Ulvans as activators of plant defense and resistance...

Drug – bio-affecting and body treating compositions – Extract or material containing or obtained from an alga as...

Reexamination Certificate

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Reexamination Certificate

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07820176

ABSTRACT:
The present invention relates to the use of ulvans, in particular extracted from green algae of the genusUlvaorEnteromorpha, or of ulvan-derived oligosaccharides, as activators of plant defense and resistance reactions against biotic or abiotic stresses.It also relates to a plant-protection product containing ulvans and to the uses thereof in a plant treatment method.

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Lahaye, M. et al. Journal of Applied Phycology (1993); 5: 195-200. Chemical and physical-chemical characteristics of dietary fibres fromUlva lactuca(L.) Thuret andEntermorpha compressa(L.) Grev.
Sekar, R et al. Phykos (1995), 34(1-2): 49-53. Effect of seaweed liquid fertilizer fromUlva lactucaL. onVigna unguiculataL. (Walp.).
Ahilan, M. et al. Seafood Export J (1990), 22(9-10): 23-25. Seaweed, is it really useful?
Bi et al., “Studies on Aqueous Extracts of Three Green Algae as an Elicitor of Plant Defence Mechanism”Pak. J. Bot.vol. 31 No. 1 pp. 193-198 (1999).
Paradossi et al., “A Conformational Study on the Algal Polysaccharide Ulvan” Macromolecules. vol. 35 pp. 6404-6411 (2002).
Lahaye et al., “Chemical Characteristics of Insoluble Glucans From the Cell Wall of the Marine Green AlgaUlva lactuca(L.) Thuret” Carbohydrate Research. vol. 262 pp. 115-125 (1994).

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