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Biblioteca(s): |
Embrapa Meio Ambiente. |
Data corrente: |
03/10/2013 |
Data da última atualização: |
03/10/2013 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
SANTOS, M. de S. dos; GHINI, R.; FERNANDES, B. V.; SILVA, C. A. |
Afiliação: |
MICHELLI DE SOUZA DOS SANTOS, FCA-UNESP; RAQUEL GHINI, CNPMA; B. V. FERNANDES, V&M Florestal; CARLOS ALBERTO SILVA, UFLA. |
Título: |
Increased carbon dioxide concentration in the air reduces the severity of Ceratocystis wilt in Eucalyptus clonal plantlets. |
Ano de publicação: |
2013 |
Fonte/Imprenta: |
Australasian Plant Pathology, Melbourne, v. 42, n. 5, p. 592-599, 2013. |
Idioma: |
Inglês |
Conteúdo: |
The increased atmospheric carbon dioxide concentrations expected in the coming decades will result in changes in host-pathogen interactions. The present study aimed to evaluate the effect of high concentrations of CO2 in the air on the development of Ceratocystis wilt in two Eucalyptus clones (a hybrid of Eucalyptus urophylla and a cross between E. urophylla x E. camaldulensis). The clonal plantlets were cultivated under CO2 concentrations of 394?±?10 ?mol/mol (environmental condition), 553?±?15 ?mol/mol and 878?±?70 ?mol/mol in a controlled environment for 70 days and inoculated with Ceratocystis fimbriata conidia. In the treatments with 553 and 878 ?mol/mol, the plants of both clones had greater growth (215 % and 219 % increases in leaf area and 22 % and 24 % in stem diameter, respectively), a longer incubation period (65 % for both CO2 concentrations) and less disease severity (48 % and 78 % reduction, respectively) on average compared with the plants cultivated at 394 ?mol/mol. The carbon content of the leaves was greater at the higher CO2 concentrations; however, there was no difference in the C content of the stems and roots. The nitrogen content of the leaves, stems and roots were lower in the environments with higher CO2 concentrations. The results show that an increased CO2 concentration can reduce the severity of Ceratocystis wilt and stimulate the growth of Eucalyptus clonal plantlets. |
Palavras-Chave: |
CO2. |
Thesagro: |
Atmosfera; Ceratocystis fimbriata; Clima; Dióxido de carbono; Doença de planta; Eucalipto. |
Thesaurus Nal: |
Carbon dioxide; Climate change; Eucalyptus; Plant diseases and disorders. |
Categoria do assunto: |
H Saúde e Patologia |
Marc: |
LEADER 02295naa a2200289 a 4500 001 1967710 005 2013-10-03 008 2013 bl uuuu u00u1 u #d 100 1 $aSANTOS, M. de S. dos 245 $aIncreased carbon dioxide concentration in the air reduces the severity of Ceratocystis wilt in Eucalyptus clonal plantlets.$h[electronic resource] 260 $c2013 520 $aThe increased atmospheric carbon dioxide concentrations expected in the coming decades will result in changes in host-pathogen interactions. The present study aimed to evaluate the effect of high concentrations of CO2 in the air on the development of Ceratocystis wilt in two Eucalyptus clones (a hybrid of Eucalyptus urophylla and a cross between E. urophylla x E. camaldulensis). The clonal plantlets were cultivated under CO2 concentrations of 394?±?10 ?mol/mol (environmental condition), 553?±?15 ?mol/mol and 878?±?70 ?mol/mol in a controlled environment for 70 days and inoculated with Ceratocystis fimbriata conidia. In the treatments with 553 and 878 ?mol/mol, the plants of both clones had greater growth (215 % and 219 % increases in leaf area and 22 % and 24 % in stem diameter, respectively), a longer incubation period (65 % for both CO2 concentrations) and less disease severity (48 % and 78 % reduction, respectively) on average compared with the plants cultivated at 394 ?mol/mol. The carbon content of the leaves was greater at the higher CO2 concentrations; however, there was no difference in the C content of the stems and roots. The nitrogen content of the leaves, stems and roots were lower in the environments with higher CO2 concentrations. The results show that an increased CO2 concentration can reduce the severity of Ceratocystis wilt and stimulate the growth of Eucalyptus clonal plantlets. 650 $aCarbon dioxide 650 $aClimate change 650 $aEucalyptus 650 $aPlant diseases and disorders 650 $aAtmosfera 650 $aCeratocystis fimbriata 650 $aClima 650 $aDióxido de carbono 650 $aDoença de planta 650 $aEucalipto 653 $aCO2 700 1 $aGHINI, R. 700 1 $aFERNANDES, B. V. 700 1 $aSILVA, C. A. 773 $tAustralasian Plant Pathology, Melbourne$gv. 42, n. 5, p. 592-599, 2013.
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Embrapa Meio Ambiente (CNPMA) |
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Registro Completo
Biblioteca(s): |
Embrapa Solos. |
Data corrente: |
22/11/2002 |
Data da última atualização: |
22/11/2002 |
Autoria: |
DIAS, A. S.; SILVA, J. R. C.; FREITAS, P. L. de. |
Título: |
Erosividade das chuvas de Fortaleza (CE): 1. aproximação. |
Ano de publicação: |
2000 |
Fonte/Imprenta: |
In: REUNIAO BRASILEIRA DE MANEJO E CONSERVAÇÃO DO SOLO E DA ÁGUA, 13., 2000, Ilhéus. 500 anos de uso do solo no Brasil: [anais...]. Ilhéus: CEPLAC: CEPEC, 2000. |
Idioma: |
Português |
Notas: |
1 CD-ROM. |
Categoria do assunto: |
-- |
Marc: |
LEADER 00521naa a2200145 a 4500 001 1337060 005 2002-11-22 008 2000 bl uuuu u00u1 u #d 100 1 $aDIAS, A. S. 245 $aErosividade das chuvas de Fortaleza (CE)$b1. aproximação. 260 $c2000 500 $a1 CD-ROM. 700 1 $aSILVA, J. R. C. 700 1 $aFREITAS, P. L. de 773 $tIn: REUNIAO BRASILEIRA DE MANEJO E CONSERVAÇÃO DO SOLO E DA ÁGUA, 13., 2000, Ilhéus. 500 anos de uso do solo no Brasil: [anais...]. Ilhéus: CEPLAC: CEPEC, 2000.
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