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Registro Completo |
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
20/07/2023 |
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Data da última atualização: |
20/07/2023 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SOBREIRA, A. M.; SIMOES, W. L.; NUNES, G. H. de S.; SILVEIRA, L. M. da; ANTONIO, R. P. |
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Afiliação: |
ALYSSON M. SOBREIRA, Universidade Federal Rural de Pernambuco, Serra Talhada, PE; WELSON LIMA SIMOES, CPATSA; GLAUBER H. DE S. NUNES, Universidade Federal Rural do Semi-Árido, Mossoró, RN; LINDOMAR M. DA SILVEIRA, Universidade Federal Rural do Semi-Árido, Mossoró, RN; RAFAELA PRISCILA ANTONIO, CPATSA. |
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Título: |
Water regimes on the development of accessions of the Manihot genus. |
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Ano de publicação: |
2023 |
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Fonte/Imprenta: |
Revista Caatinga, v. 36, n. 3, p. 711-722, jul./set. 2023. |
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ISSN: |
1983-2125 |
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DOI: |
http://dx.doi.org/10.1590/1983-21252023v36n323rc |
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Idioma: |
Inglês |
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Conteúdo: |
The objective of this work was to select water deficit-tolerant accessions of the genus Manihot, through morphological characters under different water regimes. The experiment was conducted in a randomized block design, using a split-plot arrangement with plots consisting of tree water regimes (simulated rainfall and water depth of 100 and 20% crop evapotranspiration (ETc)), and subplots consisting of eight accessions of the genus Manihot(Gema-de-Ovo and Engana-Ladrão from the species M. esculenta Crantz, and BGMS-115, BGMS-110, BGMS-102, BGMS-79, BGMS-24, and BGMS-48 from Manihot sp.). The accessions were evaluated considering two crop cycles: the first had 120 and 60 days from the application of the treatments. Plant height, stem diameter, number of leaves, leaf lobe length and shoot dry mass production were evaluated. For each cropping cycle, a split-plot analysis of variance was performed. The highest genotypic means were expressed by the accessions BGMS-115, BGMS-102, BGMS-79 and BGMS-24 for most of the analyzed variables, regardless of the cultivation cycle. For the characteristic shoot dry mass production, accessions BGMS-102 and BGMS-79 showed the best performances under conditions of limited water regime (20% ETc), regardless of the cropping cycle. Accession BGMS-102 was also grouped in the group with the highest genotypic means, for this trait, in treatments with rain simulation and 100% ETc, in the first cycle, demonstrating that, under stress conditions, this accession is an option to tolerate low water precipitation and responds well when higher precipitation occurs. MenosThe objective of this work was to select water deficit-tolerant accessions of the genus Manihot, through morphological characters under different water regimes. The experiment was conducted in a randomized block design, using a split-plot arrangement with plots consisting of tree water regimes (simulated rainfall and water depth of 100 and 20% crop evapotranspiration (ETc)), and subplots consisting of eight accessions of the genus Manihot(Gema-de-Ovo and Engana-Ladrão from the species M. esculenta Crantz, and BGMS-115, BGMS-110, BGMS-102, BGMS-79, BGMS-24, and BGMS-48 from Manihot sp.). The accessions were evaluated considering two crop cycles: the first had 120 and 60 days from the application of the treatments. Plant height, stem diameter, number of leaves, leaf lobe length and shoot dry mass production were evaluated. For each cropping cycle, a split-plot analysis of variance was performed. The highest genotypic means were expressed by the accessions BGMS-115, BGMS-102, BGMS-79 and BGMS-24 for most of the analyzed variables, regardless of the cultivation cycle. For the characteristic shoot dry mass production, accessions BGMS-102 and BGMS-79 showed the best performances under conditions of limited water regime (20% ETc), regardless of the cropping cycle. Accession BGMS-102 was also grouped in the group with the highest genotypic means, for this trait, in treatments with rain simulation and 100% ETc, in the first cycle, demonstrating that, under stress conditions, this acc... Mostrar Tudo |
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Palavras-Chave: |
Gênero Manihot; Seleção de acessos; Semiárido; Tolerância ao déficit hídrico. |
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Thesagro: |
Mandioca; Manihot Esculenta; Morfologia Vegetal; Solo. |
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Thesaurus Nal: |
Manihot; Soil water deficit. |
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Categoria do assunto: |
X Pesquisa, Tecnologia e Engenharia |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1155070/1/Water-regimes-on-the-development-of-accessions-of-the-Manihot-genus-2023.pdf
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Marc: |
LEADER 02528naa a2200313 a 4500
001 2155070
005 2023-07-20
008 2023 bl uuuu u00u1 u #d
022 $a1983-2125
024 7 $ahttp://dx.doi.org/10.1590/1983-21252023v36n323rc$2DOI
100 1 $aSOBREIRA, A. M.
245 $aWater regimes on the development of accessions of the Manihot genus.$h[electronic resource]
260 $c2023
520 $aThe objective of this work was to select water deficit-tolerant accessions of the genus Manihot, through morphological characters under different water regimes. The experiment was conducted in a randomized block design, using a split-plot arrangement with plots consisting of tree water regimes (simulated rainfall and water depth of 100 and 20% crop evapotranspiration (ETc)), and subplots consisting of eight accessions of the genus Manihot(Gema-de-Ovo and Engana-Ladrão from the species M. esculenta Crantz, and BGMS-115, BGMS-110, BGMS-102, BGMS-79, BGMS-24, and BGMS-48 from Manihot sp.). The accessions were evaluated considering two crop cycles: the first had 120 and 60 days from the application of the treatments. Plant height, stem diameter, number of leaves, leaf lobe length and shoot dry mass production were evaluated. For each cropping cycle, a split-plot analysis of variance was performed. The highest genotypic means were expressed by the accessions BGMS-115, BGMS-102, BGMS-79 and BGMS-24 for most of the analyzed variables, regardless of the cultivation cycle. For the characteristic shoot dry mass production, accessions BGMS-102 and BGMS-79 showed the best performances under conditions of limited water regime (20% ETc), regardless of the cropping cycle. Accession BGMS-102 was also grouped in the group with the highest genotypic means, for this trait, in treatments with rain simulation and 100% ETc, in the first cycle, demonstrating that, under stress conditions, this accession is an option to tolerate low water precipitation and responds well when higher precipitation occurs.
650 $aManihot
650 $aSoil water deficit
650 $aMandioca
650 $aManihot Esculenta
650 $aMorfologia Vegetal
650 $aSolo
653 $aGênero Manihot
653 $aSeleção de acessos
653 $aSemiárido
653 $aTolerância ao déficit hídrico
700 1 $aSIMOES, W. L.
700 1 $aNUNES, G. H. de S.
700 1 $aSILVEIRA, L. M. da
700 1 $aANTONIO, R. P.
773 $tRevista Caatinga$gv. 36, n. 3, p. 711-722, jul./set. 2023.
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Registro original: |
Embrapa Semiárido (CPATSA) |
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Biblioteca(s): |
Embrapa Unidades Centrais. |
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Data corrente: |
19/06/2018 |
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Data da última atualização: |
19/06/2018 |
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Autoria: |
MOLINARI, P. C. C.; BLAGITZ, M. G.; DELLA LIBERA, A. M. M. P.; BATISTA, C. F.; SOUZA, F. N. |
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Afiliação: |
Paula C. C. Molinari, Veterinary Clinical Immunology Research Group/DCMD/FMVZ/Universidade de São Paulo; Maiara G. Blagitz, Veterinary Clinical Immunology Research Group/DCMD/FMVZ/Universidade de São Paulo; Alice M. M. P. Della Libera, Veterinary Clinical Immunology Research Group/DCMD/FMVZ/Universidade de São Paulo; Camila F. Batista, Veterinary Clinical Immunology Research Group/DCMD/FMVZ/Universidade de São Paulo; Fernando N. Souza, Veterinary Clinical Immunology Research Group/DCMD/FMVZ/Universidade de São Paulo. |
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Título: |
Intracellular reactive oxygen species production and phagocytosis of Staphylococcus aureus by milk neutrophils as tool to diagnose mastitis and identify susceptible dairy cows. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Pesquisa Veterinária Brasileira, Rio de Janeiro, v. 38, n. 4, p. 659-664, abril 2018 |
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Idioma: |
Inglês |
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Notas: |
Título em português: Produção intracelular de espécies reativas de oxigênio e fagocitose de Staphylococcus aureus por neutrófilos lácteos como ferramentas para o diagnóstico da mastite e identificação de vacas leiteiras susceptíveis à mastite. |
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Conteúdo: |
The immune response capacity of the mammary gland plays a major role to determine if mastitis will or not be established. Thus, we hypothesize that a better understanding of polymorphonuclear neutrophil leukocyte (PMN) function will elucidate mechanisms that will improve our knowledge of how we could avoid an inflammatory process by increasing the immune capacity of the cow, and even further, to search for a tool to diagnose mastitis or a possible way to select and identify non-susceptible animals. The present study utilized 112 quarters from 28 Holstein dairy cows that were divided into quarters milk samples with somatic cell count (SCC) <2×105 cells mL-1 (n=72) and SCC >2×105 cells mL-1 (n=40). The percentages of milk PMNs and the levels of intracellular reactive oxygen species (ROS) and the phagocytosis of Staphylococcus aureus by milk neutrophils were evaluated by flow cytometry. Our results showed a higher percentage of neutrophils in quarter milk samples with high SCC (P=0.0003), and this group also had a significantly higher percentage of neutrophils that produced ROS (P=0.008). On the other hand, the phagocytosis intensity of S. aureus by milk neutrophils was higher in quarters with low SCC (P=0.003), suggesting a better mammary gland immunity against invading pathogens. Analyzing the results of the predictive values of the measured PMN functions, they cannot be used isolated as a good diagnosis test since none of them had a satisfactory sensitivity and specificity values, which was also confirmed by the Youden index values being far from one. In conclusion, the assessment of milk bovine neutrophil functions could improve our understanding of the cellular basis of mastitis. Although, the intracellular ROS production and S. aureus phagocytosis by milk neutrophil did not have high predictive values to detect intramammary infections, our results strengthen the idea that that poor bovine mammary gland neutrophil phagocytic ability may be associated with high SCC, and might be considered to identify susceptible dairy cows to mastitis. MenosThe immune response capacity of the mammary gland plays a major role to determine if mastitis will or not be established. Thus, we hypothesize that a better understanding of polymorphonuclear neutrophil leukocyte (PMN) function will elucidate mechanisms that will improve our knowledge of how we could avoid an inflammatory process by increasing the immune capacity of the cow, and even further, to search for a tool to diagnose mastitis or a possible way to select and identify non-susceptible animals. The present study utilized 112 quarters from 28 Holstein dairy cows that were divided into quarters milk samples with somatic cell count (SCC) <2×105 cells mL-1 (n=72) and SCC >2×105 cells mL-1 (n=40). The percentages of milk PMNs and the levels of intracellular reactive oxygen species (ROS) and the phagocytosis of Staphylococcus aureus by milk neutrophils were evaluated by flow cytometry. Our results showed a higher percentage of neutrophils in quarter milk samples with high SCC (P=0.0003), and this group also had a significantly higher percentage of neutrophils that produced ROS (P=0.008). On the other hand, the phagocytosis intensity of S. aureus by milk neutrophils was higher in quarters with low SCC (P=0.003), suggesting a better mammary gland immunity against invading pathogens. Analyzing the results of the predictive values of the measured PMN functions, they cannot be used isolated as a good diagnosis test since none of them had a satisfactory sensitivity and specificity v... Mostrar Tudo |
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Palavras-Chave: |
Especificidade; Infecção intramamária; Intracellular reactive; Intramammary infection; Milk neutrophils; Saúde da glândula mamária; Sensibilidade; Sensitivity; Udder health status. |
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Thesagro: |
Bacteriose; Oxigênio; Vaca Leiteira. |
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Thesaurus NAL: |
Cattle; Dairy cows; Immune response; Mastitis; Oxygen production; Phagocytosis. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/178768/1/Intracellular-reactive-oxygen-species.pdf
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Marc: |
LEADER 03573naa a2200397 a 4500
001 2092602
005 2018-06-19
008 2018 bl uuuu u00u1 u #d
100 1 $aMOLINARI, P. C. C.
245 $aIntracellular reactive oxygen species production and phagocytosis of Staphylococcus aureus by milk neutrophils as tool to diagnose mastitis and identify susceptible dairy cows.$h[electronic resource]
260 $c2018
500 $aTítulo em português: Produção intracelular de espécies reativas de oxigênio e fagocitose de Staphylococcus aureus por neutrófilos lácteos como ferramentas para o diagnóstico da mastite e identificação de vacas leiteiras susceptíveis à mastite.
520 $aThe immune response capacity of the mammary gland plays a major role to determine if mastitis will or not be established. Thus, we hypothesize that a better understanding of polymorphonuclear neutrophil leukocyte (PMN) function will elucidate mechanisms that will improve our knowledge of how we could avoid an inflammatory process by increasing the immune capacity of the cow, and even further, to search for a tool to diagnose mastitis or a possible way to select and identify non-susceptible animals. The present study utilized 112 quarters from 28 Holstein dairy cows that were divided into quarters milk samples with somatic cell count (SCC) <2×105 cells mL-1 (n=72) and SCC >2×105 cells mL-1 (n=40). The percentages of milk PMNs and the levels of intracellular reactive oxygen species (ROS) and the phagocytosis of Staphylococcus aureus by milk neutrophils were evaluated by flow cytometry. Our results showed a higher percentage of neutrophils in quarter milk samples with high SCC (P=0.0003), and this group also had a significantly higher percentage of neutrophils that produced ROS (P=0.008). On the other hand, the phagocytosis intensity of S. aureus by milk neutrophils was higher in quarters with low SCC (P=0.003), suggesting a better mammary gland immunity against invading pathogens. Analyzing the results of the predictive values of the measured PMN functions, they cannot be used isolated as a good diagnosis test since none of them had a satisfactory sensitivity and specificity values, which was also confirmed by the Youden index values being far from one. In conclusion, the assessment of milk bovine neutrophil functions could improve our understanding of the cellular basis of mastitis. Although, the intracellular ROS production and S. aureus phagocytosis by milk neutrophil did not have high predictive values to detect intramammary infections, our results strengthen the idea that that poor bovine mammary gland neutrophil phagocytic ability may be associated with high SCC, and might be considered to identify susceptible dairy cows to mastitis.
650 $aCattle
650 $aDairy cows
650 $aImmune response
650 $aMastitis
650 $aOxygen production
650 $aPhagocytosis
650 $aBacteriose
650 $aOxigênio
650 $aVaca Leiteira
653 $aEspecificidade
653 $aInfecção intramamária
653 $aIntracellular reactive
653 $aIntramammary infection
653 $aMilk neutrophils
653 $aSaúde da glândula mamária
653 $aSensibilidade
653 $aSensitivity
653 $aUdder health status
700 1 $aBLAGITZ, M. G.
700 1 $aDELLA LIBERA, A. M. M. P.
700 1 $aBATISTA, C. F.
700 1 $aSOUZA, F. N.
773 $tPesquisa Veterinária Brasileira, Rio de Janeiro$gv. 38, n. 4, p. 659-664, abril 2018
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