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Registro Completo |
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Biblioteca(s): |
Embrapa Recursos Genéticos e Biotecnologia; Embrapa Semiárido. |
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Data corrente: |
21/02/2008 |
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Data da última atualização: |
16/05/2024 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
AREVALO, J.; HIDALGO, L.; MARTINS, I.; SOUZA, J. F.; CASTRO, J. M. C.; CARNEIRO, R. M. D. G.; TIGANO, M. S. |
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Afiliação: |
J. AREVALO, CENTRO NACIONAL DE SANIDAD AGROPECUARIA; L. HIDALGO, CENTRO NACIONAL DE SANIDAD AGROPECUARIA; IRENE MARTINS, EMBRAPA RECURSOS GENÉTICOS E BIOTECNOLOGIA; JANAINA FERREIRA DE SOUZA; JOSÉ MAURO DA CUNHA E CASTRO, EMBRAPA SEMI-ÁRIDO; REGINA MARIA DECHECHI GOMES CARNEIRO, EMBRAPA RECURSOS GENÉTICOS E BIOTECNOLOGIA; MYRIAN SILVANA TIGANO, EMBRAPA RECURSOS GENÉTICOS E BIOTECNOLOGIA. |
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Título: |
Isolation, identification and characterization of egg-parasitizing fungi from guava plants infested with Meloigogyne mayaguensis in Brazil. |
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Ano de publicação: |
2007 |
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Fonte/Imprenta: |
In: REUNIÓN ANUAL DE LA ORGANIZACIÓN DE NEMATÓLOGOS DE LOS TRÓPICOS AMERICANOS: ONTA, 39., 2007, Córdoba, Argentina. Programa y resúmenes...Córdoba: Organización de Nematólogos de los Trópicos Americanos, 2007. p. 40. O 23. |
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Idioma: |
Inglês |
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Conteúdo: |
Recently, Meloidogyne mayaguensis was detected causing serious economic damage in a commercial plantation of guava in Brazil. Considering the possibility to use biological control agents in combination with another biological tactic to keep the population of this pest below the economic level, infested root samples were taken in a commercial guava plantation in Northeast Brazil with the objective to isolate egg parasitic fungi. Pure monospore cultures of different isolates were obtained and identified by cultural andorphological characteristics. Mycelia growth and sporulation in artificial media were evaluated at four different temperatures (20, 24, 28, 32°C), and mass production of chlamydospores/conidia was determined through a solid state fermentation in cereal grain bags. The fungi Pochonia chlamydosporia var. chlamydosporia, P. chlamydosporia var. catenulata, Paecilomyces lilacinus and Lecanicillium psalliotae were identified and deposited in the Entomopathogenic Fungi Culture Collection in Genetic Resources and Biotechnology, Embrapa. The P. lilacinus isolate was not considered in the characterization studies. The optimal growth and chlamydospore production for Pochonia chlamydosporia isolates were in the range of 24 and 28°C, whereas L. psalliotae grew better at extreme temperatures than P. chlamydosporia isolates, but its conidia production was significatively affected when temperature increased. At 19 days of solid state fermentation, the P. chlamydosporia isolates produced between 3,5 and 5,2 x 10 chlamydospores per gram colonized substrate, and L. psalliotae produced 8,65 x 10 conidia per gram colonized substrate. The potential of these isolates as biological control agents of M. mayaguensis are discussed. This project has been funded by CNPq-Brazil (480001/2005-07). MenosRecently, Meloidogyne mayaguensis was detected causing serious economic damage in a commercial plantation of guava in Brazil. Considering the possibility to use biological control agents in combination with another biological tactic to keep the population of this pest below the economic level, infested root samples were taken in a commercial guava plantation in Northeast Brazil with the objective to isolate egg parasitic fungi. Pure monospore cultures of different isolates were obtained and identified by cultural andorphological characteristics. Mycelia growth and sporulation in artificial media were evaluated at four different temperatures (20, 24, 28, 32°C), and mass production of chlamydospores/conidia was determined through a solid state fermentation in cereal grain bags. The fungi Pochonia chlamydosporia var. chlamydosporia, P. chlamydosporia var. catenulata, Paecilomyces lilacinus and Lecanicillium psalliotae were identified and deposited in the Entomopathogenic Fungi Culture Collection in Genetic Resources and Biotechnology, Embrapa. The P. lilacinus isolate was not considered in the characterization studies. The optimal growth and chlamydospore production for Pochonia chlamydosporia isolates were in the range of 24 and 28°C, whereas L. psalliotae grew better at extreme temperatures than P. chlamydosporia isolates, but its conidia production was significatively affected when temperature increased. At 19 days of solid state fermentation, the P. chlamydosporia isolates ... Mostrar Tudo |
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Palavras-Chave: |
Guava. |
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Thesagro: |
Doença; Fungo; Goiaba. |
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Thesaurus Nal: |
Meloidogyne mayaguensis. |
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Categoria do assunto: |
--
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/178372/1/ID-29195-1-a.pdf
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Marc: |
LEADER 02706nam a2200241 a 4500
001 1189313
005 2024-05-16
008 2007 bl uuuu u00u1 u #d
100 1 $aAREVALO, J.
245 $aIsolation, identification and characterization of egg-parasitizing fungi from guava plants infested with Meloigogyne mayaguensis in Brazil.
260 $aIn: REUNIÓN ANUAL DE LA ORGANIZACIÓN DE NEMATÓLOGOS DE LOS TRÓPICOS AMERICANOS: ONTA, 39., 2007, Córdoba, Argentina. Programa y resúmenes...Córdoba: Organización de Nematólogos de los Trópicos Americanos, 2007. p. 40. O 23.$c2007
520 $aRecently, Meloidogyne mayaguensis was detected causing serious economic damage in a commercial plantation of guava in Brazil. Considering the possibility to use biological control agents in combination with another biological tactic to keep the population of this pest below the economic level, infested root samples were taken in a commercial guava plantation in Northeast Brazil with the objective to isolate egg parasitic fungi. Pure monospore cultures of different isolates were obtained and identified by cultural andorphological characteristics. Mycelia growth and sporulation in artificial media were evaluated at four different temperatures (20, 24, 28, 32°C), and mass production of chlamydospores/conidia was determined through a solid state fermentation in cereal grain bags. The fungi Pochonia chlamydosporia var. chlamydosporia, P. chlamydosporia var. catenulata, Paecilomyces lilacinus and Lecanicillium psalliotae were identified and deposited in the Entomopathogenic Fungi Culture Collection in Genetic Resources and Biotechnology, Embrapa. The P. lilacinus isolate was not considered in the characterization studies. The optimal growth and chlamydospore production for Pochonia chlamydosporia isolates were in the range of 24 and 28°C, whereas L. psalliotae grew better at extreme temperatures than P. chlamydosporia isolates, but its conidia production was significatively affected when temperature increased. At 19 days of solid state fermentation, the P. chlamydosporia isolates produced between 3,5 and 5,2 x 10 chlamydospores per gram colonized substrate, and L. psalliotae produced 8,65 x 10 conidia per gram colonized substrate. The potential of these isolates as biological control agents of M. mayaguensis are discussed. This project has been funded by CNPq-Brazil (480001/2005-07).
650 $aMeloidogyne mayaguensis
650 $aDoença
650 $aFungo
650 $aGoiaba
653 $aGuava
700 1 $aHIDALGO, L.
700 1 $aMARTINS, I.
700 1 $aSOUZA, J. F.
700 1 $aCASTRO, J. M. C.
700 1 $aCARNEIRO, R. M. D. G.
700 1 $aTIGANO, M. S.
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Registro original: |
Embrapa Recursos Genéticos e Biotecnologia (CENARGEN) |
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Biblioteca |
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Registro Completo
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
01/12/2009 |
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Data da última atualização: |
08/06/2018 |
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Autoria: |
MORAIS, J. W. de; SILVA, E. P. da. |
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Afiliação: |
José Wellington de Morais, Instituto Nacional de Pesquisas da Amazônia/Coordenação de Pesquisas em Entomologia - CPEN; Ester Paixão da Silva, Instituto Nacional de Pesquisas da Amazônia/Coordenação de Pesquisas em Entomologia - CPEN. |
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Título: |
Occurrence of Symphyla (Myriapoda) in the region of the Upper Solimões River, Amazonas, Brazil. |
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Ano de publicação: |
2009 |
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Fonte/Imprenta: |
Pesquisa Agropecuária Brasileira, Brasília, DF, v. 44, n. 8, p. 981-983, ago. 2009 |
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Idioma: |
Inglês |
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Notas: |
Título em português: Ocorrência de Symphyla (Myriapoda) na região do Alto Rio Solimões, Amazonas. |
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Conteúdo: |
The present work aimed at identifying the Symphyla species diversity and abundance in various land-use systems under different degrees of intensification in western Amazonia. This is the first inventory of Symphyla in primary and secondary forest, crops, agroforestry systems and pastures which was carried out in Benjamin Constant municipality, in the region of the Upper Solimões River, Brazil. Samples (n = 101) were collected using a metal corer, and the symphylan extraction was carried out using Berlese-Tullgren funnels. Two genera and three species of symphylans were encountered. Considering the diversity encountered in Amazonian inventories, with only four genera and five known species overall, the three species found in the present study are considered a reasonable representation of the regional diversity. Two of the Hanseniella species found have been known to cause plant damage. |
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Palavras-Chave: |
Fauna do solo; Hanseniella; Symphyla (Myriapoda) na região do Alto Rio Solimões; Symphylella. |
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Thesagro: |
Biodiversidade. |
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Thesaurus NAL: |
Biodiversity; Soil fauna. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/106030/1/Occurrence.pdf
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Marc: |
LEADER 01699naa a2200229 a 4500
001 1660968
005 2018-06-08
008 2009 bl uuuu u00u1 u #d
100 1 $aMORAIS, J. W. de
245 $aOccurrence of Symphyla (Myriapoda) in the region of the Upper Solimões River, Amazonas, Brazil.
260 $c2009
500 $aTítulo em português: Ocorrência de Symphyla (Myriapoda) na região do Alto Rio Solimões, Amazonas.
520 $aThe present work aimed at identifying the Symphyla species diversity and abundance in various land-use systems under different degrees of intensification in western Amazonia. This is the first inventory of Symphyla in primary and secondary forest, crops, agroforestry systems and pastures which was carried out in Benjamin Constant municipality, in the region of the Upper Solimões River, Brazil. Samples (n = 101) were collected using a metal corer, and the symphylan extraction was carried out using Berlese-Tullgren funnels. Two genera and three species of symphylans were encountered. Considering the diversity encountered in Amazonian inventories, with only four genera and five known species overall, the three species found in the present study are considered a reasonable representation of the regional diversity. Two of the Hanseniella species found have been known to cause plant damage.
650 $aBiodiversity
650 $aSoil fauna
650 $aBiodiversidade
653 $aFauna do solo
653 $aHanseniella
653 $aSymphyla (Myriapoda) na região do Alto Rio Solimões
653 $aSymphylella
700 1 $aSILVA, E. P. da
773 $tPesquisa Agropecuária Brasileira, Brasília, DF$gv. 44, n. 8, p. 981-983, ago. 2009
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Embrapa Unidades Centrais (AI-SEDE) |
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