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1. Developmentally regulated conversion of surface-exposed chitin to chitosan in cell walls of plant pathogenic fungi

Author:
El Gueddari, N.E.; Rauchhaus, U.; Moerschbacher, B.M.; Deising, H.B.
Source:
New phytologist 2002 v.156 no.1 pp. 103-112
ISSN:
0028-646X
Subject:
Puccinia graminis; Uromyces viciae-fabae; Glomerella graminicola; biological development; cell walls; chitin; chitosan; immunocytochemistry; host plants; infection; plant cuticle; hyphae; cell wall components
DOI:
10.1046/j.1469-8137.2002.00487.x

2. Differential induction of lipoxygenase isoforms in wheat upon treatment with rust fungus elicitor, chitin oligosaccharides, chitosan, and methyl jasmonate

Author:
Bohland, C.; Balkenhohl, T.; Loers, G.; Feussner, I.; Grambow, H.J.
Source:
Plant physiology 1997 v.114 no.2 pp. 679-685
ISSN:
0032-0889
Subject:
protein synthesis; dose response; chitosan; seedlings; jasmonic acid; linoleate 13S-lipoxygenase; Puccinia graminis; Triticum aestivum; leaves; plant pathogenic fungi; oligosaccharides; chitin; enzyme activity; isozymes; protein composition
Abstract:
... A glycopeptide elicitor prepared from germ tubes of the rust fungus Puccinia graminis Pers. f. sp. tritici Erikss. & Henn (Pgt),as well as chitin oligosaccharides, chitosan, and methyl jasmonate (MJ) stimulated lipoxygenase (LOX) activity (E.C. 1.13.11.12) in wheat (Triticum aestivum) leaves. Immunoblot analysis using anti-LOX antibodies revealed the induction of 92- and 103-kD LOX species after P ...

3. Enzymatic Production and Enzymatic-Mass Spectrometric Fingerprinting Analysis of Chitosan Polymers with Different Nonrandom Patterns of Acetylation

Author:
Jasper Wattjes; Anna Niehues; Stefan Cord-Landwehr; Janina Hoßbach; Laurent David; Thierry Delair; Bruno M. Moerschbacher
Source:
Journal of the American Chemical Society 2019 v.141 no.7 pp. 3137-3145
ISSN:
1520-5126
Subject:
Pestalotiopsis; Podospora anserina; Puccinia graminis; acetylation; bioactive properties; biopolymers; chemical analysis; chitin; chitosan; enzymes; fungi; mass spectrometry; nuclear magnetic resonance spectroscopy; polymerization
Abstract:
... Chitosans, a family of ß-(1,4)-linked, partially N-acetylated polyglucosamines, are considered to be among the most versatile and most promising functional biopolymers. Chemical analysis and bioactivity studies revealed that the functionalities of chitosans strongly depend on the polymers’ degree of polymerization and fraction of acetylation. More recently, the pattern of acetylation (PA) has been ...
DOI:
10.1021/jacs.8b12561