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Phytoalexins

phytoalexin

(Science: protein) toxic compounds produced by higher plants in response to attack by pathogens and to other stresses. Sometimes referred to as plant antibiotics, but rather non-specific, having a general fungicidal and bacteriocidal action.

Very much analogous to an antibody response as production is triggered by elicitors.

Examples include: pisatin, phaseolin.


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Phytoalexins

Does anyone know publications that say something about the production of phytoalexins by virus-infected plant cells? I've searched the internet, and all the information I got are about the synthesis of phytoalexins by plants infected by bacteria or fungi. I've ...

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by HELISA
Sun Sep 23, 2007 9:22 pm
 
Forum: Botany Discussion
Topic: Phytoalexins
Replies: 0
Views: 1028

The Fiber Disease

... here is a good one! 1: Ciba Found Symp. 1990;154:140-53; discussion 153-6. Related Articles, Links Phytoalexins as part of induced defence reactions in plants: their elicitation, function and metabolism. Barz W, Bless W, Borger-Papendorf G, Gunia ...

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by London
Sun Oct 01, 2006 8:50 pm
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 2315050

The Fiber Disease

... to trans-cinnamic acid and the enzyme is ubiquitous in plants, where it is involved in the production of phenylpropanoids such as lignin and phytoalexins. However, this is the first report of PAL activity in a member of the Proteobacteria.

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by London
Thu Apr 20, 2006 6:26 pm
 
Forum: Human Biology
Topic: The Fiber Disease
Replies: 7403
Views: 2315050


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