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Disease and pest resistance in grains of sorghum and millets

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Relation http://ir.cftri.com/525/
JCS_01_06
 
Title Disease and pest resistance in grains of sorghum and millets
 
Creator Chandrashekar, A.
Satyanarayana, K. V.
 
Subject 21 Cereals
26 Pesticide Chemistry
 
Description In this review available information on the mechanisms of resistance to insect pests and fungal pathogens in sorghum and millets is discussed. The primary source of resistance lies in the chemical and physical make up of the grain. Phenolic compounds such as ferulic acid and tannins present in some sorghums are potent inhibitors of pests and pathogens. Grain hardness is a major deterrent to infection
and infestation in low tannin grains. The prolamins, the grain storage proteins of sorghum, are organized into protein bodies and provide a physical and a nutritional barrier since they are resistant to digestion by insect and fungal proteases. A plethora of proteins that belong
to the ‘pathogenesis related protein’ group are distributed in various parts of the grain. Some of them are located in protein bodies. Notwithstanding, sorghum is still susceptible to insect pests and fungal pathogens. An understanding of the natural mechanisms of resistance in the grain is paramount for the development of durable resistance against pests and pathogens. The pyramiding of resistance genes and the development of transgenic lines based on this understanding are two sources of hope for the future protection of sorghum and millets.
 
Date 2006-08
 
Type Article
PeerReviewed
 
Format application/pdf
 
Language en
 
Rights —
 
Identifier http://ir.cftri.com/525/1/JCS_44_3.pdf
Chandrashekar, A. and Satyanarayana, K. V. (2006) Disease and pest resistance in grains of sorghum and millets. Journal of Cereal Science, 44. pp. 267-304.