Topic
Chitin
About: Chitin is a research topic. Over the lifetime, 6590 publications have been published within this topic receiving 253993 citations.
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TL;DR: Overall, a platform has been developed for the surface modification of chitin fibers that provides both the physical properties ofChitin and the functional properties of Chitosan, resulting in an advanced material from a biorenewable resource with reduced chemical input.
124 citations
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TL;DR: The high antitumour effect of low molecular weight of chitin was established and the specific cytotoxic effects of Chitin and derivatives to tumour cell lines was demonstrated.
124 citations
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TL;DR: From a hydrothermal vent site off the Mexican west coast, a novel, hyperthermophilic, anaerobic archaeum was isolated, representing a new species,Thermococcus chitonophagus, using chitin, yeast extract, meat extract, and peptone for growth.
Abstract: From a hydrothermal vent site off the Mexican west coast (20°50′N, 109°06′W) at a depth of 2,600 m, a novel, hyperthermophilic, anaerobic archaeum was isolated. Cells were round to slightly irregular cocci, 1.2–2.5 μm in diameter and were motile by means of a tuft of flagella. The new isolate grew between 60 and 93°C (optimum: 85°C), from pH 3.5 to 9 (optimum: pH 6.7), and from 0.8 to 8% NaCl (optimum: 2%). The isolate was an obligate organotroph, using chitin, yeast extract, meat extract, and peptone for growth. Chitin was fermented to H2, CO2, NH3, acetate, and formate. H2S was formed in the presence of sulfur. The chitinoclastic enzyme system was oxygen-stable, cell-associated, and inducible by chitin. The cell wall was composed of a surface layer of hexameric protein complexes arranged on a p6 lattice. The core lipids consisted of glycerol diphytanyl diethers and acyclic and cyclic glycerol diphytanyl tetraethers. The G+C content was 46.5 mol%. DNA/DNA hybridization and 16S rRNA sequencing indicated that the new isolate belongs to the genusThermococcus, representing a new species,Thermococcus chitonophagus. The type strain is isoalte GC74, DSM 10152.
124 citations
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TL;DR: In this laboratory-scale study, chitin and chitosan flakes obtained from shrimp wastes as carrier material for a hydrocarbon-degrading bacterial strain showed the best performance during storage and seawater bioremediation.
124 citations
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TL;DR: The level of chitin-induced gene expression of the lectin-like protein and AtMPK3 was not significantly changed in mutants blocked in the jasmonic acid (JA, jar1)-, ethylene (ein2)-, or salicylic acid (SA, pad4, npr1, and eds5)-dependent pathway, and expression of mRNA for the zinc finger protein was reduced in the mutants affected in the JA- or SA-dependent pathway.
Abstract: Three genes (i.e., a zinc finger protein, a lectin-like protein, and AtMPK3), previously shown to respond to chitin elicitation in microarray experiments, were used to examine the response of Arabi...
124 citations