phytoalexin


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Related to phytoalexin: aposematic coloration

phytoalexin

(ˌfaɪtəʊəˈlɛksɪn)
n
(Botany) botany any of a group of substances produced by plants that inhibit the growth of pathogenic fungi that infect them
[C20: from phyto- + Greek alexein to ward off]

phy•to•a•lex•in

(ˌfaɪ toʊ əˈlɛk sɪn)

n.
any of a class of plant compounds that accumulate at the site of invading microorganisms and confer resistance to disease.
[1945–50; phyto- + alexin an immunological complement (< Greek aléx(ein) to ward off + -in1)]
References in periodicals archive ?
These include hydrogen-peroxide-mediated cell wall linkages, chitinase, [beta]-1,3-glucanase and thaumatin proteins, phytoalexin accumulation and detoxification and glutathione S-transferase (Cho et al.
Effect of glyceollin, a soybean phytoalexin, onfeeding by three phytophagous beetles (Coleoptera: Coccinelidae and Chrysomelidae): dose versus response.
The Phytopathogenic fungus Alternaria brassicicola: Phytotoxin production and phytoalexin elicitation.
The antifungal action of plant defensin could be linked with synthesis of phytoalexin and lignin due to induction of systemic resistance in plants.
Resveratrol (trans-3,5,4'-trihydroxystilbene), a polyphenolic phytoalexin synthesized in nearly 70 plant species, is found to be particularly abundant in Vitis vinifera (grape vine) and its derivatives (e.
Siemann EH, Creasy LL (1992) Concentration of the Phytoalexin Resveratrol in Wine.
leia-se: "This gap can be explained by the lack either elicitors, biotic or abiotic, as specific genes that regulates the expression/activation of components of the metabolic pathways necessary for obtaining the phytoalexin molecule.
2003) observed that some herbicides influence the diseases severity, inducing or inhibitting the phytoalexin synthesis.
Resveratrol, a polyphenol phytoalexin, protects against doxorubicin-induced cardiotoxicity.
Resveratrol (a phytoalexin synthesized by some plants) and epicatechin (a green tea extract) are considered new treatment modalities for ROP.
Cancer chemopreventive activity of brassinin, a phytoalexin from cabbage.