Relevant bibliographies by topics / Algal-bacterial symbiosis

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Academic literature on the topic 'Algal-bacterial symbiosis'

Author: Grafiati
Published: 4 June 2021
Last updated: 11 February 2022

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Journal articles on the topic "Algal-bacterial symbiosis"

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Mu, Ruimin, Qingyang Guo, Feng Qi, Yantian Jia, Qianya Meng, and Gejiang Yu. "Advances in Studies on Nitrogen and Phosphorus Removal by Microalgal-Bacterial Consortia." E3S Web of Conferences 293 (2021): 01006. http://dx.doi.org/10.1051/e3sconf/202129301006.

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With the development of life and industry, the nutrients in sewage increased gradually. The emerging symbiotic system of algal and bacteria has remarkable effect in removing nutrients such as nitrogen and phosphorus. In this paper, the influence of nitrogen and phosphorus on bacteria-algal consortia and the absorption mechanism of nitrogen and phosphorus by the interaction of bacteria-algal consortia were analyzed, and a variety of methods for studying bacteria-algal consortia were summarized, mainly using isotope tracer technology to study the research results of bacteria and algae absorbing nitrogen and phosphorus in water. This method is of great significance for analyzing the mechanism of the treatment of nitrogen and phosphorus by the bacterial-algal symbiosis system from the microscopic point of view.
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Qi, Yun, Xingyu Chen, Zhan Hu, Chunfeng Song, and Yuanlu Cui. "Bibliometric Analysis of Algal-Bacterial Symbiosis in Wastewater Treatment." International Journal of Environmental Research and Public Health 16, no. 6 (March 26, 2019): 1077. http://dx.doi.org/10.3390/ijerph16061077.

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In recent years, the algae-bacteria symbiotic system has played a significant role in the sustainable development of wastewater treatment. With the continuous expansion of research outputs, publications related to wastewater treatment via algal-bacterial consortia appear to be on the rise. Based on SCI-EXPANDED database, this study investigated the research activities and tendencies of algae-bacteria symbiotic wastewater treatment technology by bibliometric method from 1998 to 2017. The results indicated that environmental sciences and ecology was the most productive subject categories, followed by engineering. Bioresource Technology was the most prominent journal in this field with considerable academic influence. China (146), USA (139) and Spain (76) had the largest amount of publications. Among them, USA was in a leading position in international cooperation, with the highest h-index (67) in 79 countries/territories. The cooperation between China and USA was the closest. The cooperative publishing rate of the Chinese Academy of Sciences was 83.33%, but most of them were in cooperation with domestic institutions, while international cooperation was relatively limited. Methane production, biofuel production, and extracellular polymeric substance were future focal frontiers of research, and this field had gradually become a multi-perspective and inter-disciplinary approach combining biological, environmental and energy technologies.
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Seyedsayamdost, Mohammad R., Gavin Carr, Roberto Kolter, and Jon Clardy. "Roseobacticides: Small Molecule Modulators of an Algal-Bacterial Symbiosis." Journal of the American Chemical Society 133, no. 45 (November 16, 2011): 18343–49. http://dx.doi.org/10.1021/ja207172s.

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Ho, Yuh-Shan. "Comment to: Qi, Yi, et al. “Bibliometric Analysis of Algal-Bacterial Symbiosis in Wastewater Treatment”, Int. J. Environ. Res. Public Health 2019, 16, 1077." International Journal of Environmental Research and Public Health 16, no. 11 (June 7, 2019): 2034. http://dx.doi.org/10.3390/ijerph16112034.

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Vallet, Marine, Filip Kaftan, Veit Grabe, Fatemeh Ghaderiardakani, Simona Fenizia, Aleš Svatoš, Georg Pohnert, and Thomas Wichard. "A new glance at the chemosphere of macroalgal–bacterial interactions: In situ profiling of metabolites in symbiosis by mass spectrometry." Beilstein Journal of Organic Chemistry 17 (May 19, 2021): 1313–22. http://dx.doi.org/10.3762/bjoc.17.91.

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Symbiosis is a dominant form of life that has been observed numerous times in marine ecosystems. For example, macroalgae coexist with bacteria that produce factors that promote algal growth and morphogenesis. The green macroalga Ulva mutabilis (Chlorophyta) develops into a callus-like phenotype in the absence of its essential bacterial symbionts Roseovarius sp. MS2 and Maribacter sp. MS6. Spatially resolved studies are required to understand symbiont interactions at the microscale level. Therefore, we used mass spectrometry profiling and imaging techniques with high spatial resolution and sensitivity to gain a new perspective on the mutualistic interactions between bacteria and macroalgae. Using atmospheric pressure scanning microprobe matrix-assisted laser desorption/ionisation high-resolution mass spectrometry (AP-SMALDI-HRMS), low-molecular-weight polar compounds were identified by comparative metabolomics in the chemosphere of Ulva. Choline (2-hydroxy-N,N,N-trimethylethan-1-aminium) was only determined in the alga grown under axenic conditions, whereas ectoine (1,4,5,6-tetrahydro-2-methyl-4-pyrimidinecarboxylic acid) was found in bacterial presence. Ectoine was used as a metabolic marker for localisation studies of Roseovarius sp. within the tripartite community because it was produced exclusively by these bacteria. By combining confocal laser scanning microscopy (cLSM) and AP-SMALDI-HRMS, we proved that Roseovarius sp. MS2 settled mainly in the rhizoidal zone (holdfast) of U. mutabilis. Our findings provide the fundament to decipher bacterial symbioses with multicellular hosts in aquatic ecosystems in an ecologically relevant context. As a versatile tool for microbiome research, the combined AP-SMALDI and cLSM imaging analysis with a resolution to level of a single bacterial cell can be easily applied to other microbial consortia and their hosts. The novelty of this contribution is the use of an in situ setup designed to avoid all types of external contamination and interferences while resolving spatial distributions of metabolites and identifying specific symbiotic bacteria.
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Greshake Tzovaras, Bastian, Francisca H. I. D. Segers, Anne Bicker, Francesco Dal Grande, Jürgen Otte, Seyed Yahya Anvar, Thomas Hankeln, Imke Schmitt, and Ingo Ebersberger. "What Is in Umbilicaria pustulata? A Metagenomic Approach to Reconstruct the Holo-Genome of a Lichen." Genome Biology and Evolution 12, no. 4 (March 12, 2020): 309–24. http://dx.doi.org/10.1093/gbe/evaa049.

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Abstract Lichens are valuable models in symbiosis research and promising sources of biosynthetic genes for biotechnological applications. Most lichenized fungi grow slowly, resist aposymbiotic cultivation, and are poor candidates for experimentation. Obtaining contiguous, high-quality genomes for such symbiotic communities is technically challenging. Here, we present the first assembly of a lichen holo-genome from metagenomic whole-genome shotgun data comprising both PacBio long reads and Illumina short reads. The nuclear genomes of the two primary components of the lichen symbiosis—the fungus Umbilicaria pustulata (33 Mb) and the green alga Trebouxia sp. (53 Mb)—were assembled at contiguities comparable to single-species assemblies. The analysis of the read coverage pattern revealed a relative abundance of fungal to algal nuclei of ∼20:1. Gap-free, circular sequences for all organellar genomes were obtained. The bacterial community is dominated by Acidobacteriaceae and encompasses strains closely related to bacteria isolated from other lichens. Gene set analyses showed no evidence of horizontal gene transfer from algae or bacteria into the fungal genome. Our data suggest a lineage-specific loss of a putative gibberellin-20-oxidase in the fungus, a gene fusion in the fungal mitochondrion, and a relocation of an algal chloroplast gene to the algal nucleus. Major technical obstacles during reconstruction of the holo-genome were coverage differences among individual genomes surpassing three orders of magnitude. Moreover, we show that GC-rich inverted repeats paired with nonrandom sequencing error in PacBio data can result in missing gene predictions. This likely poses a general problem for genome assemblies based on long reads.
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Wilson, Maxwell Z., Rurun Wang, Zemer Gitai, and Mohammad R. Seyedsayamdost. "Mode of action and resistance studies unveil new roles for tropodithietic acid as an anticancer agent and the γ-glutamyl cycle as a proton sink." Proceedings of the National Academy of Sciences 113, no. 6 (January 22, 2016): 1630–35. http://dx.doi.org/10.1073/pnas.1518034113.

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While we have come to appreciate the architectural complexity of microbially synthesized secondary metabolites, far less attention has been paid to linking their structural features with possible modes of action. This is certainly the case with tropodithietic acid (TDA), a broad-spectrum antibiotic generated by marine bacteria that engage in dynamic symbioses with microscopic algae. TDA promotes algal health by killing unwanted marine pathogens; however, its mode of action (MoA) and significance for the survival of an algal–bacterial miniecosystem remains unknown. Using cytological profiling, we herein determine the MoA of TDA and surprisingly find that it acts by a mechanism similar to polyether antibiotics, which are structurally highly divergent. We show that like polyether drugs, TDA collapses the proton motive force by a proton antiport mechanism, in which extracellular protons are exchanged for cytoplasmic cations. The α-carboxy-tropone substructure is ideal for this purpose as the proton can be carried on the carboxyl group, whereas the basicity of the tropylium ion facilitates cation export. Based on similarities to polyether anticancer agents we have further examined TDA’s cytotoxicity and find it to exhibit potent, broad-spectrum anticancer activities. These results highlight the power of MoA-profiling technologies in repurposing old drugs for new targets. In addition, we identify an operon that confers TDA resistance to the producing marine bacteria. Bioinformatic and biochemical analyses of these genes lead to a previously unknown metabolic link between TDA/acid resistance and the γ-glutamyl cycle. The implications of this resistance mechanism in the context of the algal-bacterial symbiosis are discussed.
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Frommlet, Jörg C., Maria L. Sousa, Artur Alves, Sandra I. Vieira, David J. Suggett, and João Serôdio. "Coral symbiotic algae calcifyex hospitein partnership with bacteria." Proceedings of the National Academy of Sciences 112, no. 19 (April 27, 2015): 6158–63. http://dx.doi.org/10.1073/pnas.1420991112.

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Dinoflagellates of the genusSymbiodiniumare commonly recognized as invertebrate endosymbionts that are of central importance for the functioning of coral reef ecosystems. However, the endosymbiotic phase withinSymbiodiniumlife history is inherently tied to a more cryptic free-living (ex hospite) phase that remains largely unexplored. Here we show that free-livingSymbiodiniumspp. in culture commonly form calcifying bacterial–algal communities that produce aragonitic spherulites and encase the dinoflagellates as endolithic cells. This process is driven bySymbiodiniumphotosynthesis but occurs only in partnership with bacteria. Our findings not only place dinoflagellates on the map of microbial–algal organomineralization processes but also point toward an endolithic phase in theSymbiodiniumlife history, a phenomenon that may provide new perspectives on the biology and ecology ofSymbiodiniumspp. and the evolutionary history of the coral–dinoflagellate symbiosis.
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Lin, Chao, Peng Cao, Xiaolin Xu, and Bangce Ye. "Algal-Bacterial Symbiosis System Treating High-Load Printing and Dyeing Wastewater in Continuous-Flow Reactors under Natural Light." Water 11, no. 3 (March 5, 2019): 469. http://dx.doi.org/10.3390/w11030469.

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This study investigated the symbiotic structure relationship between mixed algae andactivated sludge while treating high-load printing and dyeing wastewater under natural light. Theeffects of hydraulic retention time (HRT) (12 h, 16 h and 20 h) and aeration rate (0.1–0.15, 0.4–0.5and 0.7–0.8 L/min) on algal–bacterial symbiosis (ABS) and conventional activated sludge (CAS)systems. Experimental results showed that the ABS system exhibited the best removal performancefor chemical oxygen demand (COD), ammonia nitrogen (NH4+-N) and total phosphorus (TP),which was increased by 12.5%, 23.1% and 10.5%, respectively, and reduced colour 80 timescompared with the printing and dyeing wastewater treatment plant. Algae growth could bepromoted under lower dissolved oxygen (DO), and the addition of algae could provide more DO tothe ABS system. The particle size distribution of sludge in the ABS system was stable, whichguaranteed a stable treatment effect. In addition, the COD and colour could be further degradedunder the conditions of no external carbon source and longer HRT. It is expected that the presentstudy will provide a foundation for the practical application of the ABS system, and new insightsfor the treatment of printing and dyeing wastewater.
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Van Den Hende, S., H. Vervaeren, and N. Boon. "Industrial symbiosis: C, N and P scavenging from sewage and flue gas with algal bacterial flocs." Journal of Biotechnology 150 (November 2010): 278. http://dx.doi.org/10.1016/j.jbiotec.2010.09.200.

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Dissertations / Theses on the topic "Algal-bacterial symbiosis"

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Medina, Rodríguez Luisa Marcela. "Floc formation in wastewater treatment systems using algal bacterial symbiosis /." Hamburg : Techn. Univ. Hamburg-Harburg, 2006. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=015584416&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.

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Cooper, Matthew. "Investigating physiological and genetic aspects of algal-bacterial symbiosis for B-vitamins." Thesis, University of Cambridge, 2015. https://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.709184.

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"Microalgal Biofilms for Treatment of Domestic Wastewater and Resource Recovery." Master's thesis, 2016. http://hdl.handle.net/2286/R.I.38745.

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abstract: The application of microalgal biofilms in wastewater treatment has great advantages such as abolishing the need for energy intensive aerators and recovering nutrients as energy, thus reducing the energy requirement of wastewater treatment several-fold. A 162 cm2 algal biofilm reactor with good wastewater treatment performance and a regular harvesting procedure was studied at lab scale to gain an understanding of effectual parameters such as hydraulic retention time (HRT; 2.6 and 1.3 hrs), liquid level (LL; 0.5 and 1.0 cm), and solids retention time (SRT; 3 and 1.5 wks). A revised synthetic wastewater “Syntho 3.7” was used as a surrogate of domestic primary effluent for nutrient concentration consistency in the feed lines. In the base case (2.6 hr HRT, 0.5 cm LL, and 3 wk SRT), percent removals of 69 ± 2 for total nitrogen (TN), 54 ± 21 for total phosphorous (TP), and 60 ± 7 for chemical oxygen demand (COD) were achieved and 4.0 ± 1.6 g/m2/d dry biomass was produced. A diffusion limitation was encountered when increasing the liquid level, while the potential to further decrease the HRT remains. Nonlinear growth kinetics was observed in comparing SRT variations, and promoting autotrophic growth seems possible. Future work will look towards producing a mathematical model and further testing the aptness of this system for large-scale implementation.
Dissertation/Thesis
Masters Thesis Chemical Engineering 2016
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Book chapters on the topic "Algal-bacterial symbiosis"

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Johnson, Inigo, Sudeeptha Girijan, Binay Kumar Tripathy, Mohammad Abubakar Sithik Ali, and Mathava Kumar. "Algal–bacterial symbiosis and its application in wastewater treatment." In Emerging Technologies in Environmental Bioremediation, 341–72. Elsevier, 2020. http://dx.doi.org/10.1016/b978-0-12-819860-5.00015-8.

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Mahesh, R., Suraj K. Panda, Meenakshi Das, P. R. Yashavanth, Sahil Dhull, Bharat Bhushan Negi, Parul Jakhwal, and Soumen K. Maiti. "Advances in Biotechnological Tools for Bioremediation of Wastewater Using Bacterial–Algal Symbiotic System." In Wastewater Treatment, 385–411. Elsevier, 2021. http://dx.doi.org/10.1016/b978-0-12-821881-5.00019-2.

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