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  <titleInfo>
    <title>Fusarium solani and F. oxysporum: Etiological agents of damping off in crambe</title>
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  <name type="personal">
    <namePart>Migliorini, Patrícia</namePart>
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  <name type="personal">
    <namePart>Milanesi, Paola Mendes</namePart>
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  <name type="personal">
    <namePart>Mezzomo, Ricardo</namePart>
    <role>
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  <name type="personal">
    <namePart>Maciel, Caciara Gonzatto</namePart>
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  <name type="personal">
    <namePart>Muniz, Marlove Fátima Brião</namePart>
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ABSTRACT:      The association of Fusarium sp. with agricultural seeds is a limiting factor for the uniform establishment of the crop. The aim of this work was to identify six isolates of Fusarium at the species level, based on morphological and molecular markers (TEF-1α and βtub); and to verify the pathogenicity of these isolates to the seeds of Crambe abyssinica (crambe). The pathogenicity test was carried out through the contact of the seeds with the fungal culture for 48 hours, followed by sowing in sand. The variables evaluated were: percentage of emergence at 30 days and damping off. The Fusarium species identified were F.   solani (FCa/3, FCa/7.2 and FCa/10) and F. oxysporum (FCa/4, FCa/2 and FCa/8). The FCa/3, FCa/4 and FCa/7.2 isolates were pathogenic to crambe seedlings, causing reduction in the percentage of emergence and damping off. 



Key words:      Βtub; Crambe abyssinica; fungi; macroconidia; TEF-1α</abstract>
  <abstract>


RESUMO:      A associação de Fusarium sp. com sementes agrícolas é um fator limitante para o estabelecimento uniforme da cultura. Objetivou-se com este trabalho identificar seis isolados de Fusarium em nível de espécie, com base em marcadores morfológicos e moleculares (TEF-1α e βtub); e verificar a patogenicidade desses isolados à sementes de Crambe  abyssinica (crambe). O teste de patogenicidade foi realizado através do contato das sementes com a cultura fúngica por 48 h, seguida de semeadura em areia. As variáveis avaliadas foram: porcentagem de emergência aos 30 dias e tombamento de plântulas. As espécies de Fusarium identificadas foram F. solani (FCa/3, FCa/7.2 e FCa/10) e F. oxysporum (FCa/4, FCa/2 e FCa/8), sendo que os isolados FCa/3, FCa/4 e FCa/7.2 mostraram-se patogênicos ao crambe, causando redução no percentual de emergência e tombamento de plântulas. 



 Palavras-chave:      Btub; Crambe abyssinica; fungos; macroconídios; TEF-1α</abstract>
  <note>

Publicação online; 47 ref.; 4 tables; Summaries (En, Pt)</note>
  <subject>
    <topic>DOENÇA DE PLANTA</topic>
  </subject>
  <subject>
    <topic>FUSARIUM</topic>
  </subject>
  <subject>
    <topic>MARCADOR MOLECULAR</topic>
  </subject>
  <subject>
    <topic>DEFESA VEGETAL</topic>
  </subject>
  <relatedItem type="host">
    <titleInfo>
      <title>Revista Brasileira de Ciências Agrárias (Brazil)</title>
    </titleInfo>
    <originInfo>
      <publisher>Recife-PE Universidade Federal Rural de Pernambuco 2006</publisher>
    </originInfo>
    <identifier>2026-0843</identifier>
    <identifier type="issn">1981-1160</identifier>
    <identifier type="local">BR2025005635</identifier>
    <part>
      <text>v. 13(1) p. 1-7; (2018)</text>
    </part>
  </relatedItem>
  <identifier type="uri">http://www.agraria.pro.br/ojs32/index.php/RBCA/article/view/v13i1a5510/377</identifier>
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    <url>http://www.agraria.pro.br/ojs32/index.php/RBCA/article/view/v13i1a5510/377</url>
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    <recordCreationDate encoding="marc">260304</recordCreationDate>
    <recordChangeDate encoding="iso8601">20260304161116.0</recordChangeDate>
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