Fungi Association with Cedar’s Seeds and Fusarium sp. and Pestalotia sp. Pathogenicities Levantamento de Fungos em Sementes de Cedro e Avaliação da Patogenicidade de Fusarium sp. e Pestalotia sp.

Fungi Association with Cedar’s Seeds and Fusarium sp. and Pestalotia sp. Pathogenicities Levantamento de Fungos em Sementes de Cedro e Avaliação da Patogenicidade de Fusarium sp. e Pestalotia sp.

<p>This research had as main objectives the evaluation of cedar’s seeds seed-borne fungi and the Fusarium<br />sp. and Pestalotia sp. pathogenicities. For the fungi detection Potato Dextrose and Agar medium and Blotter<br />test methods were used. For the pa...

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Bibliographic Details
Main Authors: Sílvia Cristina Benetti, Álvaro Figueredo dos Santos, Antonio Carlos de Souza Medeiros, David de Souza Jaccoud Filho
Format: Article
Language:English
Published: Embrapa Florestas 2010-02-01
Series:Pesquisa Florestal Brasileira
Subjects:
Sementes florestais
Cedrella fissilis
Online Access:http://www.cnpf.embrapa.br/pfb/index.php/pfb/article/view/9
Description
Summary:&lt;p&gt;This research had as main objectives the evaluation of cedar’s seeds seed-borne fungi and the Fusarium&lt;br /&gt;sp. and Pestalotia sp. pathogenicities. For the fungi detection Potato Dextrose and Agar medium and Blotter&lt;br /&gt;test methods were used. For the pathogenicity tests, isolates of Fusarium sp. and Pestalotia sp. were used. The following fungi were observed: Pestalotia sp., Fusarium sp., Phomopsis sp., Colletotrichum sp., Macrophomina sp. and Cladosporium sp. The fungi observed in the highest frequencies were: Fusarium sp., Phomopsis sp. and Pestalotia sp. A reduction of the germination level was observed in seedlings from cedar’s seed inoculated with Fusarium sp.&lt;/p&gt;&lt;p&gt; &lt;/p&gt;&lt;p&gt;doi: 10.4336/2009.pfb.58.81&lt;/p&gt;<br>&lt;p&gt;Este trabalho teve por objetivos avaliar fungos em sementes de cedro e testar a patogenicidade de Fusarium sp. e Pestalotia sp. Para detecção de fungos, foram utilizados batata-dextrose-ágar e papel filtro. Para o teste de patogenicidade, utilizaram-se isolados de Fusarium sp. e de Pestalotia sp. Foi constatada a presença dos seguintes fungos nas sementes: Pestalotia sp., Fusarium sp., Phomopsis sp., Colletotrichum sp., Macrophomina sp. e Cladosporium sp. Os fungos de maior freqüência foram: Fusarium sp., Phomopsis sp. e Pestalotia sp. Observou-se decréscimo nos valores de emergência das plântulas oriundas das sementes inoculadas com Fusarium sp.&lt;/p&gt;&lt;p&gt; &lt;/p&gt;&lt;p&gt;Doi: &lt;span class="tx"&gt;10.4336/2009.pfb.58.81&lt;/span&gt;&lt;/p&gt;
ISSN:1809-3647
1983-2605

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