33
views
0
recommends
+1 Recommend
0 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: not found

      Antagonistic Activities of Bacillus spp. Strains Isolated from Tidal Flat Sediment Towards Anthracnose Pathogens Colletotrichum acutatum and C. gloeosporioides in South Korea

      research-article

      Read this article at

      ScienceOpenPublisherPMC
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Anthracnose is a fungal disease caused by Colletotrichum species that is detrimental to numerous plant species. Anthracnose control with fungicides has both human health and environmental safety implications. Despite increasing public concerns, fungicide use will continue in the absence of viable alternatives. There have been relatively less efforts to search antagonistic bacteria from mudflats harboring microbial diversity. A total of 420 bacterial strains were isolated from mudflats near the western sea of South Korea. Five bacterial strains, LB01, LB14, HM03, HM17, and LB15, were characterized as having antifungal properties in the presence of C. acutatum and C. gloeosporioides. The three Bacillus atrophaeus strains, LB14, HM03, and HM17, produced large quantities of chitinase and protease enzymes, whereas the B. amyloliquefaciens strain LB01 produced protease and cellulase enzymes. Two important antagonistic traits, siderophore production and solubilization of insoluble phosphate, were observed in the three B. atrophaeus strains. Analyses of disease suppression revealed that LB14 was most effective for suppressing the incidence of anthracnose symptoms on pepper fruits. LB14 produced antagonistic compounds and suppressed conidial germination of C. acutatum and C. gloeosporioides. The results from the present study will provide a basis for developing a reliable alternative to fungicides for anthracnose control.

          Related collections

          Most cited references64

          • Record: found
          • Abstract: found
          • Article: not found

          Bacillus lipopeptides: versatile weapons for plant disease biocontrol.

          In the context of biocontrol of plant diseases, the three families of Bacillus lipopeptides - surfactins, iturins and fengycins were at first mostly studied for their antagonistic activity for a wide range of potential phytopathogens, including bacteria, fungi and oomycetes. Recent investigations have shed light on the fact that these lipopeptides can also influence the ecological fitness of the producing strain in terms of root colonization (and thereby persistence in the rhizosphere) and also have a key role in the beneficial interaction of Bacillus species with plants by stimulating host defence mechanisms. The different structural traits and physico-chemical properties of these effective surface- and membrane-active amphiphilic biomolecules explain their involvement in most of the mechanisms developed by bacteria for the biocontrol of different plant pathogens.
            Bookmark
            • Record: found
            • Abstract: found
            • Article: not found

            Microbial diversity in soil: selection microbial populations by plant and soil type and implications for disease suppressiveness.

            An increasing interest has emerged with respect to the importance of microbial diversity in soil habitats. The extent of the diversity of microorganisms in soil is seen to be critical to the maintenance of soil health and quality, as a wide range of microorganisms is involved in important soil functions. This review focuses on recent data relating how plant type, soil type, and soil management regime affect the microbial diversity of soil and the implication for the soil's disease suppressiveness. The two main drivers of soil microbial community structure, i.e., plant type and soil type, are thought to exert their function in a complex manner. We propose that the fact that in some situations the soil and in others the plant type is the key factor determining soil microbial diversity is related to the complexity of the microbial interactions in soil, including interactions between microorganisms and soil and microorganisms and plants. A conceptual framework, based on the relative strengths of the shaping forces exerted by plant and soil versus the ecological behavior of microorganisms, is proposed.
              Bookmark
              • Record: found
              • Abstract: found
              • Article: not found

              Phosphate solubilizing bacteria and their role in plant growth promotion.

              The use of phosphate solubilizing bacteria as inoculants simultaneously increases P uptake by the plant and crop yield. Strains from the genera Pseudomonas, Bacillus and Rhizobium are among the most powerful phosphate solubilizers. The principal mechanism for mineral phosphate solubilization is the production of organic acids, and acid phosphatases play a major role in the mineralization of organic phosphorous in soil. Several phosphatase-encoding genes have been cloned and characterized and a few genes involved in mineral phosphate solubilization have been isolated. Therefore, genetic manipulation of phosphate-solubilizing bacteria to improve their ability to improve plant growth may include cloning genes involved in both mineral and organic phosphate solubilization, followed by their expression in selected rhizobacterial strains. Chromosomal insertion of these genes under appropriate promoters is an interesting approach.
                Bookmark

                Author and article information

                Journal
                Plant Pathol J
                Plant Pathol. J
                The Plant Pathology Journal
                Korean Society of Plant Pathology
                1598-2254
                2093-9280
                June 2015
                30 June 2015
                : 31
                : 2
                : 165-175
                Affiliations
                [1 ]Applied Biology Program, Division of Bioresource Sciences, Kangwon National University, Chuncheon 200-701, Korea
                [2 ]Crop Protection Division, National Academy of Agricultural Science, Rural Development Administration, Wanju-gun 565-851, Korea
                [3 ]BioHerb Research Institute, Kangwon National University, Chuncheon 200-701, Korea
                Author notes
                [* ]Corresponding author. Phone) +82-33-250-6435, FAX) +82-33-259-5558, E-mail) kims@ 123456kangwon.ac.kr
                Article
                ppj-31-165
                10.5423/PPJ.OA.03.2015.0036
                4453997
                26060435
                bb9b063e-b985-4988-8c1c-b3f3fa01b6d3
                © The Korean Society of Plant Pathology
                History
                : 15 March 2015
                : 14 April 2015
                : 15 April 2015
                Categories
                Articles

                antifungal activity,bacillus atrophaeus,biological control,colletotrichum,mudflat

                Comments

                Comment on this article