DIATOM EXTRACELLULAR POLYMERIC SUBSTANCES: FUNCTION, FINE STRUCTURE, CHEMISTRY, AND PHYSIOLOGY
Extracellular Matrix Assembly in Diatoms (Bacillariophyceae) (I. A Model of Adhesives Based on Chemical Characterization and Localization of Polysaccharides from the Marine Diatom Achnanthes longipes…
A model for diatomcell adhesive structure was developed from chemical characterization, localization, and microscopic observation of extracellular adhesive components formed during the diatom cell-attachment process.
EXTRACELLULAR MATRIX ASSEMBLY IN DIATOMS (BACILLARIOPHYCEAE). V. ENVIRONMENTAL EFFECTS ON POLYSACCHARIDE SYNTHESIS IN THE MODEL DIATOM, PHAEODACTYLUM TRICORNUTUM 1
The increased deoxy‐ and O‐methylated sugar content under unfavorable environments enhances the hydrophobicity of the polymers, whereas the anionic components may play important roles in ionic cross‐linking, suggesting that these changes could ameliorate the effects of salinity or P‐stress.
Significance of diatom-derived polymers in carbon flow dynamics within estuarine biofilms determined through isotopic enrichment
Coupled pulse-chase isotopic labeling and simultaneous tracking of 13 C in poly- saccharides and PLFAs directly demonstrated the flow of carbon between biofilm autotrophs and het- erotrophic bacteria and the significance of diatom-derived carbohydrates in this exchange.
Dynamics of extracellular polymeric substance (EPS) production and loss in an estuarine, diatom‐dominated, microalgal biofilm over a tidal emersio—immersion period
We studied patterns of production and loss of four different extracellular polymeric substance (EPS) fractions— colloidal carbohydrates, colloidal EPS (cEPS), hot water (HW)‐extracted and hot…
Biofilm polymers: relationship between carbohydrate biopolymers from estuarine mudflats and unialgal cultures of benthic diatoms
Comparing monosaccharide composition of extracts generated using the same protocol, natural assemblages showed close relationships with unialgal cultures, confirming the important role of diatom-derived polymers in mudflat ecology.
MOVEMENT MODALITIES AND RESPONSES TO ENVIRONMENTAL CHANGES OF THE MUDFLAT DIATOM CYLINDROTHECA CLOSTERIUM (BACILLARIOPHYCEAE) 1
The movement responses of C. closterium in response to environmental changes, accompanied by modifications in EPS, may form part of an adaptive strategy to survive in mudflats and could be useful as bioindicators of environmental changes.
The structure and biochemistry of charophycean cell walls: I. Pectins of Penium margaritaceum
This paper explores wall evolutionary history by studying the incorporation of pectin polymers into cell walls of the model organism Penium margaritaceum, a simple single-cell desmid, and the patterning of HGA deposition provides interesting insights into the complex process of pECTin involvement in the development of the plant cell wall.
The extracellular polymeric substances of desmids (Conjugatophyceae, Streptophyta): chemistry, structural analyses and implications in wetland biofilms
Desmid EPS exhibits a conserved motif with the predominant component an anionic polysaccharide, and the presence of deoxy-sugar subunits indicates the potential for hydrophobic interaction where anionic components may play important role in ionic cross-linking.
Extracellular Matrix Assembly in Diatoms (Bacillariophyceae) (II. 2,6-Dichlorobenzonitrile Inhibition of Motility and Stalk Production in the Marine Diatom Achnanthes longipes)
Inhibition of adhesion by DCB and its analogs provides evidence of a direct relationship between polysaccharide synthesis and motility and permanent adhesion in the marine diatom Achnanthes longipes.