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Registro Completo |
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Biblioteca(s): |
Embrapa Arroz e Feijão. |
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Data corrente: |
16/08/2021 |
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Data da última atualização: |
01/12/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
MOINET, G. Y. K.; DHAMI, M. K.; HUNT, J. E.; PODOLYAN, A.; LIÁNG, L. L.; SCHIPPER, L. A.; NUÑEZ, J.; NASCENTE, A. S.; MILLARD, P. |
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Afiliação: |
GABRIEL Y. K. MOINET, Wageningen University and Research, Wageningen-The Netherlands; MANPREET K. DHAMI, Manaaki Whenua, Lincoln-New Zealand; JOHN E. HUNT, Manaaki Whenua, Lincoln-New Zealand; ANASTASIJA PODOLYAN, Manaaki Whenua, Lincoln-New Zealand; LIYIN L. LIÁNG, Manaaki Whenua, Lincoln-New Zealand; LOUIS A. SCHIPPER, University of Waikato, New Zealand; JONATHAN NUÑEZ, Manaaki Whenua, Lincoln-New Zealand; ADRIANO STEPHAN NASCENTE, CNPAF; PETER MILLARD, Manaaki Whenua, Lincoln-New Zealand. |
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Título: |
Soil microbial sensitivity to temperature remains unchanged despite community compositional shifts along geothermal gradients. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Global Change Biology, v. 27, n. 23, p. 6217-6231, Dec. 2021. |
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DOI: |
https://doi.org/10.1111/gcb.15878 |
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Idioma: |
Inglês |
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Conteúdo: |
Climate warming may be exacerbated if rising temperatures stimulate losses of soil carbon to the atmosphere. The direction and magnitude of this carbon-climate feedback are uncertain, largely due to lack of knowledge of the thermal adaptation of the physiology and composition of soil microbial communities. Here, we applied the macromolecular rate theory (MMRT) to describe the temperature response of the microbial decomposition of soil organic matter (SOM) in a natural long-term warming experiment in a geothermally active area in New Zealand. Our objective was to test whether microbial communities adapt to long-term warming with a shift in their composition and their temperature response that are consistent with evolutionary theory of trade-offs between enzyme structure and function. We characterized the microbial community composition (using metabarcoding) and the temperature response of microbial decomposition of SOM (using MMRT) of soils sampled along transects of increasing distance from a geothermally active zone comprising two biomes (a shrubland and a grassland) and sampled at two depths (0?50 and 50?100 mm), such that ambient soil temperature and soil carbon concentration varied widely and independently. We found that the different environments were hosting microbial communities with distinct compositions, with thermophile and thermotolerant genera increasing in relative abundance with increasing ambient temperature. However, the ambient temperature had no detectable influence on the MMRT parameters or the relative temperature sensitivity of decomposition (Q10). MMRT parameters were, however, strongly correlated with soil carbon concentration and carbon:nitrogen ratio. Our findings suggest that, while long-term warming selects for warm-adapted taxa, substrate quality and quantity exert a stronger influence than temperature in selecting for distinct thermal traits. The results have major implications for our understanding of the role of soil microbial processes in the long-term effects of climate warming on soil carbon dynamics and will help increase confidence in carbon-climate feedback projections. MenosClimate warming may be exacerbated if rising temperatures stimulate losses of soil carbon to the atmosphere. The direction and magnitude of this carbon-climate feedback are uncertain, largely due to lack of knowledge of the thermal adaptation of the physiology and composition of soil microbial communities. Here, we applied the macromolecular rate theory (MMRT) to describe the temperature response of the microbial decomposition of soil organic matter (SOM) in a natural long-term warming experiment in a geothermally active area in New Zealand. Our objective was to test whether microbial communities adapt to long-term warming with a shift in their composition and their temperature response that are consistent with evolutionary theory of trade-offs between enzyme structure and function. We characterized the microbial community composition (using metabarcoding) and the temperature response of microbial decomposition of SOM (using MMRT) of soils sampled along transects of increasing distance from a geothermally active zone comprising two biomes (a shrubland and a grassland) and sampled at two depths (0?50 and 50?100 mm), such that ambient soil temperature and soil carbon concentration varied widely and independently. We found that the different environments were hosting microbial communities with distinct compositions, with thermophile and thermotolerant genera increasing in relative abundance with increasing ambient temperature. However, the ambient temperature had no detectable ... Mostrar Tudo |
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Thesagro: |
Microbiologia do Solo. |
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Thesaurus Nal: |
Carbon; Geothermal industry; Microbial communities; Soil organic matter. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/228328/1/gcb-2021.pdf
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Marc: |
LEADER 03041naa a2200289 a 4500
001 2133615
005 2021-12-01
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1111/gcb.15878$2DOI
100 1 $aMOINET, G. Y. K.
245 $aSoil microbial sensitivity to temperature remains unchanged despite community compositional shifts along geothermal gradients.$h[electronic resource]
260 $c2021
520 $aClimate warming may be exacerbated if rising temperatures stimulate losses of soil carbon to the atmosphere. The direction and magnitude of this carbon-climate feedback are uncertain, largely due to lack of knowledge of the thermal adaptation of the physiology and composition of soil microbial communities. Here, we applied the macromolecular rate theory (MMRT) to describe the temperature response of the microbial decomposition of soil organic matter (SOM) in a natural long-term warming experiment in a geothermally active area in New Zealand. Our objective was to test whether microbial communities adapt to long-term warming with a shift in their composition and their temperature response that are consistent with evolutionary theory of trade-offs between enzyme structure and function. We characterized the microbial community composition (using metabarcoding) and the temperature response of microbial decomposition of SOM (using MMRT) of soils sampled along transects of increasing distance from a geothermally active zone comprising two biomes (a shrubland and a grassland) and sampled at two depths (0?50 and 50?100 mm), such that ambient soil temperature and soil carbon concentration varied widely and independently. We found that the different environments were hosting microbial communities with distinct compositions, with thermophile and thermotolerant genera increasing in relative abundance with increasing ambient temperature. However, the ambient temperature had no detectable influence on the MMRT parameters or the relative temperature sensitivity of decomposition (Q10). MMRT parameters were, however, strongly correlated with soil carbon concentration and carbon:nitrogen ratio. Our findings suggest that, while long-term warming selects for warm-adapted taxa, substrate quality and quantity exert a stronger influence than temperature in selecting for distinct thermal traits. The results have major implications for our understanding of the role of soil microbial processes in the long-term effects of climate warming on soil carbon dynamics and will help increase confidence in carbon-climate feedback projections.
650 $aCarbon
650 $aGeothermal industry
650 $aMicrobial communities
650 $aSoil organic matter
650 $aMicrobiologia do Solo
700 1 $aDHAMI, M. K.
700 1 $aHUNT, J. E.
700 1 $aPODOLYAN, A.
700 1 $aLIÁNG, L. L.
700 1 $aSCHIPPER, L. A.
700 1 $aNUÑEZ, J.
700 1 $aNASCENTE, A. S.
700 1 $aMILLARD, P.
773 $tGlobal Change Biology$gv. 27, n. 23, p. 6217-6231, Dec. 2021.
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Registro original: |
Embrapa Arroz e Feijão (CNPAF) |
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Biblioteca(s): |
Embrapa Clima Temperado. |
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Data corrente: |
04/02/2020 |
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Data da última atualização: |
04/02/2020 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
SILVA, T. B. da; DORNELES, A. O. S.; PEREIRA, A. S.; TANIGUCHI, M.; CASTRO, C. M.; DUTRA, L. F. |
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Afiliação: |
TALIS BASILIO DA SILVA; ATHOS ODIN SEVERO DORNELES; ALINE SOARES PEREIRA; MARISA TANIGUCHI; CAROLINE MARQUES CASTRO, CPACT; LEONARDO FERREIRA DUTRA, CPACT. |
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Título: |
Acúmulo de biomassa e produção de tubérculos em plantas de batata submetidos a estresse osmótico. |
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Ano de publicação: |
2019 |
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Fonte/Imprenta: |
In: SEMANA INTEGRADA UFPEL, 5.; CONGRESSO DE INICIAÇÃO CIENTÍFICA, 28., 2019, Pelotas. [Anais]. 4 p. ENPOS. |
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Idioma: |
Português |
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Conteúdo: |
O presente trabalho foi desenvolvido com o objetivo de avaliar o desenvolvimento de diferentes genótipos de batata sob estresse hídrico utilizando o PEG. |
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Thesagro: |
Batata; Biomassa. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/210178/1/CA-03358.pdf
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Marc: |
LEADER 00804nam a2200193 a 4500
001 2119801
005 2020-02-04
008 2019 bl uuuu u00u1 u #d
100 1 $aSILVA, T. B. da
245 $aAcúmulo de biomassa e produção de tubérculos em plantas de batata submetidos a estresse osmótico.$h[electronic resource]
260 $aIn: SEMANA INTEGRADA UFPEL, 5.; CONGRESSO DE INICIAÇÃO CIENTÍFICA, 28., 2019, Pelotas. [Anais]. 4 p. ENPOS.$c2019
520 $aO presente trabalho foi desenvolvido com o objetivo de avaliar o desenvolvimento de diferentes genótipos de batata sob estresse hídrico utilizando o PEG.
650 $aBatata
650 $aBiomassa
700 1 $aDORNELES, A. O. S.
700 1 $aPEREIRA, A. S.
700 1 $aTANIGUCHI, M.
700 1 $aCASTRO, C. M.
700 1 $aDUTRA, L. F.
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