Summary
Intensive screening, of soil microbial cultures for agglutinating activity ofAgrobacterium tumefaciens resulted in the discovery of a bacterium,Xanthobacter sp. KB-3001, which produced an agglutinin ofA. tumefaciens. This compound is an acidic polysaccharide consisting of glucose and galacturonic acid in the ratio 4∶1. This compound assists the attachment ofA. tumefaciens to plant cells and promotes crown gall formation, owing to its affinity to bothA. tumefaciens and plant cells.
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Kawai, S., Kobayashi, A. & Kawazu, K. A bacterial extracellular polysaccharide which enhances the attachment, ofAgrobacterium tumefaciens to the plant cell surface. Experientia 45, 201–202 (1989). https://doi.org/10.1007/BF01954877
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DOI: https://doi.org/10.1007/BF01954877