Antifungal Proteins and Other Mechanisms in the Control of Sorghum Stalk Rot and Grain Mold

Waniska, R. D. and Venkatesha, R. T. and Chandrashekar, A. and Krishnaveni, S. and Bejosano, F. P. and Jeoung, J. and Jayaraj, J. and Muthukrishnan, S. and Liang, G. H. (2001) Antifungal Proteins and Other Mechanisms in the Control of Sorghum Stalk Rot and Grain Mold. Journal of Agricultural and Food Chemistry, 49. pp. 4732-4742. ISSN 0021-8561

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Abstract

<p align="justify">Research on antifungal proteins and other mechanisms that provide the biochemical basis for hostplant resistance to stalk rot and grain molds is reviewed in this paper. Stalk rot caused by Fusarium species leads to substantial yield loss due to poor grain filling and/or lodging. A transgenic sorghum expressing high levels of chitinase exhibited less stalk rot development when exposed to conidia of F. thapsinum. Grain mold of sorghum is associated with warm humid environments and results from colonization by several fungi (F. thapsinum, Curvularia lunata, and Alternaria alternata) of the developing caryopsis. The roles of several biochemical mechanisms (tannins, phenolic compounds, red pericarp, proteins, hard endosperm, and antifungal proteins) on grain mold resistance are discussed. Resistance mechanisms related to these compounds appear to be additive, and pyramiding of genes is a feasible approach to limit grain deterioration. Several experimental approaches are proposed to extend current findings.</p>

Item Type:	Article
Uncontrolled Keywords:	Antifungal proteins; grain mold; stalk rot; fungal pathogens
Subjects:	600 Technology > 08 Food technology > 21 Cereals
Divisions:	Food Microbiology
Depositing User:	Food Sci. & Technol. Information Services
Date Deposited:	08 Jun 2005
Last Modified:	28 Dec 2011 09:24
URI:	http://ir.cftri.res.in/id/eprint/57

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