Effect of virulence and serial transfers of Xanthomonas campestris on xanthan gum production

Detalhes bibliográficos
Autor(a) principal: Nitschke,Marcia
Data de Publicação: 2000
Outros Autores: Rodrigues,Vanessa
Tipo de documento: Artigo
Idioma: eng
Título da fonte: Brazilian Journal of Microbiology
Texto Completo: http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822000000100014
Resumo: The virulence of six Xanthomonas campestris isolates was evaluated using the percentage of lesion area of leaves in Brassica oleraceae host plant, compared to diameter of colonies, xanthan production and gum viscosity. In terms of virulence, the isolates belonged to two statistically different groups: isolates B, UPF and C7 showed values between 52 and 69%, while isolates CF, C and strain B-1459 gave 0-30% of lesion area. Final xanthan concentration, gum viscosity and colony diameter did not correlate with virulence calculated by percentage of lesion area, showing that this parameter is not a good criterium for selection of potential xanthan producer isolates. Serial transfers of X. campestris isolates in host plant did not show a significant effect on "in vitro" production of xanthan or on viscosity levels, suggesting that the increasing interaction between plant and bacteria did not stimulate the increase in xanthan production and viscosity.
id SBM-1_62ad6874248cac477ce6eeecbcdedf63
oai_identifier_str oai:scielo:S1517-83822000000100014
network_acronym_str SBM-1
network_name_str Brazilian Journal of Microbiology
repository_id_str
spelling Effect of virulence and serial transfers of Xanthomonas campestris on xanthan gum productionXanthomonas campestrisserial transfersvirulencexanthanThe virulence of six Xanthomonas campestris isolates was evaluated using the percentage of lesion area of leaves in Brassica oleraceae host plant, compared to diameter of colonies, xanthan production and gum viscosity. In terms of virulence, the isolates belonged to two statistically different groups: isolates B, UPF and C7 showed values between 52 and 69%, while isolates CF, C and strain B-1459 gave 0-30% of lesion area. Final xanthan concentration, gum viscosity and colony diameter did not correlate with virulence calculated by percentage of lesion area, showing that this parameter is not a good criterium for selection of potential xanthan producer isolates. Serial transfers of X. campestris isolates in host plant did not show a significant effect on "in vitro" production of xanthan or on viscosity levels, suggesting that the increasing interaction between plant and bacteria did not stimulate the increase in xanthan production and viscosity.Sociedade Brasileira de Microbiologia2000-03-01info:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersiontext/htmlhttp://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822000000100014Brazilian Journal of Microbiology v.31 n.1 2000reponame:Brazilian Journal of Microbiologyinstname:Sociedade Brasileira de Microbiologia (SBM)instacron:SBM10.1590/S1517-83822000000100014info:eu-repo/semantics/openAccessNitschke,MarciaRodrigues,Vanessaeng2000-08-25T00:00:00Zoai:scielo:S1517-83822000000100014Revistahttps://www.scielo.br/j/bjm/ONGhttps://old.scielo.br/oai/scielo-oai.phpbjm@sbmicrobiologia.org.br||mbmartin@usp.br1678-44051517-8382opendoar:2000-08-25T00:00Brazilian Journal of Microbiology - Sociedade Brasileira de Microbiologia (SBM)false
dc.title.none.fl_str_mv Effect of virulence and serial transfers of Xanthomonas campestris on xanthan gum production
title Effect of virulence and serial transfers of Xanthomonas campestris on xanthan gum production
spellingShingle Effect of virulence and serial transfers of Xanthomonas campestris on xanthan gum production
Nitschke,Marcia
Xanthomonas campestris
serial transfers
virulence
xanthan
title_short Effect of virulence and serial transfers of Xanthomonas campestris on xanthan gum production
title_full Effect of virulence and serial transfers of Xanthomonas campestris on xanthan gum production
title_fullStr Effect of virulence and serial transfers of Xanthomonas campestris on xanthan gum production
title_full_unstemmed Effect of virulence and serial transfers of Xanthomonas campestris on xanthan gum production
title_sort Effect of virulence and serial transfers of Xanthomonas campestris on xanthan gum production
author Nitschke,Marcia
author_facet Nitschke,Marcia
Rodrigues,Vanessa
author_role author
author2 Rodrigues,Vanessa
author2_role author
dc.contributor.author.fl_str_mv Nitschke,Marcia
Rodrigues,Vanessa
dc.subject.por.fl_str_mv Xanthomonas campestris
serial transfers
virulence
xanthan
topic Xanthomonas campestris
serial transfers
virulence
xanthan
description The virulence of six Xanthomonas campestris isolates was evaluated using the percentage of lesion area of leaves in Brassica oleraceae host plant, compared to diameter of colonies, xanthan production and gum viscosity. In terms of virulence, the isolates belonged to two statistically different groups: isolates B, UPF and C7 showed values between 52 and 69%, while isolates CF, C and strain B-1459 gave 0-30% of lesion area. Final xanthan concentration, gum viscosity and colony diameter did not correlate with virulence calculated by percentage of lesion area, showing that this parameter is not a good criterium for selection of potential xanthan producer isolates. Serial transfers of X. campestris isolates in host plant did not show a significant effect on "in vitro" production of xanthan or on viscosity levels, suggesting that the increasing interaction between plant and bacteria did not stimulate the increase in xanthan production and viscosity.
publishDate 2000
dc.date.none.fl_str_mv 2000-03-01
dc.type.driver.fl_str_mv info:eu-repo/semantics/article
dc.type.status.fl_str_mv info:eu-repo/semantics/publishedVersion
format article
status_str publishedVersion
dc.identifier.uri.fl_str_mv http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822000000100014
url http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1517-83822000000100014
dc.language.iso.fl_str_mv eng
language eng
dc.relation.none.fl_str_mv 10.1590/S1517-83822000000100014
dc.rights.driver.fl_str_mv info:eu-repo/semantics/openAccess
eu_rights_str_mv openAccess
dc.format.none.fl_str_mv text/html
dc.publisher.none.fl_str_mv Sociedade Brasileira de Microbiologia
publisher.none.fl_str_mv Sociedade Brasileira de Microbiologia
dc.source.none.fl_str_mv Brazilian Journal of Microbiology v.31 n.1 2000
reponame:Brazilian Journal of Microbiology
instname:Sociedade Brasileira de Microbiologia (SBM)
instacron:SBM
instname_str Sociedade Brasileira de Microbiologia (SBM)
instacron_str SBM
institution SBM
reponame_str Brazilian Journal of Microbiology
collection Brazilian Journal of Microbiology
repository.name.fl_str_mv Brazilian Journal of Microbiology - Sociedade Brasileira de Microbiologia (SBM)
repository.mail.fl_str_mv bjm@sbmicrobiologia.org.br||mbmartin@usp.br
_version_ 1752122198772940800

Registros relacionados