Journal ArticleDOI
Oligosaccharins: structures and signal transduction.
François Côté,Michael G. Hahn +1 more
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TLDR
This research focused on the synthesis and accumulation of antimicrobial phytoalexins in response to microbial attack, and the active components in these extracts are commonly referred to as ‘elicitors’.Abstract:
Oligosaccharins are complex carbohydrates that can function in plants as molecular signals that regulate growth, development, and survival in the environment [3]. Studies of plant-microorganism interactions yielded the first evidence that oligosaccharins could serve as biological signals. Much of this research focused on the synthesis and accumulation of antimicrobial phytoalexins in response to microbial attack. Phytoalexin synthesis and accumulation are observed not only after microbial infection, but also after treatment of plant tissue with cell-free extracts of microbial origin. The active components in these extracts are commonly referred to as ‘elicitors’. The term ‘elicitor’ was originally used to refer to molecules and other stimuli that induce the synthesis and accumulation of phytoalexins in plant cells [130], but is now commonly used for molecules that stimulate any plant defense mechanism [68, 70, 71, 104].read more
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Chitosan as Antimicrobial Agent: Applications and Mode of Action
TL;DR: The current review of 129 references describes the biological activity of several chitosan derivatives and the modes of action that have been postulated in the literature.
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Pectins: structure, biosynthesis, and oligogalacturonide-related signaling.
TL;DR: The view of critical questions regarding pectin structure, biosynthesis, and function that need to be addressed in the coming decade are presented and new methods that may be useful to study localized pectins in the plant cell wall are described.
Journal ArticleDOI
Wound signalling in plants
TL;DR: Different jasmonic acid-dependent and -independent wound signal transduction pathways have been identified recently and partially characterized, and include reversible protein phosphorylation steps, calcium/calmodulin-regulated events, and production of active oxygen species.
Journal ArticleDOI
Cell‐wall carbohydrates and their modification as a resource for biofuels
Markus Pauly,Kenneth Keegstra +1 more
TL;DR: The main bottleneck for using wall materials is the recalcitrance of walls to efficient degradation into fermentable sugars as mentioned in this paper, which makes it difficult to use wall materials in the production of biofuel.
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Receptor-Mediated Monitoring of Tissue Well-Being Via Detection of Soluble Heparan Sulfate by Toll-Like Receptor 4
TL;DR: The findings suggest that Toll-like receptors in vertebrates may monitor tissue well-being by recognizing fragments of endogenous macromolecules.
References
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Journal ArticleDOI
Biological interactions between polysaccharides and divalent cations: The egg‐box model
TL;DR: It is shown that spedfic binding of divalent cations to a polysaechafide polyelectro]ym, leading firm cohesion between the chains, can cause characteristic effects in the c~rcutar diehroism spectrum which are understandabb in terms of modem theo~, [ l ].
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Antifungal Hydrolases in Pea Tissue II. Inhibition of Fungal Growth by Combinations of Chitinase and β-1,3-Glucanase
TL;DR: Chitinase and β-1,3-glucanase purified from pea pods have been shown to act synergistically in the degradation of fungal cell walls.
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Biochemistry of endotoxins.
TL;DR: Interaction of LPS with Polyvalent Cations and the Inner Core: Interaction of Chemotypes and the Outer Core.
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Plant chitinases are potent inhibitors of fungal growth
TL;DR: It is reported here that the main proteinaceous inhibitor of fungal growth in bean leaves is chitinase, an enzyme that can be induced by the plant hormone ethylene, or by pathogen attack.