Academic literature on the topic 'Haloquadratum'

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Journal articles on the topic "Haloquadratum"

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Moller, Abraham G., and Chun Liang. "Determining virus-host interactions and glycerol metabolism profiles in geographically diverse solar salterns with metagenomics." PeerJ 5 (January 10, 2017): e2844. http://dx.doi.org/10.7717/peerj.2844.

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Solar salterns are excellent model ecosystems for studying virus-microbial interactions because of their low microbial diversity, environmental stability, and high viral density. By using the power of CRISPR spacers to link viruses to their prokaryotic hosts, we explored virus-host interactions in geographically diverse salterns. Using taxonomic profiling, we identified hosts such as archaeal Haloquadratum, Halorubrum, and Haloarcula and bacterial Salinibacter, and we found that community composition related to not only salinity but also local environmental dynamics. Characterizing glycerol me
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Akpolat, Can, Ana Beatriz Fernández, Pinar Caglayan, Baris Calli, Meral Birbir, and Antonio Ventosa. "Prokaryotic Communities in the Thalassohaline Tuz Lake, Deep Zone, and Kayacik, Kaldirim and Yavsan Salterns (Turkey) Assessed by 16S rRNA Amplicon Sequencing." Microorganisms 9, no. 7 (2021): 1525. http://dx.doi.org/10.3390/microorganisms9071525.

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Prokaryotic communities and physico-chemical characteristics of 30 brine samples from the thalassohaline Tuz Lake (Salt Lake), Deep Zone, Kayacik, Kaldirim, and Yavsan salterns (Turkey) were analyzed using 16S rRNA amplicon sequencing and standard methods, respectively. Archaea (98.41% of reads) was found to dominate in these habitats in contrast to the domain Bacteria (1.38% of reads). Representatives of the phylum Euryarchaeota were detected as the most predominant, while 59.48% and 1.32% of reads, respectively, were assigned to 18 archaeal genera, 19 bacterial genera, 10 archaeal genera, an
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Dyall-Smith, Mike L., Friedhelm Pfeiffer, Kathrin Klee, et al. "Haloquadratum walsbyi : Limited Diversity in a Global Pond." PLoS ONE 6, no. 6 (2011): e20968. http://dx.doi.org/10.1371/journal.pone.0020968.

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Elevi Bardavid, Rahel, and Aharon Oren. "Dihydroxyacetone metabolism in Salinibacter ruber and in Haloquadratum walsbyi." Extremophiles 12, no. 1 (2007): 125–31. http://dx.doi.org/10.1007/s00792-007-0114-x.

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Burns, David G., Peter H. Janssen, Takashi Itoh, et al. "Haloquadratum walsbyi gen. nov., sp. nov., the square haloarchaeon of Walsby, isolated from saltern crystallizers in Australia and Spain." International Journal of Systematic and Evolutionary Microbiology 57, no. 2 (2007): 387–92. http://dx.doi.org/10.1099/ijs.0.64690-0.

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Strains C23T and HBSQ001 were isolated from solar salterns and are novel square-shaped, aerobic, extremely halophilic members of the domain Archaea and family Halobacteriaceae. Cells stained Gram-negative and grew optimally in media containing 18 % salts at around neutral pH. Mg2+ is not required. The DNA G+C content of both isolates was 46.9 mol% and DNA–DNA cross-hybridization showed a relatedness of 80 %. Their 16S rRNA gene sequences showed only 2 nucleotide differences (99.9 % identity) and phylogenetic tree reconstructions with other recognized members of the Halobacteriaceae indicated t
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Bolhuis, Henk, Ana Belén Martín-Cuadrado, Riccardo Rosselli, Lejla Pašić, and Francisco Rodriguez-Valera. "Transcriptome analysis of Haloquadratum walsbyi: vanity is but the surface." BMC Genomics 18, no. 1 (2017): 510. https://doi.org/10.1186/s12864-017-3892-2.

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<strong>Background: </strong> <i>Haloquadratum walsbyi</i> dominates saturated thalassic lakes worldwide where they can constitute up to 80-90% of the total prokaryotic community. Despite the abundance of the enigmatic square-flattened cells, only 7 isolates are currently known with 2 genomes fully sequenced and annotated due to difficulties to grow them under laboratory conditions. We have performed a transcriptomic analysis of one of these isolates, the Spanish strain HBSQ001 in order to investigate gene transcription under light and dark conditions.<strong>Results: </strong>Despite a potent
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Dyall-Smith, Mike, and Friedhelm Pfeiffer. "Global Distribution and Diversity of Haloarchaeal pL6-Family Plasmids." Genes 15, no. 9 (2024): 1123. http://dx.doi.org/10.3390/genes15091123.

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Australian isolates of Haloquadratum walsbyi, a square-shaped haloarchaeon, often harbor small cryptic plasmids of the pL6-family, approximately 6 kb in size, and five examples have been previously described. These plasmids exhibit a highly conserved gene arrangement and encode replicases similar to those of betapleolipoviruses. To assess their global distribution and recover more examples for analysis, fifteen additional plasmids were reconstructed from the metagenomes of seven hypersaline sites across four countries: Argentina, Australia, Puerto Rico, and Spain. Including the five previously
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Sublimi Saponetti, Matilde, Fabrizio Bobba, Grazia Salerno, Alessandro Scarfato, Angela Corcelli, and Annamaria Cucolo. "Morphological and Structural Aspects of the Extremely Halophilic Archaeon Haloquadratum walsbyi." PLoS ONE 6, no. 4 (2011): e18653. http://dx.doi.org/10.1371/journal.pone.0018653.

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Yalala, Vaishnavi R., Abigeal K. Lynch, and Kenneth V. Mills. "Conditional Alternative Protein Splicing Promoted by Inteins from Haloquadratum walsbyi." Biochemistry 61, no. 4 (2022): 294–302. http://dx.doi.org/10.1021/acs.biochem.1c00788.

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Yalala, Vaishnavi, Angel Chavez, Abigeal K. Lynch, and Kenneth V. Mills. "Protein splicing and tryptophan fluorescence of salt‐dependent inteins from Haloquadratum walsbyi." FASEB Journal 34, S1 (2020): 1. http://dx.doi.org/10.1096/fasebj.2020.34.s1.04643.

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Dissertations / Theses on the topic "Haloquadratum"

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Liu, Hung-Yi, and 劉鴻毅. "Characterization of two predicted bacteriorhodopsins in Haloquadratum walsbyi." Thesis, 2012. http://ndltd.ncl.edu.tw/handle/31208311583332592637.

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碩士<br>國立臺灣大學<br>生化科技學系<br>100<br>Studies in microbial rhodopsins have been focused on those found in Halobacterium salinarum since 1973. In the past, the studies in halophilic archaea identified four kinds of retinal-binding proteins and they use light as energy source to mediate different physiological functions. Among them, two main functions are identified: light-driven ion transporters and sensory receptor for phototaxis responses. Bacteriorhodopsin belong to ion-transporter type and is the first and best-understood archaeal rhodopsin which can pump protons out of cell upon light illuminat
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Chen, Xiao-Ru, and 陳筱儒. "Investigation on light-driven ion translocation capability of halorhodopsin from Haloquadratum walsbyi." Thesis, 2015. http://ndltd.ncl.edu.tw/handle/76484591311286333826.

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碩士<br>國立臺灣大學<br>生化科技學系<br>103<br>Microbial rhodopsins response to light and function as light-driven ion transportation or light sensor. Halorhodopsin (HR), one of these microbial rhodopsins, is known to be a light-driven inward chloride pump for osmolarity maintenance at least in haloarchaea. During inward transportation, chloride ions are proposed to passively carry protons across the membrane. In this study, we used a proton sensitive assay, photocurrent measurement, to measure light-driven proton releasing activity. Here we found halorhodopsin in Halobacterium salinarum (HsHR) and Haloarcu
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Ko, Ling-Ning, and 柯齡甯. "Probing the Mg2+-dependent optical property changes of the functionally unknown Middle Rhodopsin from Haloquadratum walsbyi, HwMR." Thesis, 2018. http://ndltd.ncl.edu.tw/handle/8jxm3n.

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碩士<br>國立臺灣大學<br>生化科技學系<br>106<br>In haloarchaeas, microbial rhodopsins (M-Rho) are vital proteins for solar energy capture, as well as seeking for optimal living environment. Based on different physiological functions and mechanisms, two types of M-Rho have been found: light-driven ion transporters (bacteriorhodopsin, BR and halorhodopsin, HR) and phototaxis receptors (sensory rhodopsin, SR). Haloquadratum walsbyi (Hw) survives a 2.0 M MgCl2 condition and three M-Rho were identified in its genome, namely light-driven ion transporters HwBR, HwHR, and the functionally unknown HwMR. Previous stud
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Chang, Yung-Ning, and 張詠寧. "Study on Two New Halorhodopsin Proteins from Haloarcula marismortui and Haloquadratum walsbyi Unveiled the Highly Conserved Features Lack in Other Ion-Translocating Microbial Rhodopsins." Thesis, 2010. http://ndltd.ncl.edu.tw/handle/58338365062964691847.

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碩士<br>臺灣大學<br>微生物與生化學研究所<br>98<br>Light serves as a crucial environmental signal to all organisms on the Earth and closely involves in physiological signaling and regulations. For halophiles widely found in NaCl-saturated ponds, most of them encode archaeal rhodopsins to harvest different wavelengths of light for either ion transportation or as sensory mediator. One of these rhodopsins, halorhodopsin (HR), was found to be an inward light-driven chloride ion transporter which ubiquitously exists in halophilic archaea. HR contains retinal as chromophore and utilizes 576 nm of light to transport
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