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 | Acesso ao texto completo restrito à biblioteca da Embrapa Milho e Sorgo. Para informações adicionais entre em contato com cnpms.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Milho e Sorgo. |
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Data corrente: |
15/08/2018 |
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Data da última atualização: |
15/08/2018 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
SOUZA, F. A. de; SILVA, I. R. da; BARRETO, M. B. B. de B.; OEHL, F.; GOTO, B. T.; MAIA, L. C. |
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Afiliação: |
FRANCISCO ADRIANO DE SOUZA, CNPMS; Iolanda Ramalho da Silva, Universidade Federal de Pernambuco; Maria Beatriz Barbosa de Barros Barreto, Universidade Federal do Rio de Janeiro; Fritz Oehl, Agroscope, Competence Division for Plants and Plant Products, Ecotoxicology, Schloss; Bruno Tomio Goto, Universidade Federal do Rio Grande do Norte; Leonor Costa Maia, Universidade Federal de Pernambuco. |
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Título: |
Racocetra crispa (Glomeromycotina) delimited by integrative evidence based on morphology, long continuous nuclear rDNA sequencing and phylogeny. |
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Ano de publicação: |
2018 |
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Fonte/Imprenta: |
Mycological Progress, v. 17, p. 999-1011, 2018. |
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DOI: |
10.1007/s11557-018-1410-9 |
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Idioma: |
Inglês |
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Conteúdo: |
Here, we describe a new ornamented arbuscular mycorrhizal (AM) fungus, Racocetra crispa sp. nov. isolated from maize fields from the central region of Minas Gerais State, Brazil. For the first time, a Glomeromycotina species is described using a long continuous nuclear rDNA sequence fragment, which encompasses the nearly complete 18S SSU sequence gene until the 3? end of the D2 region of the 28S LSU (~ 3100 bp), which allows for comparison with sequences obtained from regions used for fungal metagenomic studies, species description, and AMfungi DNA-barcode. The new species forms dark brown to black spores, approx. 340?510 ?m on in diam., on sporogenous cells. The spores have unique Bcloud/flower^ projections on the spore surface, two walls, and differentiate a multiple-lobed germ shield with up to 8?12 germ tube initiations. The analysis of the intra- and interspecific DNA-barcode sequence variation within the Racocetra showed that the intragenomic polymorphism among the clones of R. crispa (0?2 %) is within the lower range for the genus. The V3?V4 region of the SSU nrDNA has no resolution to discriminate Racocetra at species level, but from this fragment, we found homology between R. crispa and environmental sequences from two metagenomics studies, one carried out in Brazil at the fungus type location and the other in New Zealand. The integration between AM fungal sequences from reference strains and those obtained from environmental sequences in Glomeromycotina is still a problematic issue, mainly due to the reduced number of AM fungal species characterized based on DNA sequences. MenosHere, we describe a new ornamented arbuscular mycorrhizal (AM) fungus, Racocetra crispa sp. nov. isolated from maize fields from the central region of Minas Gerais State, Brazil. For the first time, a Glomeromycotina species is described using a long continuous nuclear rDNA sequence fragment, which encompasses the nearly complete 18S SSU sequence gene until the 3? end of the D2 region of the 28S LSU (~ 3100 bp), which allows for comparison with sequences obtained from regions used for fungal metagenomic studies, species description, and AMfungi DNA-barcode. The new species forms dark brown to black spores, approx. 340?510 ?m on in diam., on sporogenous cells. The spores have unique Bcloud/flower^ projections on the spore surface, two walls, and differentiate a multiple-lobed germ shield with up to 8?12 germ tube initiations. The analysis of the intra- and interspecific DNA-barcode sequence variation within the Racocetra showed that the intragenomic polymorphism among the clones of R. crispa (0?2 %) is within the lower range for the genus. The V3?V4 region of the SSU nrDNA has no resolution to discriminate Racocetra at species level, but from this fragment, we found homology between R. crispa and environmental sequences from two metagenomics studies, one carried out in Brazil at the fungus type location and the other in New Zealand. The integration between AM fungal sequences from reference strains and those obtained from environmental sequences in Glomeromycotina is still a ... Mostrar Tudo |
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Thesagro: |
DNA; Filogenia; Fungo; Micorriza. |
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Thesaurus Nal: |
Mycorrhizae. |
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Categoria do assunto: |
P Recursos Naturais, Ciências Ambientais e da Terra |
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Marc: |
LEADER 02371naa a2200253 a 4500
001 2094151
005 2018-08-15
008 2018 bl uuuu u00u1 u #d
024 7 $a10.1007/s11557-018-1410-9$2DOI
100 1 $aSOUZA, F. A. de
245 $aRacocetra crispa (Glomeromycotina) delimited by integrative evidence based on morphology, long continuous nuclear rDNA sequencing and phylogeny.$h[electronic resource]
260 $c2018
520 $aHere, we describe a new ornamented arbuscular mycorrhizal (AM) fungus, Racocetra crispa sp. nov. isolated from maize fields from the central region of Minas Gerais State, Brazil. For the first time, a Glomeromycotina species is described using a long continuous nuclear rDNA sequence fragment, which encompasses the nearly complete 18S SSU sequence gene until the 3? end of the D2 region of the 28S LSU (~ 3100 bp), which allows for comparison with sequences obtained from regions used for fungal metagenomic studies, species description, and AMfungi DNA-barcode. The new species forms dark brown to black spores, approx. 340?510 ?m on in diam., on sporogenous cells. The spores have unique Bcloud/flower^ projections on the spore surface, two walls, and differentiate a multiple-lobed germ shield with up to 8?12 germ tube initiations. The analysis of the intra- and interspecific DNA-barcode sequence variation within the Racocetra showed that the intragenomic polymorphism among the clones of R. crispa (0?2 %) is within the lower range for the genus. The V3?V4 region of the SSU nrDNA has no resolution to discriminate Racocetra at species level, but from this fragment, we found homology between R. crispa and environmental sequences from two metagenomics studies, one carried out in Brazil at the fungus type location and the other in New Zealand. The integration between AM fungal sequences from reference strains and those obtained from environmental sequences in Glomeromycotina is still a problematic issue, mainly due to the reduced number of AM fungal species characterized based on DNA sequences.
650 $aMycorrhizae
650 $aDNA
650 $aFilogenia
650 $aFungo
650 $aMicorriza
700 1 $aSILVA, I. R. da
700 1 $aBARRETO, M. B. B. de B.
700 1 $aOEHL, F.
700 1 $aGOTO, B. T.
700 1 $aMAIA, L. C.
773 $tMycological Progress$gv. 17, p. 999-1011, 2018.
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Registro original: |
Embrapa Milho e Sorgo (CNPMS) |
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Classificação |
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Registro |
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Registro Completo
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Biblioteca(s): |
Embrapa Territorial. |
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Data corrente: |
04/10/2011 |
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Data da última atualização: |
03/05/2019 |
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Tipo da produção científica: |
Artigo em Anais de Congresso |
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Autoria: |
OLIVEIRA, D. P. de; PULIDO, J.; FRANCHESCHINI, M. H. D.; COSTA, P. A. da; ARRUDA, G. P. de; DEMATTÊ, J. A. M.; SOUZA FILHO, C. R. de; VICENTE, L. E. |
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Afiliação: |
DANIEL PONTES DE OLIVEIRA, ESALQ/USP - UFC; JAVIER PULIDO, ESALQ/USP - UFC; MARSTON HÉRACLES DOMINGUES FRANCHESCHINI, ESALQ/USP; PRISCILLA ALVES DA COSTA, ESALQ/USP; GUSTAVO PAIS DE ARRUDA, ESALQ/USP; JOSÉ ALEXANDRE MELO DEMATTÊ, ESALQ/USP; CARLOS ROBERTO DE SOUZA FILHO, IG/UNICAMP; LUIZ EDUARDO VICENTE, CNPM. |
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Título: |
Caracterização espectral de solos utilizando espectrorradiômetro em laboratório e imagem de satélite hiperespectral. |
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Ano de publicação: |
2011 |
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Fonte/Imprenta: |
In: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 15., 2011, Curitiba. Anais... São José dos Campos: INPE, 2011. |
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Páginas: |
p. 8476-8483. |
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Idioma: |
Português |
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Conteúdo: |
Data obtained with hyperspectral remote sensors have the advantage of containing a great spectral resolution, offering more details about spectral behavior of a particular target. The use of these images show high potential to describe soil mineralogical attributes. The main objective of this study was to obtain the spectral and mineralogical attributes of soils using hyperspectral satellite imagery and with data acquired at ground level; evaluation of a supervised classification routine for determination of soils texture; and estimate clay using multivariate analysis. Soil samples were collected at a 0-20cm depth and spectral measurements, texture and mineralogy analysis were made. Using GIS software, image processing and statistical packages, the information obtained in the laboratory has been analyzed. The use of hyperspectral imagery enhanced the mineralogical characterization of the studied area. The maximum likelihood classification algorithm showed great skill in distinguishing between four textures class created with the aim of hyperspectral data. The statistical method PLSR provided a satisfactory prediction of clay and sand, using data collected in the laboratory, with high coefficients of determination and low error values (RMSE). |
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Palavras-Chave: |
Processamento de imagens. |
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Thesagro: |
Geologia; Sensoriamento Remoto. |
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Categoria do assunto: |
-- |
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URL: |
https://ainfo.cnptia.embrapa.br/digital/bitstream/item/42859/1/Vicente-SBSR.pdf
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Marc: |
LEADER 02072nam a2200241 a 4500
001 1902332
005 2019-05-03
008 2011 bl uuuu u00u1 u #d
100 1 $aOLIVEIRA, D. P. de
245 $aCaracterização espectral de solos utilizando espectrorradiômetro em laboratório e imagem de satélite hiperespectral.
260 $aIn: SIMPÓSIO BRASILEIRO DE SENSORIAMENTO REMOTO, 15., 2011, Curitiba. Anais... São José dos Campos: INPE$c2011
300 $ap. 8476-8483.
520 $aData obtained with hyperspectral remote sensors have the advantage of containing a great spectral resolution, offering more details about spectral behavior of a particular target. The use of these images show high potential to describe soil mineralogical attributes. The main objective of this study was to obtain the spectral and mineralogical attributes of soils using hyperspectral satellite imagery and with data acquired at ground level; evaluation of a supervised classification routine for determination of soils texture; and estimate clay using multivariate analysis. Soil samples were collected at a 0-20cm depth and spectral measurements, texture and mineralogy analysis were made. Using GIS software, image processing and statistical packages, the information obtained in the laboratory has been analyzed. The use of hyperspectral imagery enhanced the mineralogical characterization of the studied area. The maximum likelihood classification algorithm showed great skill in distinguishing between four textures class created with the aim of hyperspectral data. The statistical method PLSR provided a satisfactory prediction of clay and sand, using data collected in the laboratory, with high coefficients of determination and low error values (RMSE).
650 $aGeologia
650 $aSensoriamento Remoto
653 $aProcessamento de imagens
700 1 $aPULIDO, J.
700 1 $aFRANCHESCHINI, M. H. D.
700 1 $aCOSTA, P. A. da
700 1 $aARRUDA, G. P. de
700 1 $aDEMATTÊ, J. A. M.
700 1 $aSOUZA FILHO, C. R. de
700 1 $aVICENTE, L. E.
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