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A NOVEL EPIPHYTIC CYANOBACTERIAL SPECIES FROM THE GENUS BRASILONEMA CAUSING DAMAGE TO EUCALYPTUS LEAVES(1).
Aguiar, Rosane; Fiore, Marli Fatima; Franco, Maione Wittig; Ventrella, Marília Contin; Lorenzi, Adriana Sturion; Vanetti, Cláudia A; Alfenas, Acelino Couto.
Afiliação
  • Aguiar R; Plant Biology Department, Federal University of Viçosa, Viçosa, Minas Gerais, BrazilCenter for Nuclear Energy in Agriculture, University of São Paulo, Piracicaba, São Paulo, BrazilPlant Biology Department, Federal University of Viçosa, Viçosa, Minas Gerais, BrazilCenter for Nuclear Energy in Agricul
  • Fiore MF; Plant Biology Department, Federal University of Viçosa, Viçosa, Minas Gerais, BrazilCenter for Nuclear Energy in Agriculture, University of São Paulo, Piracicaba, São Paulo, BrazilPlant Biology Department, Federal University of Viçosa, Viçosa, Minas Gerais, BrazilCenter for Nuclear Energy in Agricul
  • Franco MW; Plant Biology Department, Federal University of Viçosa, Viçosa, Minas Gerais, BrazilCenter for Nuclear Energy in Agriculture, University of São Paulo, Piracicaba, São Paulo, BrazilPlant Biology Department, Federal University of Viçosa, Viçosa, Minas Gerais, BrazilCenter for Nuclear Energy in Agricul
  • Ventrella MC; Plant Biology Department, Federal University of Viçosa, Viçosa, Minas Gerais, BrazilCenter for Nuclear Energy in Agriculture, University of São Paulo, Piracicaba, São Paulo, BrazilPlant Biology Department, Federal University of Viçosa, Viçosa, Minas Gerais, BrazilCenter for Nuclear Energy in Agricul
  • Lorenzi AS; Plant Biology Department, Federal University of Viçosa, Viçosa, Minas Gerais, BrazilCenter for Nuclear Energy in Agriculture, University of São Paulo, Piracicaba, São Paulo, BrazilPlant Biology Department, Federal University of Viçosa, Viçosa, Minas Gerais, BrazilCenter for Nuclear Energy in Agricul
  • Vanetti CA; Plant Biology Department, Federal University of Viçosa, Viçosa, Minas Gerais, BrazilCenter for Nuclear Energy in Agriculture, University of São Paulo, Piracicaba, São Paulo, BrazilPlant Biology Department, Federal University of Viçosa, Viçosa, Minas Gerais, BrazilCenter for Nuclear Energy in Agricul
  • Alfenas AC; Plant Biology Department, Federal University of Viçosa, Viçosa, Minas Gerais, BrazilCenter for Nuclear Energy in Agriculture, University of São Paulo, Piracicaba, São Paulo, BrazilPlant Biology Department, Federal University of Viçosa, Viçosa, Minas Gerais, BrazilCenter for Nuclear Energy in Agricul
J Phycol ; 44(5): 1322-34, 2008 Oct.
Article em En | MEDLINE | ID: mdl-27041729
A cyanobacterial mat colonizing the leaves of Eucalyptus grandis was determined to be responsible for serious damage affecting the growth and development of whole plants under the clonal hybrid nursery conditions. The dominant cyanobacterial species was isolated in BG-11 medium lacking a source of combined nitrogen and identified by cell morphology characters and molecular phylogenetic analysis (16S rRNA gene and cpcBA-IGS sequences). The isolated strain represents a novel species of the genus Brasilonema and is designated Brasilonema octagenarum strain UFV-E1. Thin sections of E. grandis leaves analyzed by light and electron microscopy showed that the B. octagenarum UFV-E1 filaments penetrate into the leaf mesophyll. The depth of infection and the mechanism by which the cyanobacterium invades leaf tissue were not determined. A major consequence of colonization by this cyanobacterium is a reduction in photosynthesis in the host since the cyanobacterial mats decrease the amount of light incident on leaf surfaces. Moreover, the cyanobacteria also interfere with stomatal gas exchange, decreasing CO2 assimilation. To our knowledge, this is the first report of an epiphytic cyanobacterial species causing damage to E. grandis leaves.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE País/Região como assunto: America do sul / Brasil Idioma: En Revista: J Phycol Ano de publicação: 2008 Tipo de documento: Article País de publicação: Estados Unidos
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE País/Região como assunto: America do sul / Brasil Idioma: En Revista: J Phycol Ano de publicação: 2008 Tipo de documento: Article País de publicação: Estados Unidos