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Selective retention of Beijerinckia on cotton leaf may be due to a lectin-like factor

Murty, MG (1983) Selective retention of Beijerinckia on cotton leaf may be due to a lectin-like factor. In: FEMS Microbiology Letters, 18 (1-2). pp. 143-148.

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Abstract

Cotton leaf surfaces showed selective adhesion of Beijerinckia. The leaf ext. showed hemagglutination activity with various types of red blood cells (highest with human blood group O and lowest with guinea pig blood), which suggested the presence of agglutinins. The agglutinating factor of the leaf was apparently trypsin sensitive, nondialyzable, resistant to high temps. (90), and inactive at pH <5.0. Inoculation of cotton leaf surfaces with Azotobacter chroococcum, A. vinelandii, and Beijerinckia resulted in the disappearance of Azotobacter species within 4 days. Inoculated Beijerinckia persisted (>30 days) with a gradual population decline, whereas the native population remained virtually const. Agglutination of Beijerinckia with leaf exts. occurred only during the early stationary to stationary phase of bacterial growth and was correlated with bacterial capsule formation. Of the simple sugars examined only D- and L-fructose weakly (<50%) inhibited the leaf ext.-mediated agglutination of the bacteria.

Item Type: Journal Article
Additional Information: Copyright of this article belongs to Blackwell Publishing
Department/Centre: Division of Biological Sciences > Microbiology & Cell Biology
Date Deposited: 24 Jun 2008
Last Modified: 27 Aug 2008 13:28
URI: http://eprints.iisc.ernet.in/id/eprint/14405

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