Proteins in developing sorghum endosperm that may be involved in resistance to grain moulds

Kumari, Sunitha R. ; Chandrashekar, A. ; Shetty, H. S. (1992) Proteins in developing sorghum endosperm that may be involved in resistance to grain moulds Journal of the Science of Food and Agriculture, 60 (3). pp. 275-282. ISSN 0022-5142

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Official URL: http://onlinelibrary.wiley.com/doi/10.1002/jsfa.27...

Related URL: http://dx.doi.org/10.1002/jsfa.2740600302

Abstract

The level and type of fungal infection on grains varying in hardness at different stages of development over two seasons has been studied. Hard grains showed less incidence of grain moulds than soft grains during development. Microscopic examination showed more intense deposition of protein bodies in hard than in the soft grains. The presence of fungal hyphae in the endosperm of soft grains and pitted starch granules was clearly visible microscopically. Extracts of immature and mature hard and soft endosperm were inhibitory to Fusarium moniliforme growth. These inhibitors were heat labile and non-dialysable indicating that protein factors may be involved. The activities of inhibitors to serine proteases were comparatively higher in endosperm of hard grains during development. The endosperm of hard grains contained more protein and prolamine than that of soft grains. A role for proteins in resistance of fungal infection in low tannin lines is presented.

Item Type:Article
Source:Copyright of this article belongs to John Wiley and Sons.
Keywords:Sorghum Endosperm Texture; Protein; Prolamine; Protease Inhibitors; Resistance to Fungi
ID Code:46644
Deposited On:05 Jul 2011 17:22
Last Modified:05 Jul 2011 17:22

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