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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. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Caprinos e Ovinos. |
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Data corrente: |
01/08/1992 |
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Data da última atualização: |
22/05/2023 |
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Autoria: |
LAUENROTH, W. K.; DODD, J. L.; SIMS, P. L. |
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Título: |
The effects of water and nitrogen-induced stresses on plant community structure in a Semiarid grassland. |
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Ano de publicação: |
1978 |
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Fonte/Imprenta: |
Oecologia, v. 36, n. 2, p. 211-222, Jan. 1978. |
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DOI: |
10.1007/BF00349810 |
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Idioma: |
Inglês |
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Conteúdo: |
Abstract: A replicated factorial experiment was designed to test the hypothesis that manipulating inputs of water and mineral nitrogen to a semiarid grassland would disrupt existing interactions resulting in alteration of the structure of the primary producer community. Alteration of community structure was measured as either changes in growing season average biomass of 6 functional groups of plants or their relative contribution to total biomass. Additions of water greatly increased total biomass and resulted in the replacement of one of the dominant functional groups by a subordinate group. The water plus nitrogen treatment resulted in large biomass increases in two of the dominant functional groups, elimination of succulents as an important component of community structure, and establishment of several introduced weedy species. Continuation of the experiment will likely result in complete dominance of the water plus nitrogen treatment by these introduced species. Despite the large changes in community structure observed as a result of water- and nitrogen-induced stresses we conclude that the shortgrass prairie in northcentral Colorado is asymptotically stable with respect to these influences. |
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Thesagro: |
Água; Ecologia; Nitrogênio; Pastagem Nativa. |
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Thesaurus Nal: |
Grasslands; Nitrogen; Plant communities; Plant ecology; Semiarid soils. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 01964naa a2200265 a 4500
001 1521927
005 2023-05-22
008 1978 bl uuuu u00u1 u #d
024 7 $a10.1007/BF00349810$2DOI
100 1 $aLAUENROTH, W. K.
245 $aThe effects of water and nitrogen-induced stresses on plant community structure in a Semiarid grassland.$h[electronic resource]
260 $c1978
520 $aAbstract: A replicated factorial experiment was designed to test the hypothesis that manipulating inputs of water and mineral nitrogen to a semiarid grassland would disrupt existing interactions resulting in alteration of the structure of the primary producer community. Alteration of community structure was measured as either changes in growing season average biomass of 6 functional groups of plants or their relative contribution to total biomass. Additions of water greatly increased total biomass and resulted in the replacement of one of the dominant functional groups by a subordinate group. The water plus nitrogen treatment resulted in large biomass increases in two of the dominant functional groups, elimination of succulents as an important component of community structure, and establishment of several introduced weedy species. Continuation of the experiment will likely result in complete dominance of the water plus nitrogen treatment by these introduced species. Despite the large changes in community structure observed as a result of water- and nitrogen-induced stresses we conclude that the shortgrass prairie in northcentral Colorado is asymptotically stable with respect to these influences.
650 $aGrasslands
650 $aNitrogen
650 $aPlant communities
650 $aPlant ecology
650 $aSemiarid soils
650 $aÁgua
650 $aEcologia
650 $aNitrogênio
650 $aPastagem Nativa
700 1 $aDODD, J. L.
700 1 $aSIMS, P. L.
773 $tOecologia$gv. 36, n. 2, p. 211-222, Jan. 1978.
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Embrapa Caprinos e Ovinos (CNPC) |
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Registro Completo
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Biblioteca(s): |
Embrapa Agroenergia. |
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Data corrente: |
12/01/2023 |
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Data da última atualização: |
13/01/2023 |
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Tipo da produção científica: |
Resumo em Anais de Congresso |
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Autoria: |
TEIXEIRA, T. S.; RODRIGUES NETO, J. C.; CONCEIÇÃO, A. A.; COSTA, P. P. K. G.; SIQUEIRA, F. G. de; ABDELNUR, P. V. |
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Afiliação: |
TALLYTA SANTOS TEIXEIRA, CNPAE; JORGE CANDIDO RODRIGUES NETO, CNPAE; APARECIDO ALMEIDA CONCEIÇÃO, CNPAE; PATRICIA PINTO KALIL G COSTA, CNPAE; FELIX GONCALVES DE SIQUEIRA, CNPAE; PATRICIA VERARDI ABDELNUR, CNPAE. |
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Título: |
Analysis of fungal co-culture metabolites using both classic and imprinting Mass Spectrometry Imaging. |
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Ano de publicação: |
2022 |
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Fonte/Imprenta: |
In: IBEROAMERICAN CONFERENCE ON MASS SPECTROMETRY, 3., 2022, Rio de Janeiro. Book of abstracts. [S/l]: Sociedade Brasileira de Espectrometria de Massas, 2022. |
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Páginas: |
p. 391-392 |
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Idioma: |
Inglês |
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Conteúdo: |
Fungi are able to produce a wide range of bioactive metabolites, which enhanced when challenged in co-culture[1]. For a better evaluation of these metabolites, the Mass Spectrometry Imaging (MSI) can be used to provide complementary information through the metabolite spatial localization [2]. However, some adaptations are required on available methodologies in MSI for applications in microrganisms[2], particularly on sample preparation. The imprinting method has been shown to be a robust method when applied to preparation of samples analyzed by DESI-MSI[3], but it has never been tested for MALDI-MSI for microrganisms, in our knowledge. |
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Palavras-Chave: |
MALDI-MSI; Pleorotus pulmonarius. |
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Thesaurus NAL: |
Aspergillus terreus; Metabolomics. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1150904/1/Analysis-of-fungal.pdf
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Marc: |
LEADER 01461nam a2200229 a 4500
001 2150904
005 2023-01-13
008 2022 bl uuuu u00u1 u #d
100 1 $aTEIXEIRA, T. S.
245 $aAnalysis of fungal co-culture metabolites using both classic and imprinting Mass Spectrometry Imaging.$h[electronic resource]
260 $aIn: IBEROAMERICAN CONFERENCE ON MASS SPECTROMETRY, 3., 2022, Rio de Janeiro. Book of abstracts. [S/l]: Sociedade Brasileira de Espectrometria de Massas$c2022
300 $ap. 391-392
520 $aFungi are able to produce a wide range of bioactive metabolites, which enhanced when challenged in co-culture[1]. For a better evaluation of these metabolites, the Mass Spectrometry Imaging (MSI) can be used to provide complementary information through the metabolite spatial localization [2]. However, some adaptations are required on available methodologies in MSI for applications in microrganisms[2], particularly on sample preparation. The imprinting method has been shown to be a robust method when applied to preparation of samples analyzed by DESI-MSI[3], but it has never been tested for MALDI-MSI for microrganisms, in our knowledge.
650 $aAspergillus terreus
650 $aMetabolomics
653 $aMALDI-MSI
653 $aPleorotus pulmonarius
700 1 $aRODRIGUES NETO, J. C.
700 1 $aCONCEIÇÃO, A. A.
700 1 $aCOSTA, P. P. K. G.
700 1 $aSIQUEIRA, F. G. de
700 1 $aABDELNUR, P. V.
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