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Cas4 Facilitates PAM-Compatible Spacer Selection during CRISPR Adaptation.

Kieper SN, Almendros C, Behler J, McKenzie RE, Nobrega FL, Haagsma AC, Vink JNA, Hess WR, Brouns SJJ.

Cell Rep. 2018 Mar 27;22(13):3377-3384. doi: 10.1016/j.celrep.2018.02.103.


Comparative Genomics of the Baltic Sea Toxic Cyanobacteria Nodularia spumigena UHCC 0039 and Its Response to Varying Salinity.

Teikari JE, Hou S, Wahlsten M, Hess WR, Sivonen K.

Front Microbiol. 2018 Mar 8;9:356. doi: 10.3389/fmicb.2018.00356. eCollection 2018.


Biochemical analysis of the Cas6-1 RNA endonuclease associated with the subtype I-D CRISPR-Cas system in Synechocystis sp. PCC 6803.

Jesser R, Behler J, Benda C, Reimann V, Hess WR.

RNA Biol. 2018 Mar 26:1-11. doi: 10.1080/15476286.2018.1447742. [Epub ahead of print]


The iron-stress activated RNA 1 (IsaR1) coordinates osmotic acclimation and iron starvation responses in the cyanobacterium Synechocystis sp. PCC 6803.

Rübsam H, Kirsch F, Reimann V, Erban A, Kopka J, Hagemann M, Hess WR, Klähn S.

Environ Microbiol. 2018 Feb 22. doi: 10.1111/1462-2920.14079. [Epub ahead of print]


Strains of the toxic and bloom-forming Nodularia spumigena (cyanobacteria) can degrade methylphosphonate and release methane.

Teikari JE, Fewer DP, Shrestha R, Hou S, Leikoski N, Mäkelä M, Simojoki A, Hess WR, Sivonen K.

ISME J. 2018 Feb 14. doi: 10.1038/s41396-018-0056-6. [Epub ahead of print]


Identification of the DNA methyltransferases establishing the methylome of the cyanobacterium Synechocystis sp. PCC 6803.

Hagemann M, Gärtner K, Scharnagl M, Bolay P, Lott SC, Fuss J, Huettel B, Reinhardt R, Klähn S, Hess WR.

DNA Res. 2018 Feb 12. doi: 10.1093/dnares/dsy006. [Epub ahead of print]


The host-encoded RNase E endonuclease as the crRNA maturation enzyme in a CRISPR-Cas subtype III-Bv system.

Behler J, Sharma K, Reimann V, Wilde A, Urlaub H, Hess WR.

Nat Microbiol. 2018 Mar;3(3):367-377. doi: 10.1038/s41564-017-0103-5. Epub 2018 Feb 5.


Benefit from decline: the primary transcriptome of Alteromonas macleodii str. Te101 during Trichodesmium demise.

Hou S, López-Pérez M, Pfreundt U, Belkin N, Stüber K, Huettel B, Reinhardt R, Berman-Frank I, Rodriguez-Valera F, Hess WR.

ISME J. 2018 Apr;12(4):981-996. doi: 10.1038/s41396-017-0034-4. Epub 2018 Jan 15.


OxyS small RNA induces cell cycle arrest to allow DNA damage repair.

Barshishat S, Elgrably-Weiss M, Edelstein J, Georg J, Govindarajan S, Haviv M, Wright PR, Hess WR, Altuvia S.

EMBO J. 2018 Feb 1;37(3):413-426. doi: 10.15252/embj.201797651. Epub 2017 Dec 13.


6S RNA plays a role in recovery from nitrogen depletion in Synechocystis sp. PCC 6803.

Heilmann B, Hakkila K, Georg J, Tyystjärvi T, Hess WR, Axmann IM, Dienst D.

BMC Microbiol. 2017 Dec 8;17(1):229. doi: 10.1186/s12866-017-1137-9.


Resequencing of a mutant bearing an iron starvation recovery phenotype defines Slr1658 as a new player in the regulatory network of a model cyanobacterium.

Zer H, Margulis K, Georg J, Shotland Y, Kostova G, Sultan LD, Hess WR, Keren N.

Plant J. 2018 Jan;93(2):235-245. doi: 10.1111/tpj.13770. Epub 2017 Dec 20.


The glucosylglycerol-degrading enzyme GghA is involved in acclimation to fluctuating salinities by the cyanobacterium Synechocystis sp. strain PCC 6803.

Kirsch F, Pade N, Klähn S, Hess WR, Hagemann M.

Microbiology. 2017 Sep;163(9):1319-1328. doi: 10.1099/mic.0.000518. Epub 2017 Aug 31.


Systems and synthetic biology for the biotechnological application of cyanobacteria.

Hagemann M, Hess WR.

Curr Opin Biotechnol. 2018 Feb;49:94-99. doi: 10.1016/j.copbio.2017.07.008. Epub 2017 Aug 29. Review.


Customized workflow development and data modularization concepts for RNA-Sequencing and metatranscriptome experiments.

Lott SC, Wolfien M, Riege K, Bagnacani A, Wolkenhauer O, Hoffmann S, Hess WR.

J Biotechnol. 2017 Nov 10;261:85-96. doi: 10.1016/j.jbiotec.2017.06.1203. Epub 2017 Jul 1.


The RNA workbench: best practices for RNA and high-throughput sequencing bioinformatics in Galaxy.

Grüning BA, Fallmann J, Yusuf D, Will S, Erxleben A, Eggenhofer F, Houwaart T, Batut B, Videm P, Bagnacani A, Wolfien M, Lott SC, Hoogstrate Y, Hess WR, Wolkenhauer O, Hoffmann S, Akalin A, Ohler U, Stadler PF, Backofen R.

Nucleic Acids Res. 2017 Jul 3;45(W1):W560-W566. doi: 10.1093/nar/gkx409.


Acclimation of Oxygenic Photosynthesis to Iron Starvation Is Controlled by the sRNA IsaR1.

Georg J, Kostova G, Vuorijoki L, Schön V, Kadowaki T, Huokko T, Baumgartner D, Müller M, Klähn S, Allahverdiyeva Y, Hihara Y, Futschik ME, Aro EM, Hess WR.

Curr Biol. 2017 May 22;27(10):1425-1436.e7. doi: 10.1016/j.cub.2017.04.010. Epub 2017 May 4.


Draft Genome Sequences of Nine Cyanobacterial Strains from Diverse Habitats.

Zhu T, Hou S, Lu X, Hess WR.

Genome Announc. 2017 Mar 2;5(9). pii: e01676-16. doi: 10.1128/genomeA.01676-16.


Genome of a giant bacteriophage from a decaying Trichodesmium bloom.

Pfreundt U, Spungin D, Hou S, Voß B, Berman-Frank I, Hess WR.

Mar Genomics. 2017 Jun;33:21-25. doi: 10.1016/j.margen.2017.02.001. Epub 2017 Feb 22.


The Ssl2245-Sll1130 Toxin-Antitoxin System Mediates Heat-induced Programmed Cell Death in Synechocystis sp. PCC6803.

Srikumar A, Krishna PS, Sivaramakrishna D, Kopfmann S, Hess WR, Swamy MJ, Lin-Chao S, Prakash JS.

J Biol Chem. 2017 Mar 10;292(10):4222-4234. doi: 10.1074/jbc.M116.748178. Epub 2017 Jan 19.


Microbial metatranscriptomes from the thermally stratified Gulf of Aqaba/Eilat during summer.

Miller DR, Pfreundt U, Elifantz H, Hess WR, Berman-Frank I.

Mar Genomics. 2017 Apr;32:23-26. doi: 10.1016/j.margen.2016.12.001. Epub 2016 Dec 20.


Small proteins in cyanobacteria provide a paradigm for the functional analysis of the bacterial micro-proteome.

Baumgartner D, Kopf M, Klähn S, Steglich C, Hess WR.

BMC Microbiol. 2016 Nov 28;16(1):285.


Trimethylated homoserine functions as the major compatible solute in the globally significant oceanic cyanobacterium Trichodesmium.

Pade N, Michalik D, Ruth W, Belkin N, Hess WR, Berman-Frank I, Hagemann M.

Proc Natl Acad Sci U S A. 2016 Nov 15;113(46):13191-13196. Epub 2016 Oct 31.


mdRNA-Seq analysis of marine microbial communities from the northern Red Sea.

Hou S, Pfreundt U, Miller D, Berman-Frank I, Hess WR.

Sci Rep. 2016 Oct 19;6:35470. doi: 10.1038/srep35470.


Awakening of a Dormant Cyanobacterium from Nitrogen Chlorosis Reveals a Genetically Determined Program.

Klotz A, Georg J, Bučinská L, Watanabe S, Reimann V, Januszewski W, Sobotka R, Jendrossek D, Hess WR, Forchhammer K.

Curr Biol. 2016 Nov 7;26(21):2862-2872. doi: 10.1016/j.cub.2016.08.054. Epub 2016 Oct 6.


CyAbrB2 Contributes to the Transcriptional Regulation of Low CO2 Acclimation in Synechocystis sp. PCC 6803.

Orf I, Schwarz D, Kaplan A, Kopka J, Hess WR, Hagemann M, Klähn S.

Plant Cell Physiol. 2016 Oct;57(10):2232-2243. Epub 2016 Sep 16.


PbS Nanocrystal Emission Is Governed by Multiple Emissive States.

Caram JR, Bertram SN, Utzat H, Hess WR, Carr JA, Bischof TS, Beyler AP, Wilson MW, Bawendi MG.

Nano Lett. 2016 Oct 12;16(10):6070-6077. Epub 2016 Sep 16.


Structural constraints and enzymatic promiscuity in the Cas6-dependent generation of crRNAs.

Reimann V, Alkhnbashi OS, Saunders SJ, Scholz I, Hein S, Backofen R, Hess WR.

Nucleic Acids Res. 2017 Jan 25;45(2):915-925. doi: 10.1093/nar/gkw786. Epub 2016 Sep 5.


Type II Toxin-Antitoxin Systems in the Unicellular Cyanobacterium Synechocystis sp. PCC 6803.

Kopfmann S, Roesch SK, Hess WR.

Toxins (Basel). 2016 Jul 21;8(7). pii: E228. doi: 10.3390/toxins8070228.


The Non-Coding RNA Ncr0700/PmgR1 is Required for Photomixotrophic Growth and the Regulation of Glycogen Accumulation in the Cyanobacterium Synechocystis sp. PCC 6803.

de Porcellinis AJ, Klähn S, Rosgaard L, Kirsch R, Gutekunst K, Georg J, Hess WR, Sakuragi Y.

Plant Cell Physiol. 2016 Oct;57(10):2091-2103. Epub 2016 Jul 20.


A tightly inducible riboswitch system in Synechocystis sp. PCC 6803.

Ohbayashi R, Akai H, Yoshikawa H, Hess WR, Watanabe S.

J Gen Appl Microbiol. 2016 Jul 14;62(3):154-9. doi: 10.2323/jgam.2016.02.002. Epub 2016 Jun 1.


Insights into isoprene production using the cyanobacterium Synechocystis sp. PCC 6803.

Pade N, Erdmann S, Enke H, Dethloff F, Dühring U, Georg J, Wambutt J, Kopka J, Hess WR, Zimmermann R, Kramer D, Hagemann M.

Biotechnol Biofuels. 2016 Apr 18;9:89. doi: 10.1186/s13068-016-0503-4. eCollection 2016.


A Feed-Forward Loop Consisting of the Response Regulator RpaB and the Small RNA PsrR1 Controls Light Acclimation of Photosystem I Gene Expression in the Cyanobacterium Synechocystis sp. PCC 6803.

Kadowaki T, Nagayama R, Georg J, Nishiyama Y, Wilde A, Hess WR, Hihara Y.

Plant Cell Physiol. 2016 Apr;57(4):813-23. doi: 10.1093/pcp/pcw028. Epub 2016 Feb 12.


Sequential splicing of a group II twintron in the marine cyanobacterium Trichodesmium.

Pfreundt U, Hess WR.

Sci Rep. 2015 Nov 18;5:16829. doi: 10.1038/srep16829.


The sRNA NsiR4 is involved in nitrogen assimilation control in cyanobacteria by targeting glutamine synthetase inactivating factor IF7.

Klähn S, Schaal C, Georg J, Baumgartner D, Knippen G, Hagemann M, Muro-Pastor AM, Hess WR.

Proc Natl Acad Sci U S A. 2015 Nov 10;112(45):E6243-52. doi: 10.1073/pnas.1508412112. Epub 2015 Oct 22.


Integrated Analysis of Engineered Carbon Limitation in a Quadruple CO2/HCO3- Uptake Mutant of Synechocystis sp. PCC 6803.

Orf I, Klähn S, Schwarz D, Frank M, Hess WR, Hagemann M, Kopka J.

Plant Physiol. 2015 Nov;169(3):1787-806. doi: 10.1104/pp.15.01289. Epub 2015 Sep 15.


Transcriptomic and Proteomic Profiling of Anabaena sp. Strain 90 under Inorganic Phosphorus Stress.

Teikari J, Österholm J, Kopf M, Battchikova N, Wahlsten M, Aro EM, Hess WR, Sivonen K.

Appl Environ Microbiol. 2015 Aug;81(15):5212-22. doi: 10.1128/AEM.01062-15. Epub 2015 May 29.


Editorial: RNA in bacteria: biogenesis, regulatory mechanisms and functions.

Charpentier E, Hess WR.

FEMS Microbiol Rev. 2015 May;39(3):277-9. doi: 10.1093/femsre/fuv025. No abstract available.


Regulatory RNAs in photosynthetic cyanobacteria.

Kopf M, Hess WR.

FEMS Microbiol Rev. 2015 May;39(3):301-15. doi: 10.1093/femsre/fuv017. Epub 2015 Apr 30. Review.


Variations in the non-coding transcriptome as a driver of inter-strain divergence and physiological adaptation in bacteria.

Kopf M, Klähn S, Scholz I, Hess WR, Voß B.

Sci Rep. 2015 Apr 22;5:9560. doi: 10.1038/srep09560.


Trichodesmium genome maintains abundant, widespread noncoding DNA in situ, despite oligotrophic lifestyle.

Walworth N, Pfreundt U, Nelson WC, Mincer T, Heidelberg JF, Fu F, Waterbury JB, Glavina del Rio T, Goodwin L, Kyrpides NC, Land ML, Woyke T, Hutchins DA, Hess WR, Webb EA.

Proc Natl Acad Sci U S A. 2015 Apr 7;112(14):4251-6. doi: 10.1073/pnas.1422332112. Epub 2015 Mar 23.


CoVennTree: a new method for the comparative analysis of large datasets.

Lott SC, Voß B, Hess WR, Steglich C.

Front Genet. 2015 Feb 20;6:43. doi: 10.3389/fgene.2015.00043. eCollection 2015.


Expression profiling of the bloom-forming cyanobacterium Nodularia CCY9414 under light and oxidative stress conditions.

Kopf M, Möke F, Bauwe H, Hess WR, Hagemann M.

ISME J. 2015 Oct;9(10):2139-52. doi: 10.1038/ismej.2015.16. Epub 2015 Feb 17.


Integrated Transcriptomic and Metabolomic Characterization of the Low-Carbon Response Using an ndhR Mutant of Synechocystis sp. PCC 6803.

Klähn S, Orf I, Schwarz D, Matthiessen JK, Kopka J, Hess WR, Hagemann M.

Plant Physiol. 2015 Nov;169(3):1540-56. doi: 10.1104/pp.114.254045. Epub 2015 Jan 28.


Genomic and proteomic characterization of two novel siphovirus infecting the sedentary facultative epibiont cyanobacterium Acaryochloris marina.

Chan YW, Millard AD, Wheatley PJ, Holmes AB, Mohr R, Whitworth AL, Mann NH, Larkum AW, Hess WR, Scanlan DJ, Clokie MR.

Environ Microbiol. 2015 Nov;17(11):4239-52. doi: 10.1111/1462-2920.12735. Epub 2015 Feb 11.


Dataset for metatranscriptome analysis of Prochlorococcus-rich marine picoplankton communities in the Gulf of Aqaba, Red Sea.

Steglich C, Stazic D, Lott SC, Voigt K, Greengrass E, Lindell D, Hess WR.

Mar Genomics. 2015 Feb;19:5-7. doi: 10.1016/j.margen.2014.10.009. Epub 2014 Nov 4.


Complete genome determination and analysis of Acholeplasma oculi strain 19L, highlighting the loss of basic genetic features in the Acholeplasmataceae.

Siewert C, Hess WR, Duduk B, Huettel B, Reinhardt R, Büttner C, Kube M.

BMC Genomics. 2014 Oct 24;15:931. doi: 10.1186/1471-2164-15-931.


The hierarchy of transition metal homeostasis: iron controls manganese accumulation in a unicellular cyanobacterium.

Sharon S, Salomon E, Kranzler C, Lis H, Lehmann R, Georg J, Zer H, Hess WR, Keren N.

Biochim Biophys Acta. 2014 Dec;1837(12):1990-7.


The small regulatory RNA SyR1/PsrR1 controls photosynthetic functions in cyanobacteria.

Georg J, Dienst D, Schürgers N, Wallner T, Kopp D, Stazic D, Kuchmina E, Klähn S, Lokstein H, Hess WR, Wilde A.

Plant Cell. 2014 Sep;26(9):3661-79. doi: 10.1105/tpc.114.129767. Epub 2014 Sep 23.


The primary transcriptome of the marine diazotroph Trichodesmium erythraeum IMS101.

Pfreundt U, Kopf M, Belkin N, Berman-Frank I, Hess WR.

Sci Rep. 2014 Aug 26;4:6187. doi: 10.1038/srep06187.


The diversity of small non-coding RNAs in the diatom Phaeodactylum tricornutum.

Rogato A, Richard H, Sarazin A, Voss B, Cheminant Navarro S, Champeimont R, Navarro L, Carbone A, Hess WR, Falciatore A.

BMC Genomics. 2014 Aug 20;15:698. doi: 10.1186/1471-2164-15-698.

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