Chemical Composition and Structure of Sulphated Water-Soluble Cell-Wall Polysaccharides from the Gametic, Carposporic and Tetrasporic Stages of Asparagopsis armata Harvey (Rhodophyta, Bonnemaisoniaceae)

2000 ◽  
Vol 43 (5) ◽  
Author(s):  
C. Haslin ◽  
M. Lahaye ◽  
M. Pellegrini
Keyword(s):  
Cell Wall ◽  
Chemical Composition ◽  
Water Soluble ◽  
Cell Wall Polysaccharides ◽  
Soluble Cell ◽  
Composition And Structure ◽  
Asparagopsis Armata

scholarly journals Structural Properties and Macrophage Activation of Cell Wall Polysaccharides from the Fruiting Bodies of Hericium erinaceus

Polymers ◽  
2018 ◽  
Vol 10 (8) ◽  
pp. 850
Author(s):  
Di Wu ◽  
Shan Yang ◽  
Chuan Tang ◽  
Yanfang Liu ◽  
Qiaozhen Li ◽  
...  
Keyword(s):  
Cell Wall ◽  
Structural Properties ◽  
Fruiting Body ◽  
Macrophage Activation ◽  
Water Soluble ◽  
Fruiting Bodies ◽  
Cell Wall Polysaccharides ◽  
Hericium Erinaceus ◽  
Soluble Cell

In this study, water-soluble and alkali-soluble cell wall polysaccharides were obtained from fruiting body extracted residual micropowders of Hericium erinaceus, harvested at seven different growing stages. The structural properties and in vitro immunity activities of cell wall polysaccharides extracted successively by hot water and sodium hydroxide solution were studied, and the results indicated that the yield and content of polysaccharides increased during the reproductive growth stage and decreased with the maturity of the fruiting body. Water-soluble cell wall polysaccharides mainly composed of glucose and galactose at a molar ratio of 3.4–14:1.0, and also contained a small ratio of glucuronic acid. The alkali-soluble cell wall polysaccharides were glucans with lower molecular weight and higher macrophage activation activity in vitro than water-soluble ones. Our findings suggest that the growth stages (H4 and H5) are suitable for harvesting H. erinaceus fruiting bodies with higher cell wall polysaccharide yield and functional benefits.

Cell wall polysaccharides F1SS disclose the relatedness of the genus Geosmithia with Eupenicillium and Talaromyces

2002 ◽  
Vol 80 (4) ◽  
pp. 410-415 ◽  
Author(s):  
Alicia Prieto ◽  
Oussama Ahrazem ◽  
Begoña Gómez-Miranda ◽  
Manuel Bernabé ◽  
J Antonio Leal
Keyword(s):  
Cell Wall ◽  
Cell Walls ◽  
Water Soluble ◽  
Cell Wall Polysaccharides ◽  
H Nmr ◽  
Soluble Cell ◽  
Talaromyces Flavus ◽  
Chemotaxonomic Markers

Cell wall polysaccharides have been used as chemotaxonomic markers in a number of fungal genera. In this study, alkali-extractable and water-soluble cell wall polysaccharides F1SS were purified from cell walls of species of the genus Geosmithia. Chemical and 1H-NMR analyses of these polysaccharides revealed three different structures: (i) the polysaccharide from Geosmithia namylowskii was composed of β-(1[Formula: see text]5)-galactofuranose chains attached to an α-(1[Formula: see text]2)-(1[Formula: see text]6)-mannan core identical to that isolated in several species of Eupenicillium, (ii) the polysaccharide from Geosmithia viridis was a glucomannogalactan similar to that obtained in Talaromyces flavus, and (iii) the polysaccharide from Geosmithia putterillii contained β-(1[Formula: see text]5)-(1[Formula: see text]6)-galactofuranose with some units of the β-(1[Formula: see text]5) residues substituted at position O-6 by single residues of galactofuranose; this galactan was attached to an α-(1[Formula: see text]2)-(1[Formula: see text]6)-mannan core. The taxonomy of the genus is discussed according to the polysaccharides F1SS, and our results are compared with the results of rDNA analyses in this genus.Key words: Eurotiales, Geosmithia, Eupenicillium, Talaromyces, cell wall polysaccharides, chemotaxonomy.

scholarly journals Coccidioides immitis Vaccine: Potential of an Alkali-Soluble, Water-Soluble Cell Wall Antigen

1983 ◽  
Vol 39 (1) ◽  
pp. 473-475 ◽  
Author(s):  
Grace Lecara ◽  
Rebecca A. Cox ◽  
Russell B. Simpson
Keyword(s):  
Cell Wall ◽  
Water Soluble ◽  
Coccidioides Immitis ◽  
Soluble Cell ◽  
Vaccine Potential

An acidic water-soluble cell wall polysaccharide: a chemotaxonomic marker for Fusarium and Gibberella

2000 ◽  
Vol 104 (5) ◽  
pp. 603-610 ◽  
Author(s):  
O. Ahrazem ◽  
B. Gómez-Miranda ◽  
A. Prieto ◽  
I. Barasoaín ◽  
M. Bernabé ◽  
...  
Keyword(s):  
Cell Wall ◽  
Water Soluble ◽  
Cell Wall Polysaccharide ◽  
Acidic Water ◽  
Soluble Cell ◽  
Chemotaxonomic Marker

scholarly journals Characterization of two cell-wall polysaccharides from Fusicoccum amygdali

1971 ◽  
Vol 125 (2) ◽  
pp. 473-480 ◽  
Author(s):  
M. A. Obaidah ◽  
K. W. Buck
Keyword(s):  
Cell Wall ◽  
Sodium Hydroxide ◽  
Periodate Oxidation ◽  
Water Soluble ◽  
Methylation Analysis ◽  
Cell Wall Polysaccharides ◽  
Partial Acid Hydrolysis ◽  
Polysaccharide Fraction ◽  
Linear Chains ◽  
Soluble Polysaccharide

1. The nature of two polysaccharides (s020 values 6S and 2S respectively in 1m-sodium hydroxide), comprising a fragment (fraction BB, [α]D +236° in 1m-sodium hydroxide), previously isolated from cell walls of Fusicoccum amygdali, has been investigated. 2. Both the major (2S) and minor (6S) components were affected by incubation with α-amylase. The 6S polysaccharide was also attacked by exo-β-(1→3)-glucanase, which is evidence that it contained both α-(1→4)- and β-(1→3)-glucopyranose linkages. By fractionation of the products of α-amylase-treated fraction BB it was possible to obtain a water-insoluble polysaccharide, fraction P ([α]D +290° in 1m-sodium hydroxide, 67% of fraction BB) and a water-soluble polysaccharide, fraction Q ([α]D +16° in 1m-sodium hydroxide, 11% of fraction BB), both of which sedimented as single boundaries with s020 values (in 1m-sodium hydroxide) of 1.7S and 4.6S respectively. 3. Evidence from periodate oxidation, methylation analysis, i.r. spectroscopy and partial acid hydrolysis showed that fraction P consisted of linear chains of α-(1→3)-glucopyranose units with blocks of one or two α-(1→4)-glucopyranose units interspersed at intervals along the main chain. The 2S polysaccharide, from which fraction P is derived, evidently also contains longer blocks of α-(1→4)-glucopyranose units, that are susceptible to α-amylase action. 4. Fraction Q consisted of glucose (88%) with small amounts of galactose, mannose and rhamnose. Evidence from digestion with exo- and endo-β-(1→3)-glucanases, periodate oxidation and methylation analysis suggests that fraction Q consists of a branched galactomannorhamnan core, to which is attached a β-(1→3)-, β-(1→6)-glucan. In the cell wall, chains of α-(1→4)-linked glucopyranose units are linked to fraction Q to form the 6S component of fraction BB.

scholarly journals Soluble Cell Wall Polysaccharides Released from Pea Stems by Centrifugation

1981 ◽  
Vol 68 (3) ◽  
pp. 538-542 ◽  
Author(s):  
Maurice E. Terry ◽  
Bernard Rubinstein ◽  
Russell L. Jones
Keyword(s):  
Cell Wall ◽  
Cell Wall Polysaccharides ◽  
Soluble Cell
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