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Registro Completo |
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Biblioteca(s): |
Embrapa Amazônia Ocidental. |
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Data corrente: |
22/03/2004 |
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Data da última atualização: |
16/10/2014 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
MARINO, W.; MARSCHNER, P.; GÖLLNITZ, I.; SCHROTH, G.; EMMERICH, S.; GASPAROTTO, L.; LEHMANN, J.; UGUEN, K.; LIEBEREI, R. |
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Afiliação: |
University of Hamburg; University of Dusseldorf; Embrapa Amazônia Ocidental; University of Bayreuth; Laboratoire d'Ecologie des Sols Tropicaux. |
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Título: |
Bactris gasipaes H.B.K.: production factors in agro-ecosystems. |
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Ano de publicação: |
2002 |
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Fonte/Imprenta: |
In: GERMAN-BRAZILIAN WORKSHOP ON NEOTROPICAL ECOSYSTEMS. ACHIEVEMENTS AND PROSPECTS OF COOPERATIVE RESEARCH, 2000, Hamburg. Proceedings... Hamburg: SHIFT: MADAM: WAVES, 2002. p. 298. |
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Idioma: |
Inglês |
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Conteúdo: |
According with the studies realized the litter from peach palm (pupunha) contibutes with only 110 g/ha or 0,1% of total soil C to the C budget of the system. On the other hand it produces high quantities of root exudates. About 16.500 kg/ha C or 15% of total soil C respectively are released into the soil. Taking into account the C loss by microbial respiration and root respiration peach palm contributes with 10.700 kg/ha or 10% of total soil C respectively to the C budget of the system. Compared to C from root exudates the quantity of C from microbial biobass under peach palm is low. Only 45 kg/ha or 0,0004% of the total C originate from the microbial biomass. |
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Palavras-Chave: |
Agrofloresta; Amazonas; Brasil; Manaus. |
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Thesagro: |
Bactris Gasipaes; Biomassa; Conservação do Solo; Cultivo Multiplo; Dióxido de Carbono; Floresta Tropical Úmida; Pupunha. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/110080/1/298.pdf
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Marc: |
LEADER 01680nam a2200337 a 4500
001 1673236
005 2014-10-16
008 2002 bl uuuu u00u1 u #d
100 1 $aMARINO, W.
245 $aBactris gasipaes H.B.K.$bproduction factors in agro-ecosystems.
260 $aIn: GERMAN-BRAZILIAN WORKSHOP ON NEOTROPICAL ECOSYSTEMS. ACHIEVEMENTS AND PROSPECTS OF COOPERATIVE RESEARCH, 2000, Hamburg. Proceedings... Hamburg: SHIFT: MADAM: WAVES, 2002. p. 298.$c2002
520 $aAccording with the studies realized the litter from peach palm (pupunha) contibutes with only 110 g/ha or 0,1% of total soil C to the C budget of the system. On the other hand it produces high quantities of root exudates. About 16.500 kg/ha C or 15% of total soil C respectively are released into the soil. Taking into account the C loss by microbial respiration and root respiration peach palm contributes with 10.700 kg/ha or 10% of total soil C respectively to the C budget of the system. Compared to C from root exudates the quantity of C from microbial biobass under peach palm is low. Only 45 kg/ha or 0,0004% of the total C originate from the microbial biomass.
650 $aBactris Gasipaes
650 $aBiomassa
650 $aConservação do Solo
650 $aCultivo Multiplo
650 $aDióxido de Carbono
650 $aFloresta Tropical Úmida
650 $aPupunha
653 $aAgrofloresta
653 $aAmazonas
653 $aBrasil
653 $aManaus
700 1 $aMARSCHNER, P.
700 1 $aGÖLLNITZ, I.
700 1 $aSCHROTH, G.
700 1 $aEMMERICH, S.
700 1 $aGASPAROTTO, L.
700 1 $aLEHMANN, J.
700 1 $aUGUEN, K.
700 1 $aLIEBEREI, R.
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Registro original: |
Embrapa Amazônia Ocidental (CPAA) |
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Registro Completo
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
06/11/2020 |
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Data da última atualização: |
06/11/2020 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 2 |
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Autoria: |
MARTINS, B. E. de M.; CHAIBUB, A. A.; CÔRTES, M. V. de C. B.; LOBO, V. L. da S.; FILIPPI, M. C. C. de. |
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Afiliação: |
BARBARA ESTEVAM DE MELO MARTINS; AMANDA ABDALLAH CHAIBUB; MARCIO VINICIUS DE C BARROS CORTES, CNPAF; VALACIA LEMES DA SILVA LOBO, CNPAF; MARTA CRISTINA CORSI DE FILIPPI, CNPAF. |
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Título: |
Characterization of bacterial isolates for sustainable rice blast control. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Revista Caatinga, v. 33, n. 3, p. 702-712, jul./set. 2020. |
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DOI: |
http://dx.doi.org/10.1590/1983-21252020v33n313rc. |
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Idioma: |
Inglês |
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Conteúdo: |
Rice blast (Magnaporthe oryzae) limits rice (Oryza sativa) grain yields worldwide. The objective of this investigation was to morphologically, biochemically, and molecularly characterize six bacterial isolates, BRM 32109, BRM 32110, BRM 32111, BRM 32112, BRM 32113, and BRM 32114, and to determine their potential as antagonists to M. oryzae. Morphological characterization was based on colony formation and color, Gram staining, and fluorescent pigment production. Biochemical studies were based on cellulase, chitinase, phosphatase, indoleacetic acid, and siderophore production, as well as biofilm formation. The molecular identification used specific primers for PCR amplification of the 16S rRNA region, followed by sequencing. The antagonism studies involved three experiments, which had randomized designs. Two of them were conducted in laboratory conditions, pairing bacterial colonies and M. oryzae, using bacterial filtrates, and the third was conducted in greenhouse conditions. BRM 32111 and BRM 32112 were identified as Pseudomonas sp., BRM 32113 as Burkholderia sp., BRM 32114 as Serratia sp., and BRM 32110 and BRM 32109 as Bacillus spp. BRM 32112, BRM 32111, and BRM 32113 inhibited the colony of M. oryzae by 68%, 65%, and 48%, respectively. The bacterial suspensions of the BRM 32111, BRM 32112, and BRM 3212 filtrates suppressed leaf blast by 81.0, 79.2, and 66.3%, respectively. BRM 32111 and BRM 32112 were determined to be antagonists of M. oryzae and were found to solubilize phosphate, produce siderophores and cellulose, form biofilms, and suppress leaf blast. These isolates should be further investigated as potential biological control agents for leaf blast control. MenosRice blast (Magnaporthe oryzae) limits rice (Oryza sativa) grain yields worldwide. The objective of this investigation was to morphologically, biochemically, and molecularly characterize six bacterial isolates, BRM 32109, BRM 32110, BRM 32111, BRM 32112, BRM 32113, and BRM 32114, and to determine their potential as antagonists to M. oryzae. Morphological characterization was based on colony formation and color, Gram staining, and fluorescent pigment production. Biochemical studies were based on cellulase, chitinase, phosphatase, indoleacetic acid, and siderophore production, as well as biofilm formation. The molecular identification used specific primers for PCR amplification of the 16S rRNA region, followed by sequencing. The antagonism studies involved three experiments, which had randomized designs. Two of them were conducted in laboratory conditions, pairing bacterial colonies and M. oryzae, using bacterial filtrates, and the third was conducted in greenhouse conditions. BRM 32111 and BRM 32112 were identified as Pseudomonas sp., BRM 32113 as Burkholderia sp., BRM 32114 as Serratia sp., and BRM 32110 and BRM 32109 as Bacillus spp. BRM 32112, BRM 32111, and BRM 32113 inhibited the colony of M. oryzae by 68%, 65%, and 48%, respectively. The bacterial suspensions of the BRM 32111, BRM 32112, and BRM 3212 filtrates suppressed leaf blast by 81.0, 79.2, and 66.3%, respectively. BRM 32111 and BRM 32112 were determined to be antagonists of M. oryzae and were found to solubilize ... Mostrar Tudo |
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Palavras-Chave: |
Bacterial isolates. |
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Thesagro: |
Antagonismo; Arroz; Brusone; Controle Biológico; Doença de Planta; Oryza Sativa; Pyricularia Oryzae. |
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Thesaurus NAL: |
Biological control; Drug antagonism; Magnaporthe oryzae; Rice. |
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Categoria do assunto: |
H Saúde e Patologia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/217545/1/rcaatinga-2020.pdf
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Marc: |
LEADER 02659naa a2200325 a 4500
001 2126355
005 2020-11-06
008 2020 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1590/1983-21252020v33n313rc.$2DOI
100 1 $aMARTINS, B. E. de M.
245 $aCharacterization of bacterial isolates for sustainable rice blast control.$h[electronic resource]
260 $c2020
520 $aRice blast (Magnaporthe oryzae) limits rice (Oryza sativa) grain yields worldwide. The objective of this investigation was to morphologically, biochemically, and molecularly characterize six bacterial isolates, BRM 32109, BRM 32110, BRM 32111, BRM 32112, BRM 32113, and BRM 32114, and to determine their potential as antagonists to M. oryzae. Morphological characterization was based on colony formation and color, Gram staining, and fluorescent pigment production. Biochemical studies were based on cellulase, chitinase, phosphatase, indoleacetic acid, and siderophore production, as well as biofilm formation. The molecular identification used specific primers for PCR amplification of the 16S rRNA region, followed by sequencing. The antagonism studies involved three experiments, which had randomized designs. Two of them were conducted in laboratory conditions, pairing bacterial colonies and M. oryzae, using bacterial filtrates, and the third was conducted in greenhouse conditions. BRM 32111 and BRM 32112 were identified as Pseudomonas sp., BRM 32113 as Burkholderia sp., BRM 32114 as Serratia sp., and BRM 32110 and BRM 32109 as Bacillus spp. BRM 32112, BRM 32111, and BRM 32113 inhibited the colony of M. oryzae by 68%, 65%, and 48%, respectively. The bacterial suspensions of the BRM 32111, BRM 32112, and BRM 3212 filtrates suppressed leaf blast by 81.0, 79.2, and 66.3%, respectively. BRM 32111 and BRM 32112 were determined to be antagonists of M. oryzae and were found to solubilize phosphate, produce siderophores and cellulose, form biofilms, and suppress leaf blast. These isolates should be further investigated as potential biological control agents for leaf blast control.
650 $aBiological control
650 $aDrug antagonism
650 $aMagnaporthe oryzae
650 $aRice
650 $aAntagonismo
650 $aArroz
650 $aBrusone
650 $aControle Biológico
650 $aDoença de Planta
650 $aOryza Sativa
650 $aPyricularia Oryzae
653 $aBacterial isolates
700 1 $aCHAIBUB, A. A.
700 1 $aCÔRTES, M. V. de C. B.
700 1 $aLOBO, V. L. da S.
700 1 $aFILIPPI, M. C. C. de
773 $tRevista Caatinga$gv. 33, n. 3, p. 702-712, jul./set. 2020.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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