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- Title
Induced resistance: helping plants to help themselves.
- Authors
Walters, Dale; Newton, Adrian; Lyon, Gary
- Abstract
This article focuses on induced resistance properties of plants against pathogens. Observations made over a century ago suggested that plants already infected by a pathogen became more resistant to subsequent infection. Although these observations were virtually ignored for more than 50 years, today they form the basis of a new approach to controlling plant diseases that could revolutionize crop protection. Based on several researches, it is reported that, in the course of evolution, plants have developed a complex array of mechanisms involving recognition, attack and defense, in order to protect themselves against potential microbial pathogens. Early in the interaction between the plant and the pathogen, elicitor molecules are released. These elicitor molecules can be of plant or pathogen origin and include carbohydrate polymers, lipids, glycopeptides and glycoproteins. The defenses triggered from these molecules, suggestively, can include production of reactive oxygen species, biosynthesis of antimicrobial chemicals called phytoalexins, reinforcement of the plant cell wall, and accumulation of various pathogenesis-related proteins, some of which possess antimicrobial properties.
- Subjects
MOLECULAR biology; DISEASE resistance of plants; PHYTOPATHOGENIC microorganisms; PLANT disease etiology; PEPTIDE antibiotics; PLANT defenses; PLANT disease research; PLANT immunology
- Publication
Biologist, 2005, Vol 52, Issue 1, p28
- ISSN
0006-3347
- Publication type
Article