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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
27/02/2014 |
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Data da última atualização: |
27/02/2014 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
PEIXOTO, C. N.; OTTONI, G.; FILIPPI, M. C. C.; SILVA-LOBO, V. L.; PRABHU, A. S. |
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Afiliação: |
CECÍLIA N. PEIXOTO, UFG; GISELLE OTTONI, UFG; MARTA CRISTINA CORSI DE FILIPPI, CNPAF; VALACIA LEMES DA SILVA LOBO, CNPAF; ANNE SITARAMA PRABHU, CNPAF. |
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Título: |
Biology of Gaeumannomyces graminis var. graminis isolates from rice and grasses and epidemiological aspects of crown sheath rot of rice. |
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Ano de publicação: |
2013 |
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Fonte/Imprenta: |
Tropical Plant Pathology, Brasília, DF, v. 38, n. 6, p. 495-504, nov./dez. 2013. |
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Idioma: |
Inglês |
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Conteúdo: |
A collection of Gaeumannomyces graminis var. graminis isolates obtained from symptomatic rice and grass plants in central and northern Brazil were studied in regard to pathogenicity on rice and cultural characteristics. For all isolates, only one type of lobed hyphopodia was observed both in the field and artificially inoculated plants. Perithecia were formed on artificial media and inoculated leaf sheaths. Hyphopodia were formed from ascosporic germ tubes. The hyphae under moist stress conditions produced dark brown chlamydospores that were initially hyaline. Large variation in the number of chlamydospores produced and duration of perithecia formation was observed among the isolates. Pathogenicity assays showed that 60-day old rice plants were more susceptible than 35-day old plants. The isolates from rice and grasses varied significantly in regard to disease severity on both rice seedlings and adult rice plants. In general, the isolates from rice were more aggressive than the isolates from grasses. Spontaneous infection of rice plants by ascosporic inoculum from perithecia on rice stubbles was observed in the greenhouse, suggesting their role as a source of primary inoculum in the field, which deserves further investigation. |
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Thesagro: |
Doença de planta; Fungo; Gaeumannomyces graminis; Oryza sativa. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/98356/1/tppv38.pdf
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Marc: |
LEADER 01938naa a2200217 a 4500
001 1981369
005 2014-02-27
008 2013 bl uuuu u00u1 u #d
100 1 $aPEIXOTO, C. N.
245 $aBiology of Gaeumannomyces graminis var. graminis isolates from rice and grasses and epidemiological aspects of crown sheath rot of rice.
260 $c2013
520 $aA collection of Gaeumannomyces graminis var. graminis isolates obtained from symptomatic rice and grass plants in central and northern Brazil were studied in regard to pathogenicity on rice and cultural characteristics. For all isolates, only one type of lobed hyphopodia was observed both in the field and artificially inoculated plants. Perithecia were formed on artificial media and inoculated leaf sheaths. Hyphopodia were formed from ascosporic germ tubes. The hyphae under moist stress conditions produced dark brown chlamydospores that were initially hyaline. Large variation in the number of chlamydospores produced and duration of perithecia formation was observed among the isolates. Pathogenicity assays showed that 60-day old rice plants were more susceptible than 35-day old plants. The isolates from rice and grasses varied significantly in regard to disease severity on both rice seedlings and adult rice plants. In general, the isolates from rice were more aggressive than the isolates from grasses. Spontaneous infection of rice plants by ascosporic inoculum from perithecia on rice stubbles was observed in the greenhouse, suggesting their role as a source of primary inoculum in the field, which deserves further investigation.
650 $aDoença de planta
650 $aFungo
650 $aGaeumannomyces graminis
650 $aOryza sativa
700 1 $aOTTONI, G.
700 1 $aFILIPPI, M. C. C.
700 1 $aSILVA-LOBO, V. L.
700 1 $aPRABHU, A. S.
773 $tTropical Plant Pathology, Brasília, DF$gv. 38, n. 6, p. 495-504, nov./dez. 2013.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
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Registro Completo
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Biblioteca(s): |
Embrapa Acre. |
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Data corrente: |
03/05/2005 |
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Data da última atualização: |
08/05/2023 |
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Tipo da produção científica: |
Comunicado Técnico/Recomendações Técnicas |
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Autoria: |
GONDIM, T. M. de S.; AMARAL, E. F. do; ARAÚJO, E. A. de. |
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Afiliação: |
TARCISIO MARCOS DE SOUZA GONDIM, CPAF-AC; EUFRAN FERREIRA DO AMARAL, CPAF-AC; EDSON ALVES DE ARAÚJO, SEAP/SEPRO. |
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Título: |
Aptidão para o cultivo do guaranazeiro no estado do Acre. |
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Ano de publicação: |
2001 |
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Fonte/Imprenta: |
Rio Branco, AC: Embrapa Acre, 2001. |
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Páginas: |
5 p. |
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Série: |
(Embrapa Acre. Comunicado técnico, 128). |
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ISSN: |
0100-8668 |
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Idioma: |
Português |
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Conteúdo: |
Esta publicação avalia as condições edafoclimáticas do Estado do Acre para a o cultivo do guaraná. |
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Palavras-Chave: |
Acre; Amazonia Occidental; Amazônia Ocidental; Aptitud del suelo; Factores ambientales; Plantación; Western Amazon. |
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Thesagro: |
Aptidão Agrícola; Condição Ambiental; Guaraná; Paullinia Cupana; Plantio. |
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Thesaurus NAL: |
Environmental factors; Planting; Soil suitability. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/CPAF-AC/9707/1/comunicado128.pdf
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Marc: |
LEADER 01073nam a2200349 a 4500
001 1500852
005 2023-05-08
008 2001 bl uuuu u0uu1 u #d
022 $a0100-8668
100 1 $aGONDIM, T. M. de S.
245 $aAptidão para o cultivo do guaranazeiro no estado do Acre.$h[electronic resource]
260 $aRio Branco, AC: Embrapa Acre$c2001
300 $a5 p.
490 $a(Embrapa Acre. Comunicado técnico, 128).
520 $aEsta publicação avalia as condições edafoclimáticas do Estado do Acre para a o cultivo do guaraná.
650 $aEnvironmental factors
650 $aPlanting
650 $aSoil suitability
650 $aAptidão Agrícola
650 $aCondição Ambiental
650 $aGuaraná
650 $aPaullinia Cupana
650 $aPlantio
653 $aAcre
653 $aAmazonia Occidental
653 $aAmazônia Ocidental
653 $aAptitud del suelo
653 $aFactores ambientales
653 $aPlantación
653 $aWestern Amazon
700 1 $aAMARAL, E. F. do
700 1 $aARAÚJO, E. A. de
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Registro original: |
Embrapa Acre (CPAF-AC) |
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Classificação |
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