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Induced Systemic Resistance for the Management of Rice Fungal Diseases

  • P. Vidhyasekaran
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Abstract

Plants are endowed with several defense genes. They are found in both susceptible and disease-resistant plants. They are involved in production of antimicrobial compounds like phenolics, phytoalexins and pathogenesis-related proteins or involved in reinforcement of plant cell wall by accumulating hydroxyproline-rich glycoproteins, callose, lignin and wall bound phenolics (Vidhyasekaran, 1993, 1997, 1988a, b). These defense genes are quiescent in healthy plants. Both biotic and abiotic signals can activate these genes (Baker et al., 1997). Early and increased expression of these genes can induce systemic resistance in plants against various pathogens. This type of resistance is termed systemic acquired resistance (SAR) (Ward et al.,1991). Technologies have been developed to manage various crop diseases exploiting SAR and the present paper critically analyses the possibility of managing rice diseases by exploiting SAR.

Keywords

Salicylic Acid Jasmonic Acid Fusarium Wilt Systemic Resistance Active Oxygen Species 
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© Springer Science+Business Media Dordrecht 2001

Authors and Affiliations

  • P. Vidhyasekaran
    • 1
  1. 1.Department of Plant PathologyTamilnadu Agricultural UniversityCoimbatoreIndia

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