|
|
| Acesso ao texto completo restrito à biblioteca da Embrapa Mandioca e Fruticultura. Para informações adicionais entre em contato com cnpmf.biblioteca@embrapa.br. |
Registro Completo |
Biblioteca(s): |
Embrapa Mandioca e Fruticultura. |
Data corrente: |
19/09/2019 |
Data da última atualização: |
05/12/2019 |
Tipo da produção científica: |
Artigo em Periódico Indexado |
Autoria: |
ARIANA S.; MARTINS, M. L. L.; MARTINS, F. M.; CARVALHO, P. C. L. DE; LEDO, C. A. da S.; AMORIM, A. M. |
Afiliação: |
ARIANA S. SANTOS, UFRB; MÁRCIO L. LOPES MARTINS, UFRB; FABIANO M. MARTINS, UFRB; PAULO C. L. DE CARVALHO, UFRB; CARLOS ALBERTO DA SILVA LEDO, CNPMF; ANDRÉ M. AMORIM, UESC. |
Título: |
A new species and putative hybrids of Manihot (Euphorbiaceae) from Brazil. |
Ano de publicação: |
2019 |
Fonte/Imprenta: |
Plant Systematics and Evolution, 2019. |
ISSN: |
0378-2697 |
DOI: |
https://doi.org/10.1007/s00606-019-01597-z |
Idioma: |
Inglês |
Conteúdo: |
This work describes and illustrates the new species Manihot reflexifolia, sp. nov. and compares its leaf anatomy to Manihot reniformis and probable hybrids between the two species. Manihot reflexifolia is also compared to Manihot jacobinensis from which it can be distinguished by its cylindrical petioles, elliptical to short lanceolate, reflexed leaf lobes and staminate flowers restricted to the terminal portion of the inflorescence (upper half), while M. jacobinensis has dorsiventrally flattened petioles, suborbicular to obovate leaf lobes, and staminate flowers along the entire inflorescence axis. The new species is restricted to rocky outcrops of the Chapada Diamantina in central Bahia State, Brazil. An identification key to Manihot species from rocky outcrops of Chapada Diamantina is provided. The leaf anatomy of M. reflexifolia, M. reniformis and the putative hybrids was analyzed using optical and scanning electron microscopy. Leaf anatomy was sufficient to characterize M. reflexifolia, M. reniformis and the putative hybrids, as well as to identify the first two wild taxa as potential progenitors of the hybrids (M. reflexifolia × M. reniformis). The most useful anatomical characteristics were the morphology of the petiole and midrib, bundle sheath extension, organization and quantity of vascular bundles, organization and composition of the mesophyll, and the presence of epidermal papillae. |
Thesagro: |
Mandioca. |
Thesaurus Nal: |
Cassava. |
Categoria do assunto: |
-- |
Marc: |
LEADER 02079naa a2200229 a 4500 001 2112328 005 2019-12-05 008 2019 bl uuuu u00u1 u #d 022 $a0378-2697 024 7 $ahttps://doi.org/10.1007/s00606-019-01597-z$2DOI 100 1 $aARIANA S. 245 $aA new species and putative hybrids of Manihot (Euphorbiaceae) from Brazil.$h[electronic resource] 260 $c2019 520 $aThis work describes and illustrates the new species Manihot reflexifolia, sp. nov. and compares its leaf anatomy to Manihot reniformis and probable hybrids between the two species. Manihot reflexifolia is also compared to Manihot jacobinensis from which it can be distinguished by its cylindrical petioles, elliptical to short lanceolate, reflexed leaf lobes and staminate flowers restricted to the terminal portion of the inflorescence (upper half), while M. jacobinensis has dorsiventrally flattened petioles, suborbicular to obovate leaf lobes, and staminate flowers along the entire inflorescence axis. The new species is restricted to rocky outcrops of the Chapada Diamantina in central Bahia State, Brazil. An identification key to Manihot species from rocky outcrops of Chapada Diamantina is provided. The leaf anatomy of M. reflexifolia, M. reniformis and the putative hybrids was analyzed using optical and scanning electron microscopy. Leaf anatomy was sufficient to characterize M. reflexifolia, M. reniformis and the putative hybrids, as well as to identify the first two wild taxa as potential progenitors of the hybrids (M. reflexifolia × M. reniformis). The most useful anatomical characteristics were the morphology of the petiole and midrib, bundle sheath extension, organization and quantity of vascular bundles, organization and composition of the mesophyll, and the presence of epidermal papillae. 650 $aCassava 650 $aMandioca 700 1 $aMARTINS, M. L. L. 700 1 $aMARTINS, F. M. 700 1 $aCARVALHO, P. C. L. DE 700 1 $aLEDO, C. A. da S. 700 1 $aAMORIM, A. M. 773 $tPlant Systematics and Evolution, 2019.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Mandioca e Fruticultura (CNPMF) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
Registro Completo
Biblioteca(s): |
Embrapa Solos. |
Data corrente: |
27/10/2023 |
Data da última atualização: |
06/11/2023 |
Tipo da produção científica: |
Artigo em Anais de Congresso |
Autoria: |
SCHMIDT, M. J.; GOLDBERG, S. L.; PERRON, J. T.; HECKENBERGER, M.; WATLING, J.; DORSHOW, W. B.; MORAES, B.; LIMA, H.; TEIXEIRA, W. G.; NEVES, E.; HOSLER, D.; WAURA, K.; KUIKURO, H.; KUIKURO, W.; KUIKURO, A.; FAUSTO, C.; FRANCHETTO, B. |
Afiliação: |
MORGAN J. SCHMIDT, MASSACHUSETTS INSTITUTE OF TECHNOLOGY; SAMUEL LUKENS GOLDBERG, UNIVERSITY OF MIAMI; J. TAYLOR PERRON, MASSACHUSETTS INSTITUTE OF TECHNOLOGY; MICHAEL HECKENBERGER, UNIVERSITY OF FLORIDA; JENNIFER WATLING, UNIVERSIDADE DE SÃO PAULO; MUSEU DE ARQUEOLOGIA E ETNOLOGIA; WETHERBEE BRYAN DORSHOW, EARTH ANALYTIC, INC; PUENTE INSTITUTE; BRUNO MORAES, UNIVERSITY OF PITTSBURGH; MUSEU PARAENSE EMILIO GOELDI; HELENA LIMA, MUSEU PARAENSE EMILIO GOELDI; WENCESLAU GERALDES TEIXEIRA, CNPS; EDUARDO NEVES, UNIVERSIDADE DE SÃO PAULO; MUSEU DE ARQUEOLOGIA E ETNOLOGIA; DOROTHY HOSLER, MASSACHUSETTS INSTITUTE OF TECHNOLOGY; CENTER FOR MATERIALS RESEARCH IN ARCHAEOLOGY; KUMESSI WAURA, ASSOCIAÇÃO INDÍGENA KUIKURO DO ALTO XINGU; HULKE KUIKURO, ASSOCIAÇÃO INDÍGENA KUIKURO DO ALTO XINGU; WATE KUIKURO, ASSOCIAÇÃO INDÍGENA KUIKURO DO ALTO XINGU; AFUKAKA KUIKURO, ASSOCIAÇÃO INDÍGENA KUIKURO DO ALTO XINGU; CARLOS FAUSTO, UNIVERSIDADE FEDERAL DO RIO DE JANEIRO; BRUNA FRANCHETTO, UNIVERSIDADE FEDERAL DO RIO DE JANEIRO. |
Título: |
Estimating soil carbon in Southern Amazon late holocene anthropogenic landscapes containing archaeological 'Dark Earth' Anthrosols. |
Ano de publicação: |
2020 |
Fonte/Imprenta: |
In: AMERICAN GEOPHYSICAL UNION FALL MEETING, 2020. Abstracts [...]. Washington, DC: American Geophysical Union, 2020. |
Idioma: |
Inglês |
Conteúdo: |
Amazonian dark earths (ADE) are anthropogenic soils with concentrated carbon and nutrients that formed mainly during the latter half of the Holocene, prior to the arrival of Europeans, but are still forming on a more limited scale up to the present in indigenous communities. ADE, a result of domestic, economic, and agricultural activities in and around human settlements, are noted for their extraordinary fertility and resilience and for the significant quantities of organic carbon, much in the form of charcoal. The deepest and most extensive areas of ADE are generally located on the bluffs of major rivers adjacent to floodplains, but significant areas of ADE have also been found in floodplains and in headwater and interfluvial areas. Our research aims to shed light on the distribution of modified soils in distinct regions of the Amazon in relation to landforms and the environment. Research on ADE has led to the development of a 'biochar' industry that promotes the incorporation of charcoal into the soil for the dual purpose of improving fertility and sequestering carbon, but the potential for large-scale carbon storage in anthropogenic soils is unclear, in part because the amount of carbon already stored in ADE is unknown as there is a notable lack of research attempting to quantify the carbon over the scale of a site or region. We undertook this challenge in the Upper Xingu region of southeastern Amazonia in partnership with the local Kuikuro indigenous community who have shared their valuable traditional knowledge on the creation and management of ADE. We used data from over 3500 soil samples from diverse contexts, both ancient and modern, that we collected and analyzed over the past two decades for organic carbon and a range of other chemical and physical properties that can serve as proxies for soil modification by humans. Dark earth samples from profiles down to 1 m depth in archaeological sites ranged from 20% to 150% more OC than unmodified forest soil and dark earth profiles in current and historic villages ranged from 20-90% more organic carbon. We used the results from soil sample transects to estimate the carbon in landuse zones within and surrounding modern, historic, and ancient settlement sites. In continuing work, we are attempting to use satellite remote sensing and AI to extrapolate our results across a larger region. MenosAmazonian dark earths (ADE) are anthropogenic soils with concentrated carbon and nutrients that formed mainly during the latter half of the Holocene, prior to the arrival of Europeans, but are still forming on a more limited scale up to the present in indigenous communities. ADE, a result of domestic, economic, and agricultural activities in and around human settlements, are noted for their extraordinary fertility and resilience and for the significant quantities of organic carbon, much in the form of charcoal. The deepest and most extensive areas of ADE are generally located on the bluffs of major rivers adjacent to floodplains, but significant areas of ADE have also been found in floodplains and in headwater and interfluvial areas. Our research aims to shed light on the distribution of modified soils in distinct regions of the Amazon in relation to landforms and the environment. Research on ADE has led to the development of a 'biochar' industry that promotes the incorporation of charcoal into the soil for the dual purpose of improving fertility and sequestering carbon, but the potential for large-scale carbon storage in anthropogenic soils is unclear, in part because the amount of carbon already stored in ADE is unknown as there is a notable lack of research attempting to quantify the carbon over the scale of a site or region. We undertook this challenge in the Upper Xingu region of southeastern Amazonia in partnership with the local Kuikuro indigenous community who have s... Mostrar Tudo |
Thesaurus NAL: |
Anthrosols; Carbon cycle. |
Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/doc/1157567/1/Estimating-soil-carbon-in-Southern-Amazon-late-holocene-anthropogenic-landscapes-2020.pdf
|
Marc: |
LEADER 03365nam a2200325 a 4500 001 2157567 005 2023-11-06 008 2020 bl uuuu u00u1 u #d 100 1 $aSCHMIDT, M. J. 245 $aEstimating soil carbon in Southern Amazon late holocene anthropogenic landscapes containing archaeological 'Dark Earth' Anthrosols.$h[electronic resource] 260 $aIn: AMERICAN GEOPHYSICAL UNION FALL MEETING, 2020. Abstracts [...]. Washington, DC: American Geophysical Union$c2020 520 $aAmazonian dark earths (ADE) are anthropogenic soils with concentrated carbon and nutrients that formed mainly during the latter half of the Holocene, prior to the arrival of Europeans, but are still forming on a more limited scale up to the present in indigenous communities. ADE, a result of domestic, economic, and agricultural activities in and around human settlements, are noted for their extraordinary fertility and resilience and for the significant quantities of organic carbon, much in the form of charcoal. The deepest and most extensive areas of ADE are generally located on the bluffs of major rivers adjacent to floodplains, but significant areas of ADE have also been found in floodplains and in headwater and interfluvial areas. Our research aims to shed light on the distribution of modified soils in distinct regions of the Amazon in relation to landforms and the environment. Research on ADE has led to the development of a 'biochar' industry that promotes the incorporation of charcoal into the soil for the dual purpose of improving fertility and sequestering carbon, but the potential for large-scale carbon storage in anthropogenic soils is unclear, in part because the amount of carbon already stored in ADE is unknown as there is a notable lack of research attempting to quantify the carbon over the scale of a site or region. We undertook this challenge in the Upper Xingu region of southeastern Amazonia in partnership with the local Kuikuro indigenous community who have shared their valuable traditional knowledge on the creation and management of ADE. We used data from over 3500 soil samples from diverse contexts, both ancient and modern, that we collected and analyzed over the past two decades for organic carbon and a range of other chemical and physical properties that can serve as proxies for soil modification by humans. Dark earth samples from profiles down to 1 m depth in archaeological sites ranged from 20% to 150% more OC than unmodified forest soil and dark earth profiles in current and historic villages ranged from 20-90% more organic carbon. We used the results from soil sample transects to estimate the carbon in landuse zones within and surrounding modern, historic, and ancient settlement sites. In continuing work, we are attempting to use satellite remote sensing and AI to extrapolate our results across a larger region. 650 $aAnthrosols 650 $aCarbon cycle 700 1 $aGOLDBERG, S. L. 700 1 $aPERRON, J. T. 700 1 $aHECKENBERGER, M. 700 1 $aWATLING, J. 700 1 $aDORSHOW, W. B. 700 1 $aMORAES, B. 700 1 $aLIMA, H. 700 1 $aTEIXEIRA, W. G. 700 1 $aNEVES, E. 700 1 $aHOSLER, D. 700 1 $aWAURA, K. 700 1 $aKUIKURO, H. 700 1 $aKUIKURO, W. 700 1 $aKUIKURO, A. 700 1 $aFAUSTO, C. 700 1 $aFRANCHETTO, B.
Download
Esconder MarcMostrar Marc Completo |
Registro original: |
Embrapa Solos (CNPS) |
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
Expressão de busca inválida. Verifique!!! |
|
|