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Registro Completo |
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Biblioteca(s): |
Embrapa Uva e Vinho. |
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Data corrente: |
10/09/2021 |
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Data da última atualização: |
10/09/2021 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
DE CONTI, L.; CESCO, S.; MIMMO, T.; PII, Y.; VALENTINUZZI, F.; MELO, G. W. B. de; CERETTA, C. A.; TRENTIN, E.; MARQUES, A. C. R.; BRUNETTO, G. |
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Afiliação: |
LESSANDRO DE CONTI, Federal Institute of Education, Science and Technology Farroupilha, 98590-000, Santo Augusto, RS, Brazil; STEFANO CESCO, Faculty of Science and Technology, Free University of Bolzano, I-39100, Bolzano, Italy; TANJA MIMMO, Faculty of Science and Technology, Free University of Bolzano, I-39100, Bolzano, Italy; YOURY PII, Faculty of Science and Technology, Free University of Bolzano, I-39100, Bolzano, Italy; FABIO VALENTINUZZI, Faculty of Science and Technology, Free University of Bolzano, I-39100, Bolzano, Italy; GEORGE WELLINGTON BASTOS DE MELO, CNPUV; CARLOS A. CERETTA, Department of Soil Science of the Federal University of Santa Maria, 97105-900, Santa Maria, RS, Brazil; EDICARLA TRENTIN, Department of Soil Science of the Federal University of Santa Maria, 97105-900, Santa Maria, RS, Brazil; ANDERSON C. R. MARQUES, Department of Soil Science of the Federal University of Santa Maria, 97105-900, Santa Maria, RS, Brazil; GUSTAVO BRUNETTO, Department of Soil Science of the Federal University of Santa Maria, 97105-900, Santa Maria, RS, Brazil. |
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Título: |
Iron fertilization to enhance tolerance mechanisms to copper toxicity of ryegrass plants used as cover crop in vineyards. |
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Ano de publicação: |
2020 |
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Fonte/Imprenta: |
Chemosphere, v. 243,e125298 March 2020. |
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DOI: |
https://doi.org/10.1016/j.chemosphere.2019.125298 |
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Idioma: |
Inglês |
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Conteúdo: |
Ryegrass (Lolium perenne L.) is a plant species that can express mechanisms of tolerance to copper (Cu) toxicity. Therefore, the agronomical approach of intercropping system with ryegrass may represent a promising tool to limit the onset of Cu toxicity symptoms in the other intercropped plants species, particularly when an inadequate nutrient availability like iron (Fe) shortage is also concurrently present. This study aimed at assessing the mechanisms involved in the mitigation of Cu phytotoxicity and the stress effects on plant growth, root morphology and nutrition of ryegrass fertilized with two different Fe sources. To this purpose, seedlings of ryegrass were hydroponically grown for 14 days in controlled conditions with 4 different levels of Cu (0.2, 5.0, 25 and 50 μM) and with either 100 μM Fe-EDDHA or Fe-EDTA. Results show that high levels of Cu availability enhanced the root content of organic anions as well as the root exudation. Different Fe fertilizations at the condition of 50 μM Cu induced changes in root phenolic compounds, citrate and fumarate contents and the exudation pattern of phenolic compounds. Differences in plant growth were not observed between the two Fe sources, although Cu concentration in plant tissue fed with Fe-EDTA was lower in the condition of 50 μM Cu. The enhanced root exudation of Cu-complexing organic compounds (including phenolics) in ryegrass plants when exposed to excessive Cu availability could be at the basis of the ameliorated edaphic rhizosphere conditions (lower Cu availability). For this reason, from the agronomical point of view ryegrass plants used in intercropping systems with crops like vine plants could represent a promising strategy to control Cu toxicity in vineyard soils. Further studies under the field conditions must be taken to support present findings. MenosRyegrass (Lolium perenne L.) is a plant species that can express mechanisms of tolerance to copper (Cu) toxicity. Therefore, the agronomical approach of intercropping system with ryegrass may represent a promising tool to limit the onset of Cu toxicity symptoms in the other intercropped plants species, particularly when an inadequate nutrient availability like iron (Fe) shortage is also concurrently present. This study aimed at assessing the mechanisms involved in the mitigation of Cu phytotoxicity and the stress effects on plant growth, root morphology and nutrition of ryegrass fertilized with two different Fe sources. To this purpose, seedlings of ryegrass were hydroponically grown for 14 days in controlled conditions with 4 different levels of Cu (0.2, 5.0, 25 and 50 μM) and with either 100 μM Fe-EDDHA or Fe-EDTA. Results show that high levels of Cu availability enhanced the root content of organic anions as well as the root exudation. Different Fe fertilizations at the condition of 50 μM Cu induced changes in root phenolic compounds, citrate and fumarate contents and the exudation pattern of phenolic compounds. Differences in plant growth were not observed between the two Fe sources, although Cu concentration in plant tissue fed with Fe-EDTA was lower in the condition of 50 μM Cu. The enhanced root exudation of Cu-complexing organic compounds (including phenolics) in ryegrass plants when exposed to excessive Cu availability cou... Mostrar Tudo |
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Palavras-Chave: |
Organic acids; Phenolics. |
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Thesaurus Nal: |
Amino acids; Heavy metals; Phytoremediation; Root exudates. |
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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/225844/1/1-s2.0-S004565351932538X-main.pdf
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Marc: |
LEADER 02801naa a2200313 a 4500
001 2134208
005 2021-09-10
008 2020 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1016/j.chemosphere.2019.125298$2DOI
100 1 $aDE CONTI, L.
245 $aIron fertilization to enhance tolerance mechanisms to copper toxicity of ryegrass plants used as cover crop in vineyards.$h[electronic resource]
260 $c2020
520 $aRyegrass (Lolium perenne L.) is a plant species that can express mechanisms of tolerance to copper (Cu) toxicity. Therefore, the agronomical approach of intercropping system with ryegrass may represent a promising tool to limit the onset of Cu toxicity symptoms in the other intercropped plants species, particularly when an inadequate nutrient availability like iron (Fe) shortage is also concurrently present. This study aimed at assessing the mechanisms involved in the mitigation of Cu phytotoxicity and the stress effects on plant growth, root morphology and nutrition of ryegrass fertilized with two different Fe sources. To this purpose, seedlings of ryegrass were hydroponically grown for 14 days in controlled conditions with 4 different levels of Cu (0.2, 5.0, 25 and 50 μM) and with either 100 μM Fe-EDDHA or Fe-EDTA. Results show that high levels of Cu availability enhanced the root content of organic anions as well as the root exudation. Different Fe fertilizations at the condition of 50 μM Cu induced changes in root phenolic compounds, citrate and fumarate contents and the exudation pattern of phenolic compounds. Differences in plant growth were not observed between the two Fe sources, although Cu concentration in plant tissue fed with Fe-EDTA was lower in the condition of 50 μM Cu. The enhanced root exudation of Cu-complexing organic compounds (including phenolics) in ryegrass plants when exposed to excessive Cu availability could be at the basis of the ameliorated edaphic rhizosphere conditions (lower Cu availability). For this reason, from the agronomical point of view ryegrass plants used in intercropping systems with crops like vine plants could represent a promising strategy to control Cu toxicity in vineyard soils. Further studies under the field conditions must be taken to support present findings.
650 $aAmino acids
650 $aHeavy metals
650 $aPhytoremediation
650 $aRoot exudates
653 $aOrganic acids
653 $aPhenolics
700 1 $aCESCO, S.
700 1 $aMIMMO, T.
700 1 $aPII, Y.
700 1 $aVALENTINUZZI, F.
700 1 $aMELO, G. W. B. de
700 1 $aCERETTA, C. A.
700 1 $aTRENTIN, E.
700 1 $aMARQUES, A. C. R.
700 1 $aBRUNETTO, G.
773 $tChemosphere$gv. 243,e125298 March 2020.
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Registro original: |
Embrapa Uva e Vinho (CNPUV) |
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 | Acesso ao texto completo restrito à biblioteca da Embrapa Amazônia Oriental. Para informações adicionais entre em contato com cpatu.biblioteca@embrapa.br. |
Registro Completo
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Biblioteca(s): |
Embrapa Amazônia Oriental. |
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Data corrente: |
05/05/2014 |
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Data da última atualização: |
19/10/2022 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Circulação/Nível: |
A - 1 |
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Autoria: |
BAKER, T. R.; PENNINGTON, R. T.; MAGALLON, S.; GLOOR, E.; LAURANCE, W. F.; ALEXIADES, M.; ALVAREZ, E.; ARAUJO, A.; ARETS, E. J. M. M.; AYMARD, G.; OLIVEIRA, A. A. de; AMARAL, I.; ARROYO, L.; BONAL, D.; BRIENEN, R. J. W.; CHAVE, J.; DEXTER, K. G.; DI FIORE, A.; ELER, E.; FELDPAUSCH, T. R.; FERREIRA, L.; LOPEZ-GONZALEZ, G.; HEIJDEN, G. van der; HOGUCHI, N.; HONORIO, E.; HUAMANTUPA, I.; KILLEEN, T. J.; LAURANCE, S.; LEAÑO, C.; LEWIS, S. L.; MALHI, Y.; MARIMON, B. S.; MARIMON JUNIOR, B. H.; MONTEAGUDO MENDOZA, A.; NEILL, D.; PEÑUELA-MORA, M. C.; PITMAN, N.; PRIETO, A.; QUESADA, C. A.; RAMÍREZ, F.; RAMÍREZ ANGULO, H.; RUDAS, A.; RUSCHEL, A. R.; SALOMÃO, R. P.; ANDRADE, A. S. de; SILVA, J. N. M.; SILVEIRA, M.; SIMON, M. F.; SPIRONELLO, W.; STEEGE, H. ter; TERBORGH, J.; TOLEDO, M.; TORRES-LEZAMA, A.; VASQUEZ, R.; VIEIRA, I. C. G.; VILANOVA, E.; VOS, V. A.; PHILLIPS, O. L. |
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Afiliação: |
TIMOTHY R. BAKER, University of Leeds; R. TOBY PENNINGTON, Royal Botanic Garden Edinburgh; SUSANA MAGALLON, Universidad Nacional Autónoma de México; EMANUEL GLOOR, University of Leeds; WILLIAM F. LAURANCE, Centre for Tropical Environmental and Sustainability Science (TESS) and School of Marine and Tropical Biology, James Cook University; MIGUEL ALEXIADES, University of Kent; ESTEBAN ALVAREZ, Universidad del Tolima; ALEJANDRO ARAUJO, Museo de Historia Natural Noel Kempff Mercado; ERIC J. M. M. ARETS, Wageningen University and Research Centre; GERARDO AYMARD, Herbario Universitario PORT; ATILA ALVES DE OLIVEIRA, Projeto TEAM - Manaus, Instituto Nacional de Pesquisas da Amazônia; IÊDA AMARAL, Projeto TEAM - Manaus, Instituto Nacional de Pesquisas da Amazônia; LUZMILA ARROYO, Museo de Historia Natural Noel Kempff Mercado; DAMIEN BONAL, INRA-Université de Lorraine; ROEL J. W. BRIENEN, University of Leeds; JEROME CHAVE, CNRS and Université Paul Sabatier; KYLE G. DEXTER, Royal Botanic Garden Edinburgh / University of Edinburgh; ANTHONY DI FIORE, University of Texas at Austin; EDUARDO ELER, Projeto TEAM - Manaus, Instituto Nacional de Pesquisas da Amazônia; TED R. FELDPAUSCH, University of Leeds; LEANDRO FERREIRA, MPEG; GABRIELA LOPEZ-GONZALEZ, University of Leeds; GEERTJE VAN DER HEIJDEN, University of Wisconsin-Milwaukee / Smithsonian Tropical Research Institute; NIRO HIGUCHI, INPA; EURÍDICE HONORIO, University of Leeds / Instituto de Investigaciónes de la Amazonía Peruana; ISAU HUAMANTUPA, Herbario CUZ, Universidad Nacional San Antonio Abad del Cusco; TIM J. KILLEEN, Conservation International; SUSAN LAURANCE, Centre for Tropical Environmental and Sustainability Science (TESS) and School of Marine and Tropical Biology, James Cook University; CLAUDIO LEAÑO, Instituto Boliviano de Investigación Forestal; SIMON L. LEWIS, University of Leeds / University College London; YADVINDER MALHI, University of Oxford; BEATRIZ SCHWANTES MARIMON, Universidade do Estado de Mato Grosso - Campus de Nova Xavantina; BEN HUR MARIMON JUNIOR, Universidade do Estado de Mato Grosso - Campus de Nova Xavantina; ABEL MONTEAGUDO MENDOZA, Jardín Botanico de Missouri; DAVID NEILL, Universidad Estatal Amazónica; MARIA CRISTINA PEÑUELA-MORA, Universidad Nacional de Colombia; NIGEL PITMAN, Duke University; ADRIANA PRIETO, Instituto de Ciencias Naturales, UNAL; CARLOS A. QUESADA, INPA; FREDY RAMÍREZ, Universidad Nacional de la Amazonía Peruana; HIRMA RAMÍREZ ANGULO, INDEFOR, Universidad de los Andes; AGUSTIN RUDAS, Instituto de Ciencias Naturales, UNAL; ADEMIR ROBERTO RUSCHEL, CPATU; RAFAEL P. SALOMÃO, MPEG; ANA SEGALIN DE ANDRADE, PDBFF, Instituto Nacional de Pesquisas da Amazônia; JOSÉ NATALINO MACEDO SILVA, UFRA / Instituto Floresta Tropical; MARCOS SILVEIRA, Universidade Federal do Acre; MARCELO FRAGOMENI SIMON, CENARGEN; WILSON SPIRONELLO, Projeto TEAM - Manaus, Instituto Nacional de Pesquisas da Amazônia; HANS TER STEEGE, Naturalis Biodiversity Center / Utrecht University; JOHN TERBORGH, Duke University; MARISOL TOLEDO, stituto Boliviano de Investigación Forestal; ARMANDO TORRES-LEZAMA, INDEFOR, Universidad de los Andes; RODOLFO VASQUEZ, Jardín Botanico de Missouri; IMA CÉLIA GUIMARÃES VIEIRA, MPEG; EMILIO VILANOVA, INDEFOR, Universidad de los Andes; VINCENT A. VOS, Universidad Autónoma del Beni; OLIVER L. PHILLIPS, University of Leeds. |
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Título: |
Fast demographic traits promote high diversification rates of Amazonian trees. |
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Ano de publicação: |
2014 |
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Fonte/Imprenta: |
Ecology Letters, v. 17, n. 5, p. 527-536, May 2014. |
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DOI: |
10.1111/ele.12252 |
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Idioma: |
Inglês |
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Conteúdo: |
The Amazon rain forest sustains the world's highest tree diversity, but it remains unclear why some clades of trees are hyperdiverse, whereas others are not. Using dated phylogenies, estimates of current species richness and trait and demographic data from a large network of forest plots, we show that fast demographic traits ? short turnover times ? are associated with high diversification rates across 51 clades of canopy trees. This relationship is robust to assuming that diversification rates are either constant or decline over time, and occurs in a wide range of Neotropical tree lineages. This finding reveals the crucial role of intrinsic, ecological variation among clades for understanding the origin of the remarkable diversity of Amazonian trees and forests. |
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Palavras-Chave: |
Diversidade; Floresta amazônica; Tempo de geração. |
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Thesagro: |
Árvore. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 03035naa a2200865 a 4500
001 1985543
005 2022-10-19
008 2014 bl uuuu u00u1 u #d
024 7 $a10.1111/ele.12252$2DOI
100 1 $aBAKER, T. R.
245 $aFast demographic traits promote high diversification rates of Amazonian trees.$h[electronic resource]
260 $c2014
520 $aThe Amazon rain forest sustains the world's highest tree diversity, but it remains unclear why some clades of trees are hyperdiverse, whereas others are not. Using dated phylogenies, estimates of current species richness and trait and demographic data from a large network of forest plots, we show that fast demographic traits ? short turnover times ? are associated with high diversification rates across 51 clades of canopy trees. This relationship is robust to assuming that diversification rates are either constant or decline over time, and occurs in a wide range of Neotropical tree lineages. This finding reveals the crucial role of intrinsic, ecological variation among clades for understanding the origin of the remarkable diversity of Amazonian trees and forests.
650 $aÁrvore
653 $aDiversidade
653 $aFloresta amazônica
653 $aTempo de geração
700 1 $aPENNINGTON, R. T.
700 1 $aMAGALLON, S.
700 1 $aGLOOR, E.
700 1 $aLAURANCE, W. F.
700 1 $aALEXIADES, M.
700 1 $aALVAREZ, E.
700 1 $aARAUJO, A.
700 1 $aARETS, E. J. M. M.
700 1 $aAYMARD, G.
700 1 $aOLIVEIRA, A. A. de
700 1 $aAMARAL, I.
700 1 $aARROYO, L.
700 1 $aBONAL, D.
700 1 $aBRIENEN, R. J. W.
700 1 $aCHAVE, J.
700 1 $aDEXTER, K. G.
700 1 $aDI FIORE, A.
700 1 $aELER, E.
700 1 $aFELDPAUSCH, T. R.
700 1 $aFERREIRA, L.
700 1 $aLOPEZ-GONZALEZ, G.
700 1 $aHEIJDEN, G. van der
700 1 $aHOGUCHI, N.
700 1 $aHONORIO, E.
700 1 $aHUAMANTUPA, I.
700 1 $aKILLEEN, T. J.
700 1 $aLAURANCE, S.
700 1 $aLEAÑO, C.
700 1 $aLEWIS, S. L.
700 1 $aMALHI, Y.
700 1 $aMARIMON, B. S.
700 1 $aMARIMON JUNIOR, B. H.
700 1 $aMONTEAGUDO MENDOZA, A.
700 1 $aNEILL, D.
700 1 $aPEÑUELA-MORA, M. C.
700 1 $aPITMAN, N.
700 1 $aPRIETO, A.
700 1 $aQUESADA, C. A.
700 1 $aRAMÍREZ, F.
700 1 $aRAMÍREZ ANGULO, H.
700 1 $aRUDAS, A.
700 1 $aRUSCHEL, A. R.
700 1 $aSALOMÃO, R. P.
700 1 $aANDRADE, A. S. de
700 1 $aSILVA, J. N. M.
700 1 $aSILVEIRA, M.
700 1 $aSIMON, M. F.
700 1 $aSPIRONELLO, W.
700 1 $aSTEEGE, H. ter
700 1 $aTERBORGH, J.
700 1 $aTOLEDO, M.
700 1 $aTORRES-LEZAMA, A.
700 1 $aVASQUEZ, R.
700 1 $aVIEIRA, I. C. G.
700 1 $aVILANOVA, E.
700 1 $aVOS, V. A.
700 1 $aPHILLIPS, O. L.
773 $tEcology Letters$gv. 17, n. 5, p. 527-536, May 2014.
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