Journal
ANNUAL REVIEW OF PHYTOPATHOLOGY
Volume 41, Issue -, Pages 429-453Publisher
ANNUAL REVIEWS
DOI: 10.1146/annurev.phyto.41.022103.134521
Keywords
microbial aggregates; phyllosphere; rhizosphere; aerosols; biological control
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Bacteria associated with plants have been observed frequently to form assemblages referred to as aggregates, microcolonies, symplasmata, or biofilms on leaves and on root surfaces and within intercellular spaces of plant tissues. In a wide range of habitats, biofilms are purported to be microniches of conditions markedly different from those of the ambient environment and drive microbial cells to effect functions not possible alone or outside of biofilms. This review constructs a portrait of how biofilms associated with leaves, roots and within intercellular spaces influence the ecology of the bacteria they harbor and the relationship of bacteria with plants. We also consider how biofilms may enhance airborne dissemination, ubiquity and diversification of plant-associated bacteria and may influence strategies for biological control of plant disease and for assuring food safety.
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