ca. 50, 500, and 5000 µequiv. ·L-1) and CO2 (ca. 1.3, 13, and 130 µM) generated three pH values (ca. 7, 8, and 9). At the end of about a 1-week incubation, Aphanizomenon flos aquae was the only cyanobacterium present, while the chlorophytes Scenedesmus and Selenastrum along with unidentified flagellates comprised the eukaryotic

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Rajabpour, Nooshin, Bahareh Nowruzi, and Maryam Ghobeh. "Investigation of the toxicity, antioxidant and antimicrobial activities of some cyanobacterial strains isolated from different habitats." Acta Biologica Slovenica 62, no. 2 (2019): 4–12. http://dx.doi.org/10.14720/abs.62.2.15753.

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Cyanobacteria are known as a source of fine chemicals, renewable fuels, and toxic compounds. The present study aimed at evaluating the toxicity and antioxidant and antimicrobial activities of four cyanobacterial strains isolated from different habitats. Due to the lack of information regarding the relationship between toxicity and biological activity of the cyanobacteria in terrestrial and aquatic ecosystems of Iran, we decided to conduct a preliminary study on the cyanobacterial strains in order to identify the potentially toxic cyanobacteria strains. In this respect, biosynthesis genes relat

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Berthold, David E., Forrest W. Lefler, and H. Dail Laughinghouse. "Recognizing novel cyanobacterial diversity in marine benthic mats, with the description of Sirenicapillariaceae fam. nov., two new genera, Sirenicapillaria gen. nov. and Tigrinifilum gen. nov., and seven new species." Phycologia 61, no. 2 (2022): 146–65. https://doi.org/10.1080/00318884.2021.2006589.

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Berthold, David E., Lefler, Forrest W., Laughinghouse, H. Dail (2022): Recognizing novel cyanobacterial diversity in marine benthic mats, with the description of Sirenicapillariaceae fam. nov., two new genera, Sirenicapillaria gen. nov. and Tigrinifilum gen. nov., and seven new species. Phycologia 61 (2): 146-165, DOI: 10.1080/00318884.2021.2006589, URL: https://doi.org/10.1080/00318884.2021.2006589

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Deng, Ming-De, and John R. Coleman. "Ethanol Synthesis by Genetic Engineering in Cyanobacteria." Applied and Environmental Microbiology 65, no. 2 (1999): 523–28. http://dx.doi.org/10.1128/aem.65.2.523-528.1999.

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ABSTRACT Cyanobacteria are autotrophic prokaryotes which carry out oxygenic photosynthesis and accumulate glycogen as the major form of stored carbon. In this research, we introduced new genes into a cyanobacterium in order to create a novel pathway for fixed carbon utilization which results in the synthesis of ethanol. The coding sequences of pyruvate decarboxylase (pdc) and alcohol dehydrogenase II (adh) from the bacterium Zymomonas mobilis were cloned into the shuttle vector pCB4 and then used to transform the cyanobacterium Synechococcus sp. strain PCC 7942. Under control of the promoter f

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Douglas, Angela E., and John A. Raven. "Genomes at the interface between bacteria and organelles." Philosophical Transactions of the Royal Society of London. Series B: Biological Sciences 358, no. 1429 (2003): 5–18. http://dx.doi.org/10.1098/rstb.2002.1188.

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The topic of the transition of the genome of a free–living bacterial organism to that of an organelle is addressed by considering three cases. Two of these are relatively clear–cut as involving respectively organisms (cyanobacteria) and organelles (plastids). Cyanobacteria are usually free–living but some are involved in symbioses with a range of eukaryotes in which the cyanobacterial partner contributes photosynthesis, nitrogen fixation, or both of these. In several of these symbioses the cyanobacterium is vertically transmitted, and in a few instances, sufficient unsuccessful attempts have b

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Kollmen, Jonas, and Dorina Strieth. "The Beneficial Effects of Cyanobacterial Co-Culture on Plant Growth." Life 12, no. 2 (2022): 223. http://dx.doi.org/10.3390/life12020223.

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Cyanobacteria are ubiquitous phototrophic prokaryotes that find a wide range of applications in industry due to their broad product spectrum. In this context, the application of cyanobacteria as biofertilizers and thus as an alternative to artificial fertilizers has emerged in recent decades. The benefit is mostly based on the ability of cyanobacteria to fix elemental nitrogen and make it available to the plants in a usable form. However, the positive effects of co-cultivating plants with cyanobacteria are not limited to the provision of nitrogen. Cyanobacteria produce numerous secondary metab

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Dash, Sidhartha Kumar, Jitendra Kumar Pandey, Mrutyunjay Jena, and Basanti Biswal. "Effect of Heat Stress and the Recovery Potential of Heterocystous Cyanobacterium, Anabaena iyengarii Bharadwaja 1935." Journal of Pure and Applied Microbiology 14, no. 4 (2020): 2467–76. http://dx.doi.org/10.22207/jpam.14.4.24.

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Cyanobacteria, the major photosynthetic organisms, cover a large surface area of this planet. These organisms, being photosynthetic, have the capacity for sequestration of atmospheric carbon dioxide, a significant greenhouse gas that causes global warming. In this work, we have collected, developed pure culture, and identified 25 cyanobacterial species from semi arid agricultural rice fields of western Odisha with the high-temperature environmental setting. The purpose was to screen the cyanobacteria that can survive and grow at high temperatures with high photosynthetic efficiency. Cyanobacte

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Koval, Ekaterina V., and Svetlana Yu Ogorodnikova. "The prospect of using the cyanobacterium Nostoc muscorum to improve vital activity of barley seedlings by various methods of seed treatment." BIO Web of Conferences 36 (2021): 04005. http://dx.doi.org/10.1051/bioconf/20213604005.

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The influence of the cyanobacterium Nostoc muscorum on vital activity of barley seedlings of the species Novichok was researched. In the experiments different ways of cyanobacterial treatment were used: introducing microorganisms in the growth medium and pre-sowing inoculation of barley seeds with cyanobacteria. The influence of cyanobacterial treatment on biochemical indices and linear growth of barley plants was assessed. The share of plastid pigments and intensity of the processes of lipid peroxidation were assessed in a spectrophotometric way, standard methods were applied. It was stated t

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Pinevich, A. V., and S. G. Averina. "Taxonomy of cyanobacteria: the era of change." Microbiology 93, no. 5 (2024): 501–18. https://doi.org/10.31857/s0026365624050019.

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Until mid-1970s, cyanobacteria have been interpreted as algae despite they differed from other members of this taxonomic group by the absence of cell nucleus (that is currently considered a character of prokaryotic organization). However, when bacteria were reinterpreted as prokaryotes, blue-green algae became reattributed as cyanobacteria, and bacteriologists began to study their cultured strains with microbiology methods. But since these objects did not obey the provisions of bacteriological code (ICNB), the development of their taxonomy had certain problems, especially regarding nomenclatur

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Dedvisitsakul, Plaipol, Kanchana Watla-iad, Supenya Chittapun, Theppanya Charoenrat, and Chanitchote Piyapittayanun. "Molecular Identification of Some Selected Cyanobacteria and Their Antioxidant Activities." Trends in Sciences 22, no. 2 (2024): 8950. http://dx.doi.org/10.48048/tis.2025.8950.

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Cyanobacteria, photosynthetic prokaryotes, are promising sources of biologically active compounds with antioxidant properties, attracting interest in their potential applications in the food, pharmaceutical, and cosmetic sectors. This present study aimed to use 16S rRNA sequences for identification of some selected strains of cyanobacteria which were previously morphologically identified. The investigation of their antioxidant activities was also performed by ABTS radical scavenging assay, ORAC-fluorescein assay and metal chelating assay in this study. Molecular identification of 8 isolates re

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Kapitulčinova, D., C. S. Cockell, K. R. Hallam, and K. V. Ragnarsdottir. "Effect of cyanobacterial growth on biotite surfaces under laboratory nutrient-limited conditions." Mineralogical Magazine 72, no. 1 (2008): 71–75. http://dx.doi.org/10.1180/minmag.2008.072.1.71.

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AbstractLaboratory experiments with two cyanobacterial strains grown on low-nutrient agar media in the presence of biotite flakes were performed in order to reveal possible mechanisms and rates of cyanobacterial bioweathering. Both cyanobacteria colonized the biotite flakes.Leptolyngbyagrew mostly in the biotite interlayers, whereasHassalliacolonized the sides and the topmost surface of the biotite flakes. After a 3-month incubation, rounded features including cyanobacterium-shaped pits were observed on the biotite surface cleared of the organic material. No such features were observed on flak

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Olsson-Francis, Karen, Rosa de la Torre, and Charles S. Cockell. "Isolation of Novel Extreme-Tolerant Cyanobacteria from a Rock-Dwelling Microbial Community by Using Exposure to Low Earth Orbit." Applied and Environmental Microbiology 76, no. 7 (2010): 2115–21. http://dx.doi.org/10.1128/aem.02547-09.

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ABSTRACT Many cyanobacteria are known to tolerate environmental extremes. Motivated by an interest in selecting cyanobacteria for applications in space, we launched rocks from a limestone cliff in Beer, Devon, United Kingdom, containing an epilithic and endolithic rock-dwelling community of cyanobacteria into low Earth orbit (LEO) at a height of approximately 300 kilometers. The community was exposed for 10 days to isolate cyanobacteria that can survive exposure to the extreme radiation and desiccating conditions associated with space. Culture-independent (16S rRNA) and culture-dependent metho

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Foster, Rachel A., and Jonathan P. Zehr. "Diversity, Genomics, and Distribution of Phytoplankton-Cyanobacterium Single-Cell Symbiotic Associations." Annual Review of Microbiology 73, no. 1 (2019): 435–56. http://dx.doi.org/10.1146/annurev-micro-090817-062650.

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Cyanobacteria are common in symbiotic relationships with diverse multicellular organisms (animals, plants, fungi) in terrestrial environments and with single-celled heterotrophic, mixotrophic, and autotrophic protists in aquatic environments. In the sunlit zones of aquatic environments, diverse cyanobacterial symbioses exist with autotrophic taxa in phytoplankton, including dinoflagellates, diatoms, and haptophytes (prymnesiophytes). Phototrophic unicellular cyanobacteria related to Synechococcus and Prochlorococcus are associated with a number of groups. N2-fixing cyanobacteria are symbiotic

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Watanabe, Tomoaki, and Tokumasa Horiike. "The Evolution of Molybdenum Dependent Nitrogenase in Cyanobacteria." Biology 10, no. 4 (2021): 329. http://dx.doi.org/10.3390/biology10040329.

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Nitrogen fixation plays a crucial role in the nitrogen cycle by helping to convert nitrogen into a form usable by other organisms. Bacteria capable of fixing nitrogen are found in six phyla including Cyanobacteria. Molybdenum dependent nitrogenase (nif) genes are thought to share a single origin as they have homologs in various phyla. However, diazotrophic bacteria have a mosaic distribution within the cyanobacterial lineage. Therefore, the aim of this study was to determine the cause of this mosaic distribution. We identified nif gene operon structures in the genomes of 85 of the 179 cyanobac

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Águila-Carricondo, Pilar, Raúl Román, José Ignacio Marín-Guirao, Yolanda Cantón, and Miguel de Cara. "Native Biocrust Cyanobacteria Strains Showing Antagonism against Three Soilborne Pathogenic Fungi." Pathogens 13, no. 7 (2024): 579. http://dx.doi.org/10.3390/pathogens13070579.

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The biocontrol potential of three native soil cyanobacteria from biological soil crusts (Nostoc commune, Scytonema hyalinum, and Tolypothrix distorta) was tested by means of in vitro mycelial growth inhibition assays for eighteen cyanobacteria-based products against three phytopathogenic soilborne fungi (Phytophthora capsici, Pythium aphanidermatum, and Fusarium oxysporum f. sp. radicis-cucumerinum). Three cyanobacteria-based production factors were considered: (i) cyanobacterium strain, (ii) cyanobacterial culture growth phase, and (iii) different post-harvest treatments: raw cultures, cyanob

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Wilson, Kim M., Mark A. Schembri, Peter D. Baker, and Christopher P. Saint. "Molecular Characterization of the Toxic Cyanobacterium Cylindrospermopsis raciborskii and Design of a Species-Specific PCR." Applied and Environmental Microbiology 66, no. 1 (2000): 332–38. http://dx.doi.org/10.1128/aem.66.1.332-338.2000.

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ABSTRACT Cylindrospermopsis raciborskii is a toxic-bloom-forming cyanobacterium that is commonly found in tropical to subtropical climatic regions worldwide, but it is also recognized as a common component of cyanobacterial communities in temperate climates. Genetic profiles of C. raciborskii were examined in 19 cultured isolates originating from geographically diverse regions of Australia and represented by two distinct morphotypes. A 609-bp region of rpoC1, a DNA-dependent RNA polymerase gene, was amplified by PCR from these isolates with cyanobacterium-specific primers. Sequence analysis re

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Novis, Phil M., Jackie Aislabie, Susan Turner, and Malcolm McLeod. "Chlorophyta, Xanthophyceae and Cyanobacteria in Wright Valley, Antarctica." Antarctic Science 27, no. 5 (2015): 439–54. http://dx.doi.org/10.1017/s0954102015000164.

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AbstractWright Valley, Victoria Land contains numerous aquatic habitats suitable for the growth of algae in summer. Excepting diatoms and lichen phycobionts, algal diversity and distribution in the valley was documented. Using cultures and environmental cloning eight cyanobacterial and 14 eukaryotic species were revealed. The cyanobacterium Microcoleus vaginatus and the chlorophycean Chlorococcum sp. 1 were the most common, both occurring in more than one habitat (ponds, soils or streams). Ponds harboured the most diverse communities. Habitat specialization was rare. Chlamydomonads were not fo

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Raabová, Lenka, Lubomir Kovacik, Josef Elster, and Otakar Strunecký. "Review of the genus Phormidesmis (Cyanobacteria) based on environmental, morphological, and molecular data with description of a new genus Leptodesmis." Phytotaxa 395, no. 1 (2019): 1–16. https://doi.org/10.11646/phytotaxa.395.1.1.

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Raabová, Lenka, Kovacik, Lubomir, Elster, Josef, Strunecký, Otakar (2019): Review of the genus Phormidesmis (Cyanobacteria) based on environmental, morphological, and molecular data with description of a new genus Leptodesmis. Phytotaxa 395 (1): 1-16, DOI: 10.11646/phytotaxa.395.1.1, URL: http://dx.doi.org/10.11646/phytotaxa.395.1.1

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Duchnik, Kornelia, Jan Bialczyk, Ewelina Chrapusta-Srebrny, and Beata Bober. "Inhibition of growth rate and cylindrospermopsin synthesis by Raphidiopsis raciborskii upon exposure to macrophyte Lemna trisulca (L)." Ecotoxicology 30, no. 3 (2021): 470–77. http://dx.doi.org/10.1007/s10646-021-02377-7.

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AbstractImpact of macrophyte Lemna trisulca on the growth rate and synthesis of cylindrospermopsin (CYN) by cyanobacterium Raphidiopsis raciborskii was determined. The presence of L. trisulca inhibited the biomass accumulation of the cyanobacterium by 25% compared to the control during co-cultivation. The simultaneous cultivation of these organisms slightly affected the inhibition of macrophyte growth rate by 5.5% compared to the control. However, no morphological changes of L. trisulca after incubation with cyanobacteria were observed. It was also shown that the long-term (35 days) co-cultiva

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Andeden, Enver Ersoy, Sahlan Ozturk, and Belma Aslim. "Antiproliferative, neurotoxic, genotoxic and mutagenic effects of toxic cyanobacterial extracts." Interdisciplinary Toxicology 11, no. 4 (2018): 267–74. http://dx.doi.org/10.2478/intox-2018-0026.

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Abstract Cyanobacteria are the rich resource of various secondary metabolites including toxins with broad pharmaceutical significance. The aim of this work was to evaluate the antiproliferative, neurotoxic, genotoxic and mutagenic effects of cyanobacterial extracts containing Microcystin-LR (MCLR) in vitro. ELISA analysis results showed that MCLR contents of five cyanobacterial extracts were 2.07 ng/mL, 1.43 ng/mL, 1.41 ng/mL, 1.27 ng/mL, and 1.12 ng/mL for Leptolyngbya sp. SB1, Phormidium sp. SB4, Oscillatoria earlei SB5, Phormidium sp. SB2, Uncultured cyanobacterium, respectively. Phormidium

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Hewelt-Belka, Weronika, Ágata Kot-Wasik, Paula Tamagnini, and Paulo Oliveira. "Untargeted Lipidomics Analysis of the Cyanobacterium Synechocystis sp. PCC 6803: Lipid Composition Variation in Response to Alternative Cultivation Setups and to Gene Deletion." International Journal of Molecular Sciences 21, no. 23 (2020): 8883. http://dx.doi.org/10.3390/ijms21238883.

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Cyanobacteria play an important role in several ecological environments, and they are widely accepted to be the ancestors of chloroplasts in modern plants and green algae. Cyanobacteria have become attractive models for metabolic engineering, with the goal of exploring them as microbial cell factories. However, the study of cyanobacterial lipids’ composition and variation, and the assessment of the lipids’ functional and structural roles have been largely overlooked. Here, we aimed at expanding the cyanobacterial lipidomic analytical pipeline by using an untargeted lipidomics approach. Thus, t

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Álvarez, Consolación, José A. Navarro, Fernando P. Molina-Heredia, and Vicente Mariscal. "Endophytic Colonization of Rice (Oryza sativa L.) by the Symbiotic Strain Nostoc punctiforme PCC 73102." Molecular Plant-Microbe Interactions® 33, no. 8 (2020): 1040–45. http://dx.doi.org/10.1094/mpmi-01-20-0015-sc.

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Cyanobacteria are phototrophic microorganisms able to establish nitrogen-fixing symbiotic associations with representatives of all four of the major phylogenetic divisions of terrestrial plants. Despite increasing knowledge on the beneficial effects of cyanobacteria in rice fields, the information about the interaction between these microorganisms and rice at the molecular and structural levels is still limited. We have used the model nitrogen-fixing cyanobacterium Nostoc punctiforme to promote a long-term stable endophytic association with rice. Inoculation with this strain of hydroponic cult

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Stuart, Rhona K., Eric R. A. Pederson, Philip D. Weyman, Peter K. Weber, Ulla Rassmussen, and Christopher L. Dupont. "Bidirectional C and N transfer and a potential role for sulfur in an epiphytic diazotrophic mutualism." ISME Journal 14, no. 12 (2020): 3068–78. http://dx.doi.org/10.1038/s41396-020-00738-4.

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Abstract In nitrogen-limited boreal forests, associations between feathermoss and diazotrophic cyanobacteria control nitrogen inputs and thus carbon cycling, but little is known about the molecular regulators required for initiation and maintenance of these associations. Specifically, a benefit to the cyanobacteria is not known, challenging whether the association is a nutritional mutualism. Targeted mutagenesis of the cyanobacterial alkane sulfonate monooxygenase results in an inability to colonize feathermosses by the cyanobacterium Nostoc punctiforme, suggesting a role for organic sulfur in

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Jackson, Owen, Oliver Taylor, David G. Adams, and J. Paul Knox. "Arabinogalactan Proteins Occur in the Free-Living Cyanobacterium Genus Nostoc and in Plant–Nostoc Symbioses." Molecular Plant-Microbe Interactions® 25, no. 10 (2012): 1338–49. http://dx.doi.org/10.1094/mpmi-04-12-0095-r.

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Arabinogalactan proteins (AGP) are a diverse family of proteoglycans associated with the cell surfaces of plants. AGP have been implicated in a wide variety of plant cell processes, including signaling in symbioses. This study investigates the existence of putative AGP in free-living cyanobacterial cultures of the nitrogen-fixing, filamentous cyanobacteria Nostoc punctiforme and Nostoc sp. strain LBG1 and at the symbiotic interface in the symbioses between Nostoc spp. and two host plants, the angiosperm Gunnera manicata (in which the cyanobacterium is intracellular) and the liverwort Blasia pu

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Gehringer, Michelle M., Jasper J. L. Pengelly, William S. Cuddy, Claus Fieker, Paul I. Forster, and Brett A. Neilan. "Host Selection of Symbiotic Cyanobacteria in 31 Species of the Australian Cycad Genus: Macrozamia (Zamiaceae)." Molecular Plant-Microbe Interactions® 23, no. 6 (2010): 811–22. http://dx.doi.org/10.1094/mpmi-23-6-0811.

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The nitrogen-fixing cyanobacterium Nostoc is a commonly occurring terrestrial and aquatic cyanobacterium often found in symbiosis with a wide range of plant, algal, and fungal species. We investigated the diversity of cyanobacterial species occurring within the coralloid roots of different Macrozamia cycad species at diverse locations throughout Australia. In all, 74 coralloid root samples were processed and 56 endosymbiotic cyanobacteria were cultured. DNA was isolated from unialgal cultures and a segment of the 16S rRNA gene was amplified and sequenced. Microscopic analysis was performed on

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Naidanova, Y. A., E. G. Sorokovikova, I. V. Tikhonova, I. V. Khanaev, and O. I. Belykh. "Investigation of Tychonema sp. tropism to the sponge body in the experiment of co-cultivation of cyanobacteria with primmorphs." Limnology and Freshwater Biology, no. 4 (2024): 1020–25. http://dx.doi.org/10.31951/2658-3518-2024-a-4-1020.

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Mass death of endemic sponges accompanied by the growth of cyanobacterial biofilms on their bodies has been registered in recent years in Lake Baikal. These biofilms are formed by the cyanobacterium Tychonema sp., which grows on various types of substrates in the littoral zone and is often found on sponges. The aim of the study was to conduct an experiment on co-cultivation of Tychonema sp. with Baikalospongia sp. primomorphs to test the hypothesis about the tropism of Baikal cyanobacterium to the body of sponges. In the experiment, gradual fouling of the primmorphs with cyanobacterium filamen

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Kirkwood, A. E., C. Nalewajko, and R. R. Fulthorpe. "The impacts of cyanobacteria on pulp-and-paper wastewater toxicity and biodegradation of wastewater contaminants." Canadian Journal of Microbiology 51, no. 7 (2005): 531–40. http://dx.doi.org/10.1139/w05-030.

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This study investigated the effects of cyanobacteria from pulp-and-paper waste-treatment systems on biological toxicity removal and biodegradation of certain wastewater contaminants. In field and batch studies, using the Microtox®assay, cyanobacterial biomass and final wastewater toxicity were significantly correlated. In softwood-based wastewater, a decrease in toxicity was negatively correlated with cyanobacterial biomass, but the correlation was positive in hardwood-based wastewater. In the softwood-based wastewater, toxicity remained higher in the light than it was in the dark, whereas in

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Toledo, Gerardo, Yoav Bashan, and Al Soeldner. "In vitro colonization and increase in nitrogen fixation of seedling roots of black mangrove inoculated by a filamentous cyanobacteria." Canadian Journal of Microbiology 41, no. 11 (1995): 1012–20. http://dx.doi.org/10.1139/m95-140.

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An isolate of the filamentous cyanobacterium Microcoleus sp. was obtained from black mangrove aerial root (pneumatophore) and inoculated onto young mangrove seedlings to evaluate N2-fixation and root-colonization capacities of the bacterium under in vitro conditions in closed-system experiments. N2 fixation (acetylene reduction) gradually increased with time and reached its peak 5 days after inoculation. Later, it decreased sharply. The level of N2 fixation in the presence of the plant was significantly higher than the amount of nitrogen fixed by a similar quantity of cyanobacteria on a N-free

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Apdila, Egi Tritya, Shukumi Inoue, Mie Shimojima, and Koichiro Awai. "Complete Replacement of the Galactolipid Biosynthesis Pathway with a Plant-Type Pathway in the Cyanobacterium Synechococcus elongatus PCC 7942." Plant and Cell Physiology 61, no. 9 (2020): 1661–68. http://dx.doi.org/10.1093/pcp/pcaa090.

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Abstract Monogalactosyldiacylglycerol (MGDG) and digalactosyldiacylglycerol (DGDG) are the major components of thylakoid membranes and well-conserved from cyanobacteria to chloroplasts. However, cyanobacteria and chloroplasts synthesize these galactolipids using different pathways and enzymes, but they are believed to share a common ancestor. This fact implies that there was a replacement of the cyanobacterial galactolipid biosynthesis pathway during the evolution of a chloroplast. In this study, we first replaced the cyanobacterial MGDG biosynthesis pathway in a model cyanobacterium, Synechoc

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Manpreet, Manpreet, Lovepreet Kaur, Shveta Shveta, and Jasvirinder Singh Khattar. "Exalted Level of Nitrogen Metabolism In the Presence of Sodium Sulphide in Nostocellipososporum under Thermal Stress." Acta Biology Forum 3, no. 3 (2024): 1–8. https://doi.org/10.51470/abf.2024.3.3.01.

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It is well-recognized that thermophilic cyanobacteria flourish in sulfur-rich thermal springs. Mesophilic cyanobacteria are available at temperatures ranging from 28 to 37°C. This study sought to determine if mesophilic cyanobacteria can also grow at elevated temperatures in the presence of sulphide, and if yes ,then what role sulfide would have in reducing high temperature stress in mesophilic cyanobacterial organisms. The prolifecation of Nostoc ellipososporum, a mesophilic cyanobacterium, was examined at its optimal temperature, both in the presence and absence of sulphide under thermal str

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Harwood, Thomas V., Esthefani G. Zuniga, HoJun Kweon, and Douglas D. Risser. "The cyanobacterial taxis protein HmpF regulates type IV pilus activity in response to light." Proceedings of the National Academy of Sciences 118, no. 12 (2021): e2023988118. http://dx.doi.org/10.1073/pnas.2023988118.

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Motility is ubiquitous in prokaryotic organisms including the photosynthetic cyanobacteria where surface motility powered by type 4 pili (T4P) is common and facilitates phototaxis to seek out favorable light environments. In cyanobacteria, chemotaxis-like systems are known to regulate motility and phototaxis. The characterized phototaxis systems rely on methyl-accepting chemotaxis proteins containing bilin-binding GAF domains capable of directly sensing light, and the mechanism by which they regulate the T4P is largely undefined. In this study we demonstrate that cyanobacteria possess a second

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