22
views
0
recommends
+1 Recommend
1 collections
    0
    shares
      • Record: found
      • Abstract: found
      • Article: found
      Is Open Access

      Caracterização do dna ribossômico do isolado de Scleroderma UFSMSc1 de Eucalyptus grandis W. Hill ex-maiden Translated title: Ribosomal dna characterization of Scleroderma UFSMSc1 of Eucalyptus grandis W. Hill ex-maiden

      research-article

      Read this article at

      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

          O ácido desoxiribunocléico ribossomal (rDNA) é utilizado como uma ferramenta importante para caracterizar o polimorfismo entre os fungos. Existem muitas cópias de rDNA as quais são arranjadas por espaços não codificados. Essas cópias são altamente conservadas entre espécies de fungos. O objetivo deste trabalho foi estudar a região do Espaço Interno Transcrito (ITS) e analisar as diferenças no polimorfismo da seqüência dessa região no fungo Scleroderma UFSMSc1 com seqüências dos isolados de Scleroderma e Pisolithus do banco de dados GenBank. O DNA do isolado de Scleroderma UFSMSc1 foi extraído por meio da solução de extração à base de CTAB. A partir do DNA, foram feitas reações de PCR com os oligonucleotídeos iniciadores universais ITS1 e ITS4, cujo produto amplificado foi purificado e seqüenciado. A região do ITS do fungo mostrou uma banda simples de aproximadamente 650 pares de base. Na análise da seqüência dessa região em comparação com algumas depositadas no GenBank, observou-se a formação de agrupamento com espécies de Scleroderma. Os resultados mostraram que essa técnica favorece a identificação de espécies de Scleroderma, visto que tais fungos são difíceis de ser identificados apenas por seus caracteres morfológicos.

          Translated abstract

          The ribossomal deoxyribonucleic acid (rDNA) represents an important tool in the characterization of fungi polymorphism. There are many copies of rDNA arranged in non encoded spaces. These copies are highly preserved in fungus species. The purpose of this study was to investigate the Internal Transcribed Spacer (ITS) region and to analyze the differences in the sequence polymorphism of the ITS region in the fungus Scleroderma UFSMSc1 with sequences of Scleroderma and Pisolithus isolates from the GenBank database. The DNA of the Scleroderma UFSMSc1 isolate was extracted with CTAB solution. PCR reactions were carried out with the universal primers ITS1 and ITS4. The amplified products were purified and sequenced. A simple band with a fragment of approximately 650 base pairs was observed in the ITS region of the fungus. The formation of grouping with Scleroderma species was observed in the sequence analysis of this region in comparison with entries of the GenBank database. The results confirmed this technique for Scleroderma species identification, since these fungi are not easily identified by morphological characters.

          Related collections

          Most cited references22

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

          Ectomycorrhizal networks and seedling establishment during early primary succession.

          K Nara (2005)
          Ectomycorrhizal (ECM) fungal mycelia are the main organs for nutrient uptake in many woody plants, and often connect seedlings to mature trees. While it is known that resources are shared among connected plants via common mycorrhizal networks (CMNs), the net effects of CMNs on seedling performance in the field are almost unknown. CMNs of individual ECM fungal species were produced in an early succession volcanic desert by transplanting current-year seedlings of Salix reinii with ECM mother trees that had been inoculated with one of 11 dominant ECM fungal species. Most seedlings were connected to individual CMNs without being infected by other ECM fungi. Although control seedlings showed poor growth under severe nutrient competition with larger nonmycorrhizal mother trees, nutrient acquisition and growth of seedlings connected to CMNs were improved with most fungal species. The positive effects of CMNs on seedling performance were significantly different among ECM fungal species; for example, the maximum difference in seedling nitrogen acquisition was 1 : 5.9. The net effects of individual CMNs in the field and interspecific variation among ECM fungal species are shown.
            Bookmark
            • Record: found
            • Abstract: not found
            • Article: not found

            The influence of ectotrophic ectomycorrhizal fungi on the resistance of pine roots to pathogenic infections. I. Antagonism of mycorrhizal fungi to pathogenic fungi and soil bacteria

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

              Introduction to Molecular Analysis of Ectomycorrhizal Communities

                Bookmark

                Author and article information

                Contributors
                Role: ND
                Role: ND
                Role: ND
                Journal
                rbcs
                Revista Brasileira de Ciência do Solo
                Rev. Bras. Ciênc. Solo
                Sociedade Brasileira de Ciência do Solo (Viçosa )
                1806-9657
                December 2008
                : 32
                : spe
                : 2677-2682
                Affiliations
                [1 ] Universidade Federal de Santa Maria Brazil
                [2 ] Universidade Federal do Pará Brazil
                [3 ] Universidade Federal de Santa Maria Brazil
                Article
                S0100-06832008000700010
                10.1590/S0100-06832008000700010
                734c4571-4c41-4408-8a24-786779260d7f

                http://creativecommons.org/licenses/by/4.0/

                History
                Product

                SciELO Brazil

                Self URI (journal page): http://www.scielo.br/scielo.php?script=sci_serial&pid=0100-0683&lng=en
                Categories
                SOIL SCIENCE

                Soil
                DNA characterization,PCR,Scleroderma,caracterização do DNA
                Soil
                DNA characterization, PCR, Scleroderma, caracterização do DNA

                Comments

                Comment on this article