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Registro Completo |
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Biblioteca(s): |
Embrapa Agroindústria Tropical; Embrapa Florestas. |
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Data corrente: |
27/11/2023 |
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Data da última atualização: |
01/12/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SANTOS, M. E. C. DOS; MELO, R. R. DE; CORREIA, D.; SOUSA, J. A. de; SANTOS, A. M.; SILVA, A. K. V. DA; PAULA, E. A. DE O.; ALVES, A. R.; SCATOLINO, M. V.; RUSCH, F.; MASCARENHAS, A. R. P.; PIMENTA, A. S.; STANGERLIN, D. M. |
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Afiliação: |
MÁRCIA ELLEN CHAGAS DOS SANTOS, Federal University of the Semiarid; RAFAEL RODOLFO DE MELO, Federal University of the Semiarid; DIVA CORREIA, CNPAT; JOAO ALENCAR DE SOUSA, CNPAT; ALISSON MOURA SANTOS, CNPF; ANA KARLA VIEIRA DA SILVA, Federal University of the Semiarid; EDGLEY ALVES DE OLIVEIRA PAULA, Federal University of the Semiarid; ALLYSON ROCHA ALVES, Federal University of the Semiarid; MÁRIO VANOLI SCATOLINO, Federal University of the Semiarid; FERNANDO RUSCH, Federal University of the Semiarid; ADRIANO REIS PRAZERES MASCARENHAS, Federal University of Rondônia; ALEXANDRE SANTOS PIMENTA, Federal University of Rio Grande do Norte; DIEGO MARTINS STANGERLIN, Federal University of Mato Grosso. |
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Título: |
Variation in the Basic Density of Woods Produced in the Brazilian Semiarid Region Subjected to Different Irrigation Regimes. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Forests, 14, 2168, 2023. |
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DOI: |
https:// doi.org/10.3390/f14112168 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: The present work aimed to evaluate the wood of fourteen genetic materials (nine species,
between native and exotic, and five clones of Eucalyptus) cultivated under two post-planting irrigation
regimes in the Brazilian semiarid region. For each genotype, six trees (11 years old) were selected
and subjected to two initial irrigation regimes (up to 12 months and up to 36 months) after planting.
Discs of different stem heights were taken: 0% (base), breast height (DBH), 20%, 40%, 60%, 80%, and
100%. Samples were extracted along the radial axis of each disk at three regions (the pith-adjacent
region, intermediate region, and bark-adjacent region). Samples were subsequently saturated in
water to determine their density via the water displacement method. The irrigation systems caused
changes in the pattern of radial and longitudinal variation in the clones regarding the proportion of
woody material in the stem. Among the native species, Angico stood out with a high density and
little juvenile wood, and Pau d’arco, with a low density and a high rate of juvenile wood. Among the
exotic species, Nim presented a high density and a low rate of juvenile wood, and Chichá presented
a high rate of juvenile wood and a low density. In the Eucalyptus hybrids, VE38 stood out with a high
density. Overall, there was an influence from irrigation management, observed with greater intensity
in exotic species for Mahogany and Acacia and for the VE41 and AEC1528 clones of Eucalyptus. The
values of basic densities in the trees varied from 0.35 to 0.85 g·cm−3. There was good adaptation of
native and exotic species and clones to the planting area in the Semiarid region. MenosAbstract: The present work aimed to evaluate the wood of fourteen genetic materials (nine species,
between native and exotic, and five clones of Eucalyptus) cultivated under two post-planting irrigation
regimes in the Brazilian semiarid region. For each genotype, six trees (11 years old) were selected
and subjected to two initial irrigation regimes (up to 12 months and up to 36 months) after planting.
Discs of different stem heights were taken: 0% (base), breast height (DBH), 20%, 40%, 60%, 80%, and
100%. Samples were extracted along the radial axis of each disk at three regions (the pith-adjacent
region, intermediate region, and bark-adjacent region). Samples were subsequently saturated in
water to determine their density via the water displacement method. The irrigation systems caused
changes in the pattern of radial and longitudinal variation in the clones regarding the proportion of
woody material in the stem. Among the native species, Angico stood out with a high density and
little juvenile wood, and Pau d’arco, with a low density and a high rate of juvenile wood. Among the
exotic species, Nim presented a high density and a low rate of juvenile wood, and Chichá presented
a high rate of juvenile wood and a low density. In the Eucalyptus hybrids, VE38 stood out with a high
density. Overall, there was an influence from irrigation management, observed with greater intensity
in exotic species for Mahogany and Acacia and for the VE41 and AEC1528 clones of Eucalyptus. The
valu... Mostrar Tudo |
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Palavras-Chave: |
Escassez de água; Plantações florestais; Qualidade da madeira; Variação de densidade; Variation of density; Water scarcity. |
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Thesaurus Nal: |
Forest plantations; Wood quality. |
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Categoria do assunto: |
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K Ciência Florestal e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1158744/1/ART-23054.pdf
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Marc: |
LEADER 02806naa a2200373 a 4500
001 2158744
005 2023-12-01
008 2023 bl uuuu u00u1 u #d
024 7 $ahttps:// doi.org/10.3390/f14112168$2DOI
100 1 $aSANTOS, M. E. C. DOS
245 $aVariation in the Basic Density of Woods Produced in the Brazilian Semiarid Region Subjected to Different Irrigation Regimes.$h[electronic resource]
260 $c2023
520 $aAbstract: The present work aimed to evaluate the wood of fourteen genetic materials (nine species, between native and exotic, and five clones of Eucalyptus) cultivated under two post-planting irrigation regimes in the Brazilian semiarid region. For each genotype, six trees (11 years old) were selected and subjected to two initial irrigation regimes (up to 12 months and up to 36 months) after planting. Discs of different stem heights were taken: 0% (base), breast height (DBH), 20%, 40%, 60%, 80%, and 100%. Samples were extracted along the radial axis of each disk at three regions (the pith-adjacent region, intermediate region, and bark-adjacent region). Samples were subsequently saturated in water to determine their density via the water displacement method. The irrigation systems caused changes in the pattern of radial and longitudinal variation in the clones regarding the proportion of woody material in the stem. Among the native species, Angico stood out with a high density and little juvenile wood, and Pau d’arco, with a low density and a high rate of juvenile wood. Among the exotic species, Nim presented a high density and a low rate of juvenile wood, and Chichá presented a high rate of juvenile wood and a low density. In the Eucalyptus hybrids, VE38 stood out with a high density. Overall, there was an influence from irrigation management, observed with greater intensity in exotic species for Mahogany and Acacia and for the VE41 and AEC1528 clones of Eucalyptus. The values of basic densities in the trees varied from 0.35 to 0.85 g·cm−3. There was good adaptation of native and exotic species and clones to the planting area in the Semiarid region.
650 $aForest plantations
650 $aWood quality
653 $aEscassez de água
653 $aPlantações florestais
653 $aQualidade da madeira
653 $aVariação de densidade
653 $aVariation of density
653 $aWater scarcity
700 1 $aMELO, R. R. DE
700 1 $aCORREIA, D.
700 1 $aSOUSA, J. A. de
700 1 $aSANTOS, A. M.
700 1 $aSILVA, A. K. V. DA
700 1 $aPAULA, E. A. DE O.
700 1 $aALVES, A. R.
700 1 $aSCATOLINO, M. V.
700 1 $aRUSCH, F.
700 1 $aMASCARENHAS, A. R. P.
700 1 $aPIMENTA, A. S.
700 1 $aSTANGERLIN, D. M.
773 $tForests, 14, 2168, 2023.
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Registro original: |
Embrapa Agroindústria Tropical (CNPAT) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Caprinos e Ovinos. Para informações adicionais entre em contato com cnpc.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
09/12/2019 |
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Data da última atualização: |
09/12/2019 |
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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: |
SANTOS, J. M. L. dos; VASCONCELOS, J. F.; FROTA, G. A.; FREITAS, E. P. de; TEIXEIRA, M.; VIEIRA, L. da S.; BEVILAQUA, C. M. L.; MONTEIRO, J. P. |
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Afiliação: |
JESSICA MARIA LEITE DOS SANTOS, Pós-graduação - INTA / UNINTA - Sobral, CE, Brazil; JANAÉLIA FERREIRA VASCONCELOS, Pós-graduação - INTA / UNINTA - Sobral, CE, Brazil; GRACIELLE ARAÚJO FROTA, Pós-graduação - INTA / UNINTA - Sobral, CE, Brazil; EDILSON PEREIRA DE FREITAS, Pós-graduação - INTA / UNINTA - Sobral, CE, Brazil; MARCEL TEIXEIRA, CNPC; LUIZ DA SILVA VIEIRA, CNPC; CLAUDIA MARIA LEAL BEVILAQUA, Pós-graduação - Universidade Estadual Vale do Acaraú (UVA) - Sobral, CE, Brazil; JOMAR PATRICIO MONTEIRO, CNPC. |
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Título: |
Quantitative molecular diagnosis of levamisole resistance in populations of Haemonchus contortus. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Experimental Parasitology, v. 205, article 107734, Aug. 2019. |
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DOI: |
http://dx.doi.org/10.1016/j.exppara.2019.107734 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: Parasitism by Haemonchus contortus is one of the main limiting factors in small ruminant production around the globe. Although several studies suggest the use of integrated management practices, these parasites have been controlled essentially with synthetic anthelmintic drugs. The resistance mechanism against the imidazothiazole derivative levamisole in Haemonchus contortus has not been fully described. Recently, resistance was associated with a 63bp deletion in the Hco-acr-8b gene that encodes a subunit for a nicotinic acetylcholine receptor. This study aimed to standardize a real time PCR (qPCR) protocol for levamisole resistance diagnosis in H. contortus populations based on this polymorphism and use it to characterize 23 field H. contortus populations obtained from different localities of Ceará State, Northeast Brazil. In addition, two populations of H. contortus were used as a standard of susceptibility and resistance, Inbred Strain Edinburgh (ISE) and Kokstad, respectively. Larval development tests (LDT) were performed on five field isolates and both EC50 and EC95 were estimated. LDT EC95 values provided a wider interval between susceptible and resistant populations than EC50 values (EC95?=?1.96-57.93??M; EC50?=?0.05-0.39??M), and were found to be more appropriate for differentiating them. Real time PCR results showed resistance allele frequencies ranged from 20.9 to 76.7%. Our results suggest that levamisole resistance may be present in field populations but it is not as widespread as benzimidazole resistance. This methodology may be useful to monitor levamisole resistance in field populations of H. contortus. MenosAbstract: Parasitism by Haemonchus contortus is one of the main limiting factors in small ruminant production around the globe. Although several studies suggest the use of integrated management practices, these parasites have been controlled essentially with synthetic anthelmintic drugs. The resistance mechanism against the imidazothiazole derivative levamisole in Haemonchus contortus has not been fully described. Recently, resistance was associated with a 63bp deletion in the Hco-acr-8b gene that encodes a subunit for a nicotinic acetylcholine receptor. This study aimed to standardize a real time PCR (qPCR) protocol for levamisole resistance diagnosis in H. contortus populations based on this polymorphism and use it to characterize 23 field H. contortus populations obtained from different localities of Ceará State, Northeast Brazil. In addition, two populations of H. contortus were used as a standard of susceptibility and resistance, Inbred Strain Edinburgh (ISE) and Kokstad, respectively. Larval development tests (LDT) were performed on five field isolates and both EC50 and EC95 were estimated. LDT EC95 values provided a wider interval between susceptible and resistant populations than EC50 values (EC95?=?1.96-57.93??M; EC50?=?0.05-0.39??M), and were found to be more appropriate for differentiating them. Real time PCR results showed resistance allele frequencies ranged from 20.9 to 76.7%. Our results suggest that levamisole resistance may be present in field populations bu... Mostrar Tudo |
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Palavras-Chave: |
Anthelmintic resistance; Antinematodal Agents; Drug effects; Haemonchiasis; Nematode parasite; Real-time PCR. |
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Thesaurus NAL: |
Benzimidazoles; Drug resistance; Gene frequency; Genetics; Helminths; Levamisole; Nematode larvae; Parasitology; Pharmacology; Sequence alignment; Sheep diseases; Tetramisole. |
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Categoria do assunto: |
L Ciência Animal e Produtos de Origem Animal |
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Marc: |
LEADER 02921naa a2200433 a 4500
001 2116311
005 2019-12-09
008 2019 bl uuuu u00u1 u #d
024 7 $ahttp://dx.doi.org/10.1016/j.exppara.2019.107734$2DOI
100 1 $aSANTOS, J. M. L. dos
245 $aQuantitative molecular diagnosis of levamisole resistance in populations of Haemonchus contortus.$h[electronic resource]
260 $c2019
520 $aAbstract: Parasitism by Haemonchus contortus is one of the main limiting factors in small ruminant production around the globe. Although several studies suggest the use of integrated management practices, these parasites have been controlled essentially with synthetic anthelmintic drugs. The resistance mechanism against the imidazothiazole derivative levamisole in Haemonchus contortus has not been fully described. Recently, resistance was associated with a 63bp deletion in the Hco-acr-8b gene that encodes a subunit for a nicotinic acetylcholine receptor. This study aimed to standardize a real time PCR (qPCR) protocol for levamisole resistance diagnosis in H. contortus populations based on this polymorphism and use it to characterize 23 field H. contortus populations obtained from different localities of Ceará State, Northeast Brazil. In addition, two populations of H. contortus were used as a standard of susceptibility and resistance, Inbred Strain Edinburgh (ISE) and Kokstad, respectively. Larval development tests (LDT) were performed on five field isolates and both EC50 and EC95 were estimated. LDT EC95 values provided a wider interval between susceptible and resistant populations than EC50 values (EC95?=?1.96-57.93??M; EC50?=?0.05-0.39??M), and were found to be more appropriate for differentiating them. Real time PCR results showed resistance allele frequencies ranged from 20.9 to 76.7%. Our results suggest that levamisole resistance may be present in field populations but it is not as widespread as benzimidazole resistance. This methodology may be useful to monitor levamisole resistance in field populations of H. contortus.
650 $aBenzimidazoles
650 $aDrug resistance
650 $aGene frequency
650 $aGenetics
650 $aHelminths
650 $aLevamisole
650 $aNematode larvae
650 $aParasitology
650 $aPharmacology
650 $aSequence alignment
650 $aSheep diseases
650 $aTetramisole
653 $aAnthelmintic resistance
653 $aAntinematodal Agents
653 $aDrug effects
653 $aHaemonchiasis
653 $aNematode parasite
653 $aReal-time PCR
700 1 $aVASCONCELOS, J. F.
700 1 $aFROTA, G. A.
700 1 $aFREITAS, E. P. de
700 1 $aTEIXEIRA, M.
700 1 $aVIEIRA, L. da S.
700 1 $aBEVILAQUA, C. M. L.
700 1 $aMONTEIRO, J. P.
773 $tExperimental Parasitology$gv. 205, article 107734, Aug. 2019.
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