Evidence for the involvement of exposed surface carbohydrates of Agrobacterium tumefaciens in relation to crown gall tumour induction.
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Date
1983-12
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Abstract
The exposed carbohydrate residues on the cell surface of both tumourigenic
and nontumourigenic strains of Agrobacterium have been investigated using lectins as
probes. N-acetyl-D-galactosamine and β-D-galactose were found to be present as the
exposed groups on the cell surfaces of he Agrobacterium strains. These carbohydrate
residues are attached to lipids on the outer membrane of the bacteria as lipopolysaccharides.
Fluorescently labelled lectins were used to observe bacterial agglutination in
fluorescence microscope. The involvement of these exposed carbohydrate groups in
host-pathogen interaction was demonstrated by actual inhibition of tumour initiation at
wound sites on host plant.
Description
Keywords
β-D-Galactose, N-acetyl-D-galactosamine polygalacturonate, adherence, lectin binding, tumour inhibition (Agrobacterium tumefaciens)
Citation
Banerjee Debabrata, Tiwari Raj, Basu Mitali, Chatterjee Gora Chand. Evidence for the involvement of exposed surface carbohydrates of Agrobacterium tumefaciens in relation to crown gall tumour induction. Journal of Biosciences. 1983 Dec; 5(suppl_1): s53-s59.