Results 11 to 20 of about 4,781 (194)

Expanding the Biological Role of Lipo-Chitooligosaccharides and Chitooligosaccharides in Laccaria bicolor Growth and Development [PDF]

Frontiers in Fungal Biology, 2022
The role of lipo-chitooligosaccharides (LCOs) as signaling molecules that mediate the establishment of symbiotic relationships between fungi and plants is being redefined.
Manuel I. Villalobos Solis, Nancy L. Engle, Margaret K. Spangler, Margaret K. Spangler, Sylvain Cottaz, Sébastien Fort, Junko Maeda, Junko Maeda, Jean-Michel Ané, Jean-Michel Ané, Timothy J. Tschaplinski, Jesse L. Labbé, Robert L. Hettich, Paul E. Abraham, Tomás A. Rush   +14 more
doaj   +4 more sources

Enzymatic Modifications of Chitin, Chitosan, and Chitooligosaccharides [PDF]

Frontiers in Bioengineering and Biotechnology, 2019
Chitin and its N-deacetylated derivative chitosan are two biological polymers that have found numerous applications in recent years, but their further deployment suffers from limitations in obtaining a defined structure of the polymers using traditional ...
Michal Benedykt Kaczmarek, Michal Benedykt Kaczmarek, Katarzyna Struszczyk-Swita, Xingkang Li, Miroslawa Szczęsna-Antczak, Maurycy Daroch   +5 more
doaj   +3 more sources

Bioproduction of Chitooligosaccharides: Present and Perspectives [PDF]

Marine Drugs, 2014
Chitin and chitosan oligosaccharides (COS) have been traditionally obtained by chemical digestion with strong acids. In light of the difficulties associated with these traditional production processes, environmentally compatible and reproducible ...
Woo-Jin Jung, Ro-Dong Park
doaj   +3 more sources

Snustorr Defines Cuticle Elasticity in Drosophila melanogaster. [PDF]

Arch Insect Biochem Physiol
Sir Wigglesworth postulated that insect cuticle hardening depended on the incorporation of lipids into the upper parts of the cuticle. We show that the delivery of these lipids needed for cuticle hardening requires the ABC transporter Snu in the fruit fly Drosophila melanogaster larva.
Kovalev A, Gorb S, Moussian B.
europepmc   +2 more sources

A GmNRF5a-GmCERK1-GmCAK1 module mediates chitin/chitosan-triggered immune response in soybean. [PDF]

J Integr Plant Biol
In soybeans, the GmNFR5a‐GmCERK1‐GmCAK1 module regulates immune responses triggered by chitin oligosaccharides and chitosan oligosaccharides from fungal pathogens. This reveals a shared upstream signaling mechanism for distinct microbial patterns and provides valuable genetic targets for improving broad‐spectrum disease resistance in crops.
Sun G, Chen J, Li T, Zhu Q, Li X, Mi X, Wang W, Zhang Z, Huang K, Yao R, Yang B, Ye W, Duan K, Ma Z, Yu K, Wang Y, Dong S, Wang Y, Yin H, Wang Y.   +19 more
europepmc   +2 more sources

Advances in chitooligosaccharides chemical modifications [PDF]

Biopolymers, 2021
AbstractChitooligosaccharides (COS) differ from chitosan by their molar mass: those of COS are defined to be lower than 20 kg mol−1. Their functionalization is widely described in the literature and leads to the introduction of new properties that broaden their application fields.
Chapelle, Camille, David, Ghislain, Caillol, Sylvain, Negrell, Claire, Desroches Le Foll, Myriam   +4 more
openaire   +2 more sources

Crab-Eating Monkey Acidic Chitinase (CHIA) Efficiently Degrades Chitin and Chitosan under Acidic and High-Temperature Conditions

Molecules, 2022
Chitooligosaccharides, the degradation products of chitin and chitosan, possess anti-bacterial, anti-tumor, and anti-inflammatory activities. The enzymatic production of chitooligosaccharides may increase the interest in their potential biomedical or ...
Maiko Uehara, Chinatsu Takasaki, Satoshi Wakita, Yasusato Sugahara, Eri Tabata, Vaclav Matoska, Peter O. Bauer, Fumitaka Oyama   +7 more
doaj   +1 more source

Antifungal Agent Chitooligosaccharides Derived from Solid-State Fermentation of Shrimp Shell Waste by Pseudonocardia antitumoralis 18D36-A1

Fermentation, 2022
Shrimp shell waste is a potential source of the biopolymer chitin. Through fermentation, chitin can be converted into its derivative products. This study aimed to isolate and characterize the products of the biodegradation of chitin from shrimp shell ...
Widyastuti Widyastuti, Fendi Setiawan, Chasya Al Afandy, Arik Irawan, Aspita Laila, Ni Luh Gede Ratna Juliasih, Wawan Abdullah Setiawan, Masayoshi Arai, John Hendri, Andi Setiawan   +9 more
doaj   +1 more source

ARTP Mutagenesis Improves the Production of Chitosanase in Bacillus cereus

Shipin gongye ke-ji, 2022
Atmospheric and room temperature plasma(ARTP) Bacillus cereus was used to screen the strains with increased enzyme activity. The results showed that culturing Bacillus cereus in the seed solution for 6 hours could reach the middle and late logarithmic ...
Chaozheng ZHANG, Yi LI, Hua ZHAO
doaj   +1 more source

Quantification of chitooligosaccharides by FACE method: Determination of combinatory effects of mouse chitinases

MethodsX, 2020
Fluorophore-assisted carbohydrate electrophoresis (FACE) enables detection and quantification of degradation products from artificial and natural chitin substrates such as 4-NP-(GlcNAc)2, (GlcNAc)4 and colloidal chitin.
Masahiro Kimura, Takatoshi Umeyama, Satoshi Wakita, Kazuaki Okawa, Masayoshi Sakaguchi, Vaclav Matoska, Peter O. Bauer, Fumitaka Oyama   +7 more
doaj   +1 more source