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Plant Growth-Promoting Bacteria: Fundamentals and Exploitation

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Bacteria in Agrobiology: Crop Ecosystems

Abstract

Many plant-beneficial rhizobacteria have been described in the literature. These have been isolated from the plant root, where they usually live under conditions of nutrient starvation and at a low pH. In order to be beneficial, they usually need to colonize the root efficiently. Moreover, they have to multiply fast in order to be competitive with other organisms. To this end, traits such as chemotaxis to, and fast utilization of, the nutrients secreted by the root are required. These nutrients mainly consist of organic acids and sugars. Some plant-beneficial bacteria promote plant growth directly, e.g., by making nutrients available to the plant or by stimulating the growth of plants by production of hormones. Other plant-beneficial bacteria stimulate plant growth indirectly, e.g., by degrading environmental pollutants which inhibit plant growth or by controlling the growth of pathogens.

Commercialization of microbes is a complex and long-lasting process. Firstly, industry must see opportunities for making a profit. Secondly, the bacterium as well as the final product must be efficient and safe with respect to humans, animals, as well as nontarget organisms. Fast up scaled production of the organism against a reasonable price is another important prerequisite. Finally, the microbe must be formulated and packed in a form that is stable for many months and which is consistent with agricultural practice.

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Acknowledgments

Clara Pliego thanks MEC, grant numbers AGL-2005-06347-C03-01, AGL2008-0543-C02-01 and Junta de Andalucia, Grupo PAI CVI264. Ben Lugtenberg thanks Leiden University, The European Commission, INTAS, the NWO departments of ALW, CW, STW as well as the Netherlands (NWO) – Russian Center of Excellence for support. All of us want to express our sincere gratitude to Prof. Fernando Pliego Alfaro for critical reading and helpful comments on the manuscript.

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  1. Clara Pliego

    Present address: Department of Life Science, Imperial College London. Div. of Biology, Imperial College Road, London, SW7 2AZ, UK

Authors and Affiliations

  1. Instituto de Hortofruticultura Subtropical y Mediterránea “La Mayora”, Universidad de Málaga - Consejo Superior de Investigaciones Científicas (IHSM-UMA-CSIC), Área de Genética, Universidad de Málaga, Campus de Teatinos s/n, 29071, Málaga, Spain

    Clara Pliego

  2. Koppert Biological Systems, Veilingweg 14, 155, 2650 AD, Berkel en Rodenrijs, the Netherlands

    Faina Kamilova

  3. Institute of Biology, Sylvius Laboratory, Leiden University, Sylviusweg 72, 9505, 2300 RA, Leiden, the Netherlands

    Ben Lugtenberg

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  1. Clara Pliego
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  1. , Dept. of Botany Microbiology, Gurukul Kangri University, Haridwar (Uttarakhand), 249404, India

    Dinesh K. Maheshwari

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© 2011 Springer-Verlag Berlin Heidelberg

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Pliego, C., Kamilova, F., Lugtenberg, B. (2011). Plant Growth-Promoting Bacteria: Fundamentals and Exploitation. In: Maheshwari, D. (eds) Bacteria in Agrobiology: Crop Ecosystems. Springer, Berlin, Heidelberg. https://doi.org/10.1007/978-3-642-18357-7_11

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