| |
|
|
|
Registro Completo |
|
Biblioteca(s): |
Embrapa Milho e Sorgo. |
|
Data corrente: |
08/02/2017 |
|
Data da última atualização: |
17/11/2017 |
|
Tipo da produção científica: |
Artigo em Periódico Indexado |
|
Autoria: |
SILVA, I. R. da; SILVA, D. K. A. da; SOUZA, F. A. de; OEHLD, F; MAIA, L. C. |
|
Afiliação: |
Iolanda Ramalho da Silva, Universidade Federal de Pernambuco; Danielle Karla Alves da Silva, Universidade Federal do Vale do São Francisco; FRANCISCO ADRIANO DE SOUZA, CNPMS; Fritz Oehld, Agroscope, Ecotoxicology, Schloss; Leonor Costa Maia, Universidade Federal de Pernambuco. |
|
Título: |
Changes in arbuscular mycorrhizal fungal communities along a river delta island in northeastern Brazil. |
|
Ano de publicação: |
2017 |
|
Fonte/Imprenta: |
Acta Oecologica, Paris, v. 79, p. 8-17, 2017. |
|
DOI: |
10.1016/j.actao.2016.12.011 |
|
Idioma: |
Inglês |
|
Conteúdo: |
Arbuscular mycorrhizal fungi (AMF) play a key role in the maintenance of the balance of terrestrial ecosystems, but little is known about the biogeography of these fungi, especially on tropical islands. This study aims to compare AMF community structure along a transect crossing a fluvial-marine island and relate these communities with soil and vegetation parameters to shed light on the forces driving AMF community structure on a local scale. We tested the hypothesis that the composition of AMF communities changes across the island, even within short distances among sites, in response to differences in edaphic characteristics and vegetation physiognomies. We sampled roots and soils in five different natural and degraded habitats: preserved mangrove forest (MF), degraded mangrove forest (MD), natural Restinga forest (RF), and two regeneration Restinga forests (RR1 and RR2) on Ilha da Restinga, northeastern Brazil. We determined the mycorrhizal colonization rate and AMF community structure based on morphological spore identification. The island soils were sandy with pH varying from acid to neutral; higher levels of organic matter were registered in RF and lower in MF; other chemical and physical soil attributes differed along the habitat types on the island. In total, 22 AMF species were identified, without any difference in species richness. However, the diversity and composition of AMF communities, spore abundance per families, and mycorrhizal colonization were statistically different among the habitats. The composition of AMF communities was strongly related to soil characteristics, especially the sum of exchangeable bases. Our results indicate that the different habitat types have diverse AMF communities even within short distances among habitats. In conclusion, islands with high spatial heterogeneity in soil parameters and diverse vegetation are potential refuges for the diversity conservation of AM fungi. MenosArbuscular mycorrhizal fungi (AMF) play a key role in the maintenance of the balance of terrestrial ecosystems, but little is known about the biogeography of these fungi, especially on tropical islands. This study aims to compare AMF community structure along a transect crossing a fluvial-marine island and relate these communities with soil and vegetation parameters to shed light on the forces driving AMF community structure on a local scale. We tested the hypothesis that the composition of AMF communities changes across the island, even within short distances among sites, in response to differences in edaphic characteristics and vegetation physiognomies. We sampled roots and soils in five different natural and degraded habitats: preserved mangrove forest (MF), degraded mangrove forest (MD), natural Restinga forest (RF), and two regeneration Restinga forests (RR1 and RR2) on Ilha da Restinga, northeastern Brazil. We determined the mycorrhizal colonization rate and AMF community structure based on morphological spore identification. The island soils were sandy with pH varying from acid to neutral; higher levels of organic matter were registered in RF and lower in MF; other chemical and physical soil attributes differed along the habitat types on the island. In total, 22 AMF species were identified, without any difference in species richness. However, the diversity and composition of AMF communities, spore abundance per families, and mycorrhizal colonization were statistically... Mostrar Tudo |
|
Thesagro: |
Micorriza. |
|
Categoria do assunto: |
S Ciências Biológicas |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/154987/1/Changes-arbuscular.pdf
|
|
Marc: |
LEADER 02534naa a2200193 a 4500
001 2063083
005 2017-11-17
008 2017 bl uuuu u00u1 u #d
024 7 $a10.1016/j.actao.2016.12.011$2DOI
100 1 $aSILVA, I. R. da
245 $aChanges in arbuscular mycorrhizal fungal communities along a river delta island in northeastern Brazil.$h[electronic resource]
260 $c2017
520 $aArbuscular mycorrhizal fungi (AMF) play a key role in the maintenance of the balance of terrestrial ecosystems, but little is known about the biogeography of these fungi, especially on tropical islands. This study aims to compare AMF community structure along a transect crossing a fluvial-marine island and relate these communities with soil and vegetation parameters to shed light on the forces driving AMF community structure on a local scale. We tested the hypothesis that the composition of AMF communities changes across the island, even within short distances among sites, in response to differences in edaphic characteristics and vegetation physiognomies. We sampled roots and soils in five different natural and degraded habitats: preserved mangrove forest (MF), degraded mangrove forest (MD), natural Restinga forest (RF), and two regeneration Restinga forests (RR1 and RR2) on Ilha da Restinga, northeastern Brazil. We determined the mycorrhizal colonization rate and AMF community structure based on morphological spore identification. The island soils were sandy with pH varying from acid to neutral; higher levels of organic matter were registered in RF and lower in MF; other chemical and physical soil attributes differed along the habitat types on the island. In total, 22 AMF species were identified, without any difference in species richness. However, the diversity and composition of AMF communities, spore abundance per families, and mycorrhizal colonization were statistically different among the habitats. The composition of AMF communities was strongly related to soil characteristics, especially the sum of exchangeable bases. Our results indicate that the different habitat types have diverse AMF communities even within short distances among habitats. In conclusion, islands with high spatial heterogeneity in soil parameters and diverse vegetation are potential refuges for the diversity conservation of AM fungi.
650 $aMicorriza
700 1 $aSILVA, D. K. A. da
700 1 $aSOUZA, F. A. de
700 1 $aOEHLD, F
700 1 $aMAIA, L. C.
773 $tActa Oecologica, Paris$gv. 79, p. 8-17, 2017.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
URL |
Voltar
|
|
|
Registro Completo
|
Biblioteca(s): |
Embrapa Florestas. |
|
Data corrente: |
16/01/2019 |
|
Data da última atualização: |
16/01/2019 |
|
Autoria: |
RIOS, P. D’A.; VIEIRA, H. C.; PEREIRA, G. F.; TURMINA, E.; NICOLETTI, M. F. |
|
Título: |
Variação radial e longitudinal da densidade básica da madeira de Pinus patula. |
|
Ano de publicação: |
2018 |
|
Fonte/Imprenta: |
Pesquisa Florestal Brasileira, Colombo, v. 38, e201501016, 2018. 5 p. |
|
DOI: |
10.4336/2018.pfb.38e201501016 |
|
Idioma: |
Português |
|
Notas: |
Nota científica. |
|
Conteúdo: |
A densidade básica da madeira é considerada uma das propriedades mais importantes, pois influencia diretamente as demais características físicas para a utilização industrial. O presente estudo teve como objetivo determinar a densidade básica média da madeira de árvores de Pinus patula Schltdl & Cham. e analisar a sua variação nos sentidos radial e longitudinal. As amostras foram retiradas de 12 árvores com 9 anos de idade, ao longo dos eixos longitudinal e radial. A densidade básica média observada foi 0,307 g cm-³. Observou-se aumento da densidade básica no sentido medula-casca e decréscimo no sentido longitudinal apenas da base até 2 m. Foi verificada interação entre as variações nos sentidos radial e longitudinal da madeira, indicando que a densidade da madeira de P. patula varia nos diferentes sentidos de crescimento. |
|
Palavras-Chave: |
Espécie introduzida; Pine-leaf-hanging; Pinheiro de folhas pendulas. |
|
Thesagro: |
Densidade da Madeira; Pinus Patula. |
|
Thesaurus NAL: |
Introduced species; Wood density. |
|
Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
|
URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/190720/1/1016-18657-1-PB.pdf
|
|
Marc: |
LEADER 01706naa a2200277 a 4500
001 2104311
005 2019-01-16
008 2018 bl uuuu u00u1 u #d
024 7 $a10.4336/2018.pfb.38e201501016$2DOI
100 1 $aRIOS, P. D’A.
245 $aVariação radial e longitudinal da densidade básica da madeira de Pinus patula.$h[electronic resource]
260 $c2018
500 $aNota científica.
520 $aA densidade básica da madeira é considerada uma das propriedades mais importantes, pois influencia diretamente as demais características físicas para a utilização industrial. O presente estudo teve como objetivo determinar a densidade básica média da madeira de árvores de Pinus patula Schltdl & Cham. e analisar a sua variação nos sentidos radial e longitudinal. As amostras foram retiradas de 12 árvores com 9 anos de idade, ao longo dos eixos longitudinal e radial. A densidade básica média observada foi 0,307 g cm-³. Observou-se aumento da densidade básica no sentido medula-casca e decréscimo no sentido longitudinal apenas da base até 2 m. Foi verificada interação entre as variações nos sentidos radial e longitudinal da madeira, indicando que a densidade da madeira de P. patula varia nos diferentes sentidos de crescimento.
650 $aIntroduced species
650 $aWood density
650 $aDensidade da Madeira
650 $aPinus Patula
653 $aEspécie introduzida
653 $aPine-leaf-hanging
653 $aPinheiro de folhas pendulas
700 1 $aVIEIRA, H. C.
700 1 $aPEREIRA, G. F.
700 1 $aTURMINA, E.
700 1 $aNICOLETTI, M. F.
773 $tPesquisa Florestal Brasileira, Colombo$gv. 38, e201501016, 2018. 5 p.
Download
Esconder MarcMostrar Marc Completo |
|
Registro original: |
Embrapa Florestas (CNPF) |
|
|
Biblioteca |
ID |
Origem |
Tipo/Formato |
Classificação |
Cutter |
Registro |
Volume |
Status |
Fechar
|
| Nenhum registro encontrado para a expressão de busca informada. |
|
|
