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Endophytic microorganisms—promising applications in bioremediation of greenhouse gases

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Applied Microbiology and Biotechnology

Springer Berlin Heidelberg

Bioremediation, Greenhouse gases, Plant, Endophytes

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      Abstract

      Bioremediation is a technique that uses microbial metabolism to remove pollutants. Various techniques and strategies of bioremediation (e.g., phytoremediation enhanced by endophytic microorganisms, rhizoremediation) can mainly be used to remove hazardous waste from the biosphere. During the last decade, this specific technique has emerged as a potential cleanup tool only for metal pollutants. This situation has changed recently as a possibility has appeared for bioremediation of other pollutants, for instance, volatile organic compounds, crude oils, and radionuclides. The mechanisms of bioremediation depend on the mobility, solubility, degradability, and bioavailability of contaminants. Biodegradation of pollutions is associated with microbial growth and metabolism, i.e., factors that have an impact on the process. Moreover, these factors have a great influence on degradation. As a result, recognition of natural microbial processes is indispensable for understanding the mechanisms of effective bioremediation. In this review, we have emphasized the occurrence of endophytic microorganisms and colonization of plants by endophytes. In addition, the role of enhanced bioremediation by endophytic bacteria and especially of phytoremediation is presented.

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      Most cited references 111

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      Priming: getting ready for battle.

      Infection of plants by necrotizing pathogens or colonization of plant roots with certain beneficial microbes causes the induction of a unique physiological state called "priming." The primed state can also be induced by treatment of plants with various natural and synthetic compounds. Primed plants display either faster, stronger, or both activation of the various cellular defense responses that are induced following attack by either pathogens or insects or in response to abiotic stress. Although the phenomenon has been known for decades, most progress in our understanding of priming has been made over the past few years. Here, we summarize the current knowledge of priming in various induced-resistance phenomena in plants.
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        Properties of bacterial endophytes and their proposed role in plant growth.

        Bacterial endophytes live inside plants for at least part of their life cycle. Studies of the interaction of endophytes with their host plants and their function within their hosts are important to address the ecological relevance of endophytes. The modulation of ethylene levels in plants by bacterially produced 1-aminocyclopropane-1-carboxylate deaminase is a key trait that enables interference with the physiology of the host plant. Endophytes with this capacity might profit from association with the plant, because colonization is enhanced. In turn, host plants benefit by stress reduction and increased root growth. This mechanism leads to the concept of 'competent' endophytes, defined as endophytes that are equipped with genes important for maintenance of plant-endophyte associations. The ecological role of these endophytes and their relevance for plant growth are discussed here.
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          Bioprospecting for Microbial Endophytes and Their Natural Products

           G Strobel,  B. Daisy (2003)
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            Author and article information

            Affiliations
            Department of Biochemistry and Environmental Chemistry, The John Paul II Catholic University of Lublin, Ul. Konstantynów 1I, 20-708 Lublin, Poland
            Contributors
            +48-81-4759461 , +48-81-4454611 , agawoloszyn@kul.pl
            Journal
            Appl Microbiol Biotechnol
            Appl. Microbiol. Biotechnol
            Applied Microbiology and Biotechnology
            Springer Berlin Heidelberg (Berlin/Heidelberg )
            0175-7598
            1432-0614
            19 September 2013
            19 September 2013
            2013
            : 97
            : 9589-9596
            24048641
            3825493
            5235
            10.1007/s00253-013-5235-9
            © The Author(s) 2013

            Open Access This article is distributed under the terms of the Creative Commons Attribution License which permits any use, distribution, and reproduction in any medium, provided the original author(s) and the source are credited.

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            © Springer-Verlag 2013

            Biotechnology

            bioremediation, endophytes, plant, greenhouse gases

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