dc.creatorAGUIAR, Rosane
dc.creatorFIORE, Marli Fatima
dc.creatorFRANCO, Maione Wittig
dc.creatorVENTRELLA, Marilia Contin
dc.creatorLORENZI, Adriana Sturion
dc.creatorVANETTI, Claudia A.
dc.creatorALFENAS, Acelino Couto
dc.date.accessioned2012-10-18T20:44:15Z
dc.date.accessioned2018-07-04T14:44:25Z
dc.date.available2012-10-18T20:44:15Z
dc.date.available2018-07-04T14:44:25Z
dc.date.created2012-10-18T20:44:15Z
dc.date.issued2008
dc.identifierJOURNAL OF PHYCOLOGY, v.44, n.5, p.1322-1334, 2008
dc.identifier0022-3646
dc.identifierhttp://producao.usp.br/handle/BDPI/16985
dc.identifier10.1111/j.1529-8817.2008.00584.x
dc.identifierhttp://dx.doi.org/10.1111/j.1529-8817.2008.00584.x
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1613791
dc.description.abstractA 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.
dc.languageeng
dc.publisherBLACKWELL PUBLISHING
dc.relationJournal of Phycology
dc.rightsCopyright BLACKWELL PUBLISHING
dc.rightsrestrictedAccess
dc.subjectBrasilonema
dc.subjectcyanobacteria
dc.subjectEucalyptus grandis
dc.subjectleaf anatomy
dc.subjectnovel species
dc.subjectultrastructure
dc.titleA NOVEL EPIPHYTIC CYANOBACTERIAL SPECIES FROM THE GENUS BRASILONEMA CAUSING DAMAGE TO EUCALYPTUS LEAVES
dc.typeArtículos de revistas


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