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Registro Completo |
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Biblioteca(s): |
Embrapa Gado de Corte. |
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Data corrente: |
30/12/2019 |
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Data da última atualização: |
30/12/2019 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
CARNEIRO, P. A. M.; TAKATANI, H.; PASQUATTI, T. N.; SILVA, C. B. D. G.; NORBY, B.; WILKINS, M. J.; ZUMÁRRAGA, M. J.; ARAUJO, F. R.; KANEENE, J. B. |
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Afiliação: |
Paulo A. M. Carneiro; Haruo Takatani, Agência de Defesa Agropecuaria do Amazonas; Taynara N. Pasquatti, Universidade Católica Dom Bosco -UCDB; Christian B. D. G. Silva, Agência de Defesa Agropecuaria do Amazonas; Bo Norby, Department of Large Animal Clinical Sciences, College of Veterinary Medicine, Michigan State University; Melinda J. Wilkins, Department of Large Animal Clinical Sciences, College of Veterinary Medicine, Michigan State University; Martín José Zumárraga, Institute of Biotechnology, CICV/INTA; FLABIO RIBEIRO DE ARAUJO, CNPGC; John B. Kaneene, Center for Comparative Epidemiology, College of Veterinary Medicine, Michigan State University. |
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Título: |
Epidemiological Study of Mycobacterium bovis Infection in Buffalo and Cattle in Amazonas, Brazil. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
Frontiers in Veterinary Science, v. 6, article 434, December, 2019. |
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Idioma: |
Inglês |
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Conteúdo: |
Bovine Tuberculosis (BTB) is an endemic disease in about one hundred countries, affecting the economy causing a decrease in productivity, condemnation of meat, and damaging the credibility on international trade. Additionally, Mycobacterium bovis the major causative agent for BTB can also infect humans causing a variety of clinical presentations. The aim of this study was to determine BTB prevalence and the main risk factors for theMycobacterium bovis prevalence in cattle and buffalos in Amazonas State, Brazil. Tissue samples from 151 animals (45 buffalo and 106 cattle from five herds with buffalo only, 22 herds with cattle only, and 12 herds with buffalo and cattle) were obtained from slaughterhouses under State Veterinary Inspection. M. bovis were isolated on Stonebrink medium. The positive cultures were confirmed by polymerase chain reaction (PCR) testing. The apparent herd and animal prevalence rates were 56.4 and 5.40%, respectively. Regarding animal species, the apparent prevalence rates were 3% in cattle and 11.8% in buffalo. Generalized Linear Mixed Models (GLMM) with random effect were used to assess the association with risk factors on the prevalence. Species (buffalo), herds size (>100 animals) and the presence of both species (buffalo and cattle) in the herd were the major risk factors for the infection by Mycobacterium bovis in the region. The findings reveal an urgent need for evidence-based effective intervention to reduce BTB prevalence in cattle and buffalo and prevent its spread to the human population. Studies are needed to understand why buffalo are more likely to be infected by M. bovis than cattle in Amazon. Recommendations for zoning, use of data from the inspection services to generate information regarding BTB focus, adoption of epidemiological tools, and discouragement of practices that promote the mixing of cattle and buffalo, were made. MenosBovine Tuberculosis (BTB) is an endemic disease in about one hundred countries, affecting the economy causing a decrease in productivity, condemnation of meat, and damaging the credibility on international trade. Additionally, Mycobacterium bovis the major causative agent for BTB can also infect humans causing a variety of clinical presentations. The aim of this study was to determine BTB prevalence and the main risk factors for theMycobacterium bovis prevalence in cattle and buffalos in Amazonas State, Brazil. Tissue samples from 151 animals (45 buffalo and 106 cattle from five herds with buffalo only, 22 herds with cattle only, and 12 herds with buffalo and cattle) were obtained from slaughterhouses under State Veterinary Inspection. M. bovis were isolated on Stonebrink medium. The positive cultures were confirmed by polymerase chain reaction (PCR) testing. The apparent herd and animal prevalence rates were 56.4 and 5.40%, respectively. Regarding animal species, the apparent prevalence rates were 3% in cattle and 11.8% in buffalo. Generalized Linear Mixed Models (GLMM) with random effect were used to assess the association with risk factors on the prevalence. Species (buffalo), herds size (>100 animals) and the presence of both species (buffalo and cattle) in the herd were the major risk factors for the infection by Mycobacterium bovis in the region. The findings reveal an urgent need for evidence-based effective intervention to reduce BTB prevalence in cattle and buffalo ... Mostrar Tudo |
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Thesaurus Nal: |
Bovine tuberculosis; Buffaloes; Cattle; Epidemiology; Mycobacterium bovis BCG. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/208001/1/Epidemiological-Study-of-Mycobacterium-bovis-Infection.pdf
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Marc: |
LEADER 02717naa a2200277 a 4500
001 2117948
005 2019-12-30
008 2019 bl uuuu u00u1 u #d
100 1 $aCARNEIRO, P. A. M.
245 $aEpidemiological Study of Mycobacterium bovis Infection in Buffalo and Cattle in Amazonas, Brazil.$h[electronic resource]
260 $c2019
520 $aBovine Tuberculosis (BTB) is an endemic disease in about one hundred countries, affecting the economy causing a decrease in productivity, condemnation of meat, and damaging the credibility on international trade. Additionally, Mycobacterium bovis the major causative agent for BTB can also infect humans causing a variety of clinical presentations. The aim of this study was to determine BTB prevalence and the main risk factors for theMycobacterium bovis prevalence in cattle and buffalos in Amazonas State, Brazil. Tissue samples from 151 animals (45 buffalo and 106 cattle from five herds with buffalo only, 22 herds with cattle only, and 12 herds with buffalo and cattle) were obtained from slaughterhouses under State Veterinary Inspection. M. bovis were isolated on Stonebrink medium. The positive cultures were confirmed by polymerase chain reaction (PCR) testing. The apparent herd and animal prevalence rates were 56.4 and 5.40%, respectively. Regarding animal species, the apparent prevalence rates were 3% in cattle and 11.8% in buffalo. Generalized Linear Mixed Models (GLMM) with random effect were used to assess the association with risk factors on the prevalence. Species (buffalo), herds size (>100 animals) and the presence of both species (buffalo and cattle) in the herd were the major risk factors for the infection by Mycobacterium bovis in the region. The findings reveal an urgent need for evidence-based effective intervention to reduce BTB prevalence in cattle and buffalo and prevent its spread to the human population. Studies are needed to understand why buffalo are more likely to be infected by M. bovis than cattle in Amazon. Recommendations for zoning, use of data from the inspection services to generate information regarding BTB focus, adoption of epidemiological tools, and discouragement of practices that promote the mixing of cattle and buffalo, were made.
650 $aBovine tuberculosis
650 $aBuffaloes
650 $aCattle
650 $aEpidemiology
650 $aMycobacterium bovis BCG
700 1 $aTAKATANI, H.
700 1 $aPASQUATTI, T. N.
700 1 $aSILVA, C. B. D. G.
700 1 $aNORBY, B.
700 1 $aWILKINS, M. J.
700 1 $aZUMÁRRAGA, M. J.
700 1 $aARAUJO, F. R.
700 1 $aKANEENE, J. B.
773 $tFrontiers in Veterinary Science$gv. 6, article 434, December, 2019.
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Registro original: |
Embrapa Gado de Corte (CNPGC) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Milho e Sorgo. Para informações adicionais entre em contato com cnpms.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
10/11/2017 |
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Data da última atualização: |
16/11/2017 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
B - 5 |
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Autoria: |
MATONYEI, T. K; SIRMAH, P. K.; SITIENEI, A. J.; OUMA, E. O.; LIGEYO, D. O.; CHEPROT, R. K.; MARITIM, K. K.; WERE, B. A.; KISINYO, P. O.; GUDU, S. O.; MAGALHAES, J. V.; GUIMARAES, C. T.; KOCHIAN, L. V. |
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Afiliação: |
University of Kabianga; University of Kabianga; University of Kabianga; Rongo University College; KALRO-Kitale; University of Eldoret; University of Eldoret; University of Eldoret; Rongo University College; Rongo University College; JURANDIR VIEIRA DE MAGALHAES, CNPMS; CLAUDIA TEIXEIRA GUIMARAES, CNPMS; USDA-ARS, Cornell University. |
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Título: |
The expression of ZmMATE1 gene at seminal root tip does not explain aluminum toxicity tolerance in a Kenyan maize breeding line. |
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Ano de publicação: |
2017 |
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Fonte/Imprenta: |
International Journal of Scientific Research and Innovative Technology, v. 4, n. 3, p. 45-59, 2017. |
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Idioma: |
Inglês |
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Conteúdo: |
Aluminium toxicity prevalent in acid soils is a major limitation to crop production worldwide. Under low pH, the rhizotoxic Al3+ ions are released from insoluble ores into the soil solution. Upon absorption into root cells, they cause root rigidity disrupting cell division and cell elongation hence limiting root growth. This predisposes the plant to drought and nutrient deficiencies consequently causing low yield production. Few candidate genes for Al tolerance have been identified in maize, these include, ZmMATE1, ZmMATE2 and ZmNrat1. The expression of these genes among Kenyan maize is not well known. This research was done with the following specific objectives; (i) to determine the Al toxicity tolerance of selected Kenyan maize breeding lines and (ii) to determine the expression of ZmMATE1 gene in selected Kenyan maize lines. Two hundred and thirty five (235) and 40 selected Kenyan maize breeding lines were screened for Al tolerance and expression of ZmMATE1 gene at the seminal root tip respectively. At 39 μM Al3+ activity in nutrient solution culture, 1.7% of breeding lines exhibited a stimulated growth; 2.55% showed almost no effects while 10.21% reported mild effects of the toxic cation on their root growth. At this Al activity 14%, 20%, 12% and 3% showed root growths of below 48%, 39%, 29% and 19% respectively. With reference to the calibrator, ZmMATE1 expression levels were as high as 16 fold in the Breeding line SYN AL × R12C10 ? 8 and as low as 0.54 fold in the Breeding line MUL 891. The mean expression level of the gene among the 40 breeding lines was 2.64 fold. Two Breeding lines, CATAL 237/167 × L3 ? 5 and SYN AL × R12C10 ? 8 that are inbred lines derived from crosses between germplasm from Kenya(KALRO) and Brazil(EMBRAPA ? Maize and Sorghum) exhibited the highest expression levels. Other Breeding lines derived from other germplasm from these institutions, however, exhibited low expression levels (< 2 fold). The Breeding line ATPS4SINT1W×R12C10? 5 reported exceptionally high activity levels of the gene (> 14 fold). Most of the Breeding lines from Kenya including 203B-14 which exhibited high root growth under 39 μM Al3+ activity , however, exhibited exceptionally low levels (< 2 fold) of the ZmMATE1 expression. This indicates that the expression of ZmMATE1 gene at the seminal root tip alone cannot explain Al tolerance in this breeding line. The Breeding line is thus a potential source of novel Al tolerance gene in maize. MenosAluminium toxicity prevalent in acid soils is a major limitation to crop production worldwide. Under low pH, the rhizotoxic Al3+ ions are released from insoluble ores into the soil solution. Upon absorption into root cells, they cause root rigidity disrupting cell division and cell elongation hence limiting root growth. This predisposes the plant to drought and nutrient deficiencies consequently causing low yield production. Few candidate genes for Al tolerance have been identified in maize, these include, ZmMATE1, ZmMATE2 and ZmNrat1. The expression of these genes among Kenyan maize is not well known. This research was done with the following specific objectives; (i) to determine the Al toxicity tolerance of selected Kenyan maize breeding lines and (ii) to determine the expression of ZmMATE1 gene in selected Kenyan maize lines. Two hundred and thirty five (235) and 40 selected Kenyan maize breeding lines were screened for Al tolerance and expression of ZmMATE1 gene at the seminal root tip respectively. At 39 μM Al3+ activity in nutrient solution culture, 1.7% of breeding lines exhibited a stimulated growth; 2.55% showed almost no effects while 10.21% reported mild effects of the toxic cation on their root growth. At this Al activity 14%, 20%, 12% and 3% showed root growths of below 48%, 39%, 29% and 19% respectively. With reference to the calibrator, ZmMATE1 expression levels were as high as 16 fold in the Breeding line SYN AL × R12C10 ? 8 and as low as 0.54 fold in th... Mostrar Tudo |
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Palavras-Chave: |
Quênia; Tolerância ao alumínio; Toxicidade. |
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Thesagro: |
Gene; Milho. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 03472naa a2200325 a 4500
001 2079462
005 2017-11-16
008 2017 bl uuuu u00u1 u #d
100 1 $aMATONYEI, T. K
245 $aThe expression of ZmMATE1 gene at seminal root tip does not explain aluminum toxicity tolerance in a Kenyan maize breeding line.$h[electronic resource]
260 $c2017
520 $aAluminium toxicity prevalent in acid soils is a major limitation to crop production worldwide. Under low pH, the rhizotoxic Al3+ ions are released from insoluble ores into the soil solution. Upon absorption into root cells, they cause root rigidity disrupting cell division and cell elongation hence limiting root growth. This predisposes the plant to drought and nutrient deficiencies consequently causing low yield production. Few candidate genes for Al tolerance have been identified in maize, these include, ZmMATE1, ZmMATE2 and ZmNrat1. The expression of these genes among Kenyan maize is not well known. This research was done with the following specific objectives; (i) to determine the Al toxicity tolerance of selected Kenyan maize breeding lines and (ii) to determine the expression of ZmMATE1 gene in selected Kenyan maize lines. Two hundred and thirty five (235) and 40 selected Kenyan maize breeding lines were screened for Al tolerance and expression of ZmMATE1 gene at the seminal root tip respectively. At 39 μM Al3+ activity in nutrient solution culture, 1.7% of breeding lines exhibited a stimulated growth; 2.55% showed almost no effects while 10.21% reported mild effects of the toxic cation on their root growth. At this Al activity 14%, 20%, 12% and 3% showed root growths of below 48%, 39%, 29% and 19% respectively. With reference to the calibrator, ZmMATE1 expression levels were as high as 16 fold in the Breeding line SYN AL × R12C10 ? 8 and as low as 0.54 fold in the Breeding line MUL 891. The mean expression level of the gene among the 40 breeding lines was 2.64 fold. Two Breeding lines, CATAL 237/167 × L3 ? 5 and SYN AL × R12C10 ? 8 that are inbred lines derived from crosses between germplasm from Kenya(KALRO) and Brazil(EMBRAPA ? Maize and Sorghum) exhibited the highest expression levels. Other Breeding lines derived from other germplasm from these institutions, however, exhibited low expression levels (< 2 fold). The Breeding line ATPS4SINT1W×R12C10? 5 reported exceptionally high activity levels of the gene (> 14 fold). Most of the Breeding lines from Kenya including 203B-14 which exhibited high root growth under 39 μM Al3+ activity , however, exhibited exceptionally low levels (< 2 fold) of the ZmMATE1 expression. This indicates that the expression of ZmMATE1 gene at the seminal root tip alone cannot explain Al tolerance in this breeding line. The Breeding line is thus a potential source of novel Al tolerance gene in maize.
650 $aGene
650 $aMilho
653 $aQuênia
653 $aTolerância ao alumínio
653 $aToxicidade
700 1 $aSIRMAH, P. K.
700 1 $aSITIENEI, A. J.
700 1 $aOUMA, E. O.
700 1 $aLIGEYO, D. O.
700 1 $aCHEPROT, R. K.
700 1 $aMARITIM, K. K.
700 1 $aWERE, B. A.
700 1 $aKISINYO, P. O.
700 1 $aGUDU, S. O.
700 1 $aMAGALHAES, J. V.
700 1 $aGUIMARAES, C. T.
700 1 $aKOCHIAN, L. V.
773 $tInternational Journal of Scientific Research and Innovative Technology$gv. 4, n. 3, p. 45-59, 2017.
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