Komagataeibacter europaeus improves community stability and function in solid-state cereal vinegar fermentation ecosystem: non-abundant species plays important role

2021 ◽  
pp. 110815
Author(s):  
Ming-Ye Peng ◽  
Xiao-Juan Zhang ◽  
Ting Huang ◽  
Xiao-Zhong Zhong ◽  
Li-Juan Chai ◽  
...  
Keyword(s):  
Solid State ◽  
Abundant Species ◽  
Community Stability ◽  
And Function

Lithium transition metal pnictides – structural chemistry, electrochemistry, and function

2015 ◽  
Vol 35 (1) ◽  
pp. 1-24 ◽  
Author(s):  
Florian Winter ◽  
Rainer Pöttgen ◽  
Magnus Greiwe ◽  
Tom Nilges
Keyword(s):  
Solid State ◽  
Transition Metal ◽  
Crystal Structures ◽  
Chemical Bonding ◽  
Electrochemical Behavior ◽  
Solid State Nmr ◽  
Structural Chemistry ◽  
Covalently Bonded ◽  
Interesting Class ◽  
And Function

AbstractLithium-transition metal (T)-pnictides (Pn=P, As, Sb, Bi) are an interesting class of materials with greatly differing crystal structures. The transition metal and pnictide atoms build up covalently bonded networks that leave cavities or channels for the lithium atoms. Depending on the bonding of lithium to the polyanionic network, one observes mobility of the lithium atoms. The crystal chemistry, chemical bonding, 7Li solid-state NMR, and the electrochemical behavior of the pnictides are reviewed. The structural chemistry is compared with related tetrelides.

scholarly journals Towards a native environment: structure and function of membrane proteins in lipid bilayers by NMR

2021 ◽  
Author(s):  
Kai Xue ◽  
Kumar Tekwani Movellan ◽  
Xizhou Cecily Zhang ◽  
Eszter E. Najbauer ◽  
Marcel C. Forster ◽  
...  
Keyword(s):  
Solid State ◽  
Membrane Proteins ◽  
Small Molecules ◽  
Lipid Bilayers ◽  
Biological Samples ◽  
Solid State Nmr ◽  
Structure And Function ◽  
Versatile Technique ◽  
And Function

Solid-state NMR (ssNMR) is a versatile technique that can be used for the characterization of various materials, ranging from small molecules to biological samples, including membrane proteins, as reviewed here.

Synthese und Kristallstruktur von tetramerem N,N'-Diphenylformamidinato-gold(I), [Au(PhNCH NPh)]4/Synthesis and Structure of Tetrameric N,N'-Diphenylformamidinato Gold(I), [Au(PhNCHNPh)]4

1989 ◽  
Vol 44 (1) ◽  
pp. 1-4 ◽  
Author(s):  
Edmund Hartmann ◽  
Joachim Strähle
Keyword(s):  
Solid State ◽  
Liquid Ammonia ◽  
Bridging Ligands ◽  
Space Group ◽  
Lattice Constants ◽  
And Function ◽  
Tetrameric Complex ◽  
Linear Coordination

Abstract N.N'-Diphenylformamidinato gold(I) (1) is obtained from Na(PhNCH NPh) and Aul in liquid ammonia. It can be recrystallized from toluene/n-heptane to form colorless monoclinic crystals, the space group C 2/c, with the lattice constants a = 1781.7(7), b = 1159.0(5), c = 2518.7(8) pm, β = 99.06(3)°. 1 is tetrameric in solution and in the solid state. In the tetrameric complex with the symmetry C2 the four Au atoms form a planar rhombus with Au -Au distances between 295,7 and 322.7 pm. The amidinato ligands are arranged alternatively above and below the Au4-rhombus and function as bridging ligands for neighbouring Au atoms, which thereby reach a linear coordination with distances A u -N between 200.0 and 202.4 pm.

Crystalline Molecular Machines: A Quest Toward Solid-State Dynamics and Function

ChemInform ◽  
2006 ◽  
Vol 37 (37) ◽  
Author(s):  
Tinh-Alfredo V. Khuong ◽  
Jose E. Nunez ◽  
Carlos E. Godinez ◽  
Miguel A. Garcia-Garibay
Keyword(s):  
Solid State ◽  
Molecular Machines ◽  
Dynamics And Function ◽  
And Function

The effect of position on esophageal structure and function determined with solid-state high-resolution manometry

2015 ◽  
Vol 16 (6) ◽  
pp. 350-356 ◽  
Author(s):  
Xiu Jing Zhang ◽  
Xue Lian Xiang ◽  
Lei Tu ◽  
Xiao Ping Xie ◽  
Xiao Hua Hou
Keyword(s):  
Solid State ◽  
High Resolution ◽  
Structure And Function ◽  
High Resolution Manometry ◽  
And Function

scholarly journals Clostridium difficilealters the structure and metabolism of distinct cecal microbiomes during initial infection to promote sustained colonization

2017 ◽  
Author(s):  
Matthew L. Jenior ◽  
Jhansi L. Leslie ◽  
Vincent B. Young ◽  
Patrick D. Schloss
Keyword(s):  
Abundant Species ◽  
Structure And Function ◽  
Previous Exposure ◽  
Metabolomic Analysis ◽  
Initial Infection ◽  
Pathogen Colonization ◽  
And Function ◽  
Mouse Model Of Infection ◽  
The Impact ◽  
Structure And Metabolism

AbstractSusceptibility toClostridium difficileinfection is primarily associated with previous exposure to antibiotics, which compromise the structure and function of the gut bacterial community. Specific antibiotic classes correlate more strongly with recurrent or persistentC. difficileinfection. As such, we utilized a mouse model of infection to explore the effect of distinct antibiotic classes on the impact that infection has on community-level transcription and metabolic signatures shortly following pathogen colonization and how those changes may associate with persistence ofC. difficile. Untargeted metabolomic analysis revealed thatC. difficileinfection had significantly larger impacts on the metabolic environment across cefoperazone and streptomycin-pretreated mice, which become persistently colonized compared to clindamycin-pretreated mice where infection quickly became undetectable. Through metagenome-enabled metatranscriptomics we observed that transcripts for genes associated with carbon and energy acquisition were greatly reduced in infected animals, suggesting those niches were instead occupied byC. difficile. Furthermore, the largest changes in transcription were seen in the least abundant species indicating thatC. difficilemay “attack the loser” in gut environments where sustained infection occurs more readily. Overall, our results suggest thatC. difficileis able to restructure the nutrient-niche landscape in the gut to promote persistent infection.

scholarly journals Biotic stability mechanisms in Inner Mongolian grassland

2020 ◽  
Vol 287 (1928) ◽  
pp. 20200675
Author(s):  
Yonghui Wang ◽  
Xiaxia Niu ◽  
Liqing Zhao ◽  
Cunzhu Liang ◽  
Bailing Miao ◽  
...  
Keyword(s):  
Population Dynamics ◽  
Species Richness ◽  
Experimental Studies ◽  
Species Abundance ◽  
Abundant Species ◽  
Community Stability ◽  
Natural Ecosystems ◽  
Separate Species ◽  
Mongolian Grassland ◽  
Biotic Stability

Biotic mechanisms associated with species diversity are expected to stabilize communities in theoretical and experimental studies but may be difficult to detect in natural communities exposed to large environmental variation. We investigated biotic stability mechanisms in a multi-site study across Inner Mongolian grassland characterized by large spatial variations in species richness and composition and temporal fluctuations in precipitation. We used a new additive-partitioning method to separate species synchrony and population dynamics within communities into different species-abundance groups. Community stability was independent of species richness but was regulated by species synchrony and population dynamics, especially of abundant species. Precipitation fluctuations synchronized population dynamics within communities, reducing their stability. Our results indicate generality of biotic stability mechanisms in natural ecosystems and suggest that for accurate predictions of community stability in changing environments uneven species composition should be considered by partitioning stabilizing mechanisms into different species-abundance groups.

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