Rheynoutria sachalinensis

There are two kinds of SAR activator biotic and abiotic. Biotic activators include extracts from plants and microbes. For example, excellent control of powdery mildews was observed by application of extract of Rheynoutria sachalinensis the extracts from Bacillus subtilis have been shown to induce resistance in barley, especially against powdery mildew. It was reported that some plant growth-promoting rhizobacteria may be able to protect plants from foliar diseases when used as a seed treatment or by seed soaking. A strain of Pseudomonas was found to be able to protect cucumber against broad spectrum of diseases. Chitosan and laminarin are two typical resistance-related biotic molecules. Biotic plant activators harpin and ComCat have been commercialized. 

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See also in sourсe #XX -- [ ]

See also in sourсe #XX -- [ ]

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