Plant Growth Promoting Rhizobacteria (PGPR): the bugs to debug the root zone

• Published in: Critical reviews in microbiology Vol. 36; no. 3; pp. 232 - 244
• Main Authors: Dutta, Swarnalee, Podile, Appa Rao
• Format: Journal Article
• Language: English
• Published: England Informa UK Ltd 01.08.2010; Taylor & Francis
• Subjects: Bacteria - drug effects; bacterial motility; Bacterial Physiological Phenomena - drug effects; PGPR; Plant Development; Plant Exudates - metabolism; Plant Exudates - pharmacology; Plant Roots - growth & development; Plant Roots - metabolism; Plant Roots - microbiology; Plants - metabolism; Plants - microbiology; quorum sensing; root colonization; root exudates; Soil Microbiology
• ISSN: 1040-841X; 1549-7828
• DOI: 10.3109/10408411003766806

Interaction of plant growth promoting rhizobacteria (PGPR) with host plants is an intricate and interdependent relationship involving not only the two partners but other biotic and abiotic factors of the rhizosphere region. Survival and establishment of PGPR in the rhizosphere is a major concern of agricultural microbiologists. Various factors that play a determining role include the composition of root exudates, properties of bacterial strain, soil status, and activities of other soil microbes. This review focuses on the different components that affect root colonization of PGPR and the underlying principles behind the success of these bugs to tide over the unfavorable conditions.