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Registro Completo |
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Biblioteca(s): |
Embrapa Pecuária Sudeste. |
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Data corrente: |
06/12/2021 |
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Data da última atualização: |
15/12/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
GONÇALVES, A. A.; GARCIA, A. R.; ROLIM FILHO, S. T.; SILVA, J. A. R. DA; MELO, D. N. DE; GUIMARÃES, T. C.; TAVARES, H. R.; SILVA, T. V. G.; SOUZA, E. B. DE; SANTOS, S. DO S. D.; OHASHI, O. M. |
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Afiliação: |
ARNALDO ALGARANHAR GONÇALVES, Federal University of Pará; ALEXANDRE ROSSETTO GARCIA, CPPSE; SEBASTIÃO TAVARES ROLIM FILHO, Federal Rural University of Amazonia; JAMILE ANDRÉA RODRIGUES DA SILVA, Federal Rural University of Amazonia; DAYANA NEVES DE MELO, Federal Rural University of Amazonia; THIAGO CASTRO GUIMARÃES, Federal University of Pará; HÉLITON RIBEIRO TAVARES, Federal University of Pará; THIAGO VELASCO GUIMARÃES SILVA, Federal University of Pará; EDUARDO BAIA DE SOUZA, Federal University of Pará; SIMONE DO SOCORRO DAMASCENO SANTOS, Federal University of Pará; OTÁVIO MITIO OHASHI, Federal University of Pará. |
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Título: |
Scrotal thermoregulation and sequential sperm abnormalities in buffalo bulls (Bubalus bubalis) under short-term heat stress. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Journal of Thermal Biology, v.96, feb. 2021, 102842. |
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Páginas: |
10 p. |
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DOI: |
https://doi.org/10.1016/j.jtherbio.2021.102842 |
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Idioma: |
Inglês |
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Conteúdo: |
Heat stress reduces the reproductive capacity of bulls raised in tropical climate. However, the reestablishment of scrotal thermoregulation and the dynamics of sperm defects emergence after stress are not completely known in buffaloes. Thus, the study aimed to evaluate the effect of short-term heat stress over scrotal thermoregulation and sperm attributes, relating them to spermatogenesis stages. Five buffalo bulls went through scrotal insulation during 48 h (from day 0 to day 2). Semen samples were collected every 7 days (from day - 7 to day 49) and progressive motility, viability, and sperm morphology. Heat stress significantly destabilized scrotal thermoregulation (P < 0.001). Scrotal temperature was from 4.2 to 6.3 C lower than the core body temperature, except on insulation days (P < 0.001), and returned to the basal condition five days after the removal of the stressing stimulus. More significant deleterious effects were observed in sperm morphology than in cell concentration, motility, and viability. The chronology of morphologic defects expression demonstrated tail defects (days 7?14), cytoplasmic droplets (days 14-28), and head defects (day 28), returning to pre-insulation condition 35 days after the thermal challenge. Thus, hyperthermia harmed more intensely spermatozoa in epididymal transit, elongated spermatids, and secondary spermatocytes. It is concluded that water buffalo bulls present a peculiar manifestation of sperm morphology after short-term stress, indicating an important difference related to the bovine species. Therefore, during the andrological evaluation of buffalo bulls, it is necessary to avoid the allometric extrapolation between these species. MenosHeat stress reduces the reproductive capacity of bulls raised in tropical climate. However, the reestablishment of scrotal thermoregulation and the dynamics of sperm defects emergence after stress are not completely known in buffaloes. Thus, the study aimed to evaluate the effect of short-term heat stress over scrotal thermoregulation and sperm attributes, relating them to spermatogenesis stages. Five buffalo bulls went through scrotal insulation during 48 h (from day 0 to day 2). Semen samples were collected every 7 days (from day - 7 to day 49) and progressive motility, viability, and sperm morphology. Heat stress significantly destabilized scrotal thermoregulation (P < 0.001). Scrotal temperature was from 4.2 to 6.3 C lower than the core body temperature, except on insulation days (P < 0.001), and returned to the basal condition five days after the removal of the stressing stimulus. More significant deleterious effects were observed in sperm morphology than in cell concentration, motility, and viability. The chronology of morphologic defects expression demonstrated tail defects (days 7?14), cytoplasmic droplets (days 14-28), and head defects (day 28), returning to pre-insulation condition 35 days after the thermal challenge. Thus, hyperthermia harmed more intensely spermatozoa in epididymal transit, elongated spermatids, and secondary spermatocytes. It is concluded that water buffalo bulls present a peculiar manifestation of sperm morphology after short-term stress, indic... Mostrar Tudo |
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Palavras-Chave: |
Sperm morphology; Spermiogram; Water buffalo. |
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Thesaurus Nal: |
Thermal stress; Thermoregulation. |
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Categoria do assunto: |
G Melhoramento Genético |
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Marc: |
LEADER 02702naa a2200325 a 4500
001 2137118
005 2021-12-15
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.jtherbio.2021.102842$2DOI
100 1 $aGONÇALVES, A. A.
245 $aScrotal thermoregulation and sequential sperm abnormalities in buffalo bulls (Bubalus bubalis) under short-term heat stress.$h[electronic resource]
260 $c2021
300 $a10 p.
520 $aHeat stress reduces the reproductive capacity of bulls raised in tropical climate. However, the reestablishment of scrotal thermoregulation and the dynamics of sperm defects emergence after stress are not completely known in buffaloes. Thus, the study aimed to evaluate the effect of short-term heat stress over scrotal thermoregulation and sperm attributes, relating them to spermatogenesis stages. Five buffalo bulls went through scrotal insulation during 48 h (from day 0 to day 2). Semen samples were collected every 7 days (from day - 7 to day 49) and progressive motility, viability, and sperm morphology. Heat stress significantly destabilized scrotal thermoregulation (P < 0.001). Scrotal temperature was from 4.2 to 6.3 C lower than the core body temperature, except on insulation days (P < 0.001), and returned to the basal condition five days after the removal of the stressing stimulus. More significant deleterious effects were observed in sperm morphology than in cell concentration, motility, and viability. The chronology of morphologic defects expression demonstrated tail defects (days 7?14), cytoplasmic droplets (days 14-28), and head defects (day 28), returning to pre-insulation condition 35 days after the thermal challenge. Thus, hyperthermia harmed more intensely spermatozoa in epididymal transit, elongated spermatids, and secondary spermatocytes. It is concluded that water buffalo bulls present a peculiar manifestation of sperm morphology after short-term stress, indicating an important difference related to the bovine species. Therefore, during the andrological evaluation of buffalo bulls, it is necessary to avoid the allometric extrapolation between these species.
650 $aThermal stress
650 $aThermoregulation
653 $aSperm morphology
653 $aSpermiogram
653 $aWater buffalo
700 1 $aGARCIA, A. R.
700 1 $aROLIM FILHO, S. T.
700 1 $aSILVA, J. A. R. DA
700 1 $aMELO, D. N. DE
700 1 $aGUIMARÃES, T. C.
700 1 $aTAVARES, H. R.
700 1 $aSILVA, T. V. G.
700 1 $aSOUZA, E. B. DE
700 1 $aSANTOS, S. DO S. D.
700 1 $aOHASHI, O. M.
773 $tJournal of Thermal Biology$gv.96, feb. 2021, 102842.
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Registro original: |
Embrapa Pecuária Sudeste (CPPSE) |
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Tipo/Formato |
Classificação |
Cutter |
Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Semiárido. |
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Data corrente: |
21/07/2021 |
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Data da última atualização: |
21/07/2021 |
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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: |
BONOMELLI, C.; FREITAS, S. T. de; AGUILERA, C.; PALMA, C.; GARAY, R.; DIDES, M.; BROSSARD, N.; O'BRIEN, J. A. |
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Afiliação: |
CLAUDIA BONOMELLI; SERGIO TONETTO DE FREITAS, CPATSA; CAMILA AGUILERA; CAROLA PALMA; REBECA GARAY; MAXIMILIANO DIDES; NATALIA BROSSARD; JOSÉ ANTONIO O'BRIEN. |
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Título: |
Ammonium excess leads to Ca restrictions, morphological changes, and nutritional imbalances in tomato plants, which can be monitored by the N/Ca ratio. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Agronomy, v. 11, n. 7, jul. 2021. |
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Idioma: |
Inglês |
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Conteúdo: |
Both nitrogen and calcium fertilization management are vital for crops, where an imbalance of these elements can cause both physiological and yield problems. It has been proposed that nitrogen absorption, particularly ammonium, is in part dependent on calcium supply. Moreover, the balance between these two nutrients could be a key indicator of plant growth in some species. Tomato, one of the most cultivated crops worldwide, can also be widely affected by nutritional imbalance. Using large amounts of N fertilizers could lead to an imbalance with other nutrients and, thus, detrimental effects in terms of plant development and yield. Here we show that ammonium excess has a negative impact on plant development and results in calcium deficiency. Moreover, a deficit in calcium nutrition not only affects calcium concentration but also leads to a restriction in N uptake and reduced N concentration in the plant. These effects were evident at the seedling stage and also during flowering/fruit set. Using PCA analysis, we integrated both phenotypic and nutritional imbalances in seedlings and grown plants. Interestingly, the Ca/N ratio appears to be a key indicator to monitor appropriate N and calcium nutrition and more importantly the balance between both. Maintaining this balance could be an essential element for tomato crop production. |
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Palavras-Chave: |
Desenvolvimento de plantas. |
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Thesagro: |
Adubação; Nitrato de Amônio; Nutrição; Nutrição Vegetal; Tomate. |
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Thesaurus NAL: |
Tomatoes. |
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Categoria do assunto: |
F Plantas e Produtos de Origem Vegetal |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/224572/1/Ammonium-Excess-Leads-to-Ca-Restrictions-2021.pdf
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Marc: |
LEADER 02194naa a2200289 a 4500
001 2133054
005 2021-07-21
008 2021 bl uuuu u00u1 u #d
100 1 $aBONOMELLI, C.
245 $aAmmonium excess leads to Ca restrictions, morphological changes, and nutritional imbalances in tomato plants, which can be monitored by the N/Ca ratio.$h[electronic resource]
260 $c2021
520 $aBoth nitrogen and calcium fertilization management are vital for crops, where an imbalance of these elements can cause both physiological and yield problems. It has been proposed that nitrogen absorption, particularly ammonium, is in part dependent on calcium supply. Moreover, the balance between these two nutrients could be a key indicator of plant growth in some species. Tomato, one of the most cultivated crops worldwide, can also be widely affected by nutritional imbalance. Using large amounts of N fertilizers could lead to an imbalance with other nutrients and, thus, detrimental effects in terms of plant development and yield. Here we show that ammonium excess has a negative impact on plant development and results in calcium deficiency. Moreover, a deficit in calcium nutrition not only affects calcium concentration but also leads to a restriction in N uptake and reduced N concentration in the plant. These effects were evident at the seedling stage and also during flowering/fruit set. Using PCA analysis, we integrated both phenotypic and nutritional imbalances in seedlings and grown plants. Interestingly, the Ca/N ratio appears to be a key indicator to monitor appropriate N and calcium nutrition and more importantly the balance between both. Maintaining this balance could be an essential element for tomato crop production.
650 $aTomatoes
650 $aAdubação
650 $aNitrato de Amônio
650 $aNutrição
650 $aNutrição Vegetal
650 $aTomate
653 $aDesenvolvimento de plantas
700 1 $aFREITAS, S. T. de
700 1 $aAGUILERA, C.
700 1 $aPALMA, C.
700 1 $aGARAY, R.
700 1 $aDIDES, M.
700 1 $aBROSSARD, N.
700 1 $aO'BRIEN, J. A.
773 $tAgronomy$gv. 11, n. 7, jul. 2021.
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