Results 11 to 20 of about 1,262 (192)

The ribonuclease E regulator RebA is essential for diazotrophic growth in the cyanobacterium Anabaena PCC 7120 [PDF]

mLife
Ribonuclease E (RNase E) is central to bacterial RNA metabolism. In cyanobacteria, its activity is inhibited by RebA, a key mechanism for controlling cell morphology.
Sujuan Liu, Zhenyu Wang, Guiming Lin, Wenkai Li, Xiaoli Zeng, Ju‐Yuan Zhang, Cheng‐Cai Zhang   +6 more
doaj   +3 more sources

FurA influences heterocyst differentiation in Anabaena sp. PCC 7120

FEBS Letters, 2013
In Anabaena sp. PCC 7120, FurA is a global transcriptional regulator whose expression is strongly induced by NtcA in proheterocysts and remains stably expressed in mature heterocysts. In the present study, overexpression of furA partially suppressed heterocyst differentiation by impairing morphogenesis at an early stage.
González, Andrés, Valladares, Ana, Peleato, M. Luisa, Fillat, María F.   +3 more
openaire   +3 more sources

Structure of transcription factor HetR required for heterocyst differentiation in cyanobacteria. [PDF]

Proc Natl Acad Sci U S A, 2011
HetR is an essential regulator of heterocyst development in cyanobacteria. HetR binds to a DNA palindrome upstream of the hetP gene. We report the crystal structure of HetR from Fischerella at 3.0 Å.
Kim Y, Joachimiak G, Ye Z, Binkowski TA, Zhang R, Gornicki P, Callahan SM, Hess WR, Haselkorn R, Joachimiak A.   +9 more
europepmc   +5 more sources

Cyanoglobule lipid droplet accumulation as a stress response to nitrogen starvation in a non-N2-fixing mutant strain of Anabaena sp. PCC 7120. [PDF]

PLoS ONE
Cyanoglobules are lipid droplets of cyanobacteria that share compositional and functional features with plastoglobules of plant chloroplasts. However, their roles in stress physiology remain poorly defined, particularly in filamentous cyanobacteria. Here,
Febri A Susanto, Carrie Hiser, Mohit Mahey, Peter K Lundquist   +3 more
doaj   +2 more sources

Insights into the physiology and ecology of the brackish-water-adapted Cyanobacterium Nodularia spumigena CCY9414 based on a genome-transcriptome analysis. [PDF]

PLoS ONE, 2013
Nodularia spumigena is a filamentous diazotrophic cyanobacterium that dominates the annual late summer cyanobacterial blooms in the Baltic Sea. But N. spumigena also is common in brackish water bodies worldwide, suggesting special adaptation allowing it ...
Björn Voss, Henk Bolhuis, David P Fewer, Matthias Kopf, Fred Möke, Fabian Haas, Rehab El-Shehawy, Paul Hayes, Birgitta Bergman, Kaarina Sivonen, Elke Dittmann, Dave J Scanlan, Martin Hagemann, Lucas J Stal, Wolfgang R Hess   +14 more
doaj   +2 more sources

Distinct cell division features in Anabaena, a multicellular cyanobacterium [PDF]

Journal of Bacteriology
Filamentous cyanobacteria such as Anabaena display a distinct multicellular organization in the bacterial kingdom. In the filament, the cells share a common periplasm and continuous peptidoglycan sacculus and outer membrane.
Antonia Herrero
doaj   +2 more sources

Functional Overlap of hetP and hetZ in Regulation of Heterocyst Differentiation in Anabaena sp. Strain PCC 7120. [PDF]

J Bacteriol, 2018
HetR plays a key role in regulation of heterocyst differentiation and patterning in Anabaena. It directly regulates genes involved in heterocyst differentiation (such as hetP and hetZ), genes involved in pattern formation (patA), and many others. In this
Zhang H, Wang S, Wang Y, Xu X.
europepmc   +3 more sources

Unravelling HetC as a peptidase-based ABC exporter driving functional cell differentiation in the cyanobacterium Nostoc PCC 7120 [PDF]

Microbiology Spectrum
The export of peptides or proteins is essential for a variety of important functions in bacteria. Among the diverse protein-translocation systems, peptidase-containing ABC transporters (PCAT) are involved in the maturation and export of quorum-sensing or
Raphaël Rachedi, Véronique Risoul, Maryline Foglino, Yanis Aoudache, Kevin Lang, Stéphanie Champ, Elise Kaplan, Cédric Orelle, Badreddine Douzi, Jean-Michel Jault, Amel Latifi   +10 more
doaj   +2 more sources

Spatio-temporal coherence of circadian clocks and temporal control of differentiation in Anabaena filaments [PDF]

mSystems
Circadian clock arrays in multicellular filaments of the heterocyst-forming cyanobacterium Anabaena sp. strain PCC 7120 display remarkable spatio-temporal coherence under nitrogen-replete conditions.
Rinat Arbel-Goren, Bareket Dassa, Anna Zhitnitsky, Ana Valladares, Antonia Herrero, Enrique Flores, Joel Stavans   +6 more
doaj   +2 more sources

Structures of Anabaena calcium-binding protein CcbP: insights into Ca2+ signaling during heterocyst differentiation. [PDF]

J Biol Chem, 2011
Ca2+-binding proteins play pivotal roles in both eukaryotic and prokaryotic cells. CcbP from cyanobacterium Anabaena sp. strain PCC 7120 is a major Ca2+-binding protein involved in heterocyst differentiation, a process that forms specialized nitrogen ...
Hu Y, Zhang X, Shi Y, Zhou Y, Zhang W, Su XD, Xia B, Zhao J, Jin C.   +8 more
europepmc   +3 more sources