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1. Soft self-assembled sub-5 nm scale chessboard and snub-square tilings with oligo(para-phenyleneethynylene) rods

Author:
Nürnberger, Constance; LuPresent address: College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, P. R. China., Huanjun; Zeng, Xiangbing; Liu, Feng; Ungar, Goran; Hahn, Harald; Lang, Heinrich; Prehm, Marko; Tschierske, Carsten
Source:
Chemical communications 2019 v.55 no.29 pp. 4154-4157
ISSN:
1364-548X
Subject:
cell walls,   etc   ; chemical reactions; glycerol; perfluorocarbons;     Show all 4 Subjects
Abstract:
... X-Shaped bolapolyphiles, comprising a linear polyaromatic core with glycerol groups at each end and two chemically different and incompatible chains, fixed to it at opposite sides, were synthesized and found to self-assemble into honeycomb-type liquid crystalline phases with square symmetry. The polyaromatic π-conjugated rods form the cell walls and the resulting prismatic cells of sub-5 nm size a ...
DOI:
10.1039/c9cc00494g

2. Synthesis of a biotinylated probe from biotechnologically derived β-d-mannopyranosyl-(1 → 2)-d-mannopyranose for assessment of carbohydrate specificity of antibodies

Author:
Karelin, Alexander A.; Ustyuzhanina, Nadezhda E.; Tsvetkov, Yury E.; Nifantiev, Nikolay E.
Source:
Carbohydrate research 2019 v.471 pp. 39-42
ISSN:
0008-6215
Subject:
cell walls,   etc   ; antibodies; carbohydrates; dephosphorylation; yeasts;     Show all 5 Subjects
Abstract:
... The disaccharide β-d-mannopyranosyl-(1 → 2)-d-mannopyranose obtained by chemical cleavage and enzymatic dephosphorylation of biotechnologically available phosphomannan was transformed over six steps into a biotinylated probe suitable for assessment of carbohydrate specificity of antibodies induced by yeast cell wall preparations. ...
DOI:
10.1016/j.carres.2018.10.013

3. Investigating the relationship between grape cell wall polysaccharide composition and the extractability of phenolic compounds into Shiraz wines. Part I: Vintage and ripeness effects

Author:
Garrido-Bañuelos, Gonzalo; Buica, Astrid; Schückel, Julia; Zietsman, Anscha J.J.; Willats, William G.T.; Moore, John P.; Du Toit, Wessel J.
Source:
Food chemistry 2019 v.278 pp. 36-46
ISSN:
0308-8146
Subject:
cell wall components; cell walls,   etc   ; color; grapes; pectins; phenols; red wines; ripening; sensory properties; variance; winemaking;     Show all 11 Subjects
Abstract:
... Phenolic compounds play an important role in colour stability and sensory properties of red wine. This study evaluated berry skin cell wall composition and how this influences grape and wine phenolics at different ripeness levels (21°Brix, 23°Brix, and 25°Brix) over two consecutive vintages. The vintage effect was highly significant, especially in the pectin fraction of the grape cell walls and af ...
DOI:
10.1016/j.foodchem.2018.10.134

4. Covalent interactions between lignin and hemicelluloses in plant secondary cell walls

Author:
Terrett, Oliver M; Dupree, Paul
Source:
Current opinion in biotechnology 2019 v.56 pp. 97-104
ISSN:
0958-1669
Subject:
cell wall components; cell walls,   etc   ; Liliopsida; chemical bonding; crosslinking; embryophytes; engineering; lignification; lignin; phytomass; xylan;     Show all 11 Subjects
Abstract:
... The plant secondary cell wall is a complex structure composed of polysaccharides and lignin, and is a key evolutionary innovation of vascular land plants. Although cell wall composition is well understood, the cross-linking of the different polymers is only now yielding to investigation. Cross-linking between hemicelluloses and lignin occurs via two different mechanisms: incorporation into lignin ...
DOI:
10.1016/j.copbio.2018.10.010

5. Gazing at Cell Wall Expansion under a Golden Light

Author:
Charrier, Bénédicte; Rabillé, Hervé; Billoud, Bernard
Source:
Trends in plant science 2019 v.24 no.2 pp. 130-141
ISSN:
1360-1385
Subject:
cell wall components; cell walls,   etc   ; Phaeophyceae; cell growth; chemistry; mechanical properties; plasticity;     Show all 7 Subjects
Abstract:
... In plants, cell growth is constrained by a stiff cell wall, at least this is the way textbooks usually present it. Accordingly, many studies have focused on the elasticity and plasticity of the cell wall as prerequisites for expansion during growth. With their specific evolutionary history, cell wall composition, and environment, brown algae present a unique configuration offering a new perspectiv ...
DOI:
10.1016/j.tplants.2018.10.013

6. Cellulose Synthesis – Central Components and Their Evolutionary Relationships

Author:
Lampugnani, Edwin R.; Flores-Sandoval, Eduardo; Tan, Qiao Wen; Mutwil, Marek; Bowman, John L.; Persson, Staffan
Source:
Trends in plant science 2019 v.24 no.5 pp. 402-412
ISSN:
1360-1385
Subject:
cell walls,   etc   ; Arabidopsis thaliana; cellulose; fuels; industry; raw materials;     Show all 6 Subjects
Abstract:
... Cellulose is an essential morphogenic polysaccharide that is central to the stability of plant cell walls and provides an important raw material for a range of plant-based fiber and fuel industries. The past decade has seen a substantial rise in the identification of cellulose synthesis-related components and in our understanding of how these components function. Much of this research has been con ...
DOI:
10.1016/j.tplants.2019.02.011

7. Preprophase-band positioning in isolated tobacco BY-2 cells: evidence for a principal role of nucleus-cell cortex interaction in default division-plane selection

Author:
Asada, Tetsuhiro
Source:
Protoplasma 2019 v.256 no.3 pp. 721-729
ISSN:
0033-183X
Subject:
cell walls,   etc   ; cortex; microtubules; models; surface area; tobacco;     Show all 6 Subjects
Abstract:
... In some plant tissue types, new cross-walls tend to divide parental cells equally and to meet parental walls at right angles while tending to have minimal surface area. A previously proposed model that I call the reach model suggests that this feature originates from the tendency of premitotic division-plane selection or of the positioning of microtubule preprophase bands (PPBs) which predict the ...
DOI:
10.1007/s00709-018-01331-5

8. Lignin structure and its engineering

Author:
Ralph, John; Lapierre, Catherine; Boerjan, Wout
Source:
Current opinion in biotechnology 2019 v.56 pp. 240-249
ISSN:
0958-1669
Subject:
cell walls,   etc   ; biochemical pathways; engineering; genes; lignin; phenolic compounds; polysaccharides;     Show all 7 Subjects
Abstract:
... Studies on lignin structure and its engineering are inextricably and bidirectionally linked. Perturbations of genes on the lignin biosynthetic pathway may result in striking compositional and structural changes that in turn suggest novel approaches for altering lignin and even ‘designing’ the polymer to enhance its value or with a view toward its simpler removal from the cell wall polysaccharides. ...
DOI:
10.1016/j.copbio.2019.02.019

9. GPI-anchored SKS proteins regulate root development through controlling cell polar expansion and cell wall synthesis

Author:
Zhou, Ke
Source:
Biochemical and biophysical research communications 2019 v.509 no.1 pp. 119-124
ISSN:
0006-291X
Subject:
cell walls,   etc   ; Arabidopsis; knockout mutants; proteins; roots; seedlings;     Show all 6 Subjects
Abstract:
... Glycosylphosphatidylinositol-anchored proteins were reported to be involved in many developmental progresses in Arabidopsis. Here I report that, a group of homologous glycosylphosphatidylinositol-anchored proteins from SKU5-Similar family regulate seedling root development of Arabidopsis through controlling cell polar expansion and cell wall synthesis. Due to the irregular expansion of root cells ...
DOI:
10.1016/j.bbrc.2018.12.081

10. Aspergillus fumigatus Mnn9 is responsible for mannan synthesis and required for covalent linkage of mannoprotein to the cell wall

Author:
Du, Ting; Ouyang, Haomiao; Voglmeir, Josef; Wilson, Iain B.H.; Jin, Cheng
Source:
Fungal genetics and biology 2019 v.128 pp. 20-28
ISSN:
1087-1845
Subject:
cell wall components; cell walls,   etc   ; Aspergillus fumigatus; biosynthesis; chitin; galactomannans; genes; glucans; humans; hygromycin B; mannose; mutants; transferases;     Show all 13 Subjects
Abstract:
... Owing to the essential role in protection of the Aspergillus fumigatus cell against human defense reactions, its cell wall has long been taken as a promising antifungal target. The cell wall of A. fumigatus composed of chitin, glucan and galactomannan and mannoproteins. Although galactomannan has been used as a diagnostic target for a long time, its biosynthesis remains unknown in A. fumigatus. In ...
DOI:
10.1016/j.fgb.2019.03.006

11. Advances in microbial lignin degradation and its applications

Author:
Kamimura, Naofumi; Sakamoto, Shingo; Mitsuda, Nobutaka; Masai, Eiji; Kajita, Shinya
Source:
Current opinion in biotechnology 2019 v.56 pp. 179-186
ISSN:
0958-1669
Subject:
cell wall components; cell walls,   etc   ; bioengineering; biomass; depolymerization; lignin; lignocellulose; microbial enzymes; mineralization; petroleum; production technology; sustainable development; value added;     Show all 13 Subjects
Abstract:
... Lignocellulosic biomass represents a crucial resource for achieving sustainable development by replacing petroleum-based production systems. Lignin, a major component of plant cell walls, has significant potential as a bioresource; however, it is an obstacle in lignocellulosic biomass utilization due to its recalcitrance. Consequently, decomposition or removal of lignin is a crucial step to utiliz ...
DOI:
10.1016/j.copbio.2018.11.011

12. Desiccation tolerance in plants: Structural characterization of the cell wall hemicellulosic polysaccharides in three Selaginella species

Author:
Plancot, Barbara; Gügi, Bruno; Mollet, Jean-Claude; Loutelier-Bourhis, Corinne; Ramasandra Govind, Sharathchandra; Lerouge, Patrice; Follet-Gueye, Marie-Laure; Vicré, Maïté; Alfonso, Carlos; Nguema-Ona, Eric; Bardor, Muriel; Driouich, Azeddine
Source:
Carbohydrate polymers 2019 v.208 pp. 180-190
ISSN:
0144-8617
Subject:
cell wall components; cell walls,   etc   ; Selaginella kraussiana; Selaginella moellendorffii; arabinoxylan; drought tolerance; galactomannans; leaves; oligosaccharides; plant tissues; water stress; xyloglucans;     Show all 12 Subjects
Abstract:
... Drought-induced dehydration of vegetative tissues in lycopods affects growth and survival. Different species of Selaginella have evolved a series of specialized mechanisms to tolerate desiccation in vegetative tissues in response to water stress. In the present study, we report on the structural characterization of the leaf cell wall of the desiccation-tolerant species S. involvens and two desicca ...
DOI:
10.1016/j.carbpol.2018.12.051

13. Influence of fungal infection on plant tissues: FTIR detects compositional changes to plant cell walls

Author:
Chow, Yiing Yng; Ting, Adeline Su Yien
Source:
Fungal ecology 2019 v.37 pp. 38-47
ISSN:
1754-5048
Subject:
cell wall components; cell walls,   etc   ; Elaeis guineensis; Fourier transform infrared spectroscopy; clones; endophytes; enzymes; fungi; lignin; pathogens; plant tissues; xylan;     Show all 12 Subjects
Abstract:
... Compositional change in plant cell walls as a result of infection by non-host (putative) endophytes and a host pathogen were studied by quantifying plant cell wall degrading enzymes (CWDEs) produced by these fungi, and by detecting cell wall changes via Fourier Transform Infrared spectroscopy (FTIR) and relative lignin/carbohydrate intensity ratios. Oil palm ramets were first inoculated with homog ...
DOI:
10.1016/j.funeco.2018.10.004

14. The Slt2-MAPK pathway is involved in the mechanism by which target of rapamycin regulates cell wall components in Ganoderma lucidum

Author:
Chen, Dong-Dong; Shi, Liang; Yue, Si-Ning; Zhang, Tian-Jun; Wang, Sheng-Li; Liu, Yong-Nan; Ren, Ang; Zhu, Jing; Yu, Han-Shou; Zhao, Ming-Wen
Source:
Fungal genetics and biology 2019 v.123 pp. 70-77
ISSN:
1087-1845
Subject:
cell wall components; cell walls,   etc   ; Ganoderma lucidum; RNA interference; cell growth; chitin; medicinal fungi; mitogen-activated protein kinase; mycelium; rapamycin;     Show all 10 Subjects
Abstract:
... The fungal cell wall is very important for cell growth and survival during stress, and the target of rapamycin (TOR) pathway plays a major role in regulating cell growth in response to environmental cues. Ganoderma lucidum is an important edible and medicinal fungus, and the function of TOR in this organism remains unclear. As shown in the present study, the TOR pathway regulates cell wall integri ...
DOI:
10.1016/j.fgb.2018.12.005

15. Expanding roles for pectins in plant development

Author:
Saffer, Adam M.
Source:
Journal of integrative plant biology 2018 v.60 no.10 pp. 910-923
ISSN:
1672-9072
Subject:
cell wall components; cell walls,   etc   ; morphogenesis; mutants; pectins; plant development;     Show all 6 Subjects
Abstract:
... Pectins are complex cell wall polysaccharides important for many aspects of plant development. Recent studies have discovered extensive physical interactions between pectins and other cell wall components, implicating pectins in new molecular functions. Pectins are often localized in spatially‐restricted patterns, and some of these non‐uniform pectin distributions contribute to multiple aspects of ...
DOI:
10.1111/jipb.12662

16. Challenges and opportunities in mimicking non-enzymatic brown-rot decay mechanisms for pretreatment of Norway spruce

Author:
Hegnar, Olav Aaseth; Goodell, Barry; Felby, Claus; Johansson, Lars; Labbé, Nicole; Kim, Keonhee; Eijsink, Vincent G. H.; Alfredsen, Gry; Várnai, Anikó
Source:
Wood science and technology 2019 v.53 no.2 pp. 291-311
ISSN:
0043-7719
Subject:
cell wall components; cell walls,   etc   ; Picea abies; biorefining; brown-rot fungi; depolymerization; enzymes; feedstocks; fuel production; glucose; lignocellulose; reactive oxygen species; saccharification; softwood;     Show all 14 Subjects
Abstract:
... The recalcitrance bottleneck of lignocellulosic materials presents a major challenge for biorefineries, including second-generation biofuel production. Because of their abundance in the northern hemisphere, softwoods, such as Norway spruce, are of major interest as a potential feedstock for biorefineries. In nature, softwoods are primarily degraded by basidiomycetous fungi causing brown rot. These ...
DOI:
10.1007/s00226-019-01076-1

17. Microalgae disruption techniques for product recovery: influence of cell wall composition

Author:
Alhattab, Mariam; Kermanshahi-Pour, Azadeh; Brooks, Marianne Su-Ling
Source:
Journal of applied phycology 2019 v.31 no.1 pp. 61-88
ISSN:
0921-8971
Subject:
cell wall components; cell walls,   etc   ; autoclaves; biomass; economics; energy efficiency; enzymatic hydrolysis; feedstocks; homogenization; microalgae; milling; solvents; sonication; steam; surfactants; value-added products;     Show all 16 Subjects
Abstract:
... Microalgae are one of the most promising feedstocks for the production of commodity and value-added products. However, the use of microalgae as a feedstock is hampered by the process economics and sustainability. Overall sustainability can be improved by employing energy-efficient cell disruption and recovery processes to maximize the extraction of desired compounds from microalgal biomass. Most o ...
DOI:
10.1007/s10811-018-1560-9

18. Neurospora crassa family GH72 glucanosyltransferases function to crosslink cell wall glycoprotein N-linked galactomannan to cell wall lichenin

Author:
Kar, Bibekananda; Patel, Pavan; Ao, Jie; Free, Stephen J.
Source:
Fungal genetics and biology 2019 v.123 pp. 60-69
ISSN:
1087-1845
Subject:
cell wall components; cell walls,   etc   ; Neurospora crassa; adhesion; chitin; crosslinking; energy; fungi; galactomannans; glucans; glycoproteins; glycosidic linkages; in vitro studies; morphogenesis; oligosaccharides; signal transduction; structural proteins; transferases;     Show all 18 Subjects
Abstract:
... The formation of a glucan/chitin/glycoprotein cell wall matrix is vital for fungal survival, growth, and morphogenesis. The cell wall proteins are important cell wall components and function in adhesion, signal transduction, and as cell wall structural elements. In this report we demonstrate that Neurospora crassa GH72 glucan transferases function to crosslink cell wall glycoproteins into the cell ...
DOI:
10.1016/j.fgb.2018.11.007

19. Thermal expansion of wood at different equilibrium moisture contents

Author:
Goli, Giacomo; Becherini, Francesca; Di Tuccio, Maria Concetta; Bernardi, Adriana; Fioravanti, Marco
Source:
Journal of wood science 2019 v.65 no.1 pp. 4
ISSN:
1435-0211
Subject:
cell walls,   etc   ; Picea abies; data collection; deformation; equilibrium moisture content; relative humidity; temperature; thermal expansion; wood;     Show all 9 Subjects
Abstract:
... The measurement of wood thermal expansion at fixed values of moisture content (MC) between the dry state and the cell wall saturation point is a very difficult task, as MC varies with temperature. Being hygroscopic deformations much larger than thermal ones, in order to evaluate the latter, when changing temperature also relative humidity should be adapted. To achieve this goal a special apparatus ...
DOI:
10.1186/s10086-019-1781-9

20. Effect of morin on the degradation of water-soluble polysaccharides in banana during softening

Author:
Yang, Jiali; Zeng, Jun; Wen, Lingrong; Zhu, Hong; Jiang, Yueming; John, Afiya; Yu, Limei; Yang, Bao
Source:
Food chemistry 2019 v.287 pp. 346-353
ISSN:
0308-8146
Subject:
cell walls,   etc   ; arabinogalactan proteins; bananas; nuclear magnetic resonance spectroscopy; polygalacturonic acid; pulp; starch granules; water solubility;     Show all 8 Subjects
Abstract:
... The degradation of cell wall polysaccharides is highly associated with the softening process of banana. In this work, banana was treated by morin to delay softening during storage. Water-soluble polysaccharides were extracted from banana pulp at four storage stages. Their levels increased when the banana was green, but decreased when turned to yellow. Three types of polysaccharides were identified ...
DOI:
10.1016/j.foodchem.2019.02.100