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Plant pathogen interactions: crop improvement under adverse conditions

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Title Plant pathogen interactions: crop improvement under adverse conditions
 
Creator Kumar, Kamal
Verma, Praveen K.
 
Subject Crop Improvement
Plant Pathogen Interactions
 
Description Accepted date: 26 October 2012
Alleviating the crop loss due to biotic stress is the primary aim of plant biologists to achieve sustainable evergreen revolution in order to feed rapidly growing population. In nature, continuous evolution of plants while interacting with pathogens has generated a complex immune system that consists of preformed barriers and induced responses. The induced responses are further subdivided based upon the recognition of microbe-associated molecular patterns and effectors produced by pathogens; however, overlap exists between the downstream signaling pathways. In last decade, great deal of information about molecular aspects of plant–pathogen interactions has been generated which can be utilized for improving crops through genetic manipulation. Plant breeding has helped in the isolation of species-specific resistance components (R genes) from many plants. The molecular breeding techniques have also helped in pyramiding several components to a single variety, especially QTLs responsible for plant resistance, high yield, and nutritional quality. The identification of nonhost components in model plants and incorporation of genetically modified crops in our cropping system have raised hopes that nonhost resistance can be utilized for generating broad-spectrum pathogen tolerance breaking the barriers of species level resistance. This chapter describes the recent molecular aspects of plant–pathogen interactions focusing on the nonhost resistance components. Additionally, strategies like specific regulation of induced defense responses, manipulation of susceptibility factors, and host-induced gene silencing (HIGS) are discussed. The development of GM crops using such strategies will help in generating higher yields against pathogen infestations.
This work is supported partially by research grant provided by Department
of Biotechnology, Government of India and National Institute of Plant Genome Research, New
Delhi. We acknowledge Dr. K. D. Srivastava, Indian Agricultural Research Institute, New Delhi
for valuable suggestions and critically editing the manuscript. K.K. acknowledges NIPGR for
postdoctoral fellowship.
 
Date 2015-11-05T08:56:26Z
2015-11-05T08:56:26Z
2013
 
Type Article
 
Identifier In: Tuteja N, Gill SS (eds), Plant Acclimation to Environmental Stress. Springer Science, New York, USA, pp 433-459
978-1-4614-5001-6
http://172.16.0.77:8080/jspui/handle/123456789/328
http://link.springer.com/chapter/10.1007/978-1-4614-5001-6_16
10.1007/978-1-4614-5001-6_16
 
Language en_US
 
Publisher Springer