Cloning and characterisation of a locus encoding an indolepyruvate decarboxylase involved in indole-3-acetic acid synthesis in Erwinia herbicola

Article Abstract:

The ipdC gene encodes an indolepyruvate decarboxylase (IpdC) which is involved in the synthesis of indole-3-acetic acid (IAA) in Erwinia herbicola 299R. The synthesis occurs via the indole-3-pyruvic acid pathway. IpdC catalyzes the conversion of indole-3-pyruvic acid to indole-3-acetaldehyde. The ipdC probe hybridizes with the genomic DNA of all E. herbicola strains. This indicates that the gene is conserved in this group.

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Spatial organization of dual-species bacterial aggregates onleaf surfaces

Article Abstract:

A study was conducted to determine if the spatial organization of bacterial cells within aggregates on leaves was influenced by the bacterial strains constituting an aggregate. The relevance of the results to understanding the ecology of bacterial interactions on leaf surfaces and the implications for biological control of pathogenic and other deleterious microorganisms was discussed.

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Role of leaf surface sugars in colonization of plants by bacterial epiphytes

Article Abstract:

The amount of sugar on the surface of a leaf determines how many bacteria will grow on the surface. The ability of bacteria to deplete sugars varies greatly, but some sugar always remains after bacterial colonization. This could be caused by various factors, including the diffusion of nutrients across the leaf surface.

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