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Mar. Drugs 2010, 8(4), 968-987; doi:10.3390/md8040968

Chitosan in Plant Protection

1 University of Manitoba, Department of Plant Science, 222, Agriculture Building, Winnipeg, Manitoba, R3T 2N2, Canada 2 Laboratoire de Biotechnologies, Protection et Valorisation des Ressources Végétales (Biotec-VRV), Faculté des Sciences Semlalia, B.P. 2390, 40 000, Marrakech, Morocco
* Author to whom correspondence should be addressed.
Received: 12 March 2010 / Revised: 24 March 2010 / Accepted: 29 March 2010 / Published: 30 March 2010
(This article belongs to the Special Issue Marine Chitin and Chitosan)
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Chitin and chitosan are naturally-occurring compounds that have potential in agriculture with regard to controlling plant diseases. These molecules were shown to display toxicity and inhibit fungal growth and development. They were reported to be active against viruses, bacteria and other pests. Fragments from chitin and chitosan are known to have eliciting activities leading to a variety of defense responses in host plants in response to microbial infections, including the accumulation of phytoalexins, pathogen-related (PR) proteins and proteinase inhibitors, lignin synthesis, and callose formation. Based on these and other proprieties that help strengthen host plant defenses, interest has been growing in using them in agricultural systems to reduce the negative impact of diseases on yield and quality of crops. This review recapitulates the properties and uses of chitin, chitosan, and their derivatives, and will focus on their applications and mechanisms of action during plant-pathogen interactions.
Keywords: chitin; chitosan; biocidal activity; plant defenses; resistance; biological control chitin; chitosan; biocidal activity; plant defenses; resistance; biological control
This is an open access article distributed under the Creative Commons Attribution License (CC BY) which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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El Hadrami, A.; Adam, L.R.; El Hadrami, I.; Daayf, F. Chitosan in Plant Protection. Mar. Drugs 2010, 8, 968-987.

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